JPH11237678A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the package efficiency of a printed circuit board and to obtain high reliability by providing the printed circuit board where an integrated circuit and a connecting part are concentrically packaged at specified positions and a driving circuit is arranged at the position away from the specified positions where they are concentrically packaged by specified length. SOLUTION: Since the terminal electrode of an LCD 404 and the terminal electrode of a CPU 401 controlling and driving the LCD are in both-side relation on a main board 301, a pattern need not be led round long and can be connected in the shortest distance through a through-hole. The main board 301 is made the hard printed circuit board and a switch input pattern is provided on the upper surface, so that a supporting member supporting the main board 301 at the time of pressing a switch need not exist on the back side. Therefore, a motor, a motive power transmitting mechanism, an image plane size switching mechanism and a finder image plane switching mechanism which require mounting area respectively arranged in the shortest distance on the wide back side of the main board 301. Thus, the compact camera is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a camera, and more particularly, to a camera having a printed circuit board on which electric components are mounted.

[0002]

2. Description of the Related Art Conventionally, in a camera having a normal photographing function, its electric circuit is mounted by disposing a main board for camera control and a liquid crystal panel (LCD) for external display on a top surface of the camera body. It was extremely large. This is for the following reason.

[0003] 1) It is easy to secure a large flat space for mounting a substrate on the upper surface of the camera. 2) The upper surface of the camera is a position where the LCD is easy to see when holding the camera. 3) Since the operation buttons of the camera are appropriately arranged on the upper surface of the camera for operation, the buttons can be operated while checking the LCD. 4) By bringing the LCD and various operation buttons close to the camera control main board, electrical connection between the main board and the LCD and between the main board and the operation button switches can be simplified, which is advantageous in cost.

[0004] On the other hand, recent cameras have become increasingly electronic and multifunctional, and the mounting scale of electric circuits has increased.
In addition, various switches and sensors are distributed and arranged at various places in the camera. For this reason, each of these electrical components is connected to a plurality of flexible printed circuit boards (FPs).
C), a mounting method is often adopted in which the main board for control of the camera and the plurality of flexible printed boards are electrically connected at a plurality of locations.

In a conventional camera, a display device (LCD) and a switch input pattern of an operation member are laid out near each other on a control board thereof, and a control unit (CPU) for driving the LCD includes The interface IC was laid out in the vicinity. And
The former and the latter were laid out at separate positions.

Further, with respect to a conventional mounting method of an electric component in a camera, a driver element for driving an actuator or a light emitting element is arranged independently in the vicinity of each actuator or light emitting element. In addition, a connection portion between a main board on which an integrated circuit for controlling a camera is mounted and a plurality of sub-boards on which sensors and switches are mounted is independently arranged in a portion close to the sensors and switches. I was Further, an external display device such as an LCD for displaying the state of the camera to the outside, and a connection portion with each substrate are separately and independently moved to a place where a sufficient space is easily secured due to ease of design. It was provided.

[0007]

However, the following problems exist with respect to the above-described conventional method for mounting electric components in a camera.

1) There are many places where power supply lines for supplying current to actuators and light-emitting elements and signal lines from sensors and switches must be arranged close to each other. As a result, noise generated by switching of the actuator and the light emitting element is likely to be erroneous on the signal line. Further, when the camera is operated continuously, there is a possibility that the integrated circuit may malfunction due to heat generated from a pattern in which a high current flows to the driver elements and actuators.

2) Since the connection portion and the external display device are not arranged intensively on the integrated circuit, it is necessary to wire a signal line connected to the integrated circuit to the connection portion and the external display device over a long distance on the substrate. Therefore, a large substrate area was required, and the camera was enlarged.

[0010] 3) Since the connecting parts are laid out separately at independent positions, the volume efficiency of the entire connecting part is poor, and as a result, the camera is enlarged.

The present invention has been made in view of the above problems, and has as its object to provide a small-sized camera having high mounting efficiency of a board and high reliability.

[0012]

In order to achieve the above object, a first camera according to the present invention comprises an integrated circuit for controlling the camera, a connection unit for transmitting and receiving electric signals, an actuator or light emitting device for the camera. A drive circuit for driving the element, a printed circuit board on which the integrated circuit and the connect portion are intensively mounted at a predetermined position, and the drive circuit is arranged at a position separated by a predetermined length from the intensively mounted predetermined position, It is characterized by having.

[0013] To achieve the above object, a second aspect of the present invention is provided.
In the camera of the first aspect, the connect portion and the integrated circuit are mounted on mutually opposite surfaces of the printed circuit board.

[0014] To achieve the above object, a third aspect of the present invention is provided.
In the camera of the first camera, the printed circuit board is a double-sided printed circuit board, and the connect portion and the integrated circuit are mounted on opposite printed circuit board surfaces that are substantially back surfaces of each other. I do.

[0015] To achieve the above object, a fourth aspect of the present invention is described.
The camera of the first aspect is characterized in that, in the first camera, the connect portion and the integrated circuit provided on the printed circuit board are collectively mounted in a substantially central portion of the camera.

According to a fifth aspect of the present invention, there is provided
The camera of the first aspect is characterized in that in the first camera, the printed circuit board is disposed at a position separated by a predetermined distance from a substantially central portion of the camera in a lateral direction.

According to a sixth aspect of the present invention, there is provided
The camera according to any one of the first to fifth cameras, wherein the integrated circuit is a CPU and / or an interface IC.
It is characterized by being.

According to a seventh aspect of the present invention, there is provided
The camera of any one of the first to sixth cameras, wherein the driving circuit includes a power transistor element.

In order to achieve the above object, an eighth aspect of the present invention is provided.
The camera of the first to seventh cameras is characterized in that the printed board is a hard printed board.

In order to achieve the above object, a ninth aspect of the present invention is provided.
A camera, an integrated circuit for controlling the camera, a connection unit for transmitting and receiving an electric signal, a display unit for displaying the state of the camera to the outside, a driving circuit for driving an actuator or a light emitting element of the camera, and the integrated circuit. The circuit, the connection unit and the display unit are collectively mounted at a predetermined position,
A printed circuit board on which the drive circuit is arranged at a position separated by a predetermined length from the predetermined position on which the package is mounted.

In order to achieve the above object, the first aspect of the present invention
The camera No. 0 is characterized in that, in the ninth camera described above, the printed circuit board is provided on an upper side of a camera body, and the display means is arranged so as to face the camera upper side.

In order to achieve the above object, the first aspect of the present invention
A ninth camera is the camera according to the ninth camera, wherein the printed circuit board is a double-sided printed circuit board, and the display means and the integrated circuit mounted on the connect portion are mounted on opposite printed circuit board surfaces substantially opposite to each other. It is characterized by having been done.

In order to achieve the above object, the first aspect of the present invention
A second camera is characterized in that, in the ninth camera, the integrated circuit provided on the printed circuit board, the connect unit, and the display unit are collectively mounted in a substantially central portion of the camera.

In order to achieve the above object, the first aspect of the present invention
A third aspect of the present invention is the camera according to the ninth camera, wherein the printed circuit board is disposed at a position apart from the substantially central portion of the camera by a predetermined distance in a lateral direction.

In order to achieve the above object, the first aspect of the present invention
The fourth camera is the ninth to thirteenth cameras,
The integrated circuit is a CPU and / or an interface IC.

In order to achieve the above object, the first aspect of the present invention
The fifth camera is the ninth to fourteenth cameras,
The driving circuit includes a power transistor element.

In order to achieve the above object, the first aspect of the present invention
The camera No. 6 is a camera according to the ninth to fifteenth cameras,
The printed board is a hard printed board.

In order to achieve the above object, the first aspect of the present invention
The camera according to claim 7, wherein the first printed circuit board has a camera sensor or switch signal line, an integrated circuit for controlling the camera, and a connect electrically connected to the signal line provided on the first printed circuit board. Part, a driving circuit for driving an actuator or a light emitting element of the camera,
A second printed circuit board having the integrated circuit and the connect portion are concentratedly mounted at a predetermined position, and the second printed circuit board is separated by a predetermined length from the predetermined position where the concentrated mounting is performed. The driving circuit is disposed at a position.

In order to achieve the above object, the first aspect of the present invention
The eighth camera is the same as the seventeenth camera, except that the first camera
The sensor provided on the printed circuit board is a sensor for auto focus.

In order to achieve the above object, the first aspect of the present invention
A ninth camera is characterized in that, in the eighteenth camera, the autofocus sensor is a PSD.

To achieve the above object, the second aspect of the present invention
0 camera is the same as the seventeenth camera,
The sensor provided on the printed circuit board is a photometric element.

[0032]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are an external top view and an external front view of a camera according to an embodiment of the present invention, respectively.

The appearance of the camera 1 is as shown in FIGS. 1 and 2. The front side is covered with a front cover 21, the rear side is covered with a rear cover 24, and the side faces are covered with a side cover 27. A lens frame unit (lens lens frame) 2 is provided substantially at the center of the front side of the front cover 21, and an exterior panel 22 is provided at an upper portion thereof. I have.

The front cover 21 is a member for covering the components inside the camera from the front, and has a grip 21a for holding the camera 1 on the left side. A strobe light emitting part 8 is provided inside the grip part 21a.
There is provided a strobe window 23 made of a transparent panel on which is disposed a projection 21b near the left side of the strobe window 23 for preventing a finger from touching the strobe window 23 during photographing. I have. Also, the front cover 21
A release button 30 for performing a release operation is provided on the left side of the zoom dial 31. A zoom dial 31 is provided around the release button 30 for performing zooming by putting a finger on a protrusion 31a and rotating the release button 30 right and left around the release button 30. Is provided. On the right side of the release button 30, a display L
An LCD window 29, which is a transparent window of the CD, is provided.
2. A flash mode button 33 for switching a flash mode, and a self-timer / remote control button 34 for setting a self-timer and a remote control shooting state are provided side by side. A button 35 is provided.

The lens frame unit 2 is a cylindrical frame member for supporting a photographic lens (not shown). A lens opening 7 is provided at the lens opening on the optical axis front side of the lens frame unit 2 so as to be open at the time of photographing so as to allow passage of a subject light beam, and to shield the photographing lens when carrying the lens.
1, 73 are provided.

The rear cover 24 is an exterior member that covers the rear side of the camera. A projection 24a for covering the viewfinder eyepiece is provided on the upper right side. A power button 36 for switching the power of the camera on / off, a date mode button 22 for switching the data imprinting mode, and a date set / illumination button 23 for setting the correction of the imprinted data and turning on the illumination of the display LCD. ing.

The back cover 25 is provided at the rear of the camera and is a cover member for taking in and out the film.

The exterior panel 22 as the light-transmitting member is fixed to the front cover 21 by bonding or welding.
This is one of the members that make up the appearance of the camera. In the exterior panel 22, a light-shielding paint film is integrally formed on the surface of a transparent member by injection molding, for example, by in-mold molding. The exterior panel 22 is provided with a finder entrance window 22b and a photometric window 22a at a position on the upper right side of the lens barrel 2, and the surfaces of these windows 22b and 22a are coated with a light-shielding paint film. It is translucent because it is not covered.
Further, the finder entrance window 22b and the photometric window 22 are used.
A window 22c for AF light projection is provided at a position between a and a window 22d for AF light reception at a position slightly above and to the left of the lens frame unit 2, and only infrared light is transmitted therethrough. A light-shielding paint having the property of being used is used. AF
A self-timer LED is provided near the left side of the light receiving window 22d.
A window 22e is provided, in which a light-shielding paint of a type that transmits red light is used, so that the lighting of the display LED provided inside can be observed from the outside during the operation of the self-timer. Has become.

FIGS. 3 and 4 are a top perspective view and a front perspective view, respectively, showing the internal structure of the camera 1. As shown in FIGS.

As shown in the figure, the lens frame unit 2 has a shutter unit 3 and a shutter plunger 11 inside.
1, a focus motor (AF motor) 108, a taking lens, and the like. The shutter unit 3 is a lens shutter driven by the shutter plunger 111. Further, a patrone 14 loaded with a film 13 is arranged in a patrone chamber in a grip formed on one side of the camera 1.

On the other hand, in front of the inner wall of the patrone room,
A DX code detecting device 9 is arranged, and two built-in batteries 10 are further provided in front of the grip portion.
Behind the battery 10, a main condenser 11 for strobe light emission is provided.

On the other side of the camera 1, a spool chamber 4
In the spool chamber 4b, a spool 217 for winding up the film 13 delivered from the patrone 14 is provided. Also, the spool 217
Inside, the main body drive motor (WZ motor) 20
1 for winding up, rewinding, zoom driving, and screen size switching operations of the film 13. Further, a switching plunger 206 for switching each operation of the main body drive motor 201 is provided in a substantially triangular space in front of the spool chamber 4b and near the lens barrel 2.

A panorama switching mechanism 7 is provided so as to extend from the space between the spool chamber 4b and the lens frame unit 2 to the back of the central part. The panorama switching mechanism 7 is driven by the main body drive motor 201 and switches the screen size between a standard size and a panorama size. In addition, a date imprinting device for switching the date imprinting position in conjunction with the screen size switching operation is provided.

As described above, the panorama switching mechanism 7 is disposed between the spool chamber 4b and the lens frame unit 2 (the hatched portion in FIG. 3). As a result, the number of transmission mechanisms can be reduced because the camera is disposed near the main body drive motor 201, and the screen size can be electrically switched without increasing the size of the camera.

The DX code detecting device 9 and the built-in battery 1
Above the main condenser 11, a strobe control board 323 which is a control board of the strobe light emitting unit 8 is provided. The strobe light emitting unit 8 is a light emitting unit including a Xe tube, a reflector, and the like, and is disposed above the front surface of the grip unit.
It is driven by the strobe control board 323.

On the lower surface side inside the camera 1, a main body drive mechanism 6 is provided. The main body driving mechanism 6 outputs the output from the main body driving motor 201 to the switching plunger 206.
, To wind and rewind the film 13, transmit power to the lens frame unit 2, and perform zoom driving, and transmit power to the panorama switching mechanism 7 to perform screen size switching.

A switching clutch portion 6a is disposed at a position substantially below the spool chamber 4b in the main body driving mechanism 6, and outputs an output from the main body driving motor 201 to the switching plunger 206 and the main body driving motor. Motor 2
In the initial stage of output, switching to each driven side is performed using the rotation direction of 01.

The mirror frame unit 2 and the spool chamber 4b
A finder unit 5 is disposed above the camera. The main part of the finder unit 5 includes a finder lens, a finder zooming mechanism, a distance measuring device, a photometric device, a finder screen size switching mechanism, and the like.

On the front of the finder unit 5,
A light-emitting element for distance measurement (IRED) 423 and objective lenses 151 to 153 of a finder are provided.
A photometric light receiving element 45 is provided on the upper front surface of the lens frame unit 2.
0, a light receiving element (PSD) 420 for distance measurement is provided.

The finder unit 5 is adapted to be zoomed in conjunction with the zooming operation of the lens frame unit 2 by a finder zooming mechanism comprising a rotating member 163, a driving belt 162, and a cam member 161.

Further, a viewfinder panorama switching mechanism 15 is disposed behind the camera in the viewfinder unit 5 and above the panorama switching mechanism 7. The finder panorama switching mechanism 15 is a mechanism that switches the finder field mask and the finder magnification by the power of the panorama switching mechanism 7 in conjunction with the panorama switching mechanism 7 when switching the screen size.

As described above, since the finder panorama switching mechanism 15 is disposed above the panorama switching mechanism 7, the number of transmission mechanisms is reduced, and the finder can be switched without increasing the size of the camera. .

A main board 301 is disposed almost all over the upper surface of the camera 1. The main board 301 is a hard printed board on which main electric circuit components of the camera are mounted, and is connected to various flexible printed boards as described later. The main substrate 301 includes a display circuit (LCD) 404 and a display illumination device 454 (see FIG. 74).
The display device 16 is provided. The details will be described later.

Next, the lens barrel of the camera according to the embodiment of the present invention will be described.

FIGS. 5 to 7 are central sectional views showing the structure of a lens barrel in the camera according to the embodiment of the present invention, and FIGS. 9 to 12 show the detailed structure of the lens barrel. It is an exploded perspective view. FIG. 5 shows a state of the focus group initial position (infinity side) at the wide angle end, FIG. 6 shows a state of the focus group extension position (closest side) at the wide angle end, and FIG. The state of the focus group initial position (infinity side) at the telephoto end is shown.

As shown in FIGS. 5 to 7, the present lens barrel includes a first lens group 141 and a second lens group 14 from the front.
A second lens group 143 and a fourth lens group 144 are provided. FIG. 8 is a view schematically showing the movement of each of the lens groups during the zoom operation. As shown in FIG. 8, among the lens groups, the first lens group 141 to the third lens group 143 are wide-angle. During the movement from the end to the telephoto end, the inside of the lens barrel is integrally moved.

Hereinafter, each part will be described in detail with reference to FIGS. 5 to 7 and FIGS. 9 to 12. 9 to 12 show the respective members exploded in the optical axis direction.

As shown in FIGS. 5 and 9, the fixed frame 52 of the lens barrel is fixed to a camera body (not shown) at the rear end.
A rectilinear key groove 52a into which three rectilinear keys 53b disposed at the rear end of the first lens group frame 53 (see FIG. 10) are fitted.
And a straight keyway 52d into which the FPC guide 78 (see FIG. 12) fits. A rotating frame 51 is rotatably fitted on the outer periphery of the fixed frame 52.
Grooves 52 are formed on the outer periphery of the distal end portion of the fixed frame 52 along the circumferential direction.
c is formed, and a C-ring 64 for locking the rotating frame 51 in the optical axis direction is mounted.

On the other hand, an inner frame 59
A cam groove 52b (see FIG. 12) that fits with the cam follower 59a is formed (FIG. 23 shows a developed view of the fixed frame 52). The inner periphery of the distal end of the fixed frame 52 is made of a flocked cloth or the like for preventing unnecessary light from entering the lens frame from a gap between the fixed frame 52 and the first lens group frame 53. The light blocking member 145 is fixed.

As described above, the rotating frame 51 is radially fitted to the outer periphery of the fixed frame 52 on the inner peripheral surface thereof, and is rotated in the optical axis direction by a C-ring 64 mounted on the tip of the fixed frame 52. The movement is locked. This allows
The rotating frame 51 is movable in the rotation direction with respect to the fixed frame 52, but the movement in the optical axis direction is restricted.

Further, a bottomed cam groove 51b for moving the first lens group frame 53 in the optical axis direction and a bottomed groove for moving the FPC guide 78 in the optical axis direction are provided on the inner periphery of the rotary frame 51. A cam groove 51c is formed (an exploded view is shown in FIG. 24), and a gear 51a is formed on the outer periphery, and a zoom gear 227, which is an output gear of the zoom drive unit, meshes with the gear 51a to perform rotational driving. . further,
A pattern sheet 76 of a zoom encoder for a zoom photoreflector 139 for detecting the zooming position of the zoom lens is fixed to the outer periphery of the rotating frame 51.

As shown in FIG. 10, the first lens group 1
A first lens group frame 53, which is a lens frame (mirror frame) of 41,
A linear key 53b that fits into the linear key groove 52a of the fixed frame 52 is formed at equal intervals on the outer periphery of the rear end, and is movable in the optical axis direction with respect to the fixed frame 52. Further, a cam follower 53a that fits into the cam groove 51b of the rotary frame 51 is formed on the upper surface of the straight key 53b. In the inner periphery of the first lens group frame 53, the position of the shutter base plate 81 (see FIG. 11) in the radial direction and the rotation direction is regulated, and the shutter base plate 81 (see FIG. 11) is sandwiched therebetween. Fastened by screws 65.

Further, a front frame 60 (see FIG. 11) and a middle frame 59 (see FIG. 12) are fitted around the inner periphery of the first lens group 53 so as to be freely rotatable in the circumferential direction. 57 (FIG. 12)
Roller 77) attached thereto, and the fourth
Linear keyway 53e for regulating lens group frame 57 in the rotation direction
(See FIG. 5) are formed at three locations on the inner circumference. Further, a through hole 53c for press-fitting a pin 75 for regulating the middle frame 59 in the optical axis direction is formed.

A barrier drive ring 69 for opening and closing the barrier is rotatably fitted in a radial direction at the distal end of the first lens group frame 53 in the optical axis direction, and the barrier protrudes from the hole at the distal end. It is connected to the drive gear 100b (see FIG. 11).

As shown in FIG. 12, the fourth lens group frame 57
Are fastened with screws so that the fourth lens group holding frame 56 holding the fourth lens group 144 is integrated,
Three pins 57a are implanted on the outer periphery, and a roller 77 is rotatably fitted to the pins 57a. The roller 77
Is fitted in a linear keyway 53e (see FIG. 5) provided on the inner periphery of the first lens group frame 53, whereby the fourth lens group frame 57 is It is movable only in the optical axis direction, and is not movable in the rotation direction.

A fourth lens group spring 62 is provided between the fourth lens group frame 57 and the shutter base plate 81 (see FIG. 11).
Is disposed with a spring receiver 63 therebetween, and the roller 7 is always
7 is urged to abut against the end face cam 59b of the middle frame 59.

The outer periphery of the middle frame 59 and the inner periphery of the first lens group frame 53 (see FIG. 10) are fitted in the radial direction.
The leading end of a pin 75 press-fitted from the outer periphery of the first lens group frame 53 fits into a groove 59c formed on the outer periphery, so that the pin 75 moves integrally with the first lens group frame 53 in the optical axis direction. The rotation is freely held. The middle frame 5
A cam follower 59a that fits into the cam groove 52b of the fixed frame 52 is formed on the outer periphery of the fixing frame 52. The middle frame 5
An interlocking plate 66 is fixed to the outer periphery of 9. Further, an end cam 59b is formed at one end of the middle frame 59.

As shown in FIG. 11, the front frame 60 is rotatably fitted to the inner periphery of the first lens group frame 53 at the outer periphery thereof, and a plurality of the second lens group frames 54 are fitted to the inner periphery. A plurality of rectilinear key grooves 60b into which the rectilinear keys 54a are fitted (see FIG. 5).
Is formed, and a second lens group spring 61 which is a compression spring is disposed between the second lens group frame 54 and the second lens group frame 54. A gap 66 at the tip of the interlocking plate 66 is provided around the front frame 60.
a is formed between the middle frame 59 and the projection 60a.
(See FIG. 1).
3, see FIG. 14).

Since the front frame 60 is radially fitted to the inner periphery of the first lens group frame 53, the interlocking plate 66
As compared with the case where the second lens group frame 54 is directly rotated, the eccentricity with respect to the rotation of the second lens group frame 54 can be minimized, and high optical performance can be maintained.

A barrier drive switching lever 101 for connecting the focus drive gear train 146 and the barrier drive gear train 147 is provided on the inner peripheral surface of the front frame 60, and in a state other than the collapsed state. The position of the barrier drive switching lever 101 is regulated so that the connection is not performed.
There is provided a barrier drive switching lever position regulating cam for regulating the position of the barrier drive switching lever 101 so as not to hinder the connection of the levers 1.

The second lens group frame 54 holds the second lens group 142, and is formed with a plurality of rectilinear keys 54a to be fitted into the plurality of rectilinear key grooves 60b of the front frame 60, and is formed on the rear side. A cam follower 54b is formed at an end of the third lens group frame 55 so as to contact an end cam 55c formed on the inner peripheral surface of the third lens group frame 55. Also, the second lens group frame 54
A second lens group spring 61 is interposed between the front end and the rear end of the front frame 60. Further, the straight key of the second lens group frame 54 is fitted in the key groove 60 b of the front frame 60. Thus, the second lens group frame 54 and the front frame 60 rotate integrally in the rotation direction, but can freely move back and forth in the optical axis direction. The urging force of the second lens group spring 61 is such that the cam follower 54b is moved to the third lens group frame 55.
In contact with the end face cam 55c formed at the end.

The third lens group frame 55 holds the third lens group 143. An end face cam 55c having a displacement along the circumferential direction is formed on the end face in the optical axis direction on the inner periphery. A cam follower 55d is formed to abut on the cam portion 58a of the focus cam ring 58.

FIG. 15 shows the second lens group frame 54 and the third lens group frame 54.
FIG. 5 is a side view showing a lens group frame 55 and a focus cam ring 58, and the cam follower 54b, the end cam 55
c, the positional relationship between the cam follower 55d and the cam portion 58a.

The cam follower 54b of the second lens group frame 54 comes into contact with the end face cam 55c of the third lens group frame 55 by the urging force of the second lens group spring 61, and the third
The cam follower 55d of the lens group frame 55 contacts the cam portion 58a of the focus cam ring 58.

As shown in FIG. 11, a projection having a hole 55a formed in the optical axis direction is formed on the outer peripheral surface of the third lens group frame 55. On the other hand, a straight key 55b is formed at a position substantially opposite to the protrusion. A rod 89 held between the shutter base plate 81 and the shutter lid 82 of the shutter unit is provided in the hole 55a.
Are inserted, and the straight key 55b is inserted into a not-shown groove formed on the shutter base plate 81. Thus, the third lens group 55 cannot rotate with respect to the shutter base plate 81 and can move only in the light turning direction.

The interlocking plate 66 is, as shown in FIG.
It is fixed to the outer peripheral portion of the middle frame 59 and has a gap 6 at the tip thereof.
By sandwiching the outer peripheral projection 60a of the front frame 60 between 6a, the middle frame 59 and the front frame 60 are connected so as to rotate integrally. When moving from the short focus end to the collapsed state, the barrier drive switching lever 101 that connects the focus drive gear train 146 and the barrier drive gear train 147 at the end face 66b is brought into a connected state.

As shown in FIG. 10, the barrier drive ring 69 is fitted to the front end 53f of the first lens group frame 53 with an inner diameter portion 69e and is rotatable. FIG.
0, as shown in FIG. 21, it is connected to the barrier drive gear 100b by the internal gear 69a, and the periphery of the connection is in a bag-like, substantially closed state. On the surface (front side of the camera) opposite to the internal gear 69a, two plate-shaped barrier springs 70 in the figure are arranged at positions facing each other. The blade 71 and the barrier blade 73 are opened and closed (see FIGS. 20 and 21).

The barrier spring 70 is a plate spring having a bent portion formed in the middle, and is disposed on the circumference of the barrier drive ring 69 as shown in FIGS.
Then, both ends of the protrusion 6 of the barrier drive ring 69 are formed.
9b, and a guide hole 70 formed in the bent portion.
The projection 69d is fitted into the a, and is disposed on the barrier drive ring 69 in a state where the movement in the optical axis direction and the rotation direction is restricted.

As shown in FIG. 10, the barrier blade 71 has a boss 53 projecting from the tip of the first lens group frame 53.
Two arms having the same shape are arranged on the first lens group frame 53 so as to be rotatable about g. As shown in FIG. 20, a projection 71c urged by the barrier spring 70, a projection 71a for driving the barrier blade 73 in the closed state, and a projection of the barrier blade 73 in the open state. Recess 71b for biasing 73b
Are formed.

The barrier blade 73 is connected to the barrier blade 7
Similar to 1, the arm is rotatable about a boss 53g at the tip of the first lens group frame 53.
Are disposed in the first lens group frame 53. And
As shown in FIG. 20, the barrier blade 71 is in the closed state.
In the open state, the projection 73b is urged by the barrier blade 71 to perform an opening / closing operation.

The cover ring 74 is attached to the tip of the first lens group frame 53 to regulate the positions of the barrier drive ring 69, the barrier blade 71, and the barrier blade 73 in the optical axis direction.

As shown in FIGS. 25 and 26, the FPC guide (flexible printed circuit board guide) 78
An engaging portion 78 that fits into the straight key 52d of the fixed frame 52.
b, a cam follower 78c that engages with the cam groove 51c of the rotating frame 51, and an arm portion 78a that presses the lens frame flexible substrate 302 disposed inside the lens frame. The lens frame flexible printed circuit board 302 is assembled so as to form a U-shape with the arm portion 78a, and is driven in the optical axis direction by a cam of the rotating frame 51 by a moving amount of about half of the extending amount of the first lens group frame 53. Further, the arm portion 78a regulates the operation guide of the lens frame flexible printed circuit board 302 and the spread in the optical axis direction.

FIG. 27 is a conceptual diagram of a flexible printed circuit board for connecting the main parts of the drive circuit.

The shutter unit 3 is provided in the lens barrel.
Are provided, and a focus motor 108, a shutter plunger 111,
A photo-reflector 110 for shutter trigger, a photo-interrupter 109 for focus, and the like are provided. Actuator, sensor, etc. and zoom motor 20
1, the display device 307, the release switch 318, and the control circuit 12 mounted on the main board 301 in the camera body are connected by the lens frame flexible printed board 302. These actuators and sensors will be described later in detail.

Returning to FIG. 5, behind the shutter base plate 81, two shutter blades 92A and 92B are provided. The shutter blades 92A and 92B are normally closed so as to block the light beam passing through each lens group, and are opened for a predetermined time by a release operation, and then closed. The shutter blades 92A, 9
2B is a blade holder 9 fixed to the shutter base plate 81.
The blade holders 93, 94 are movably sandwiched between the shutter blades 3, 94. The blade holders 93, 94 serve as a guide when opening and closing the shutter blades 92A, 92B.

The focus motor 108 is fixed to the shutter base plate 81, and a pinion gear 105 is fixed to the output shaft. The rotation of the focus motor 108 is controlled by a focus drive gear train 146 (see FIG. 11).
To rotate the focus cam ring 58 to perform a focusing operation.

The sealing member 68 provided at the tip of the fixed frame 52 is a member for preventing water drops from entering the camera, and is made of an elastic material. The fixed frame 52 is behind the camera.
The outer peripheral side is fixed to the front cover 21. On the inner diameter side, it is pressed against the first lens group frame 53,
The first lens group frame 5 can be moved straight forward to prevent the water droplets from entering the camera.
A lip 68a is provided which is in line contact with the ring 3 in a ring shape.

Next, the zoom operation of the lens barrel will be described.

First, the zoom operation from the state of the short focus end of the lens frame shown in FIG. 5 to the long focus side shown in FIG. 7 will be described.

When drive power is supplied to the zoom motor 201 provided at a predetermined position in the camera body, the gear 227 is turned on.
(See FIG. 9) is driven, and the rotating frame 51 is rotated. When the rotating frame 51 is rotated clockwise as viewed from the subject side, the first
The cam follower 53a of the lens group frame 53 fits into the cam groove 51b of the rotary frame 51, and the linear keyway 52 of the fixed frame 52
a, the movement in the rotation direction is restricted by
The lens group frame 53 advances straight in the left direction of the optical axis (toward the subject) in the figure.

At this time, the middle frame 59 is also in the first lens group frame 53.
Simultaneously moving to the left with respect to the optical axis,
Is rotated clockwise by the cam on the inner circumference of the. The rotation of the middle frame 59 changes the position of the cam 59b of the middle frame 59 that contacts the roller 77 of the fourth lens group frame 57, and thereby the relative position of the fourth lens group frame 57 with respect to the first lens group frame 53. Changes.

The interlocking plate 66 fixed on the outer periphery of the middle frame 59 rotates integrally with the middle frame 59, and accordingly, the front frame 60 is engaged with the front frame 60 by a straight key. The second lens group frame 54 also rotates by the same rotation angle as the middle frame 59. By this rotation, the second lens group frame 54
The contact position of the cam follower 54b with the end face cam 55c of the third lens group frame 55 changes, and as a result, the relative distance between the second lens group 142 and the third lens group 143 changes.

By the rotation of the rotary frame 51, the FPC guide 78 also moves to the left along the optical axis by about half the amount of the first lens group frame 53, so that the mirror frame flexible substrate 302 attached to the shutter base plate 81 becomes a mirror. Suppresses the attempt to spread toward the center of the optical axis inside the frame.

In the above description, the drive from the short focus side to the long focus side in the lens barrel has been described. However, the reverse drive from the long focus side to the short focus side rotates the rotary frame 51 counterclockwise. It can be realized by rotating.

Next, the focus driving mechanism in the lens barrel according to the present embodiment will be described.

FIGS. 16 and 17 are exploded perspective views showing the structure of the focus drive mechanism of the present embodiment.

As shown in FIG.
Reference numeral 08 is fixed to the shutter base plate 81. A pinion gear 105 is fixed to an output shaft 108a of the focus motor 108. An idle gear 106 rotatably supported by the shutter base plate 81 is meshed with the pinion gear 105. Further, an idle gear 107 rotatably supported by the shutter base plate 81 is meshed with the pinion gear 105.

The gear 83, the gear 84, the gear 8
5, a gear 86 is a two-stage reduction gear, which is rotatably supported by the shutter base plate 81. Further, the gear 87 is an idle gear, and the small-diameter gear portion 87b of the gear 87, the focus cam 58a, the gear portion 58
b.

When performing focusing, drive power is supplied to the focus motor 108 from the camera body.
As a result, the focus cam ring 58 rotates, and the third
The rotation of the lens group frame 55 is regulated by the rod 89 and the rectilinear key 55b, and the lens group frame 55 is linearly moved leftward on the optical axis. At this time, since the second lens group frame 54 is also engaged with the straight key groove of the front frame 60, the second lens group frame 54 moves straight to the left of the optical axis by the same movement amount as the third lens group frame 55 without rotating. Moving.

As a result, the second lens group frame 54 and the third lens group frame 55 move together in the optical axis direction by the amount of focus adjustment without changing the distance between them, determined by the zoom operation. Then, the state shown in FIG. 5 changes to the state shown in FIG.

The gear 88 is rotatably supported by the shutter base plate 81, and has a slit blade 88b. The number of rotations of the motor is detected by counting the number of slit blades 88b by the focus photo interrupter 109. That is, by counting the pulses of the focus photo interrupter 109, the rotation angle of the focus cam ring 58, that is, the extension amount of the second lens group frame 54 and the third lens group frame 55 can be known.

The gear 98 and the two-stage gear 99 are both rotatably supported by the barrier drive switching lever 101, and the barrier drive gear 100 is rotatably supported by the shutter base plate 81. I have. The gear portion 100a at one end of the barrier drive gear 100 is meshed with the large-diameter gear portion 99b of the two-stage gear 99, and the barrier drive gear portion 100b at the other end is connected to the barrier drive ring 6.
9 with the internal gear 69a.

The barrier drive switching lever 101 is pivotally supported by the shutter base plate 81 so as to be swingable.
01a is pushed by the interlocking plate 66, the position where the gear 98 meshes with the gear portion 58b of the focus cam ring 58, and the pin 101b is pushed by the cam portion 60B of the front frame 60, and the gear 98 is moved to the gear portion 58 of the focus cam ring 58.
Move between b and the position where it does not mesh.

Next, the operation of the above-described focus driving mechanism will be described.

The operation of the mechanism will be described below with reference to FIGS.

First, when the release switch 429 is turned on, distance measurement is performed by an autofocus sensor described later. At this time, the extension amounts of the second lens group 142 and the third lens group 143 during the focus operation are obtained by calculation. Then, a target number of pulses to be delivered is obtained from the calculated delivery amount.

Next, the lens reset operation is performed by rotating the focus motor 108 in the reverse direction. That is, when the focus motor 108 is reversed, the focus cam ring 58
Rotates in the direction of arrow A in FIG. This allows
The stopper 58c of the focus cam ring 58 contacts the stopper 81d of the shutter base plate 81 and stops.

Next, the focus motor 108 is rotated forward. As a result, the focus cam ring 58 is
During 6, rotation in the direction of arrow B is performed. At this time, the pulse signal from the photo interrupter 109 is monitored.
Then, the focus motor 108 is decelerated from the point in time when the number of pulses reaches the target number of pulses to be delivered. When the number of pulses from the photo interrupter 109 reaches the target number of pulses, the focus motor 1
08 is stopped.

As a result, the second lens group 142 and the third lens group 143 are extended according to the distance from the subject,
The focus operation ends. Thereafter, the shutter operates to perform exposure.

Next, a lens barrier drive mechanism in the above-mentioned lens barrel will be described with reference to FIGS.

The barrier drive switching lever 101 is pivotally supported by the shutter base plate 81 so as to be swingable. Also, gear 98
And the two-stage gear 99 are connected to the barrier drive switching lever 1.
01 are fixedly rotatably supported by the fixedly implanted shafts. On the other hand, the barrier drive gear 100 is
1 and rotatably supported by the barrier drive gear 1
The gear 100a formed at one end of the gear 00 and the gear 99b of the two-stage gear 99 mesh with each other. Further, the gear 99a of the two-stage gear 99 is engaged with the gear 98.

The barrier drive switching lever 101 has a position where one end 101a is pushed by the end face of the interlocking plate 66 (see FIG. 5) when the lens is collapsed, and meshes with the gear 98 and the gear 58b of the focus cam ring 58. Then, the pin portion 101b is pushed by the cam portion 60c of the front frame 60, and the gear 98 and the gear 58b swing between positions where they do not mesh.

In FIGS. 20, 21 and 22,
The barrier drive ring 69 is rotatably fitted to the distal end 53f of the first lens group frame 53. An internal gear 69a is formed on the inner diameter of the barrier drive ring 69, and meshes with a gear 100b formed on the other end of the barrier drive gear 100.

Further, a barrier spring 70 is fixed to the barrier drive ring 69. Thus, the barrier blade 71 is urged. The barrier blade 71 is swingably attached to the first lens group frame 53 with a boss 53d provided at the end of the first lens group frame 53 as a swing center. Then, the projection 71c biased by the barrier spring 70, the projection 71a for driving the barrier blade 73 in the closed state, and the projection 73b of the barrier blade 73 in the open state are biased. Recess 71b is formed.

The barrier blade 73 is connected to the barrier blade 7.
Similarly to 1, the boss 53d at the tip of the first lens group frame 53 is swingably attached to the first lens group frame 53 with the center of swing. When the barrier is closed, the projection is biased by the projection 71a of the barrier blade 71. When the barrier is open, the projection 73b is driven by the barrier blade 71 to open and close. A cover ring 74 is attached to the tip of the first lens group frame 53 to regulate the positions of the barrier drive ring 69, the barrier blade 71, and the barrier blade 73 in the optical axis direction.

Next, the operation of the lens barrier drive mechanism will be described.

First, when the power switch is turned off, power is supplied to a zoom drive unit (not shown), and the zoom motor 201 rotates. As a result, the rotating frame 51 is rotated counterclockwise, and the first lens group frame 53 is further moved to the collapsed position. At this time, the middle frame 59 also moves to the collapsed position by the movement of the first lens group frame 53. further,
One end 101a of the barrier drive switching lever 101 is pressed by the interlocking plate 66 that rotates integrally with the middle frame 59, and the barrier drive switching lever 101 is swung (in the direction of arrow c in FIG. 16). , The gear 98 and the gear 58b mesh with each other. That is, the power of the focus motor 108 is transmitted to the barrier drive gear 100.

Next, power is supplied to the focus motor 108. When the focus motor 108 rotates counterclockwise, power is transmitted to the barrier drive gear 100 via the gear train, and the barrier drive gear 100 rotates counterclockwise. As a result, the gear portion 100b provided at one end of the barrier drive gear 100 meshes with the internal gear 69a, so that the barrier drive ring 69 rotates counterclockwise. At this time, the barrier blade 71 is pressed by the barrier spring 70, and the barrier blade 71 swings in the barrier closing direction. On the other hand, the barrier blade 73 is pushed by the projection 71a of the barrier blade 71, and also swings in the barrier closing direction. At this time, the pulse signal from the focus photo interrupter 109 is counted, and when it is detected that the focus motor 108 has rotated by a predetermined number of pulses necessary for closing the barrier, the motor is stopped.

Next, the barrier opening operation will be described.

When the power switch is turned on, first, power is supplied to the focus motor 108 to rotate the focus motor 108 clockwise. Thus, the power of the focus motor 108 is transmitted, and the barrier drive ring 69 rotates clockwise. In addition, the barrier blade 71
The projection 71c of the barrier blade 71 is pushed by the barrier spring 70 and moves in the opening direction. On the other hand, the barrier blade 73
The projection 73b is pushed by the barrier blade 71 and also moves in the opening direction. At this time, the pulse signal from the focus photo-interrupter 109 is counted as in the case of the above-described closing, and the motor is stopped when it is detected that the focus motor 108 has rotated by a predetermined number of pulses.

Next, power is supplied to a zoom drive unit to be described later, and the zoom motor 201 rotates. As a result, the rotating frame 51 is rotated clockwise, and as a result, the first lens group frame 53 moves to a position where photographing is possible. The middle frame 59 rotates with the movement of the first lens group frame 53.
That is, the front frame 60 rotates via the interlocking plate 66.

At this time, the cam portion 60c of the front frame 60
Pushes the pin 101b of the barrier drive switching lever 101, so that the barrier drive switching lever 101 swings to a position where the gear 98 and the gear 58b do not mesh with each other. As a result, the barrier drive gear 100 and the focus motor 108
Is interrupted, and normal shooting becomes possible.

According to the above-described embodiment, the connection between the internal gear and the barrier drive gear is substantially closed, so that dust and the like can be prevented from entering this portion, and the dust and sand can be removed from the tooth surface of the gear. It is possible to prevent malfunctions or the like that occur when the gears are attached to the gears and pinched between the gears.

Further, by performing the rotational fitting of the barrier drive ring at the inner diameter portion, a space can be provided between the camera lower surface side of the outer peripheral portion where dust and the like tend to accumulate and the rotating member. Even if dust or the like accumulates in this portion, the operation of the rotating member is not affected, and malfunction can be prevented.

Further, since the front end surface adjacent to the rotary fitting portion between the barrier drive ring and the lens frame is substantially flush, dust and the like hardly accumulate at the mouth of the rotary fitting portion, and Can be prevented from malfunctioning due to the entry of the vehicle.

Furthermore, in the zoom lens optical system having a plurality of lens groups which are integrally extended during the focus operation by changing the distance between them during the zoom operation,
It is possible to provide a lens barrel having a structure in which the position of the lens group extended at the time of the focus operation is maintained with high accuracy and the dimension in the radial direction is extremely small. That is, the change of the group interval due to the zooming of the focusing optical system,
An increase in the radial dimension is suppressed by providing an end face cam on one of the lens frame that rotates during zoom operation and a lens frame that is held so that it can move straight in the optical axis direction, and a cam follower on the other. Since the driving force during the zoom operation is transmitted to the focusing group by a thin plate-shaped connecting member, it can be mounted in a very small space, and as a result, other members can be efficiently arranged in the empty space, and as a whole A compact lens barrel can be realized.

Further, by using a very small number of simple members for the cam frame for transmitting the zooming driving force to the plurality of lens barrels, the lens barrels can be held easily and with high accuracy, and the small lens barrel can be reduced in height. Can be provided at cost.

Next, details of the shutter mechanism according to the embodiment of the present invention will be described.

FIG. 28 is an exploded perspective view of the main part showing the structure of the shutter mechanism of the present embodiment, with the optical axis direction shown up and down in the figure. 29 and 30 are views for explaining the operation of the shutter mechanism. FIG. 29 shows a state when the shutter is closed, and FIG. 30 shows a state when the shutter is opened.

As shown in FIG. 28, behind the shutter base plate 81 (downward in the figure), a blade holding member 9 having a disk shape is provided.
3. A blade retainer 94 is provided fixed to the shutter base plate 81. Openings 93b and 94 through which the photographing light beam passes are provided at the center portions of the blade holder 93 and the blade holder 94, respectively.
b is formed, and a cutout is formed in a part of the outer peripheral portion.

Two shutter blades 92A and 92B are arranged between the blade holders 93 and 94. The shutter blade 92A and the shutter blade 92B
Is pivotally attached to the shutter base plate 81 at pivot centers 92a and 92b provided at the base end thereof, and is a closed position for covering the openings of the blade retainer 93 and the blade retainer 94; It moves between an open position through which a photographing light beam passes. A slot 92 is provided at the overlapped portion at the base end of the shutter blades 92A and 92B.
c and 92d are provided so that a pin 90a of a shutter lever 90, which will be described later, is inserted together with the notch.

On the circumference of the blade retainer 93, three slits 93a are formed at equal intervals. In FIG. 28, a blade holder 95 having an outer periphery smaller than the blade holder 93 is provided on the upper surface of the blade holder 93. This wing retainer 95
An elastic arm portion 95a is formed to extend outward from a position on the outer periphery facing the slit 93a of the blade retainer 93. Further, the elastic arm portion 95a has a distal end portion bent downward in the figure from the middle, the distal end portion is inserted into the slit 93a, and the distal end is fitted to the shutter blades 92A, 92B. Elastic contact.

The distal end of the elastic arm portion 95a elastically comes into contact with the shutter blades 92A and 92B near the final region of the opening stroke of the shutter blades 92A and 92B so as to brake the shutter blades 92A and 92B. Has become.

The inner peripheral portion of the shutter base plate 81 is substantially U-shaped.
A shutter lever 90 having a U-shape is provided so as to be pivotally supported by the shutter base plate 81 about a cylindrical portion 90e extending upward in the figure as a center axis. A pin 90a extending downward in the middle of one arm of the shutter lever 90 is connected to the shutter blades 92A, 92A.
Slots 92c, 92d drilled in the overlapped portion at the base end of B
Is engaged. Thereby, the shutter lever 90
Swings in the direction of the arrow in the figure, and the shutter blades 92A, 92
B moves between a closed position and an open position.

One arm of the shutter lever 90 further extends upward in the drawing in the opposite direction to the pin 90a to form an arm 90d.
A cam follower 90b facing the cam portion of the locking arm 96, which will be described later, is formed at the distal end of the cam follower 90b.

A toggle spring 91 is wound around the base end of the shutter lever 90, that is, the cylindrical portion 90e. In the arranged locking portion 81a,
The other end is in contact with the arm portion 90d of the shutter lever 90. Thereby, the shutter blades 92A,
92B is urged by the toggle spring 91 so as to be driven in the opening direction.

A plunger 111 having an iron core 112 is disposed near the other arm 90c of the shutter lever 90. The plunger 111 is fixed to the shutter base plate 81, and when power is supplied from a power supply unit (not shown), the iron core 112 is attracted. The iron core 112 protruding from the plunger 111
The tip is urged by a spring 113 in a protruding direction. When power is not supplied to the plunger 111, the tip comes into contact with the other arm 90c of the shutter lever 90 and is pressed. The shutter blades 92A and 92B are biased by a strong force in a direction to close them.

FIG. 31 is a side view showing the shutter lever, the locking arm, and its peripheral portion in the shutter mechanism of the present embodiment.

As shown in the figure, the locking arm 96 is mounted on the shutter base plate 81 (see FIG. 28) so as to be pivotable in the direction of arrow P in the figure. The locking arm 96
A winding portion of a toggle spring 97 is wound around a base end of the toggle spring 97, and one end of the toggle spring 97 contacts the locking portion 81b.
The other end is a swinging part 96 formed in a fan shape of the locking arm 96.
d is on one side. As a result, the swing portion 9
6d is urged upward in the figure, and the swing portion 96d
The tip of a cam follower 96c extending upward in the figure from the other side is in contact with the cam portion 60B of the front frame 60. Since the cam portion 60B is displaced in the circumferential direction, when the front frame 60 rotates in the direction of arrow Q in the drawing, the locking arm 96 swings in the direction of arrow P. Has become.

FIG. 32 shows the locking arm 96 and the shutter lever 9 viewed from the direction of arrow A in FIG.
0 is shown.

A cam surface 96b is formed at the tip of the swinging portion 96d of the locking arm 96. When the shutter blade is opened, the cam surface 96b is formed at the tip of the arm 90d of the shutter lever 90. The cam follower 90b abuts and stops. That is, the cam surface 9
6b regulates the opening diameter when the shutter blades are opened. When the shutter blades are closed, the shutter lever 90 is arranged apart from the cam surface 96b.

By the way, when the shutter blade is opened,
Due to the repulsive force of the shutter blades 92A and 92B and the repulsive force of the shutter lever 90 and the locking arm 96, the shutter blades 92A and 92B bounce and move in the closing direction,
It is possible that accurate exposure cannot be obtained. Therefore, in the shutter mechanism of the present embodiment, the shutter blade 92
The elastic arms 95a of the blade retainer 95 are elastically brought into contact with A and 92B near the end of the opening stroke to brake the shutter blades and prevent bouncing.

Next, the aperture correcting mechanism in the shutter mechanism of the present embodiment will be described.

In this embodiment, the opening diameter when the shutter is opened is determined by bringing the shutter lever 90 into contact with the cam portion 96b of the locking arm 96. By the way, when the shutter lever 90 comes into contact with the cam portion 96b, an impact force is applied to the cam portion 60B of the front frame 60. For this reason, the cam portion 60B is formed as a part of the lens barrel,
When the impact force is in the same direction as the direction of movement of the cam, the cam is moved by the impact force, and the lens barrel is moved by the impact force transmitted to the lens barrel.

As a result, the image formed on the film surface moves, and the image projected on the film loses sharpness, resulting in a blurred photograph. Therefore, in the present embodiment, the impact force is applied to the direction of the pivot axis of the locking arm 96 so that the impact force is applied to the locking arm 9.
6 so that it does not become a swinging power. Further, the reaction force of the impact force between the shutter lever 90 and the locking arm 96 is not transmitted directly to the lens barrel.

Next, the shutter / bounce prevention mechanism of the shutter mechanism in this embodiment will be described.

In this embodiment, in order to prevent shutter bounce, the shutter blades 92A and 92B are brought into contact with the elastic arms 95a to apply a brake to the shutter blades.

By the way, in the mechanism of the lens shutter system in which the relationship between the time and the opening diameter is determined by the toggle spring 91 as in this embodiment, the force of the toggle spring 91 is very small. For this reason, the elastic arm portion 95a and the shutter blade 92
A and 92B are required to have stable contact force. If this force is large, the shutter blades 92A, 9
2B results in a malfunction, and a smaller size results in a larger bound.

FIG. 33 is a side sectional view showing the elastic arm portion 95a and its peripheral portion.

To stabilize the contact force between the elastic arm portion 95a and the shutter blades 92A and 92B, as shown in FIG.
As shown in the figure, the flat portion of the blade retainer 95 and the elastic arm portion 95a
The difference (height) h from the tip must be stable. The elastic arm 95a and the shutter blades 92A, 9
Since it is desirable that the amount of force in contact with 2B is very small and the spring constant is small, the smaller the longitudinal coefficient, the better. However, such a material has poor workability, and the height h of the elastic arm portion 95a is not stable. Further, for example, when the elastic arm portion 95a is manufactured using a material such as PET (polyester film), the height h changes depending on temperature and humidity. That is, as shown in FIG. 34, a deviation of Δh occurs.

In the present embodiment, the blade holder 93 is provided with the slit 93a as described above, and the elastic arm 95a is inserted into the slit 93a. As a result, the height h of the elastic arm portion 95a is determined by the two points of the end faces 93a 'and 93a "of the slit 93a, and the height h is stabilized.

Next, the barrier opening / closing operation of the shutter mechanism in this embodiment will be described.

When shifting from the short focus state to the collapsed state,
The interlocking plate 66 urges the barrier drive switching lever 101 into engagement to bring the gear train of the focus drive unit and the gear train of the barrier drive unit into a connected state. When the focus drive unit is driven in this state, the barrier drive gear 100 rotates,
The rotation of the barrier drive ring 69 causes the barrier blade 71 and the barrier blade 73 of the barrier member to open and close.

Next, the operation of the shutter mechanism in this embodiment will be described.

First, when the release switch 249 is turned on, photometry is performed to determine the exposure. Thereby, the time of the timer for determining the exposure time is set. Next, when power is supplied to the plunger 111, the iron core 112 is attracted, and the iron core 112 retreats from the shutter closed position of the shutter lever 90. Thus, the shutter lever 9
0 is rotated by the biasing force of the toggle spring 91, and the shutter blades 92A and 92B move toward the open position (see FIG. 30).

Thereafter, the tips of the shutter blades 92A and 92B cross the shutter photoreflector 110,
The shutter photo reflector 110 turns on.

A timer is started by a signal from the shutter photo reflector 110, and when the timer reaches a set count value, the plunger 111 is turned off.

As a result, the iron core 112 of the plunger 111 is pushed out by the spring 113, and the tip b of the iron core 112 pushes the other arm 90c of the shutter lever 90 in the direction indicated by the arrow X in FIG. Then, the shutter lever 90 swings in the closing direction of the shutter blades 92A and 92B, and the shutter blades 92A and 92B are closed to complete the exposure.

When the timer is longer than a predetermined time, the arm 90b of the shutter lever 90 comes into contact with the cam surface 96c of the locking arm 96 and stops. At this time, the shutter opening waveform has a trapezoidal shape as shown in FIG. When the shutter blades 92A and 92B bounce, the opening waveform becomes a non-trapezoidal shape as shown in FIG. 36. In the present embodiment, the shutter blades 92A and 92B are braked as described above. Therefore, no bouncing occurs, and therefore, the opening waveform is as shown in FIG.
It becomes as shown in.

According to the shutter mechanism of this embodiment having such a configuration, the height of the bent portion of the elastic arm portion 95a can be stabilized, so that the brakes are stably applied to the shutter blades 92A and 92B. be able to. Therefore, the bounce of the shutter blade is prevented, so that accurate exposure can be obtained.

Next, the drive system of the camera body will be described.

FIG. 37 is a schematic configuration diagram showing a main part of a camera according to the present embodiment, and FIG. 38 is a perspective view showing a main part of the camera.

FIGS. 39 to 42 are plan views showing the main gear train in each operation state of the main part of the camera. FIG. 39 shows the state when the zooming operation is possible.
FIG. 40 shows a state when the film winding operation is possible,
FIG. 41 shows a state where the film rewinding operation is possible,
FIG. 42 shows states when the photographing screen size switching operation is possible.

In this camera, as shown in FIG. 38, a main body drive motor 201 is provided in a spool 217 as is known. In FIG. 37, the main body drive motor 201 and the spool 217 are shown separately for explanation. The main body drive motor 201 has a CW direction and a CC
Rotation in the W direction is possible. Sun gear 202
Is attached to the main body drive motor 201 so as to coincide with the rotation center thereof.
It is supported so as to always mesh with the sun gear 202. The carrier 204 is provided with the main body drive motor 2.
It is arranged at a position where the center of rotation coincides with the center of rotation, and supports the planetary gear 203 with a frictional force.

The stopper 205 is a fixing member for regulating the rotation angle of the carrier 204. The switching plunger 206 is composed of the coil 206a and the plunger
The rotation of the carrier 204 is restricted by an actuator composed of a plunger 6b and a plunger spring 206c.

The coil 206a is normally not energized, and the plunger core 206b is urged by the plunger spring 206c so as to protrude, and holds the carrier 204 between itself and the stopper 205. .
On the other hand, when the coil 206a is energized, the plunger iron core 206b is attracted to the coil 206a, the holding state of the carrier 204 is released, and the carrier 204 is moved within the range regulated by the stopper 205.
It becomes rotatable by the driving force of 01.

When the power supply to the coil 206a is stopped when the carrier 204 has rotated to the vicinity of the rotation limit by the stopper 205, the plunger iron core 206b projects by the urging force of the plunger spring 206c, and the carrier 20
4 between the carrier 2 and the stopper 205 again.
04 rotation is regulated.

By the operation described above, the planetary gear 20
Reference numeral 3 selectively meshes with one of a first zoom gear 209 and a hoisting sun gear 208 which will be described later.

The carrier photo-interrupter 207 (hereinafter referred to as carrier PI 207)
4 is a photo-interrupter for detecting the position, and the winding sun gear 208 meshes with the planetary gear 203 when the main body drive motor 201 rotates in the CW direction and the carrier 204 rotates. ing.

The first zoom gear 209 engages with the planetary gear 203 when the main body drive motor 201 rotates in the CCW direction and the carrier 204 rotates. Also, the second zoom gear 210,
The third zoom gear 225, the fourth zoom gear 226, and the fifth zoom gear 227 are connected to the first zoom gear 209.
It is designed to rotate following the rotation of. The second
Zoom gear 210 and third zoom gear 225
Is constituted by a two-stage spur gear, and the fourth zoom gear 226 and the fifth zoom gear 227 are constituted by two-stage gears, one of which is a bevel gear, and changes the rotation direction. The other gear of the fifth zoom gear 227 is a spur gear, which meshes with a gear 51 a of the rotating frame 51 to rotate the rotating frame 51.

Zoom photo interrupter idle gear (hereinafter abbreviated as zoom PI idle gear) 211
Is a gear driven by the fourth zoom gear 226, and a zoom photo interrupter gear (hereinafter abbreviated as a zoom PI gear) 212 is driven by the zoom PI idle gear 211. A slit portion 212a is formed.

The zoom photo interrupter 213 (hereinafter, referred to as the zoom photo interrupter 213)
The zoom PI 213) reads a pulse signal by the rotation of the slit 212a of the zoom PI gear 212, and detects the rotation amount of the rotating frame 51.

The check member 214 is urged toward the first zoom gear 209 by a check spring 232, which is a compression spring, and has a claw 214a tapered toward its tip at its tip. ing. The check member 21
4 is a case where the planetary gear 203 is wound up and the sun gear 20 is wound.
8, the claw 214a is cut between the teeth of the first zoom gear 209, thereby preventing the rotating frame 51 from being accidentally rotated by an external force. . When the planetary gear 203 meshes with the first zoom gear 209, the carrier 204
Of the first zoom gear 2
09, the rotating frame 51 can freely rotate.

The hoisting planet gear 215 is connected and supported by a hoisting carrier 216 so as to always mesh with the hoisting sun gear 208. That is, the hoisting carrier 216 is disposed so that the center of rotation thereof coincides with that of the hoisting sun gear 208, and supports the hoisting planetary gear 215 with a frictional force.

As described above, the main body drive motor 201 is disposed inside the spool 217, and a gear 217a is formed on the lower outer peripheral surface. When the main body drive motor 201 is rotated in the CW direction, the winding carrier 216 is rotated toward the spool 217,
The hoisting planet gear 215 and the spool 217 mesh with each other and rotate. Further, on the upper outer peripheral surface of the spool 217, a claw 217b for engaging with a perforation hole of the film is formed so as to protrude therefrom.
The film is wound by rotating the film.

[0177] The locking lever 218 is swingable between the two ends so that one arm 218a is engaged with the plunger iron core 206b of the switching plunger 206 and the other arm 218b is locked with the carrier 204. When the plunger iron core 206b is attracted to the coil 206a, the carrier 204 is unlocked.

The panoramic sun gear 219 meshes with the hoisting planetary gear 215 when the main body drive motor 201 rotates in the CCW direction while the planetary gear 203 meshes with the hoisting sun gear 208. . The panoramic planetary gear 220 is supported so as to always mesh with the panoramic sun gear 219. The panoramic carrier 221 is disposed at a position where the rotational center coincides with the panoramic sun gear 219, supports the panoramic planetary gear 220 with frictional force, and serves as a rotational center of the panoramic planetary gear 220. Further, a shaft 221a extending below the panoramic planetary gear 220 is formed.

The cam gear 222 is a gear for switching the photographing screen size. When the planetary gear 203 is engaged with the hoisting sun gear 208, when the main body drive motor 201 is rotated in the CCW direction, the hoisting is performed. The carrier 216 has the panoramic sun gear 219
The hoisting planet gear 215 meshes with the panoramic sun gear 219 to rotate it. In addition, the panorama carrier 221 is rotated by the rotation of the panorama sun gear 219, so that the cam gear 22 is rotated.
Rotating to the second side, the panoramic planetary gear 220 and the cam gear 222 mesh with each other and rotate.

Further, a second cam 222b for operating a screen size detection switch 245 for detecting the state of the two light shielding masks 242 and 243 is formed above the cam gear 222. Further above, a first cam 222a for moving the two light-shielding masks 242, 243 is formed.

The switching lever 223 is provided at one end of the arm thereof with the panorama planet gear 220 of the panorama carrier 221.
A groove 223a that engages with a shaft 221a that supports the switch lever 223 is formed, and a projection 223b is vertically provided at the other arm end of the switching lever 223. The projections 223b are provided on the rotating frame 5 with respect to the cams 51d formed on the rotating frame 51.
The first rotation makes contact.

The switching lever 223 is rotatably supported by a middle support shaft. The switching lever 223 is rotated by the rotation of the cam 51d of the rotary frame 51 at the other arm end, and is engaged with one arm end. The panorama carrier 221 thus rotated is rotated. As a result, the panorama planet gear 220
Are engaged with the first rewind gear 224.

On the other hand, when the cam 51d of the rotary frame 51 and the projection 223b are located at a distance from each other, the switching lever 223 is driven by the panorama carrier 221.

The first rewind gear 224 and the second
Rewind gear 228, third rewind gear 229, fourth rewind gear 230, fifth rewind gear 231
Are driven by the rotation of the panorama planetary gear 220, respectively. The first rewind gear 2
Reference numeral 24 denotes a two-stage spur gear, and a fifth rewind gear 23.
Reference numeral 1 denotes an unillustrated spool which is disposed in a patrone in a state in which the center of rotation coincides with the center of rotation. The unillustrated fork 1 is provided for rotating the unillustrated spool shaft to rewind the film. .

FIGS. 43 to 53 are explanatory diagrams showing the panorama switching mechanism of the present embodiment.

FIG. 43 is a perspective view showing the entire panorama switching mechanism, and FIGS. 44 to 47 are plan views showing cam gears in the camera. FIG.
8 is a main part front view showing a panorama switching mechanism in a state where a wide shooting screen size is selected in the camera, and FIG. 49 is a main part showing a panorama switching mechanism in a state where a narrow shooting screen size is selected in the camera. It is a front view. Further, FIG. 50 is a side view of a main part showing a panorama switching mechanism in a state where a wide shooting screen size in the camera is selected, and FIG. 51 is a perspective view showing a panorama switching mechanism in a state where a narrow shooting screen size in the camera is selected. It is a principal part side view shown. FIG. 52
FIG. 53 is a side view of a main part viewed from a direction opposite to FIG. 50, showing a panorama switching mechanism in a state in which a wide photographing screen size of the camera is selected. FIG. FIG. 52 is a main part side view showing the panorama switching mechanism in a state where the panorama switching mechanism is viewed from a direction opposite to FIG. 51.

As shown in FIG. 43, the first panoramic gear 240 is supported on a ground plate (not shown) at a swing center 240d so as to be vertically swingable in the figure. A cam gear 222 is provided below the first panoramic gear 240.
An arm 240a, which is a cam follower contacting the first cam 222a, is formed, and the rotation of the cam gear 222 causes the first panoramic gear 240 to swing about the swing center 240d as a fulcrum. ing. The first
The tip of one arm of the panoramic gear 240 is a partial gear 240
b, and a partial gear 240c is formed at the tip of the other arm, respectively.
2, meshes with the second panoramic gear 241.

The second panoramic gear 241 is similar to the one shown in FIG.
As shown in FIG. 7, a pivotal center 241d is supported on a main plate (not shown) so as to be pivotable in the vertical direction in the figure, and a partial gear 241a is formed at the tip of one arm. Meshes with the gear 240b,
The first panoramic gear 240 swings in cooperation with the rotation. A partial gear 241 b is formed at the tip of the other arm, and meshes with the upper light-shielding mask 243.

The lower light-shielding mask 242 and the upper light-shielding mask 243 are both supported at their base ends by a fixed shaft 239 (not shown) so as to be vertically movable in FIG. The fixed shaft 239 is supported by a main plate (not shown). The lower light-shielding mask 242 is movable in the axial direction of the fixed shaft 239, and the light-shielding portion 242 a enters or retracts into the photographing aperture opening 4 c of the main body 4 by the movement. The lower light-shielding mask 242 is moved in accordance with the swing of the first panoramic gear 240 meshing with the gear 242b formed on one side surface of the base end.

The upper light-shielding mask 243 is supported together with the lower light-shielding mask 242 so as to be movable in the axial direction by a fixed shaft 239 (not shown). The upper light shielding mask 243
The light-shielding portion 243a moves into or out of the photographing opening 4c of the main body by the movement of. The movement of the upper light-shielding mask 243 is performed by the swing of the second panoramic gear 241 meshing with the gear 243b formed on one side surface of the base end. A gear portion 243c is formed to protrude from the upper surface of the base end portion of the upper light-shielding mask 243, and meshes with a panorama switching gear 171 that transmits power to a finder portion.

The upper and lower light shielding masks 242,
A panoramic spring 244, which is an elastic member that elastically couples the light-shielding mask, is provided between base ends of the light-shielding mask 243. In the present embodiment, the panoramic spring 244 urges the light-shielding masks 242 and 243 in a direction to approach each other, and the arm portion 24 of the first panoramic gear 240.
0a, a contact force to the cam gear 222 is generated.

The screen size detection switch 245 is fixed to a base plate (not shown),
Of the cam 222b. The rotation of the cam gear 222 causes the screen size detection switch 245 to rotate.
(Hereinafter, abbreviated as PN detection SW 245) is turned on / off.

The date holder 246 is fixed to the upper light shielding mask 243, and includes a date lens 248 and a light emitting LED.
The upper light-shielding mask 243 is integrally supported by the upper light-shielding mask 243. Further, light-shielding projections 246a and 246b are provided at the rear end thereof. When shooting with a larger screen size (standard screen size), the hole 4e of the main body is shielded by 246b when shooting, and exposure of the film with harmful light is performed. Is to be prevented. on the other hand,
At the time of photographing with a smaller screen size (panoramic screen size), 4d is shielded from light by 246a, and similarly, exposure of the film due to harmful light is prevented.

The light emitting LED 247 is supported by the date holder 246, and is a light emitting element for imprinting data on a film. The date lens 248 is supported by the date holder 246, and is a lens for forming an image of the light emitted by the light emitting LED 247 on a film. Further, a film photo reflector 249 (hereinafter abbreviated as film PR 249) is provided at a position facing the perforation hole of the film, reads the movement of the perforation hole, and generates and outputs a pulse signal. I have.

The main body 4 has a photographing opening 4c for exposing the film 13; a hole 4d for imprinting a date when the screen size is in a standard state; Sometimes has a hole 4e for imprinting a date.

According to the present embodiment, one operation of the zooming operation, the film winding operation, the film rewinding operation, and the photographing screen size switching operation can be performed by one motor. The operation will be described below.

First, the zooming operation will be described with reference to FIG.

FIG. 39 is a plan view showing the main gear train when the zooming operation is possible. As shown in FIG. 39, zooming is possible when the planetary gear 203 is engaged with the first zoom gear 209. At this time, when the main body drive motor 201 is energized and rotated, the first zoom gear 209 to the fifth zoom gear 227 rotate, and the rotation frame 51 is rotated and the zoom PI gear 212 is rotated. Detect the amount of rotation. As shown in FIG. 37, a zoom encoder pattern sheet 76 is attached to the rotating frame 51,
A zoom photo reflector 139 is provided at a position opposite to this.
(Hereinafter abbreviated as zoom PR 139). Thus, the reference rotation position of the rotation frame 51 is detected, and a fine rotation amount is detected based on the output from the zoom PI 213.

When the main body drive motor 201 rotates in the CW direction, the lens is extended from the retracted state to the wide angle state and zooms to the telephoto side, and when rotated in the CCW direction, zooms to the wide angle side. The collapsing operation of the lens frame is performed in the final area. The zoom encoder pattern sheet 76 is provided so that the output of the zoom PR 139 changes as follows. In other words, the level from the collapsed area to the position just before the wide end is the "L" level, the level from the wide end position to the position just before the tele end is "H" level, and the tele end is the "L" level.

Next, the film winding operation will be described with reference to FIG.

FIG. 40 is a plan view showing the main gear train when the film winding operation is possible. This FIG.
As shown in (1), when the planetary gear 203 is engaged with the hoisting sun gear 208, winding can be performed. At this time, when the main body drive motor 201 is energized and rotated in the CW direction, the winding planet gear 215
7 and the spool 217 is rotated. The moving amount of the film 13 wound by the spool 217 is detected by the film PR249.

Next, the film rewinding operation will be described with reference to FIG.

FIG. 41 is a plan view showing the main gear train when the film rewinding operation is possible. This FIG.
As shown in the figure, the planetary gear 203 is engaged with the hoisting sun gear 208, and the panoramic carrier 221 is rotated toward the first rewind gear 224 by the rotation of the rotating frame 51, and the panoramic planetary gear 220 is rotated. When meshing with the first rewind gear 224, rewinding is possible. In the present embodiment, when retracted, the cam 51d of the rotating frame 51 rotates the projection 223b of the switching lever 223, and the rewinding is enabled. Therefore, when the lens barrel is not at the retracted position, rewinding becomes impossible. Rewinding is performed when the main body drive motor 201 rotates in the CCW direction.

During the rewinding, the switching lever 223 is turned counterclockwise by the reaction force when the panorama planetary gear 220 and the first rewinding gear 224 mesh with each other. The end 51d 'of the cam 51d is a surface perpendicular to the optical axis so that the rotating frame 51 does not rotate.

Next, the photographing screen size switching operation will be described with reference to FIG.

FIG. 42 is a plan view showing the main gear train when the photographing screen size switching operation is possible. This figure 4
As shown in FIG. 2, when the planetary gear 203 is engaged with the hoisting sun gear 208 and the switching lever 223 is free with respect to the cam 51d of the rotating frame 51, the screen size can be switched. Therefore, when the lens frame is collapsed, the screen size cannot be switched.

When the screen size is to be changed when the planetary gear 203 is engaged with the first zoom gear 209, first, the planetary gear 20
3 needs to be meshed with the hoisting sun gear 208. For this purpose, first, the coil 206a is energized,
The carrier 204 is unlocked, and then the main body drive motor 201 is energized to rotate in the CW direction.
In this case, if the main body drive motor 201 is continuously energized, the rotation direction of the main body drive motor 201 for rotating the carrier and the rotation direction of the main body drive motor 201 for winding the film will be described. Are the same, there is a problem that the spool rotates and the film is wound up. For example, when zooming and screen size switching are performed alternately, the film is wound up little by little even though the photographer has not taken any picture.

In order to solve this problem, in the present embodiment, the carrier 204 is lifted by the sun gear 20.
When the carrier 204 is rotated to the side 8, the drive voltage of the main body drive motor 201 is lowered, and the control is performed so that the carrier 204 is rotated with a weak force that cannot wind the film. Further, in order to minimize the energizing time to the main body drive motor 201, a carrier PI 207 is provided as a photo interrupter for detecting the position of the carrier 204.

Further, the pulse output from the carrier PI 207 is changed immediately before the rotation of the carrier 204 toward the winding sun gear 208 is completed. The main body drive motor 20 is controlled by stopping the energization of the motor.
1 can minimize the energizing time. With this method, the present embodiment solves the problem of film winding when switching the screen size.

Now, when the main body drive motor 201 is CCW
When rotated in the direction, the panoramic planetary gear 220 meshes with the cam gear 222 to rotate the cam gear 222. Hereinafter, a procedure for switching the screen size by rotating the cam gear 222 will be described.

The screen size switching mechanism is configured as shown in FIG. 43. The rotation of the cam gear 222 causes the first panoramic gear 240 to rotate, and the lower light-shielding mask 242 and the upper light-shielding mask 243 move only at the center line. The screen size is switched by moving in parallel with the illustrated fixed shaft 239 (not shown) and repeatedly moving forward and backward with respect to the photographing opening 4c. Hereinafter, the relationship between the position of the cam gear 222 and the screen size will be described.

FIG. 44 is a plan view showing the positional relationship between the cam gear 222 and the arm 240a of the first panoramic gear 240 in the standard screen size in this embodiment. In the drawing, reference numeral 222c denotes a first cam 222a.
Indicates the range held at the standard screen size,
Reference numeral 22d denotes a range held in a panoramic screen size.

In the state shown in FIG. 44, both the upper light-shielding mask 242 and the lower light-shielding mask 243 are retracted outside the photographing opening 4c to maintain the screen size in the standard state. At this time, the screen size detection switch 2
Reference numeral 45 is held in the off state by the second cam 222b of the cam gear 222. Then, when the photographer operates an operation member (not shown) for photographing in a panoramic screen size, power supply to the main body drive motor 201 is started, and the cam gear 222 starts rotating.

FIG. 45 is a plan view showing the state at the moment when the arm 240a of the first panoramic gear 240 is turned toward the center of the cam gear 222.

At this time, the lower light-shielding mask 242 and the upper light-shielding mask 243 have both moved to the panorama screen size position, but the screen size detection switch 245 is still off.

FIG. 46 is a plan view showing a state where the cam gear 222 slightly rotates from the state shown in FIG.

At this time, the screen size detection switch 2
45 is turned on, and the screen size detection switch 24 is turned on.
Upon detecting the change in the state of No. 5, the power supply to the main body drive motor 201 is stopped, and the rotation of the cam gear 222 is stopped. Switching to the panoramic screen size is performed according to the procedure described above. In addition, by providing a time lag between the movement of the light-shielding mask and the change in the state of the screen size detection switch 245, the reliability of the switching of the light-shielding mask is guaranteed.

Also, the movement of the upper light-shielding mask 243 to the panoramic screen size position causes the eyepiece zoom lens frame 1
67 moves, the field mask 167a and the eyepiece zoom lens 15 provided integrally with the 167 in the finder optical path.
7, the viewfinder changes to a form similar or similar to the screen size of the narrower view field, and the observation magnification changes, so that the photographer can recognize that the photographing mode has changed.

As for the dimensional accuracy of the screen size in the above-described operation, the screen size in the direction of the fixed axis 139 is the lower light-shielding mask 242 and the upper light-shielding mask 243.
Obtained by applying For this reason, an error due to a variation in the outer shape of another component is not affected, and an accurate screen size can be obtained. Therefore, at this time, the first cam 222a of the cam gear 222 and the arm 2 of the first panoramic gear 240
40a is not in contact.

Regarding the displacement of the screen with respect to the center of the screen during the operation described above, if the mechanism of this embodiment is used, the first panoramic gear 240 and the second panoramic gear 241 are just mirrored with respect to the center of the screen. Since such a symmetrical movement is made, if the respective light shielding portions 242a and 243a of the lower light shielding mask 242 and the upper light shielding mask 243 are arranged symmetrically with respect to the center of the screen, these light shielding portions are positioned with respect to the center of the screen. Makes a symmetrical movement as if reflected in a mirror. Therefore, it is possible to obtain the center of the screen with high accuracy without using a structure for achieving center position accuracy.

Next, when the photographer operates an operation member (not shown) for switching to the standard screen size, the power supply to the main body drive motor 201 is started, and the cam gear 222 starts rotating.

FIG. 47 shows the first panoramic gear 240
Arm 240a of the first cam 2 of the cam gear 222
FIG. 9 is a plan view showing a state where the cam gear 222 is turned in a direction away from the center of the cam gear 222 by 22a.

At this time, the lower light-shielding mask 242 and the upper light-shielding mask 243 have moved to the standard screen size position, but the screen size detection switch 245 is still on. When the cam gear 222 rotates slightly from this state, the screen size detection switch 245 changes to the off state while the respective masks remain at the standard screen size position. When this state change is detected, the main drive motor 201 is energized. The rotation of the cam gear 222 is stopped. Accordingly, this returns to the state shown in FIG.

Switching to the standard screen size is executed according to the procedure described above. In addition, by providing a time lag between the movement of the light-shielding mask and the change in the state of the screen size detection switch 245, the reliability of the switching of the light-shielding mask is ensured.

Further, by moving the upper light-shielding mask 243 to the standard screen size, the eyepiece zoom lens frame 167 moves, and the visual field mask portion 1 that has entered the finder optical path.
67a, since the variable power lens 157 is retracted from the optical path,
This allows the photographer to recognize that the photographing mode has changed.

Next, the data imprinting apparatus will be described. In the present embodiment, data is imprinted while the film is being fed.

The light emitting LED 247 can emit one character data by one light emission, and emits light a plurality of times during film feeding to form character string data. The light emitted from the light-emitting LED 247 passes through the date lens 248 to form an image on a film, and prints data. The light emitting LED 247 and the date lens 248 are supported by a date holder 246, and the date holder 246 is fixed to the upper light shielding mask 243. For this reason, the date holder 246 is also moved by the movement of the upper light-shielding mask 243, so that the position where the data is imprinted is changed by switching the screen size, and the data is displayed on the photograph formed at the time of the panoramic screen size. Printed.

FIGS. 54 to 57 are explanatory diagrams showing the film feed amount detecting means in the present embodiment.

The body 4 has a patrone chamber 4a,
A spool chamber 4b is formed, and an exposure opening (aperture) 4c is formed between the cartridge chamber 4a and the spool chamber 4b. Also, holes 4d and 4e for imprinting data are formed, and data can be imprinted on the film through the holes.

[0230] The lens barrel unit 2 includes the taking lens 14
0 and is fixed to the main body 4. The taking lens 140 is a photographic lens that forms a subject image on the film 13, and is provided in the lens barrel unit 2. Further, the spool 217 is rotatably disposed at the center of the spool chamber 4b of the main body 4, and the film 1
3 is performed. Further, the patrone 12 is housed in the patrone chamber 4a of the main body 4, and a film 13 is wound inside. In the present embodiment, a 35 mm roll film is used as the film 13.

As shown in FIGS. 56 and 57, the roller 260 is formed of a cylindrical portion 260a which comes into contact with the film 13, and a polygonal column portion 260b having each surface formed by a uniform reflecting surface. In addition, a shaft (not shown) passes through the center,
60 is rotatably supported. The shaft (not shown) is fixed to the main body 4, and the roller 260
3 is driven to rotate.

The data imprint timing photoreflector 261 (hereinafter abbreviated as data PR261) is a polygonal column 260b formed by the reflection surface of the roller 260.
Is disposed at a position opposite to. And the roller 2
When the reflection surface of the polygonal column 260b and the data PR 261 are directed in parallel by the rotation of 60, the data PR
261 is reflected by the reflection surface and returns to the data PR 261 again. As a result, the data PR
An output pulse from the H.261 is generated.

[0233] The leaf spring 262 is fixed to the rear lid 25 and elastically abuts on the cylindrical portion 260a of the roller 260.
The pressure plate 263 is attached to the rear lid 25 via a pressure plate spring 264 to prevent the film 13 from floating and enhance the flatness of the film 13. Press plate spring 2
Reference numeral 64 denotes an urging means for elastically urging the pressure plate 263 toward the main body 4 and is attached to the rear lid 25.

The light-emitting LED 248 is a light-emitting element having 7 segments for imprinting data, and can express data of one character by one light emission, and is supported by the date holder 246. . Also,
The date lens 247 is a lens for forming a character on the film 13 by emitting light from the light emitting LED 248, and is also supported by the date holder 246.

The date holder 246 supports the light emitting LED 248 and the date lens 247 as described above, and is fixed to the upper light shielding mask 242.
Further, the center of the hole 4d or 4e of the main body 4 and the light emission L
The ED 248 and the date lens 247 are vertically moved to a position where the centers thereof are coaxial.

In FIG. 54, reference numeral 11 denotes a main capacitor for a strobe, and reference numeral 10 denotes two power supply batteries. The film PR249 is a film 13
The number of perforations passing by the output pulse signal of the photoreflector 249 is counted, and the film is fed one frame. Further, reference numeral 21 denotes a front cover serving as an exterior part of the camera, and reference numeral 24 denotes a rear cover, which supports the back cover 25 rotatably.

The back cover 25 has a hinge at one end, and is supported by the rear cover 24 about the hinge as a center of rotation, and can be opened and closed. The leaf spring 262 and the pressure leaf spring 264 are attached. The back cover shaft 26 is a shaft that rotatably supports the back cover 25 and the rear cover 24. Reference numeral 27 denotes a side cover serving as an exterior part of the camera.
Reference numerals 7 and 38 denote operation buttons, and reference numeral 40 denotes a finder window.

Next, the operation of the roller 260 will be described.

As shown in FIG. 54, the spool 217 is rotated by the rotation of the main body drive motor 201, and when the film 13 is wound, the roller 260 is rotated by the film 13. In order to improve the followability of the movement of the roller 260 and the film 13 during the rotation of the roller 260, it is necessary to increase the pressure contact force between the roller 260 and the film 13 to some extent. For this purpose, the leaf spring 262 elastically pressed against the roller 260 is attached to the back cover 25 as described above. This leaf spring 26
Since 2 is attached to the back cover 25, when the back cover 25 is opened, the pressure contact between the roller 260 and the leaf spring 262 is released. Here, when the patrone 12 is loaded and the back lid 25 is closed by aligning the leading end of the film 13 with an automatic loading index (not shown), the film 13 is sandwiched between the roller 260 and the leaf spring 262, and the elasticity of the leaf spring 262 is Roller 26 by force
Contacted with 0.

The position of the roller 260 in the film advancing direction is near the entrance of the spool chamber 4b of the main body 4, and is substantially parallel to the exposure opening 4c for the film 13 to be wound around the spool 217. To spool 217
By arranging the film 13 at a position that changes the direction, the force with which the film 13 contacts the roller 260 can be further increased.

In the present embodiment, the roller 2
The followability of the film 60 to the movement of the film 13 is improved.

Next, the arrangement position of the roller 260 in a direction perpendicular to the film advancing direction will be described.

In the present embodiment, the arrangement position of the film contact portion 260a of the roller 260 is considered. That is, the film contact portion 260a is
If the roller 260 is disposed at a position in contact with the photographing screen, the film may be damaged, and if the roller 260 is disposed in contact with the perforation hole, the followability of the roller 260 to the movement of the film 13 is deteriorated. In the present embodiment, the film contact portion 260a of the roller 260 is disposed at a position where it contacts the outer edge of the perforation hole of the film 13. FIG. 56 shows an example in which the roller 260 is disposed at an optimum position.

Now, a pulse signal is generated in the data PR 261 by the rotation of the roller 260, and the film feed amount can be calculated by counting the number of pulses. For example, if the diameter of the roller 260 is set to be equal to the winding amount of one frame of the film when the roller 260 rotates ten times and the polygonal column part 260b is a regular hexagonal column, the number of output pulses per frame is 10 (rotation) x 6 (prism) = 60 (pulse). On the other hand, in the film feed detection system in which the perforation in the film 13 is directly read by a known photo reflector, one frame of the film is 8 perforations, so that eight pulses are output. Therefore, it is possible to more finely detect the film feeding amount by using the roller.

[0245] In recent years, photographs in which the date and the like are imprinted on the prints of the photographs have become widespread. The bunching device can be realized with a simple configuration.

The data imprinting apparatus performs imprinting of the data during film feeding.
As shown in FIGS. 54 and 55, the light-emitting LED 248 and the date lens 247 are supported by the date holder 246, and the date holder 246 is positioned with respect to the main body 4. A hole 4 d for imprinting data is formed in the main body 4, and the light emitted by the light-emitting LED 248 passes through the date lens 247 so that the film 1 can be used.
3, and the data is imprinted.

The light emitting LED 248 can expose data of one character per light emission. Therefore, when printing data, the light emitting LED 248 is used when the film 13 is fed and passes over the hole 4d of the main body 4.
Are sequentially emitted the required number of times, and data is imprinted.

The feeding speed of the film 13 is not always constant due to a change in the amount of pull-out force from the patrone 12, a variation in mechanical accuracy of a winding gear train or a winding motor (not shown), abrasion, etc., and always changes little by little. doing. As a result, if the light emitting LED 248 is always lit at predetermined time intervals to perform data imprinting without detecting the feeding speed of the film 13, the character spacing of the character string imprinted on the film 13 is changed. Since the characters become wider or narrower or characters overlap, the feeding speed must be detected with high accuracy.

In this embodiment, the feeding speed is detected by measuring the interval of generation of the output pulse signal from the data PR261. Here, in the film feeding detection method for directly reading the known perforation hole, 1
Since the output is 8 pulses per frame, the resolution per frame is 8
Becomes On the other hand, if the roller described above is used, 6
Since a 0-pulse output signal is generated, the resolution per frame is 60, and the feed detection device using rollers can detect the feed speed more precisely, and can correctly align the character spacing when imprinting data. It is possible to control the light emission interval.

The polygonal column 260 of the roller 260
b need not be hexagonal as in the illustrated roller,
An arbitrary polygonal prism may be used in consideration of the character spacing and the like in imprinting data. Further, a column having a reflective surface and a non-reflective surface alternately painted, such as silver and black, may be used. In the present embodiment, since the data is used for the data imprinting function, the resolution is required to be fine, so the polygonal column 260b is a polygon having many sides.

FIGS. 58 and 59 show the difference in the character spacing depending on the density of the resolution.

FIG. 58 shows the case where the data PR
An example is shown in which one character is printed every time there is one output pulse signal from the H.261. FIG. 59 shows an example in which the resolution is coarse and four characters are printed every time there is one output pulse signal from the data PR261.

In the example shown in FIG. 58, when one output pulse signal from data PR261 is generated, data is transferred for one character. Even if the feeding speed of the film changes, the generation interval of the output pulse signal from the data PR 261 changes accordingly, so that the character interval of the data imprinted character string becomes constant.

In the example shown in FIG. 59, data PR2
Since the change in the feed speed between the two output pulse signals from the output pulse signal 61 cannot be detected, the control means performs control assuming that the feed speed is constant. As a result, the character spacing of the character string varies. Would. The smaller the number of characters to be imprinted for each output pulse signal from the data PR261, the smaller the variation in character spacing can be. The greater the number of characters to be imprinted, the greater the variation in character spacing.

In the present embodiment, the detection of the one-frame advance of the film is performed by the film P which detects the movement of the perforation.
The use of R249 does not cause a cumulative error in the film feed amount that increases as the number of shots increases, and the method of reading the rotation of the roller 260 with high resolution is used for imprinting the date. A stable camera can be realized.

Next, a modified example of the film feed amount detecting mechanism in the above embodiment will be described.

If the diameter of the roller 260 is manufactured with high precision, there is almost no error in feeding one frame of the film. Therefore, the data PR26 for detecting the rotation of the roller 260 is used.
The film may be advanced by one frame only by one. In this case, since the film PR249 can be eliminated, a smaller camera can be realized. Further, in the case of a camera without a data imprinting function, the polygon part 260b of the roller 260 may be a polygon having a small number of sides, since the resolution may be coarse.

Next, the finder unit in this embodiment will be described.

FIG. 60 is a perspective view showing the structure of the finder unit.

As shown in FIG. 60, a finder unit 5 is provided inside the camera behind the exterior panel 22 on the optical axis at a position above the rotating frame 51 which is a component of the lens barrel 2. Have been. In the finder unit 5, various units, for example, constituent members such as a photometric unit, an AF light emitting unit, an AF light receiving unit, a finder optical system, and a finder zooming driving mechanism are attached to a finder structural member 150 serving as a frame member.

The photometric section is provided at the rear of the optical axis of the photometric window 22a of the exterior panel 22, and is provided at a photometric hole 150f formed substantially at the center on the front side of the finder structure member 150; It comprises a photometric light receiving element 450 as a light receiving means attached to the rear of the shaft.

The AF light projecting section is provided behind the AF light projecting window 22c of the exterior panel 22 along the optical axis, and is fixed to the finder structure member 150.
76, and an AF projection LED (not shown) disposed behind the optical axis.

The AF light receiving section is provided from the rear of the AF light receiving window 22d of the exterior panel 22 along the optical axis, and is disposed between the AF light receiving lens 177 fixed to the finder structure member 150 and the rear of the optical axis. And a light receiving element for AF (not shown).

The finder optical system includes a finder objective lens group as described below.

The fixed objective lens 151 is provided on the exterior panel 22.
The finder entrance window 22d is provided behind the optical axis, and is positioned and fixed to the right end on the front side of the finder structural member 150.

The light beam incident from the fixed objective lens 151 is transmitted to the first variable power lens 15 disposed behind the optical axis.
2. The first variable power lens 152 has a shaft insertion portion 152c having an upper cam follower portion 152b, and a rotation stopper 15 from the lower portion.
2a is projected. Thereby, the first variable power lens 1
52 is supported by a finder objective lens sliding shaft 159 serving as a guide shaft by a shaft insertion portion 152c, and the rotation preventing portion 152a is engaged with a fitting groove 160a formed in the finder lens base plate 160 by fitting. It is slidable in the optical axis direction.

The light beam from the first variable power lens 152 is further incident on the second variable power lens 153. The second variable power lens 153 has a shaft insertion part 153c provided with a cam follower part 153b on the upper part, and has a rotation stopping part 153a protruding from the lower part. Thus, the second variable power lens 153 is supported by the finder objective lens sliding shaft 159 by the shaft insertion portion 153c, and the rotation stopping portion 153a is fitted in the fitting groove 160a formed in the finder lens base plate 160. The engagement enables sliding in the optical axis direction.

Further, the finder light beam is transmitted to a first prism 154 and a second prism 156 described later (see FIG. 61).
After that, the light enters the eyepiece variable power lens 157. The eyepiece zoom lens 157 is a lens for increasing the magnification of the finder visual field during panoramic shooting, and is configured to be movable as described later.

The light image having passed through the eyepiece variable power lens 157 enters the fixed eyepiece 158. The fixed eyepiece 158 has a mounting portion 158a protruding from below, and is positioned and fixed to the finder structural member 150 by being inserted into a fixed shaft 150f (see FIG. 66) described later.

The cam follower portion 152b of the first variable power lens 152 and the cam follower portion 153b of the second variable power lens 153 have biasing means mounting portions 152d and 1d, respectively.
53d are protruded, and the second urging means 166
By attaching the first variable power lens 152 and the second
The variable magnification lens 153 is urged in the pulling direction.
Thereby, each of the cam followers 152b, 15b
3b, the cam portion 161 of the cam member 161 as a cylindrical member.
a, 161b.

The finder zooming drive mechanism for performing zooming by driving such a finder optical system is configured as described below.

The rotating member 163 includes a gear portion 163a and a driving belt winding portion 163b coaxially connected to each other, and is rotatably supported by a rotating member shaft 164.
The gear portion 163a is connected to the rotating frame 5 of the lens barrel 2.
The rotation of the rotary frame 51 is transmitted to the cam member 161 by meshing with a gear portion 51a formed on the peripheral surface of the cam 1 so as to perform zooming of the finder.

The driving belt 162 transmits one rotation operation to the other by being taken up by one of the rotating member 163 and the cam member 161. 163b and the cam member 16
Both ends are fixed to one drive belt winding section 161c. The driving force of the driving belt 162 is obtained by rotating the rotating frame 51 in one direction and by the first urging means 165 in the other direction.
(See FIG. 61). At this time, the driving belt winding section 163b and the driving belt winding section 161
By changing the winding diameter of c, the reduction ratio can be arbitrarily set. The position of the driving belt 162 is regulated by the belt position regulating portion 150d of the finder structure member 150.

As described above, the portion surrounded by the driving belt 162, the rotary frame 51, and the finder lens group has the
By arranging the F light projecting unit and the like, the space can be effectively used, and the size of the camera body can be reduced.

The cam member 161 is connected to the finder structural member 1.
The cam member 50 is rotatably supported by a cam member shaft portion 150e with a spacer projecting forward from the right end portion (see FIG. 61). The cam member 161 is connected to the cam follower portion 152 of the first variable power lens 152 as described above.
b and the cam follower 153 of the second variable power lens 153
The cam belts 161a and 161b with which the driving belt 162 abuts are formed on the peripheral surface, and the peripheral surface at the front end is fixed to one end of the driving belt 162.
61c.

Thus, the rotating member 163 and the cam member 16
1 is connected by the drive belt 162, a finder optical system that can be linked to the operation of the lens frame 2 can be configured even if the finder optical system has a layout separated from the lens frame 2. it can. Further, since a photometric unit, an AF unit, and the like can be arranged between the rotating member 163 and the cam member 161, the degree of freedom of layout can be increased and the arrangement can be performed efficiently, so that the camera body can be downsized. be able to.

FIG. 61 is a perspective view showing the structure of a finder lens group, and FIG.
It is a perspective view which shows the mode that the prism was assembled.

The first prism 154, which is a fixed prism,
The luminous flux incident from the finder objective lens group is inverted about 180 ° in a U-shape in the horizontal direction, and is attached to the finder structural member 150.

The field mask 155 is a member showing a field frame of a screen size in a normal state. The field mask 155 is located on the image forming plane of the finder optical system and is sandwiched between the first prism 154 and the second prism 156. The position has been fixed.

The second prism 156 converts the light beam incident from the first prism 154 into a U-shape in the vertical direction by about 180 degrees.
゜ The position is fixed by the finder structural member 150 and the first prism 154.

A finder lens main plate 1 serving as a rotation restricting member
Reference numeral 60 denotes a plate-shaped member in which a fitting groove 160a parallel to the optical axis direction is engraved, and one end is held by the fixed objective lens 151 and the first prism 154, and the position is determined. As described above, the fitting groove 160a has the first
The rotation stopping portion 152a of the variable power lens 152 and the rotation stopping portion 153a of the second variable power lens 153 are engaged with each other to restrict the rotation of the both around the finder objective lens sliding shaft 159.

The first urging means 165 has fixed arms 1 at both ends.
A biasing member comprising, for example, a coil spring provided with a moving arm 65a and a moving arm 165b. The fixed arm 165a is fixed to the cam member shaft 150e of the finder structure member 150, and the moving arm 165b is connected to the cam member 161. Fixed. The first urging means 165 constantly urges the cam member 161 in the rotation direction shown by the arrow F, thereby driving the cam member 161 and preventing the driving belt 162 from slacking even in the stopped state. ing. FIG.
Is a plan view showing the objective lens group and the cam member in a tele (telephoto) state, and FIG. 64 is a plan view showing the objective lens group and the cam member in a wide (wide-angle) state.

As shown, the end face of the cam follower portion 152b of the first variable power lens 152 on the optical axis rear side is in contact with the cam portion 161a of the cam member 161 and the cam follower of the second variable power lens 153. The end face of the portion 153b on the optical axis front side is in contact with the cam portion 161b.

The rotation of the rotating frame 51 causes the rotating member 16 to rotate.
When the cam member 161 rotates via the driving belt 3 and the driving belt 162, the first zoom lens 152 and the second zoom lens 153 move along the cam portions 161a and 161b in the optical axis direction. At this time, the first variable power lens 1 is moved around the finder objective lens sliding shaft 159 by the engagement of the cam portions 161a, 161b and the cam followers 152b, 153b.
The rotation preventing portions 152a and 153a are engaged with the fitting grooves 160a of the finder lens base plate 160 so as to prevent the rotation of the zoom lens 52 and the second variable power lens 153, thereby restricting the rotation.

FIG. 65 is a sectional view showing a configuration for improving the positional accuracy of a finder optical system having a zoom function.

As shown in FIG. 65, both ends of the finder objective lens sliding shaft 159 are fixed to the fixed objective lens 151 on the front side of the optical axis and the finder structural member 150 on the rear side of the optical axis.
Supported by Finder lens main plate 160
The position is determined by holding one end of each by the fixed objective lens 151 and the first prism 154. The objective lens 151 and the first prism 154 are positioned and fixed to the finder structure member 150, respectively. Accordingly, the positional accuracy of the finder objective lens sliding shaft 159 and the fitting groove 160a of the finder lens base plate 160 with respect to the fixed objective lens 151, and the first prism 15
4 and fitting groove 16 of finder lens base plate 160
0a, the positional accuracy of the fixed objective lens 151 is improved.
And a first variable power lens 152 for the first prism 154
And the accuracy of the relative position of the second variable power lens 153 is improved.

In order to reduce the size of the finder optical system for zooming, the relative positional accuracy of each lens is strictly required. However, according to the configuration shown in FIG. 65, the fixed objective lens 151 and the first prism are used. Since it is possible to improve the accuracy of the relative position between the first variable power lens 152 and the second variable power lens 153 with respect to 154, the finder optical system can be reduced, and as a result, the camera can be reduced in size. . Further, since the finder optical system has a high accuracy, the optical axis does not shift, adverse effects such as aberrations are reduced, and a finder having high visibility can be obtained.

FIG. 66 is a perspective view showing the configuration of the finder section panorama switching when the camera is viewed from the rear side.

The fixed eyepiece 158 is positioned by the fixed shaft 150f of the finder structural member 150 and is fixed to the finder structural member 150. The subject image formed near the entrance surface of the second prism 156 is observed. It has become so. At this time, in the state shown in the figure,
The finder can be observed with a normal screen size and magnification.

[0290] The panorama switching shaft 168 is mounted on the finder structural member 150 in a direction orthogonal to the finder optical axis at both ends thereof.

The eyepiece zoom lens frame 167 is a member that holds the eyepiece zoom lens 157 and is integrally fixed with an elongated, substantially U-shaped viewfinder panoramic field mask 167a. , Are slidably held on the panorama switching shaft 168. The eyepiece zoom lens frame 167 is provided with a rotation stopper 16 protruding from one end surface thereof.
7b is engaged with a groove 150c formed substantially parallel to the panorama switching shaft 168 of the finder structural member 150, thereby restricting rotation around the panorama switching shaft 168.

The eyepiece zoom lens frame 167 is inserted into the panorama switching shaft 168 between the viewfinder structural member 150 and the panorama switching spring 169 in a compressed state. Is to be inserted into. In the inserted state, the screen is switched to a panorama-sized screen, and the finder magnification is increased, so that the finder is easy to see.

The eyepiece zoom lens 157 is a lens whose finder magnification is increased by being inserted in front of the eyepiece lens 158, and moves within the eyepiece zoom lens frame 167 in the moving direction of the eyepiece zoom lens frame 167. And is urged leftward in the figure by a lens urging spring 170. The lens urging spring 170 is inserted into a pin 167e protruding from the eyepiece variable power lens frame 167, and is configured not to buckle or the like.

FIGS. 67 and 68 are views showing the panorama switching operation of the finder, and FIG. 67 is a plan sectional view when the finder is in a panoramic state.

In the eyepiece variable power lens 157, the projecting contact portion 157a comes into contact with the projection 150b of the finder structure member 150 by the urging force of the lens urging spring 170, so that the position can be accurately determined. I have. As a result, the optical axis of the eyepiece variable power lens 157 is accurately matched with the optical axis of the finder optical system. Also, the eyepiece zoom lens 157 is
Two projections 157b are protruded from the lower surface, and these projections 157b are elongated in the direction perpendicular to the finder optical axis formed in the eyepiece zoom lens frame 167 by two elongated holes 167c.
, Respectively, restricts the position in the optical axis direction and enables sliding in the direction along the elongated hole 167c.

The eyepiece zoom lens frame 167 is moved by the panorama switching spring 169 as described above.
The lens urging spring 170 is urged in the insertion direction of the lens.
Since the spring force of the panorama switching spring 169 is set to be stronger than the spring force of the panorama switching spring 169, the eyepiece zoom lens frame 167 is not pushed back by the force of the lens urging spring 170. Thus, the insertion position of the eyepiece zoom lens frame 167 can be determined independently of the eyepiece zoom lens 157.

On the other hand, the finder panorama visual field mask 1
As described above, 67a does not require particularly precise positioning even when it is inserted from the lateral direction orthogonal to the finder optical axis, as described above, and may be inserted at the position shown by reference numeral 167a 'in FIG. This is because the mask for regulating the visual field in the short side direction at the time of panorama is also used as the mask on the short side of the visual field mask 155, and the finder panoramic visual field mask 167a provided in a U-shape masks the long side. This is because only the visual field on the side along the long side is restricted.

FIG. 68 is a plan sectional view when the finder is in a normal screen state.

From the panoramic shooting state shown in FIG.
When the panorama switching gear 171 (see FIG. 71) described later is driven to return the eyepiece side double-lens frame 167 to the state shown in FIG. When the screen size returns to the normal size, the eyepiece side magnification lens 157 also returns, and the finder magnification returns to the normal state.

FIG. 69 is a longitudinal sectional view when the finder is in a panoramic state.

[0301] Field mask 167a for viewfinder panorama
Is disposed near the rear side of the field mask 155 having a normal screen size and disposed in the vicinity of the front side of the first prism 154, as shown in FIG. It is inserted near the imaging plane of the lens.

The eyepiece zoom lens 157 is, as described above,
It is inserted between the fixed eyepiece 158 and the second prism 156, and the projecting projection 157b is engaged with the elongated hole 167c of the eyepiece variable magnification lens frame 167 to regulate the position in the finder optical axis direction. At the same time, it is free in the moving direction of the eyepiece zoom lens 157. FIG. 70 is a view showing the eyepiece variable power lens frame 167 shown in FIG. 68 from the direction of the arrow J and a sectional view of a field mask portion of the finder.

As described above, the field mask 155 of the normal screen is disposed near the incident surface of the second prism 156 facing the first prism 154, and this position is the image forming surface of the finder optical system. I have.

[0304] Field of view mask 167a for finder panorama
Is located at the position shown in FIG. 70 at the time of the normal screen, but moves to the position shown at reference numeral 167a 'in the panorama at the time of the panorama so as to cover the top and bottom of the field mask 155 of the normal screen. I have.

According to the configuration described with reference to FIGS. 66 to 72, the eyepiece zoom lens 157 can be accurately positioned independently regardless of the insertion position of the viewfinder panoramic field mask 167a. At the same time, the finder panoramic field mask 67a can bring the finder into a panoramic state without requiring particularly precise positioning.

By doing so, the finder observation magnification can be increased at the time of panoramic screen size photographing compared to the standard screen size photographing, so that the finder image can be easily observed and the sense of reality close to the enlargement at the time of printing can be obtained. Can be given.

[0307] Furthermore, in the panorama, the area outside the photographing screen is shielded from light on the viewfinder, so that it is possible to surely prevent the subject from being photographed by the light shielding mask on the screen.
In addition, since the finder can be changed in magnification and the field mask can be switched with the above simple configuration, the finder unit can be downsized, and as a result, the camera can be downsized.

FIGS. 71 and 72 are diagrams showing a normal state and a panoramic state of the photographing screen and the finder visual field mask portion.

As shown in FIG. 71, the camera 1 has a camera body 4 having a rectangular photographing screen opening 4c substantially at the center, a spool room 4b on the right side thereof, and a patrone room 4a on the left side. .

[0310] The camera body 4 includes an upper light-shielding mask 24.
3 and panorama switching mechanism 7 having lower light-shielding mask 242
(All are not shown.) The upper light-shielding mask 243 and the lower light-shielding mask 242 are moved up and down to regulate a photographing light beam passing through the photographing screen opening 4c as required, thereby making a normal light-shielding mask. It switches between screen size and panorama screen size. The upper light-shielding mask 243 and the lower light-shielding mask 242 are vertically guided by a shaft 239 and are connected to each other by urging means 244.

The camera body 4 further holds the finder structure member 150 of the finder unit 5 and also controls the movement of the mask on the photographing screen by the eyepiece zoom lens frame 167.
A panoramic switching gear 171 that is a two-stage gear that is transmitted to the camera is rotatably held.

The finder structural member 150 of the finder unit 5 holds the above-described eyepiece zoom lens 157 and also holds the eyepiece zoom lens frame 167 integrally fixed to the viewfinder panoramic field mask 167a. . Further, the eyepiece variable power lens frame 167 has a rack 167d which is a second rack, and meshes with the large diameter gear 171a of the panorama switching gear 171.

The upper light-shielding mask 243 includes a first rack 243c, which is engaged with the small-diameter gear 171b of the panorama switching gear 171, integrally formed in a space above the spool chamber 4b and the photographing screen opening 4c. The panorama switching gear 171 is rotated by the vertical movement of the upper light shielding mask 243. The vertical movement of the upper light-shielding mask 243 is operated by the panorama switching mechanism 7 although not shown in detail.

When the photographing screen switches from the normal state as shown in FIG. 71 to the panoramic state as shown in FIG. 72, the rack 243c moves downward, and
The small-diameter gear 171b of the panorama switching gear 171 meshing with 43c is rotated. Along with this,
The large-diameter gear 171a of the panorama switching gear 171 also rotates integrally, and the large-diameter gear 171a and the rack 171d are rotated.
The eyepiece variable-power lens frame 167 meshed with the moves in the direction (rightward in the drawing) orthogonal to the moving direction of the upper light-shielding mask 243.

When the eyepiece zoom lens frame 167 enters the panoramic state as described above, the finder panoramic field mask 167a is inserted in front of the finder field mask 155 in the normal state, and the upper and lower screens are displayed even when looking through the finder. The observation can be performed in a state where the range is shielded from light.

When returning from the panoramic state shown in FIG. 72 to the normal state shown in FIG. 71, the upper light-shielding mask 243 moves upward, and the rack 243c moves upward. Small-diameter gear 171b of panorama switching gear 171 meshing with rack 243c
Is rotated left in the figure. Along with this, the large-diameter gear 171a of the panorama switching gear 171 also rotates integrally, and the eyepiece zoom lens frame 167 meshed with the large-diameter gear 171a and the rack 167d moves leftward in the drawing. The state returns to the state shown in FIG.

According to the configuration described with reference to FIGS. 71 and 72, it is possible to switch the photographing screen size and the field mask of the viewfinder at the same time. Since the size of the photographing screen always matches the size of the viewfinder screen, there is no possibility that wrong photographing or photographing in which the subject is shaded by the light shielding mask of the photographing screen is not performed.

Further, as described above, the rack 243c is disposed in the space above the spool chamber 4b of the camera body 4 and the photographing screen opening 4c, and the rack 1 is located above the photographing screen opening 4c.
67d, and these are connected to the panorama switching gear 171.
And the viewfinder panorama mask 167a is moved in the direction orthogonal to the operation direction of the upper light-shielding mask 243 by the operation of moving the upper light-shielding mask 243 up and down, so that the arrangement inside the camera is efficiently performed. And a small camera.

In the above configuration, the rack 243c
Instead of disposing the rack 243 in the upper space between the patrone room 4a and the photographing screen opening 4c,
c may be provided, and the other parts may be configured in substantially the same manner.

FIG. 73 is a diagram showing the configuration of the photometric optical system.

In FIG. 73, the finder structural member 15
0 is the photometric light receiving element 4 as shown in FIG.
50 is pressed and held by an elastic arm 150g. An infrared light cut filter 173 for photometry is disposed in front of the light receiving element 450 for photometry on the optical axis side.
50 is configured to measure light rays close to visible light.

A light-measuring opening 150f through which light is incident is provided in front of the optical axis of the light-measuring light-receiving element 450. The light-measuring opening 150f allows the light from the side unnecessary for measuring the object to be measured. Light and the like are prevented from being incident. The finder structural member 150 is fixed to the camera body 4 as shown in FIG.

The exterior panel 22 is formed of a transparent member as described above, and is fixed to the front cover 21 by bonding or welding. The exterior panel 22 integrally has a lens portion 22f inside the camera at a portion corresponding to the front of the optical axis of the photometric light receiving element 450.

On the outside of the camera of the exterior panel 22,
A light-shielding paint film 22g is integrally fixed by in-mold molding. The paint film 22g is not provided on a portion corresponding to the lens effective portion of the lens portion 22f, and the internal transparent member is directly exposed to the outside, so that light for photometry enters without being blocked. Photometric window 22 that can be used
a.

The front cover 21 is also provided with an opening 21c at the position corresponding to the lens effective portion, and by using this opening 21c as a stop for the lens portion 22f, the aperture of the lens is determined. It has become.

As described above, by integrally providing the photometric lens on the exterior panel 22, it is possible to condense the light beam from the subject and perform photometry.

With the configuration shown in FIG. 73, photometry can be performed without separately providing a photometric lens as in the related art. As a result, the space from the exterior member to the photometric lens can be reduced. Since it can be omitted and the image forming distance from the photometric lens to the light receiving element can be directly secured from the inner surface of the exterior member, the size of the camera can be reduced.

Also, since the lens surface is provided inside the exterior member, the lens surface is not easily scratched. Further, since a light-shielding film is provided in a portion other than the vicinity of the lens portion, light unnecessary for photometry can be cut, and accurate photometry can be performed. Since the photometric lens is formed integrally with the exterior member, there is an advantage that the waterproof performance and the dustproof performance are high as compared with a case where the photometric lens is configured as a separate component like a conventional camera.

As described above, according to the embodiment of the present invention, photometry can be performed without separately providing a photometric lens unlike the related art. As a result, the space from the exterior member to the photometric lens can be reduced. Since it can be omitted and the image forming distance from the photometric lens to the light receiving element can be directly secured from the inner surface of the exterior member, the camera can be significantly reduced in size.

Further, as compared with a camera that is miniaturized by directly measuring the light incident from the transparent window of the exterior member without providing a photometric lens, a photometric lens is provided integrally with the exterior member to obtain a subject image. By performing photometry while forming an image on the light receiving element, high-precision photometry is possible and multi-segment photometry is possible by dividing the light receiving element. As a result, appropriate exposure to the luminance distribution of the subject is achieved. The camera can be controlled.

Further, since the photometric lens is formed as an integral part of the exterior member, the waterproof and dustproof performance is improved as compared with the case where the exterior member and the photometric window are formed as separate parts as in a conventional camera. An excellent small camera can be obtained.

In addition, since the photometric lens surface is provided inside the exterior member, the lens surface is not easily scratched. Since a light-shielding film is provided around the photometric lens unit, light unnecessary for photometry can be cut off, and accurate photometry can be performed. Since the number of parts is small with a simple configuration, an inexpensive camera can be provided.

Next, the mounting state of the electric component according to the present embodiment will be described.

FIGS. 74 and 75 are perspective views showing the mounted state of the electric component in the embodiment of the present invention.

[0335] In the figure, reference numerals 2, 4, 5, and 7 indicate the above-described lens frame unit, camera body, finder unit, and panorama switching mechanism, respectively.

In the camera of this embodiment, as shown in FIG. 74, a main board 301 which is a hard printed board made of a glass-containing epoxy resin or the like, on which various electric components are mounted, is disposed inside the main body 4. Has been established.

FIG. 77 is a top view showing the main substrate 301 in detail.

A straight terminal electrode portion 301a is provided on one side edge of the upper surface of the main substrate 301, and the back surface of the terminal electrode portion 302a provided on the front end portion of a lens frame flexible substrate 302 described later. Connected to the side. A straight terminal electrode portion 301b is provided on the other side edge of the upper surface of the main substrate 301, and is connected to the back surface of the terminal electrode portion 303a of the main body driving flexible substrate 303 described later.

Further, on the upper surface of the main substrate 301, near the inner side of the straight terminal electrode portions 301a and 301b, straight terminal electrode portions 301e are provided, respectively. A display circuit (LC) which is an external display LCD of the camera via 309 and 310
D) 404.

FIG. 78 is a top perspective view showing the main substrate 301 seen from above.

As shown in the figure, on the back side of the straight terminal electrode portion 301a on the main substrate 301,
A similar straight terminal electrode portion 301c is provided, and is connected to a terminal electrode portion 304a of a date flexible substrate 304 described later. Further, a similar straight terminal electrode portion 301d is disposed on the back side of the straight terminal electrode portion 301b on the main substrate 301, and is connected to a terminal electrode portion 305a of an AF flexible substrate 305 described later. .

In the figure, reference numerals 401 and 402 denote a camera control IC (CPU) and an interface I, respectively.
C (I / F-IC), which is mounted on the lower surface of the main board 301.

Returning to FIG. 77, a cutout hole 301g for escaping the lead wire 30a (see FIG. 74) from the release button 30 is formed at one end of the main board 301. In the vicinity of the notch 301g,
Projection 4w suspended from cradle 4h at the time of substrate connection
(See FIG. 75).
Further, the straight terminal electrode portions 301a, 301b
In the vicinity of both ends, there are formed perforations 301i, 301j into which guide pins 4i, 4j (see FIG. 75), which are vertically provided on the receiving bases 4f, 4g when connecting the substrates, respectively. Further, a screw escape hole 301k is formed at a position corresponding to the fastening screw hole 4k (see FIG. 75) arranged near the guide pins 4i and 4j.

On the other hand, on the main board 301, a shooting mode button 32, a flash mode button 33, a self-timer / remote control button 34, and a panorama button 35 (FIG. 74)
Signal reception patterns 301m, 301n, 3
01p and 301q are provided. A terminal electrode portion 301r connected to a terminal electrode portion 319a of an AF light projection flexible substrate 319, which will be described later, by solder is provided at a side edge near the pattern 301q. Further, at one end of the main substrate 301, a circumferentially arranged terminal electrode portion 301s connected to a terminal electrode portion 306b of a DX flexible substrate 306 described later is provided on the back surface.

Further, at the other end of the main substrate 301,
A driver drive circuit 405 including driver elements for driving each actuator and the light emitting element 423 for distance measurement is provided. The driver driving circuit 405 easily generates heat because a high current flows when driving each actuator and the distance measuring light emitting element 423. In addition, since switching is frequently performed when each actuator is started, stopped, or reversed, and when the light emitting element 423 for distance measurement emits light or is turned off, electric noise is likely to be generated.

As a result, the CPU 401, I / F-
IC 402, display circuit (LCD) 404, PSD 420
, The connection between the AF flexible printed board 305 and the main board 301 on which is mounted, and the connection between signal lines on other boards, etc., may cause malfunction due to the heat generation and noise. In order to prevent this, the driver drive circuit 405 is mounted in a concentrated manner at a predetermined distance from the above-mentioned elements and the connection unit.

The connection portion between the AF projection flexible board (IR-FPC) 319 on which the distance measuring light emitting element 423 is mounted and the main board 301 is connected to the CPU 401 or the I / F-I
It is arranged on the terminal electrode portion 301r remote from C402 and the like. Further, the main body drive motor 201 and the switching plunger 2
A lead wire for supplying power to the main circuit board 06 is connected to the main board 301 by soldering or the like near the driver drive circuit 405 (not shown). As a result, it is possible to ensure reliability without malfunction even in a severe use environment or continuous use.

Returning to FIG. 74, two positioning holes 301f are formed in the middle of the main substrate 301, and an illumination device 454 for displaying an LCD is mounted on the upper surface of the positioning holes 301f. Has been established. A positioning boss 331b projects downward from the lower surface of the lighting device 454 (see FIG. 79), and fits into the positioning hole 301f to position the lighting device 454.

The above-mentioned mirror frame flexible substrate (mirror frame FPC)
Reference numeral 302 denotes a flexible printed circuit board that transmits signals from an internal shutter and an auto-focus driving mechanism, and extends from the lens frame unit 2 as shown in FIG. Further, a terminal electrode portion connected to the straight terminal electrode portion 301a is provided on the back surface of the tip portion.

The main body driving flexible board (main body FP)
C) 303 is a flexible printed board that transmits signals from a film and a zoom drive mechanism (not shown), and its base is disposed on the bottom surface of the main body 4 in the left-right direction. Further, a part of the substrate extends upward on the front surface of the main body 4, and a terminal electrode portion connected to the straight terminal electrode portion 301b is provided on the rear surface of the extended end portion. ing.

As shown in FIG. 75, the date flexible board (date FPC) 304 is a flexible printed board mounted on the date character light projecting section 7a which is displaced in conjunction with the screen size switching in the panorama switching mechanism 7. A terminal electrode 304a connected to the straight terminal electrode 301c is provided at one end.

The AF flexible substrate (AF-FP)
C) 305 is a flexible printed circuit board on which an AF light receiving PSD 420 and a photometric light receiving element 450 are mounted;
A terminal electrode portion 305a connected to the straight terminal electrode portion 301d is formed in the middle. Also,
An installation portion 305b, on which signal receiving patterns from the power button 36, the date mode button 37, and the date set / illumination button 38 are provided, is formed to be curved backward from the terminal electrode portion 305a.

The DX flexible substrate (DX-FP)
C) 306 is a flexible printed circuit board that transmits a DX signal and a signal from a strobe unit (not shown), and is disposed vertically on one side of the main body 4. One end of this DX flexible board 306 is DX
A terminal electrode portion 306a connected to the contact piece 320 is formed, and a release switch unit 318 in which release switches 428 and 429 described later are provided is mounted on the upper flat portion. In the figure, reference numeral 32
Reference numeral 1 denotes a DX contact piece holding frame that holds the DX contact piece 320 and the terminal electrode portion 306a and is attached to the main body 4.

In addition, the release switch unit 318
A terminal electrode portion 306b connected to the terminal electrode portion 301s is formed in the vicinity of the mounting portion, and a terminal electrode portion 306c is formed at the tip.

The above-mentioned AF light projection flexible substrate (IR-F
PC) 319 includes a light emitting element 423 for distance measurement and the main substrate 301.
And a terminal electrode portion 319a thereof is connected to the terminal electrode portion 301r by soldering.

Elastic members 316 and 317 are provided above the receiving bases 4f and 4g, respectively. When the main board 301 is mounted on the main body 4, the main board 30
1 and the main body 4.

The above-described display circuit (LCD) 404 is provided above the lighting device 454.
Reference numeral 404 denotes an arrangement connected to the main substrate 301 via anisotropic conductive rubbers 309 and 310 (see FIG. 76).
The LCD 404 is covered and held by the LCD holding frame 308 together with the anisotropic conductive rubbers 309 and 310. The illumination device 454 is also provided in the LCD holding frame 308, and the LCD 404 is illuminated from the back by the illumination device 454.

FIG. 76 is a cross-sectional view of a connection portion when the main substrate 301 and each flexible printed circuit board are tightened by a fastener.

As shown in the figure, the LCD holding frame 308
Projections 308a and 308b for pressing the holding frame 308 against the main substrate 301 are formed on both side edges of the main frame 301 (see FIG. 74). Pressing plates 314 and 315 are placed on the upper surfaces of the protrusions 308a and 308b, respectively, and elastic members 312 and 313 are interposed between the lower surfaces of the protrusions 308a and 308b and the main substrate 301, respectively. Have been. Then, from the upper portions of the holding plates 314 and 315 placed on the upper surfaces of the protruding portions 308a and 308b, the holding screws 322 are inserted into the holes of the holding plate, the elastic member, and the board by the fastening screws 322 of the main body 4. Fastened to the hole 4k. Thus, the LCD holding frame 308 is elastically pressed against the main substrate 301 and fixed. In FIG. 76, reference numeral 29 denotes a viewing window (LCD window) of an LCD display made of a transparent member.

In addition, the main substrate 301 has the LCD
A CPU for controlling the LCD drive and the like is provided on the back side of the 404.
The LCD 404 and the CPU 40 are provided.
One terminal electrode has a front and back relationship with each other. The terminal electrodes are connected to each other at the shortest distance via through holes. Therefore, it is not necessary to extend the pattern for a long time, and the mounting efficiency is increased, and the area of the main substrate 301 can be reduced.

Next, a method of connecting the electric components configured as described above will be described with reference to FIG.

First, the elastic member 316 and the terminal electrode portion 304a are guided by the guide pin 4i, and the elastic member 31 is guided by the guide pin 4j.
7 and the terminal electrode portion 305a,
The terminal electrode part 306b is attached by being guided by the guide. Thereafter, the main substrate 301 is covered from above, and the display units (LCD holding frame 308, LCD 404, anisotropic conductive rubber 309, 310, and lighting device 454) are further positioned by the positioning boss 331b (see FIG. 79).
The main board 301 is mounted so as to be fitted to the main board 301.

In this state, the guide pins 4i, 4j
Protrudes from the upper surface of the main substrate 301, and similarly, the terminal electrode portion 302a, the elastic member 312, and the pressing plate 31
4, the terminal electrode portion 303a, the elastic member 312, and the holding plate 315 are also guided and stacked, and four board fastening screws 3 are used.
Tighten with 22. Thereby, the terminal electrode portion 3
02a and terminal electrode portion 301a, terminal electrode portion 301c and terminal electrode portion 304a, terminal electrode portion 303a and terminal electrode portion 3
01b, the terminal electrode portion 301d and the terminal electrode portion 305a, and the terminal electrode portion 301e and the terminal electrode (not shown) of the LCD 404.

At this time, if the LCD holding frame 308 has sufficient strength, the protrusion 308a is used instead of the holding plate 314.
However, the protrusion 308b may also serve the role instead of the holding plate 315.

Next, the internal structure of the illumination device 454 will be described in detail with reference to FIGS.

FIG. 79 is a cross-sectional view of the lighting device 454 and its surroundings, and FIG.
It is the principal part enlarged view which showed the light-incidence part of the light-guide plate which injects light source light in 54.

As described above, the display circuit (LCD)
404, anisotropic conductive rubber 309, 310, lighting device 45
4 is integrated with the inside of the LCD holding frame 308 and is pressed by the holding plates 314 and 315 to be electrically connected to the main substrate 301.

The LCD 404 has a semi-transmissive reflecting plate attached to the back surface of the LCD 404, and normally reflects external light to display the image. To make it easier to see.

The main part of the illuminating device 454 is a light guide plate 330 made of a transparent material and a substantially white holding member 331 for integrally holding the light guide plate 330 and a light source 332 composed of a light emitting element such as an LED. Is configured. From the lower surface of the holding member 331, a positioning boss 331b is formed so as to protrude therefrom.
01f to position the lighting device 454. A lead terminal 332a extends from the light source 332, and is electrically connected to the main board 301 by solder or the like.

As shown in FIG. 80, the light incident surface 330a of the light guide plate 330 is a surface through which light from the light source 332 enters, and the irradiation surface 330b is an LCD surface.
404 is irradiated from the back, and the surface is rough and diffused (light ray L2). Further, the light guide surface 330c emits light from the light incident surface 330a to the irradiation surface 33.
0b (light L1), and the diffuse reflection surface 330d diffuses light reflected and transmitted on the rough surface (light L3).

On the other hand, the surface 331a in contact with the diffuse reflection surface 330d is a mirror surface, and when the light emitted from the light source 332 leaks from the diffuse reflection surface 330d, it is reflected and returns to the light guide plate 330 side. The light is returned.

In the lighting device 454, light from the light source 332 entering from the side surface of the light guide plate 330 diffuses inside the light guide plate 330 to become a surface light source, and illuminates the upper LCD 404. Further, the holding member 331 surrounds the bottom surface and the side surface of the light guide plate 330, whereby light is reflected inside and the efficiency of illumination is increased.

The light guide plate 330 has a sufficient thickness to allow all of the parallel light of the light source 332 to enter the light guide plate 330 on the light incident surface 330a. Also, the light guide surface 33
0c, the light is reflected and guided to the irradiation surface 330b.
30b is thinner than the light incident surface 330a, and the LCD 4
Since the lighting device is configured to be installed, the lighting device can be made thin without lowering the lighting efficiency.

Further, since the main substrate 301 is a hard printed circuit board and the switch input pattern is provided on the upper surface, a support member such as a main body for supporting the substrate when the switch is pressed on the rear surface is unnecessary. Therefore, when such a configuration is adopted, it is possible to mount an element requiring a large mounting area on the back surface of the main substrate. Thereby, a small camera can be provided.

Next, the electrical configuration of this embodiment will be described.

FIG. 81 is an electric circuit diagram showing the electric structure of the camera of this embodiment.

First, each operation member of the camera 1 (FIGS. 1 and 2)
81) and the switches shown in FIG. 81 will be described.

When the release button 30 is lightly pressed, the release switch (RS
W) 428 is turned ON. When the release button 30 is further pressed deeply, the release switch (2RSW) 42 in 318 is pressed.
9 turns ON.

When the zoom dial 31 is turned in the T direction, the zoom UP switch (ZUSW) is turned on. When the zoom dial 31 is turned in the W direction, the zoom DOWN switch (ZD
SW) 431 is turned ON.

When the photographing mode button 32, the flash mode button 33, and the self-timer / remote control button 34 are pressed, each button and 301m, 301n, 3
01p, a shooting mode switch (MOS
W) 414, flash mode switch (FLSW) 4
15. Self-timer / remote control switch (SESW)
416 are turned on.

When the panorama button 35 is pressed, a screen size switch (PNSW) formed between the panorama button 35 and the main board 301 q is turned on.

Power button 36, date mode button 3
7. When the date set / illumination button 38 is pressed, a power switch (PWSW) 413, a MODE switch 443, and a SET switch 444 formed between each button and the terminal electrode portion 305b of the AF-FPC 305 are turned on.

The CPU 401 has a release switch 428,
429, zoom UP switch 430 (hereinafter, ZUSW),
The CPU 40 uses switch input information such as a zoom DOWN switch 431 (hereinafter, ZDSW) and a switch 432 (hereinafter, PNSW) for performing a switching operation of a photographing screen size.
1 is a microcomputer that sequentially executes sequential control based on a program stored in a ROM provided therein and controls operations of peripheral ICs and the like.

Other switch information input to the CPU 401 include a SET switch 444 for correcting the date on which the photographer will be imprinted on the film, a MODE switch 443 for changing the imprint mode, and a shooting screen size, which will be described later. And a screen size detection switch 245 for controlling the switching operation.

[0385] The I / F-IC 402 includes a processing circuit for distance measurement, photometry, remote control reception, temperature measurement, strobe charging voltage detection, battery voltage detection, and the like, and an A / D conversion circuit.

In the distance measurement, a distance to a subject is measured by an active method using infrared rays. For light projection, the driver driving circuit is controlled by the I / F-IC 402, and the three light emitting elements 423 for distance measurement sequentially emit light. The current flowing through the light-emitting element is converted into a voltage by a resistor 421 and fed back to the I / F-IC 402 so that the light-emitting current is converted to the I / F-IC.
402 controls. The projected light reflects off the subject,
An image is formed on the triple PSD 420.

In the photometry, the received light is converted to a photometric light receiving element 45.
0 is obtained by converting the current and inputting it to the I / F-IC 302 as photometric information.

The remote control (remote control) converts the received light into a current at the light receiving element 451 for the remote control.
The / F-IC 402 determines whether remote control reception has been performed.

Each actuator is controlled by a command from the I / F-IC 402. Actuators include:
A focus motor 108 (hereinafter, referred to as an AF motor) for driving an autofocus lens, and a main body drive motor 20 for driving film feeding, zoom feeding, feeding, and the like.
1 (hereinafter referred to as WZ motor), a switching plunger 206 (hereinafter referred to as WZ plunger) for switching the drive system of the WZ motor, and a shutter plunger 111 for driving a shutter sector. A built-in control circuit for controlling and driving each actuator via a driver drive circuit 405, and output signals of detectors 109, 213, 249, and 110 for detecting the movement of driving force transmission mechanisms 410, 411, and 412 described later. It also has a built-in shaping circuit.

Here, the main function of each detector will be described.

The focus photo interrupter 109 (hereinafter referred to as focus PI) is used for automatic focus lens extension control and the like, and the zoom photo interrupter 213 (hereinafter referred to as zoom PI) is used for detecting focal length movement.
Further, a shutter trigger photoreflector 110 (hereinafter referred to as a shutter PR) is used for detecting a timing of opening a shutter sector. These outputs are wired-ORed and connected to the same terminal of the I / F-IC 402 via a signal line 437. The film moving distance is measured and one-frame winding control is performed.

A film photo reflector 249 (hereinafter, film PR) is connected to the I / F-IC 402. Zoom Photo Reflector 139 (hereinafter referred to as Zoom PR)
Is a detector for controlling the collapsible lens barrel and detecting the reference position of the focal length position.

Data imprint timing Photoreflector 261 (hereinafter referred to as data PR) is for detecting the position where the date data is imprinted on the film and the light emission timing of light emitting LED 248 for creating a character to be imprinted. A carrier photo interrupter 207 (hereinafter, carrier PI) is a detector for controlling a switching operation of the drive system of the WZ motor, and the zoom PR, data PR, and carrier PI are connected to the CPU 401, respectively.

A bus line 436 for transmitting and receiving signals is connected between the CPU 401 and the I / F-IC 402.
-The A / D converted result of the IC 402 is stored in C
The CPO signal line 435 to be transmitted to the PU 401 is connected.

The CPU 401 detects a distance measurement, a remote control, a battery voltage detection, a strobe charging voltage detection built in the I / F-IC 402 via a bus line 436,
Each function of each actuator drive circuit and the like can be selected, and control of starting and stopping of the AF motor 108 and the like can be performed.
The drive voltage can be set. In addition, for a detector of a photo-interrupter or a photo-reflector, etc., it is possible to select the drive of the detector and control the LED-side current value. An arbitrary determination level can be set for the output current on the phototransistor side, and the determination result can be output from the CPO 435 as a signal (pulse) whose waveform is shaped.

An EEPROM 425 is a non-volatile memory storing various parameters necessary for controlling the camera, and is required through a serial communication circuit including a serial clock line (SCLK) 442b and a serial data line (SDATA) 442c. The stored contents are read out by the CPU 401 in response.

[0397] The DT-CPU 426 has a clock and a calendar function, and operates in conjunction with the film feeding.
A microcomputer for controlling data imprinting for turning on 47 and imprinting data such as date on a film one character at a time. Then, a CPU is connected to the EEPROM 425 via serial communication circuits 442b and 442c which are common to the EEPROM 425.
EEP on serial communication line, controlled by 401
The distinction between the ROM 425 and the DT-CPU 426
01 to EEPROM 425 for each
DC signal for EN signal 442a and DT-CPU 426
This is performed by generating a chip enable signal such as an EN signal 442d.

In the flash charging light emitting circuit 403, the start / stop of charging is determined by the charge start signal (S
CHG) 434, and the emission control is also CP
It is controlled by a light emission control signal (STRG) 433 from U401. In addition, the charge voltage is monitored by the CPU 401 via the I / F-IC 402 by the charge voltage monitor signal (SCH) from the strobe charge light emission circuit 403.
GV) 452.

A display circuit (LCD) 404 is a circuit for displaying the mode and state of the camera, the number of films to be photographed, the switching state of the date imprint data screen size, and the like.
It is controlled by 401.

The CPU 401 switches the WZ motor 201 switching plunger 206 in accordance with the input of the switch.
, The planetary gear of the driving force transmission mechanism B411 is switched, the driven gear is driven, and the zoom, film feed, and screen size switching operations of the camera are controlled.

In the figure, reference numeral 111 denotes a shutter plunger for driving a shutter. The CPU 401 turns on and off the shutter plunger 111 by an I / F-IC.
The control is performed via 402. When the shutter plunger 111 is driven, the shutter opens. Then, at this time, the shutter PR110 is turned on in conjunction with the operation of the shutter. CPU 40
Reference numeral 1 denotes an on-state of the shutter PR110, which is used as a shutter opening timing, and starts a counting process for exposure time and light emission time.

When the counting of the light emission time is completed, the CPU 4
01 flashes the strobe Xe 453 via the STRG line 433. When the counting of the exposure time is completed, the CPU 401 shuts off the plunger 111, closes the shutter, and ends the exposure processing. I have.

Next, the release sequence will be described.

The release switch is set at 2 as shown in FIG.
(1st release: 1RSW428, 2nd release: 2RSW429). The release button 30 operated by the photographer has only one push switch (not shown), and the 1RSW and 2RSW are sequentially turned on according to the depth of the pressing stroke of the release button 30. In other words, the first stroke after the start of pressing
When RSW is turned on and pressed further, 2
RSW is turned on.

FIG. 82 shows the first release switch (1RSW) and the second release switch (2RS).
15 is a flowchart showing a release processing algorithm by the operation of W).

When the 1RSW is turned on, the CPU 401
Starts a calling process as a 1R process using the program shown in FIG. 82 as a subroutine.

First, in step S100, the CPU 401
Is a photometric light receiving element 450 via the I / F-IC 402,
The output of the PSD 420, which is an autofocus sensor, is taken in to measure the luminance of the subject (photometry) and to measure the distance to the subject (distance measurement).

In step S101, a battery voltage operable without any problem in performing the sequential control of the camera can be secured, but the determination is made in three stages. The three stages include a state in which the camera can operate without any problem as a function of the camera, a state in which the battery capacity is sufficiently accumulated, and a state in which the operation as a function of the camera does not cause any problem but the user is busy with the lock voltage level. This is a state (warning level) that informs the user that the battery replacement is required. Each state is displayed on the display circuit 404.

In step S 102, the charging voltage of the flash charging light emitting circuit 403 is measured via the I / F-IC 402. In step S103, calculation for exposure control is performed based on the photometry result in step S100. In this AE operation, it is also determined whether or not the strobe light is emitted. If it is determined that the strobe light is emitted, the strobe light is emitted based on the charging voltage of the strobe measured in step S102 and the distance measurement system that is the distance to the subject. Find the quantity. Thus, step S
In step 103, a shutter opening time necessary for exposure control, a strobe light emission determination, and a strobe light emission amount are obtained.

In step S104, the amount of extension of the auto-focus lens for extending the auto-focus lens (focusing), which will be described later, is determined based on the distance measurement result in step S100.

In step S105, 1RSW is confirmed.
If the switch has been turned off, the process returns to step S106 and ends.

If 1RSW is on, step S1
In step 07, it is determined whether the charging voltage of the strobe is at a level at which light emission is possible. This level depends on the circuit constant of the light emitting circuit portion of the flash charging and light emitting circuit. If the determination is NG, the flash is charged in step S108, and if the charging is completed, the process returns in step S109 to end the release process. At this time, no exposure is performed because the strobe is not charged.

If the charging voltage is at a level at which light emission is possible, the flow advances to step S110 to determine whether or not the distance measurement result is within a range in which a predetermined performance can be obtained as a photographing lens. Then, a warning is displayed to the photographer using warning display means (not shown), and the process returns to step S105. Even if it is determined in step S110 that the distance measurement result is OK, if the 2RSW is off in step S112, the process also returns to step S105.

If it is confirmed in step S112 that the 2RSW has been turned on, in step S113, the control of extending the autofocus lens in step S104 (details will be described later) is performed.

[0415] After the automatic focusing lens is extended, in step S114, the aperture of the shutter is controlled based on the result of the AE operation in step S103. After the end of the exposure control in step S114, a lens reset operation is performed to return the autofocus lens extended in step S115 to the original position.

[0416] In step S116, the driving force transmission mechanism 4
11 is selected so that the driving force of the WZ motor 201 is transmitted to the hoisting sun gear 208 by the switching plunger 206 and the WZ motor 201.

[0417] In step S117, the WZ motor 201
By transmitting the driving force to the selected winding sun gear 208, the operation of winding one frame of the film is performed, and at the same time, the data such as the date is imprinted. (The details will be described later.) After winding one frame of film, the operation mode of the camera is set to step S118. When the 2RSW is pressed in the continuous shooting mode and strobe light shooting is required, strobe charging is performed to the minimum charging voltage required for shooting. I do. And step S
After 118, the release process ends in step S120, and one frame of the photograph has been taken.

Next, the operation of the CPU 401 in the camera of this embodiment will be described with reference to the flowcharts of FIGS. Note that reference numerals “B”,
“C” and “D” correspond to reference signs “B”, “C”, and “D” in FIG. 84, respectively.

First, in step S201, the CPU 40
After 1 is reset when the power is turned on, an initialization operation is performed.
In step S202, the charging instruction signal SCHG434 is output to the strobe charging light emitting circuit 403 until the charging voltage reaches the predetermined charging voltage, and charging is performed. In step S203, three timers are set and counting of the timers is started.

One of the three timers is a display timer. This timer is initialized each time the photographer operates a switch of the camera. If the timer counter overflows without a switch operation for a predetermined time (for example, 30 seconds), the CPU 401 is set to a standby mode to reduce power consumption. The other timer is a 100 msec timer, which is periodically DT-C
Used as a synchronization signal for inputting date data from PU 426.

[0421] The third timer is a 10 second timer,
The operation time of the lighting device 454 that illuminates the display circuit 404 is limited.

In step S204, it is determined whether the display timer has overflown. If the display timer expires due to overflow, step S209
Move to. In this step S209, the communication mode A
Communication. In this case, the status data of the camera indicates that the CPU 401 enters the standby mode.

At step S210, all the displays are turned off to notify the photographer that the camera is in the standby mode. In step S211, after permitting the interrupt, the CPU 401 enters the standby mode, and the operation stops. The operation may be started by the photographer operating a switch to generate an interrupt signal. When the interrupt signal is generated, the standby mode is released, and the CPU 401 starts the operation from step S202 again.

If it is determined in step S204 that the display timer has not overflown, the process proceeds to step S20.
The process proceeds from Step 4 to Step S205. This step S205
Then, it is determined whether the 100 msec timer has overflowed. Here, when an overflow occurs, the process proceeds to step S206, and when not, the process proceeds to step S212 described later.

[0425] In step S206, communication in communication mode A is performed, and data necessary for date display is stored in the DT-CPU.
426 is input. Then, in step S207,
Display is performed on the display circuit 404 based on the input data. Further, a display corresponding to the operation mode of the camera is also displayed on the display circuit 404. Next, step S20
In step 8, the 100 msec timer is initialized to start counting.

Steps S205 to S20
8, the operation of the CPU 401 and the DT-CPU
In response to the operation of 426, the display of the display circuit 404 is updated.

[0427] In the next step S212, it is determined whether or not the 10-second timer has overflowed. If the overflow has occurred, the process proceeds to step S213 to stop the operation of the display lighting device in the display circuit 404,
Proceed to step S214. If the 10-second timer has not overflown, the flow goes directly to step S214.
Proceed to.

After the next step S214, the state of the setting switches 428 to 432, 444 (see FIG. 81) is input, and the camera operates according to the operation state of the switches. First, in step S214, it is determined whether or not the first release switch (1R switch) 428 has been pressed. If it has been pressed (ON), the flow advances to step S219 to perform release processing (photographing operation). This executes and executes the release processing program shown in FIG. 82 as a subroutine. Then, after a series of photographing operations is completed in step S219, the process returns to step S203.

In step S214, 1R switch 428
If the switch is off, the flow advances to step S215 to check the zoom UP switch (ZU switch) 430. Where Z
If the U switch 430 is ON, the process proceeds to step S220 to perform the zoom UP operation.
5 is called and executed as a subroutine. When the zoom UP process ends in step S220, the process returns to step S203.

When the zoom UP switch (ZU switch) 430 is off at step S215, step S21 is performed.
Proceed to 6 and zoom down switch (ZD switch) 4
31 is checked. Here, if the ZD switch 431 is on, a step S221 is performed to perform a zoom DOWN operation.
In step S221, the zoom down processing program shown in FIG. 87 is called and executed as a subroutine. When the zoom DOWN process ends in step S221, the process returns to step S203.

If the zoom down switch (ZD switch) 431 is off in step S216, the flow advances to step S217 to check the screen size changeover switch (PN switch) 432. Here, if the PN switch is on, step S2 is performed to perform a screen size switching operation.
The process advances to step S22, but step S222 calls and executes the screen size switching processing program shown in FIG. 89 as a subroutine. When the screen size switching process ends in step S222, the process returns to step S203.

At step S217, the PN switch 432
If is off, the process proceeds to step S218, where the light switch (SET switch) 444 is checked. Here, if the SET switch 444 is on, the process proceeds to step S22.
Proceed to 3 to activate the lighting device 454. Step S2
When 23 ends, the process returns to the step S203.

At step S218, the SET switch 44
If the switch 4 is off, the process proceeds to step S224, where the MO switch 414 is checked. Here the MO switch 41
If 4 is on, the flow advances to step S225 to perform a camera mode setting process. This processing is for setting various modes of the camera to arbitrary modes. When step S225 ends, the process returns to step S203.

[0434] In step S224, the MO switch 414
Is off, the flow advances to step S226 to check the FL switch 415. If the FL switch 415 is on, the flow advances to step S227 to perform a crash mode setting process. This processing is for setting various flash modes of the camera to arbitrary modes. Step S
When 227 ends, the process returns to step S203.

In step S226, FL switch 415
Is off, the flow advances to step S228 to check the SE switch 416. If the SE switch 416 is on, the flow advances to step S229 to perform a self / remote control mode setting process. This process is a process for setting the self mode and the remote control mode of the camera. When step S229 ends, the process returns to step S203.

1R switch 428, ZU switch 43
0, ZD switch 431, PN switch 432, SET
Switch 444, MO switch 414, FL switch 4
When both the SE switch 15 and the SE switch 416 are off, the process returns to step S204, and the above series of processing loops is repeated.

[0437] The operating time of the lighting device 454 is usually one.
The timer value (10 seconds) is changed in the blinking mode of the date display described later, which is limited by 0 seconds. This blinking mode is used when correcting the date and time data of the DT-CPU 426, and is operated while checking the date and time, so that the operation time of the display lighting device 454 is extended. It is more convenient.

[0438] Specifically, in the date display blinking mode,
The 10-second timer is changed to the 90-second timer in the timer setting in step S203. Accordingly, step S21
The timer second time for which the end is determined in step 2 is set to 90 seconds (step S212 '). When returning from the blinking mode to the blinking inhibition mode, the 90-second timer is switched to the 10-second timer.

FIG. 37 shows the mechanical drive system switching unit (film feed system, zoom drive system, mechanical switch) of this embodiment and the mechanical drive units (film feed, zoom drive, panorama switch) around it. FIG.

The operation of switching from W to Z (switching the mechanical drive system from the film feed system to the zoom drive system) will be described with reference to FIGS. 37 and 85.

First, in step S250, the switching plunger 206 is turned on, and the locking is released from the WZ carrier 204 'by attracting the iron core 206b.
04 'is turned. After the switching plunger 206 is turned on, the waiting time in step S251
This is the time required for the carrier 204 'to be able to rotate reliably. In step S252, the timer 1 is set.

This timer detects an abnormality in the W → Z switching operation. In step S254, the WZ motor 201 is rotated in the reverse direction, and the WZ carrier 204 'is moved in a direction in which the WZ planet gear 203' meshes with the first zoom gear 209. The planetary gear 203 is the first zoom gear 2
09, the motor continues to rotate in the reverse direction, the slit 212a of the zoom gear 212 rotates, and the zoom P
I213 outputs a pulse corresponding to the rotation.

In step S254, the zoom PI2
The pulse generated from 13 is counted, and the process proceeds to step S262 until there is a two-edge output. Step S262
Determines whether the timer 1 has overflown. If the timer 1 has not overflown, the flow returns to step S253 to continue monitoring the pulse output from the zoom PI 213.
When the timer 1 overflows, the process proceeds to step S263, in which the motor is turned off, and in step S264, the switching plunger 206 is turned off, and the process proceeds to damage processing.

If it is determined in step S254 that there are two pulses of the zoom PI 213, it is determined that the W → Z switching has been completely switched, and the flow advances to step S255.
Here, the timer 2 is set. The timer 2 is a time for the WZ motor 201 to brake when the time until the overflow occurs. In step S256, the brake is applied to the WZ motor 201, and the brake is started. Next, the process proceeds to step S257 to check the edge of the pulse output from the zoom PI 213. If there is an edge, the flow advances to step S258 to count down the count value ZMPLS by "1". If there is no edge, step S259
Proceed to.

If the timer 2 has not overflown in step S259, the flow returns to step S256 to continue counting the zoom PI 213 pulses while applying the brake. The count value ZMPLS is a value indicating a zoom position. If the timer 2 has overflown in step S259, it means that the brake time has ended, and the flow advances to step S260 to turn off the WZ motor 201. Next, in step S260, the switching plunger 206 is turned off.
Then, the W → Z switching is completed.

As described above, in the W → Z switching, the completion of the switching is determined by detecting that the zoom has slightly moved.

FIG. 86 is a flowchart showing the operation of switching from Z to W (switching the mechanical drive system from the zoom drive system to the film feeding system).

In step S270, switching plunger 206
Is turned on to bring the WZ carrier 204 into a rotatable state during the waiting time in step S271. Step S272
Sets the timer. The timer limits the time for applying a high voltage to the WZ motor 201 when the motor for switching is started. In step S273, a high voltage is applied to the WZ motor 201 to start the motor. In step S274, it is determined whether the timer has overflowed. If not, the flow returns to step S273 to continue the motor high voltage drive. At this time, the WZ carrier 204 has the planetary gear 203
8 is moving in the direction of engagement.

If the timer overflows, WZ
It is determined that the start of the motor 201 has been completed and step S2
Go to 75. Here, the motor voltage is reduced to a low voltage. A step S276 decides whether the output signal of the carrier PI 207 is H or L.

The switching PI 207 outputs L when the WZ carrier 204 is on the Z side, and outputs H when the WZ carrier 204 is on the W side. The timing for switching from L to H is set before the planetary gear 203 meshes with the hoisting sun gear 208. is there. Therefore, when the output of the carrier 207 is L in step S276, the low voltage normal rotation of the WZ motor 201 is continued. If the output of the carrier PI 207 becomes H, it is determined that the planetary gear 203 is meshing with the hoisting sun gear 208, and step S277 is performed.
Proceed to. This waiting time is a time from when the output of the carrier PI 207 changes from L to H to when the planetary gear 203 completely meshes with the hoisting sun gear 208.

Since the mechanical switching has been completely switched from the Z side to the W side, the brake is applied to the WZ motor 201 in step S278, the switching plunger 206 is turned off in step S279, and then the W
The Z motor 201 is turned off, and Z → W switching is completed.
Note that the motor low voltage set in step S275 in this sequence is set so that the mechanical torque generated at that voltage is smaller than the load torque applied to the spool 217. There is no such thing as winding up the film.

Next, the zoom operation will be described.

FIG. 87 is a flowchart showing a zoom-up operation in the camera of this embodiment.

In step S900, a target position for the zoom-up operation is set. When extending from the retracted position to the wide position, the wide position is set as the target position, and when zooming in manually, the tele position is set as the target position. W in step S901
The Z motor 201 is rotated forward to start the zoom-up drive. In step S902, it is determined whether or not feeding from the retracted position to the wide position is in progress. If so, step S9
04, otherwise to step S903.

[0455] In step S903, it is determined whether or not the ZUSW 430 is ON. If not, the flow advances to step S912 to stop the WZ motor 201 and end the zoom-up. If it is ON in step S903, the process proceeds to step S904. In step S904, it is determined whether the current zoom position has reached the target position. If the target has not been reached, the process proceeds to step S905.

In step S905, the CPO pulse (the pulse output from the zoom PI 213) is checked, and if it is determined that there is no edge, the flow advances to step S907.
If it is determined that there is an edge, the process proceeds to step S906, and the counter value ZMPLS indicating the zoom position is counted up by "1". In step S907, it is determined whether or not it is being extended from the retracted position to the wide position. If so, the process proceeds to step S910.

In step S910, the zoom PR 139 is set.
It is determined whether or not there is a falling edge. If there is no fall, the process returns to step S901 to continue the zoom-up operation. If there is a fall, step S91
Proceeding to 1, the counter value ZMPLS indicating the zoom position is reset by the wide reset tenter WRPLS. By doing so, even if the ZMPLS up to that point is shifted from the actual zoom position for some reason, the change position information of the signal of the zoom PR 139 indicating the absolute position of the zoom position is reset, and the shift amount becomes φ. . Then step S
Return to 901.

If it is determined in step S907 that the lens is not being advanced from the retracted position to the wide position, the flow advances to step S908 to determine whether or not the zoom PR 139 has a rising edge. If there is no rising edge, step S901
Return to step S9 if there is a rising edge.
Go forward 09. In step S909, ZMPLS is reset with the tele-reset data TRPLS, and step S901 is performed.
And the zoom-up operation is continued. When the current zoom position reaches the target position in step S904, the process proceeds to step S912, where the WZ motor 201 is stopped, and the zoom-up operation ends.

FIG. 88 is a flowchart showing the zoom PI 213, the zoom PR 139 and the zoom PR 139 in the flowchart shown in FIG.
MPLS and actual zoom position (collapse, WIDE, TEL
It is explanatory drawing which showed E) simply.

FIG. 89 is a flowchart showing a zoom-down operation in the camera of the above embodiment.

[0460] In step S930, a target position for the zoom-down operation is set. The target position is the retracted position when retracting into the retracted position, and the wide position when manual zooming down. In step S931, the WZ motor 201
Is reversed to start the zoom-down drive. Step S
At 932, it is determined whether or not retraction is being performed.
Then, if it is being transferred, the process proceeds to step S934,
Otherwise, the process proceeds to step S933.

[0462] In step S933, the ZDSW 431 is
It is determined whether or not N has been turned on. If it has not been turned on, the process proceeds to step S940, the WZ motor 201 is stopped, and the zoom-down ends. If it is ON, the process proceeds to step S934. In step S934, it is determined whether the current zoom position has reached the target position. If the target has not been reached, the process proceeds to step S935.

In step S935, the CPO pulse (the pulse output from the zoom PI 213) is checked, and if it is determined that there is no edge, the flow advances to step S937.
If it is determined that there is an edge, the flow advances to step S936 to count down the counter value ZMPLS indicating the zoom position by "1".

[0464] In step S937, it is determined whether or not the retraction is being performed. If the transfer is being performed, the process proceeds to step S938. In step S938, the zoom PR1
It is determined whether or not 39 has a rising edge.
If there is no rise, the process returns to step S931 to continue the zoom-down operation. If there is a rise, step S
Proceeding to 939, the counter value ZMPLS indicating the zoom position is reset by the wide reset tenter WRPLS. By doing so, even if the ZMPLS up to that point is shifted from the actual zoom position for some reason, the ZMPLS is reset to the change position information of the signal of the zoom PR 139 indicating the absolute position of the zoom position. Become. Then, the process returns to step S931.

If it is determined in step S937 that the retraction is not being performed, the process returns to step S931 to continue the zoom-down operation. Then, in step S934, when the current zoom position reaches the target position, the process proceeds to step S940 and W
The Z motor 201 is stopped, and the zoom-down operation ends.

FIG. 90 is a flowchart similar to the flowchart shown in FIG. 89, except that the zoom PI 213 and the zoom PR 139, Z
MPLS and actual zoom position (collapse, WIDE, TEL
E) is simply shown.

Next, regarding the autofocus calculation processing,
This will be described with reference to the flowchart in FIG.

In the flowchart shown in FIG. 91, first, in step S751, a calculation for calculating the reciprocal 1 / L of the distance from the camera to the subject is performed from the autofocus distance measurement value obtained in step S100 of the flowchart shown in FIG. Do.

Next, in step S752, the above 1 /
It is determined whether or not the L data has become larger than the closest value.
Proceed to 753 and round the 1 / L data to the nearest value. Subsequently, the flow advances to step S754 to determine the number of payout pulses based on the 1 / L data. The calculation here uses an approximate expression taking into account the zoom encoder value in addition to the 1 / L data.

[0470] Next, in step S755, a zoom focus correction amount which is a shift amount of the infinity position due to zooming is calculated from the zoom encoder value. The amount of zoom focus correction is obtained by a value converted to the number of payout pulses. Thereafter, in step S756, the above-mentioned zoom focus correction amount is added to the above-mentioned number of extended pulses, and the number is newly stored as the number of extended pulses.

Next, the exposure processing will be described with reference to the flowchart in FIG. This process is a process of Step S114 in the main flow of FIG.

First, power supply to the shutter plunger 111 is started in step S801. Next, step S80
At 2, the ON state of the shutter PR110 is checked.
If the shutter PR110 is off, step S
Proceed to 811 to check the energization time. If the energization time for the shutter flanger 111 is within 0.5 seconds, the process returns to step S802 and the shutter PR110 is checked again. Here, if 0.5 seconds or more have elapsed after the energization, the process proceeds to step S812, where the shutter plunger 1
The energization of No. 11 is terminated, and the process proceeds to damage processing. This indicates that the shutter did not open even though the shutter plunger 111 was energized.

Next, in step S802, the shutter PR1
When 10 is turned on, the process proceeds to step S803, and the hard timer T1 inside the CPU 401 is started. This timer T1 is set so as to overflow at the minimum resolvable time of the exposure time and the light emission time obtained in step S103 in the main flow of FIG. Next, the flow advances to step S802 to check for overflow of T1.

If it is before the overflow, the process returns to the step S802 to continue the wait process. If there is an overflow of T1, the process advances to step S805 to count the number of light emission seconds. In the next step S806, when the counting of the light emission time is completed and the light emission timing comes, the process proceeds to step S807, and light emission processing is performed.

If it is before the light emission timing in step S806, the flow advances to step S808, and also in step S103.
The exposure time obtained by the above is counted. Next step S8
If it is determined at 09 that the exposure has been completed, the process proceeds to step S810 to complete the exposure.

If it is determined that the exposure has not been completed, the flow returns to step S804, and the overflow of T1 is checked again.

Here, the processing in the case where it is determined that the light emission timing has been reached in step S806 will be described.

In step S807, the state of light emission obtained during the AE calculation is checked. If light emission is present, the flow advances to light emission processing step S813 for controlling the light emission signal of the flash charging light emission circuit 403. After the light emission processing is completed, the flow advances to step S808 to advance the exposure time. If there is no light emission, the process proceeds directly from step S807 to step S8.
Go to 09.

The above is the description of the loop of the exposure processing.

After the exposure is completed, the power supply to the shutter plunger 111 is turned off and the shutter is closed in step S810. This is the end of the entire description of the exposure processing.

Next, the details of the operation of extending the autofocus lens (step S113 in FIG. 82) and the operation of resetting the autofocus lens (step S115 in FIG. 82) will be described.

FIG. 95 is a developed view showing an auto-focus lens extending mechanism in the camera system of this embodiment.

In the figure, reference numerals 142 and 143 denote pins and photographing lenses for adjustment. As shown by arrows in the figure, focus adjustment (automatic adjustment) is performed by moving in the front-rear direction parallel to the two-dot chain line representing the optical axis center line. Focus extension operation).
The focus adjustment movement of the photographing lenses 142 and 143 is performed via the cam follower 55d of the third lens group frame 55, in which the focus cam ring 58 rotates around the optical axis center line and comes into contact with the cam surface 58a of the focus cam ring 58. And transmitted to the taking lenses 142 and 143. The second lens group frame 54 is urged by a second lens group spring 61, whereby the second lens group frame 54 and the third lens group frame 55 are always extended integrally with the rotation of the focus cam ring 58, and retraction is performed. Will be.

The driving force of the AF motor 108 is transmitted through the focus drive gear train 146 as a rotating power of the focus cam ring 58 and, as a result, a focus adjusting operation of the photographing lenses 142 and 143. The movement of the focus adjustment of the photographing lenses 142 and 143 is controlled by the CPU 401 monitoring the movement of the AF motor 108 by the pulse of CPO in FIG. 81 generated in synchronization with the focus PI 109.

[0485] The auto-focus lens extension amount obtained by the auto-focus calculation of the release sequence described above is represented by the count (number of pulses) of pulses generated in the CPO 435 in FIG.

FIGS. 93 and 94 show the AF motor 108.
, Focus PI 109 and photographing lenses 142 and 143
FIG. 93 shows a state when the taking lens is extended, and FIG. 94 shows a state when the taking lens is reset.

[0487] The AF motor 108 is rotated in the reverse direction to rotate the photographing lenses 142 and 143 with reference to the point 620 where the focus cam ring 58 comes into contact. Then, the photographing lens is extracted for a predetermined number of pulses obtained by the autofocus calculation. In a steady state in which the camera does not perform the photographing operation, the photographing lenses 142 and 143 are set at the lens reset position 642, and the autofocus lens reset operation is performed by moving the photographing lens 611 to the lens reset position 642.
Is to move up. These lens driving operations are C
It is processed by a program stored in a ROM (not shown) in the PU 401, and FIG. 96 shows a flowchart of the program.

The program in this flowchart is called as an auto-focus lens extension (step S113) and an auto-focus lens reset (step S115) on a release processing program (the flowchart of FIG. 82) as one subroutine.

In extending the AF lens, first, in step S
Step S3 for rotating the AF motor 108 in 301
In 02, it is determined whether the photographing lenses 142 and 143 have hit the reset direction. If no, the AF motor 108 continues to rotate in the reverse direction.
The flow advances to step 303, where the AF motor 108 is rotated forward to extend the photographing lens. Proceeding to step S304, the photographing lens 142,
The control range in the driving of 143 (652 to 65 in FIG. 93)
3) Determine if you have entered. This judgment is based on CPO435
Is performed based on the value counted from step S303.

[0490] When the value falls within the control range, the photographing lenses 142 and 143 obtained by first counting the pulses of the focus PI 109, that is, the CPO signal.
Is compared with the target position to check whether it is one pulse before the target position, and if it is one pulse before, the brake is applied and the control ends (steps S306, S307, and S308). Normally, immediately after entering the control range, the current position does not reach one pulse before the target position, so the current moving speed of the photographing lenses 142 and 143 is compared with the value on the deceleration curve corresponding to the current moving amount. I do.

The value on the deceleration curve is stored in advance in a ROM (not shown) in the CPU 401. Here, the moving speed of the photographing lenses 142 and 143 is C
It is detected by measuring the pulse interval of PO. If the moving speed is faster than the deceleration curve, step S3
From 09, the process proceeds to step S314 to apply the brake and decelerate.

If it is late, the flow advances from step S309 to step S315 to subtract a certain value x from the value of the deceleration curve.
Determine if it is faster or slower. If it is determined that the speed is fast, the motor is opened (off) in step S316.
Then, the photographing lenses 142 and 143 are moved by inertia. If it is determined that it is late, it is determined in step S317 whether it is within three pulses (not limited to three pulses) before the target position. If it is within 3 pulses, set a flag to recognize that control acceleration is in progress and set A
The F motor 108 is turned on (step S319), and if not within three pulses, the AF motor 108 is simply turned on (step S318).

After the AF motor 108 is turned on / off, braked, and reverse-rotated braked and controlled as described above, the rising edge of the CPO pulse is then detected to detect the moving speed of the photographing lenses 142 and 143. It is detected (step S320). That is, at the time when the pulse rises, the time from the previous rise of the pulse is calculated, and this is set as the moving speed of the photographing lenses 142 and 143 (step S321). If the pulse of the CPO does not rise, the time without the rise is counted, and assuming that a certain time has elapsed, it is determined that the stop has occurred before reaching the target position for some reason (step S324). Then, the AF motor 108 is forcibly turned on and waits for the rise of the pulse. This fixed time is called a stop limiter.

This stop limiter makes this program more resistant to heavy load conditions. The stop limiter stops at the braking speed before reaching the target position due to erroneous determination because the moving speed exceeds the speed detection limit of the program due to a decrease in the motor voltage or an increase in the moving load of the photographing lenses 142 and 143. This is an effective function when it is lost. After the stop limiter is turned on (step S325), if the CPO pulse does not rise even after a certain period of time, it is determined that the state is abnormal (step S326).
The process proceeds to step S327 to turn off the F motor 108 and perform the abnormality process.

[0495] When the pulse of the CPO rises, speed detection is performed in step S321, and thereafter, it is determined in step S322 whether the vehicle is in the limited acceleration state or the stop limiter state. If so, the AF motor 108 is turned off or the brake is applied to the AF motor 108 (step S323). Otherwise, the process returns to step S306 again without any operation, and it is determined whether the current position is one pulse before the target position. When the pulse reaches one pulse before, the brake is applied in step S307 and the photographing lens driving is terminated (step S308). As long as the pulse does not reach one pulse before, the above-described control operation is repeated, so that the photographing lenses 142 and 143 decelerate toward the target position along the deceleration curve.

FIG. 97 shows the photographing lenses 142 and 143.
FIG. 4 is a diagram showing a process of deceleration of the vehicle by a moving amount and a moving speed.

In FIG. 97, the horizontal axis is the photographing lens 1
The moving amounts of 42 and 143 and the vertical axis is the moving speed. A deceleration curve is indicated by a broken line 700, and a curve obtained by subtracting the value x from the deceleration curve is indicated by a broken line 701. In the figure, the shaded portion rising to the right is the ON area where the AF motor 108 is turned on.
A part with a diagonal line down to the right adjacent to 01 is A
An open area where the F motor 108 is opened (off). A region that is given a vertical line with respect to the deceleration curve curve 700 is a brake region.

Next, the control operation of the AF motor 108 will be described first with reference to the case of the moving curve curve 702.

When the photographing lenses 142 and 143 are moved to enter the control range, the speed at this time becomes a deceleration curve 700.
Faster, so the brakes are applied immediately and decelerate. Then, the AF motor 108 is turned off when the vehicle enters the open area later than the deceleration curve 700, and enters the brake area when the vehicle is faster than the deceleration curve 700.
When the brake is applied to the AF motor 108 and becomes slower than the deceleration curve 700 and enters the open area, the AF
The motor 108 turns off. Thus, the deceleration curve curve 70
The vehicle decelerates along 0, brakes one pulse before the target position, and stops at the target position.

In the case of the moving curve curve 703, the initial speed is low, so that the AF motor 108 is kept on even if it enters the control range. When the brake is turned off and the speed becomes faster than the deceleration curve 700 and enters the brake area, the brake is applied. Then, the vehicle is decelerated by the brake and turned off when the vehicle enters the open area. Then, when the result is later than the curve curve 701 and enters the ON region, the brake is applied and stopped one pulse before the target position.

Next, the operation of the limit acceleration and stop limiter in the flowchart shown in FIG. 96 will be described with reference to time charts shown in FIGS. 98 and 99.

FIGS. 98 and 99 show the focus PI 109.
Output pulse waveform (CPO) 435 and the AF motor 10
8 is a time chart showing an on / off state of the power supply No. 8;

The pulse width of the CPO pulse waveform is
The speed is measured by a speed detector (not shown) in FIG. 01. If the pulse width is short, the moving speed of the photographing lenses 142 and 143 is high, and if the pulse width is long, the moving speed is low. Then, the AF motor 108 is turned on and the photographing lens 1 is turned on.
When 42 and 143 enter the control range, control such as turning on / off the AF motor 108, braking, and reverse braking starts.

Now, in the time chart of FIG. 98, when the moving speed at the rising position (1) of the CPO pulse is faster than the value of the curve 701 obtained by subtracting the value x from the deceleration curve 700, the brake area shown in FIG. Open area. Then, the speed is detected at the next rising position (2) of the CPO. As a result, if the speed is slower than the curve 701, A
The F motor 108 turns on. Then, even at the rising position (3) of the next pulse, if the speed does not reach a speed higher than that of the curve 701, the AF motor 108 is kept on. When the next pulse rise position (4) is reached and the speed detection result becomes faster than the curve 701, the AF motor 1
08 is opened and acceleration is stopped. This position (4)
Is three pulses before the target position (7), but the speed check is preferentially performed. Therefore, if the speed is faster than the curve 701, it is not checked at this time whether the pulse is three pulses before.

If the speed detection result at the rising position (5) of the next pulse becomes slower than the curve 701, it naturally falls within the range of three pulses before the target position (7), so that the limited acceleration is required. The AF motor 108 is turned on. After the speed is detected at the rising position (6) of the next pulse, the above-described limited acceleration is stopped and the AF motor 10
Turn off 8 or brake. This prevents the target position from being exceeded due to excessive acceleration just before the stop position. At this time, if the position is one pulse before, the brake is immediately applied, so the photographing lens 14
2 and 143 stop at the target position (7). In the method of limiting acceleration, the AF motor 108 may be turned off or braked at the falling edge of the pulse following the pulse rising position (5) to prevent excessive acceleration.

In the time chart of FIG. 99, when there is no next pulse for more than a fixed time at the end of the rising position (8) of the pulse, that is, the program exceeds the speed measurement limit due to overload, voltage drop, etc. When the lens movement is erroneously stopped due to the determination in this state, the AF motor 108 is forcibly turned on and continues to be turned on until a pulse rises. Here, if there is no further rise for a certain period of time, it is regarded as an abnormal state,
The abnormality processing is performed by turning off the AF motor 108. When there is a rise, the AF motor 108 is turned off or the brake is applied, and the moving speed is detected again to detect the AF motor 1.
In step 08, the vehicle is decelerated to the target position along the deceleration curve. This is a stop limiter, which is resistant to overload during control. Since the stop limiter is an emergency only, it is desirable not to work as much as possible.

In the time charts shown in FIGS. 98 and 99, the AF motor 108 is turned on and off after a lapse of a certain fixed time from the rise of the pulse. It is the time required for the judgment. The turning off of the AF motor 108 by the limited acceleration and stop limiters almost coincides with the rise of the pulse.

Next, an autofocus lens reset operation will be described. This is basically the same algorithm as the autofocus lens extension operation.

In the flowchart shown in FIG. 96, when the program for the auto-focus lens reset operation is executed, first, in step S331, the target pulse number is set. This pulse number is the same as the target pulse number when the AF lens is extended. It is.

[0510] Next, in step S332, the motor reverse rotation driving is started, and the flow advances to step S304. That is, in the case of a lens reset, the lens stop position 6 when the AF lens is extended.
The CPO pulse count is performed using 54 as a base point to perform curve control. The stop target position that is the reset position at this time is
The lens is moved from the lens stop position 654 in the reset direction by the number of target pulses to be advanced. This position is shown in FIG.
The position indicated by reference numeral 662 in FIG. 7 is near the lens reset contact position 651 in the photographing lens position.

FIG. 38 is a perspective view showing a film winding and rewinding mechanism in the camera of this embodiment.

The details of the operation of the film winding and rewinding mechanism will be described with reference to FIGS.

At the time of film winding, the planetary gear 20
3 is in mesh with the hoisting sun gear 208. When the WZ motor 201 rotates in the CW direction in the drawing, the torque is transmitted from the sun gear 202 to the planetary gear 203 and the hoisting sun gear 208, causing the hoisting planetary gear 215 to mesh with the spool 217. When the rotation is further continued, the spool 217 starts rotating in a direction in which the film 13 is pulled out from the cartridge 14, and the film 13 is wound up. The winding amount is determined by detecting perforation holes of the film 13 in the film PR249 provided to face the film 13 and counting the perforation holes.

[0514] Here, the winding operation will be described with reference to the flowchart shown in FIG.

First, in step S410, a film end detection timer is set. If the timer set here overflows, it can be determined that the film has reached the final end during winding. Next, in step S411, the film PR2
Turn on 49. This puts film 1 on CPO 435
A pulse corresponding to the perforation 3 is generated. In step S412, the counter of the pulse generated in the CPO 435 is cleared. In step S413, the output of the WZ motor 201 at the start of winding is set to a high voltage so that winding can be performed at high speed.

[0516] In step S414, motor drive is started, and the winding operation is started from here. Step S415
Then, the pulse of the CPO 435 is monitored to determine whether the pulse has fallen. If no fall has occurred, the process immediately proceeds to step S420. If there is a fall, the process proceeds to step S416, and the value of the counter cleared in step S412 is incremented by one.

In step S417, it is determined whether the count value has reached 1/2 of the film feed amount for one frame. If not, the flow directly advances to step S419. If it has reached, the process proceeds to step S418, and the WZ motor 20
1 is set to a low voltage, and the process proceeds to step S419.

At step S419, it is determined whether or not the counter value has reached the film feed amount for one frame. If not, the process proceeds to step S420. If it has, the process proceeds to step S421 as the end of one-frame winding. Step S42
At 0, it is determined whether or not the film end detection timer has overflowed. If the timer has not overflowed, the flow returns to step S414 to repeat the film winding control.

If overflow has occurred, the winding operation determines that the end of the film has been reached, and shifts to film end processing for automatic rewinding. Step S41
If it is determined in step 9 that the winding of one frame is completed, the process advances to step S421 to apply a brake to the WZ motor 201 for a predetermined time to stop the winding of the film 13.

[0520] The reason why the driving time of the WZ motor 201 is reduced in the middle of the winding in step S418 is to secure a good film stop position even with the simple brake in step S421.

[0521] In the present embodiment, the date / time imprinting mechanism employs a method that is performed during film winding. The imprinting method will be described below.

FIGS. 52 to 57 are views showing the imprinting mechanism.

[0523] Further, for imprinting, a roller 260 is provided so as to be in contact with the film 13 so as to be rotatable in accordance with the movement of the film, data PR261 for detecting the rotation of the roller 260, and a photographing opening of the main body 4. 4c, a 7-segment LED 248 installed at a position on the spool 217 side facing the photosensitive surface of the film 13, and a 7-segment LE between the film 13 and the 7-segment LED 248.
A date lens 247 installed at a position where the light of D248 is focused on the surface of the film 13 is also configured.

[0524] When the film 13 is wound, the roller 260 in contact with the film 13 rotates, and this rotation is detected by a pulse output from the data PR261, and the pulse count becomes the film movement. In addition, data P
The imprinting LED 24 is synchronized with the output pulse of R261.
8 is turned on, and characters to be copied are sequentially printed.

Now, the date imprinting operation will be described with reference to the flowchart shown in FIG.

First, in step S430, the transfer parameters are transferred from the CPU 401 to the DT-CPU 426. This is called communication mode B. The imprint parameters are the ISO information of the film, the emission time of the 7-segment LED 248 in ISO 100, the imprint position CP, etc.
This is data necessary for imprinting possessed by U401.
In step S431, the CPU 401 sends the DT-CPU
426, and transfer the imprint standby command to DT-426.
The CPU 426 is set to the date imprint standby mode.
This is called communication mode C. In step S432, winding starts, and the WZ motor 201 starts operating.

[0527] In step S433, after the start of winding, it is determined whether or not a predetermined perforation has been wound. If the predetermined perforation has not been wound, step S433
Is repeatedly executed. If it has been wound, step S
Proceed to 434. In step S434, the data PR26
1 is monitored, and it is determined whether a predetermined number of pulses have been wound after proceeding to step S434. If the predetermined pulse has not been wound, step S434 is repeated, and if it has been wound, the process proceeds to step S435.
From here, the copying operation starts, and in step S435,
The falling edge of the pulse output from the data PR 261 is determined. If there is no fall, step S435 is repeated, and if there is a fall, the process proceeds to step S436.

The fact that the process has proceeded to step S436 means that
After the winding is started, the first imprint synchronization signal is output after winding up by a predetermined perforation and a predetermined pulse, and the first character of the imprinted character is imprinted. In step S437, it is determined whether the imprinting has been completed for eight characters. If not, the process returns to step S435 to wait for a falling pulse of imprinting PR821. If the processing has been completed, the process proceeds to step S438, and the printing end processing is performed. The imprinting end processing is D
This is to release the T-CPU 426 from the imprint standby mode. This completes the imprinting operation of the date and the like in parallel with the winding operation.

FIG. 102 is a diagram showing the imprinting operation.

In the figure, T440 is a winding start point,
The movement of the film starts from here. Film PF249
Reads the perforation of the film and monitors whether a predetermined perforation has been wound (T44).
1). Thereafter, the pulse of the data PR261 is read, and it is monitored whether a predetermined pulse has been wound (T442). After the predetermined pulse has been wound, the falling edge of the pulse output by the next data PR261 is waited, and this falling edge becomes the imprint start position (T443), and the imprint synchronizing signal is changed to DT-CP.
Output to U426. D that receives the imprint synchronization signal
The T-CPU 426 causes the 7-segment LED 248 to emit light in the first character pattern.

[0531] Thereafter, every time the pulse of the data PR261 falls, an imprint synchronizing signal is output, and imprinting for eight characters is executed (T444).

In this embodiment, '93 11 (9
(January 1, 3rd year) is printed, but FIG. 102 is a view from the back of the photograph, and as an actual photograph, it is printed in a form as shown in FIG. 103. As a photograph, it will be rolled up to the right in the figure, and will be printed from the end of the character example. Also, the imprint position can be freely changed by changing the predetermined number of perforations at T441 and the predetermined number of pulses at T442 in FIG. The predetermined perforation and the predetermined pulse are one of the imprint parameters in step S431 in FIG.

Next, rewinding will be described.

In FIG. 38, when the camera is in the collapsed state, the panoramic planetary gear 220 meshes with the first rewind gear 224 in conjunction with the rotational position of the rotating frame 51 of the lens frame. When the WZ motor 201 rotates in the CCW direction in the figure,
The torque is the same as when hoisting,
08 is transmitted. This rotation direction rotates the hoisting planet gear 215 toward the panoramic sun gear 219,
Make them mesh.

When the rotation is further continued, the panorama planetary gear 220 rotates, the rewind gear trains 224 to 231 rotate, the rewind fork 231a also rotates, and the film 13 is wound around the cartridge 14 and wound. This is a return operation.

The above rewind operation will be described with reference to the flowchart shown in FIG.

First, at step S450, a timer for detecting the end of rewinding is set. In the next step S451, the film PR249 is turned on so that the perforation holes of the film 13 can be counted. A step S452 clears the value of the counter that counts the pulses linked to the perforation holes. Step S
The motor drive is started at 453, and rewinding starts. The process enters the rewind sequence loop from the next step S454.

In step S454, the carrier PI 207 in FIG. 38 is checked. The carrier PI 207
This is a photo interrupter that is turned ON when the planetary gear 203 is engaged with the winding sun or -208. The rewind direction is a direction in which the planetary gear 203 is to be moved to the zoom side. If the locking operation of the locking lever 218 of the carrier 204 (not shown) is abnormal, the WZ motor 2
The rotation in the rewinding direction of 01 causes the planetary gear 203 to move to the zoom side (the first zoom gear 209 is moved). The carrier PI 207 for detecting this may use a leaf switch or the like.

If the carrier PI 207 is OFF, it means that rewinding has not been performed normally, and the flow advances to step S467 to stop the WZ motor 201 and execute damage processing. If it is ON, it is determined that rewinding is normally performed, and the process proceeds to step S455.

[0540] In step S455, the film PR24
The falling edge of the perforation pulse output from the CPO 435 according to the signal No. 9 is detected. If there is no edge, the process proceeds to step S459. If there is an edge, the process proceeds to step S456. In step S456, the rewind end detection timer is reset. As a result, the end of the rewinding is determined based on the elapsed time from the last falling edge of the CPO 435. Next, step S45
Proceed to 7.

In step S457, the perforation pulse is counted and it is checked whether the frame has been rewound by one frame. If it has not been rewound by one frame, the process returns to step S454. If it has been rewound by one frame, it returns to step S458.
Proceed to. In step S458, the current frame numerical value is counted down. Also, since one frame has been rewound, the counter of the perforation pulse is cleared again. Then, the flow returns to step S454 to continue the rewind sequence.

According to the judgment at step S455, step S45 is executed.
In step S459, it is determined whether the rewind end detection timer has overflowed. If not, it is determined that rewinding has not been completed, and the process returns to step S454 to continue the rewinding sequence. When the overflow occurs, the rewinding has been completed, and the process proceeds to step S460 to stop the WZ motor 201.

[0543] Next, the flow advances to step S461 to check the frame value at the point where it is determined that rewinding has been completed. At this time, if the number of frames is 1 or less, rewinding has succeeded, and rewinding ends. If the number of frames is not 1 or less, it is determined that rewinding has been completed halfway for some reason, and damage processing is performed.

Next, a communication method between the CPU 401 and the DT-CPU 426 will be described based on the time charts of FIGS. 105 (a), (b) and (c) and the electric circuit diagram shown in FIG.

In FIG. 105, for the sake of convenience, the data communication direction is indicated by the hatched portion in the DT-CPU 426.
Communication from the CPU 401 to the DT-CPU 426.

[0546] The communication is performed by the CPU 401 by the DCEN line 4
It is started by setting 42d from a high level (Hi) to a low level (Lo). The communication request is sent to the CPU 401
DT-CPU4
In the relationship 26, the relationship between the master and the slave is maintained.

After setting the DCEN line 442d to Lo and waiting for a predetermined time, the CPU 401
In synchronization with the signal on the line 442d, the SDATA line 4
The control command is output on 42c. The waiting time is DT
-Determined in consideration of the processing speed of the CPU 426. The control command is used by the DT-CPU 426 to identify the communication mode. Therefore, in any communication mode, the control command is located at the head of the communication data.

Referring to FIG. 105 (a) and FIG. 81,
The communication mode A will be described. The CPU 401 outputs, as the first data, a code corresponding to the communication mode A as a control command. Next, data including a code indicating the state of the camera is output. Based on the camera state data, the DT-CPU 426 can determine whether the CPU 401 is in a normal operation or is about to enter the standby mode. A MODE switch 443 and a SET switch 444 connected to the CPU 401
(ON or OFF) can be determined.

When the CPU 401 completes the output of the two data, the DT-CPU 426 outputs to the CPU 401 the six data necessary for displaying on the display circuit 404. After this data output, a check code is output and the data output ends. The CPU 401 determines that the communication operation has been completed by inputting the check code, and sets the DCEN line 442d from Lo to Hi. In any communication mode, the check code is transmitted to the CPU 401.
Is terminated by inputting.

Next, the six data will be described.

The display control data is data indicating a display method on the display circuit 404. Following the display control data,
Data indicating “year”, “month”, “day”, “hour”, and “minute” are output. The five data indicate the contents of a clock counter that counts a clock reference clock (not shown) generated inside the DT-CPU 426. CPU 401
The display control data indicates which of the five data should be displayed on the display circuit 404 (display mode). As shown in FIG. 106, the display circuit 404 displays these data relating to imprinting in a 6-digit 7-segment display.

FIG. 109 is a table showing the correspondence between the data and the display mode.

This data also indicates the imprint mode when the DT-CPU 426 imprints date data on the film 801. This display mode is changed in the order of “1” → “2” →... → “5” → “1” every time the MODE switch 443 connected to the CPU 401 is turned on.

Next, the lower 4 bits of data will be described. Of the six-digit display of the display circuit 404, the CPU 4
The 4-bit data indicates which digit 01 flashes (flashing mode).

FIG. 110 is a chart showing the correspondence between the above data and the blinking mode.

[0556] In this table, it is assumed that a digit indicated by a shaded portion blinks. In this blinking mode, every time the MODE switch 443 connected to the CPU 401 is turned on,
"1" → "2" → "3" → "4" → "5" → "6" →
It is changed to "1".

The mode is switched to the blinking mode by keeping the MODE switch 443 ON continuously for a predetermined time.

The photographer operates the switch 443 to blink a desired digit. And MODECP
When the SET switch 444 connected to the U 401 is operated, the DT-CPU 426 changes the content of the time counter corresponding to the blinking digit and outputs the changed data to the CPU 401. Therefore, the photographer can change the date data while checking on the display circuit 404.

Next, the communication mode B will be described with reference to FIG. 105 (b) and FIG.

The CPU 401 outputs, as the first data, a code corresponding to the communication mode B as a control command. Next, the DT-CPU 426 outputs two bytes of control parameters necessary for imprinting date data on the film 13. FIG. 111 shows the data contents of the control parameters.

The printing time for one digit of the date data (that is, the light emission time of the 7-segment LED 248) is based on the printing reference time of the control parameter 2 and the printing time of the control parameter 2.
Determined by the film sensitivity coefficient of the upper nibble. STD
TM × FSK = light emission time.

The imprinting format of the lower nibble of the control parameter 2 is used to select whether to imprint the date data from the lower digit or from the upper digit. This is data determined by the position of the 7-segment LED and the moving direction of the film 13.

Next, the communication mode C will be described with reference to FIG. 105 (c) and FIG.

[0564] The C mode is a communication mode in which a code corresponding to the communication mode C is a control code and the CPU 401 outputs the code. In the communication mode C, the CPU 401
Since the mode is executed immediately before winding the film, the DT-CPU 426 can detect the winding timing by receiving this communication.

Next, the operation of the DT-CPU 426 in the camera of this embodiment will be described with reference to the flowchart of FIG.

[0566] In step S501, the DT-CPU 42
After the power is turned on and reset, the initialization operation is performed.
In this initialization, predetermined data is input to a time counter used as imprint data. Next, in step S502, the DT-CPU 426 is set to the stop mode. During the stop mode, the timer is a low power consumption mode in which only the clock timer for counting the clock of the oscillator and the interrupt function are operable. The clock timer overflows at one second intervals. This overflow is one of the interrupt signals.

Therefore, date data is created by counting up five time counters (minute, hour, day, month, year) using this interrupt signal as a reference clock.
Therefore, when an interruption by the clock timer occurs, the time counter is updated by the processing in steps S503 and S504. When the updating of the counter is completed, the process proceeds to step S502, and the stop mode is set.

[0568] The CPU 401 periodically communicates with the DT-CPU 426 when it enters the operating state. That is, DCE
The N line 442d is set from Hi to Lo. This DC
A change in the EN line 442d causes a communication interrupt, and the process proceeds to steps S505 and S506. In step S506, processing corresponding to each communication mode is performed.

In the processing in steps S507 and S508, the two switches MO connected to the CPU 401 are
The state of DE, SET 443, 444 is determined. If any of the switches transmitted from the CPU 401 to the DT-CPU 426 through the communication in step S506 is operated, the state of these switches is determined in step S51.
Move to 0. Then, processing corresponding to each switch is performed. When the MODE switch 443 is operated, the printing mode is changed and the display control data sent to the CPU 401 is changed.

When the MODE switch 443 is turned on continuously for a predetermined time, the mode is set to the correction state of the date data and the digit to be corrected is selected. Then, the display control data is changed to blink the selected digit. Further, when the SET switch 444 is operated, the content of the time counter corresponding to the selected digit is corrected.

[0571] In step S511, it is determined whether the clock timer has overflown. If the timer has overflowed, the process of step S512 is executed to update the clock counter. Then, step S5
At 13, it is determined whether a communication request has been made based on the state of the DCEN line 442d. DCEN line 442d is H
If i, go to step S507; if Lo, step S5
14 respectively.

In step S514, processing corresponding to each communication mode is performed. Then, in step S515, the operation state of the CPU 401 is determined from the code indicating the state of the camera. If the CPU 401 is about to enter the standby mode, the process proceeds to step S502 to reduce the power consumption. On the other hand, step S515
If the mode is not the standby mode in step S516,
Move to. Then, when a control parameter is input in the communication mode B, the process proceeds to step S517.

[0573] In step S517, the product of step STDTM and FSK included in the control parameters is calculated for controlling the light emission time of the 7-segment LED 427 for printing. This value is set to TON. Next, the value of the counter corresponding to the date data to be imprinted is read from the time counter in accordance with the imprint mode. This value is converted into data for lighting a 7-segment LED. This data is 8-byte data including data other than numbers (DATA1 to DATA1).
DATA8). FIG. 112 shows an example of data other than numbers.
Shown in When you copy September 15, 1990 as shown,
The part indicated by "s" in the figure is also treated as LED lighting data.

[0574] In step S518, it is determined whether or not the CPU 401 has issued a copying request according to the communication mode C. If there is a request, a subroutine "imprint" in step S519 is executed.

Next, with reference to the flowchart shown in FIG. 108, the subroutine of the imprinting operation in the camera of the above embodiment will be described.

In step S551, it is determined whether the mode is the imprinting prohibited mode. In the case of the prohibition mode, the process returns. As shown in FIG. 102, the CPU 401
When the winding of No. 3 is started, an imprint synchronizing signal is generated at a predetermined position. In step S552, a change in the level of the imprint synchronization signal from "High" to "Low", that is, a falling edge is detected. If the falling edge of the imprint synchronization signal is detected, the flow advances to step S553 to transmit the data for lighting the 7-segment LED to the DT-CPU 426.
Output from the output port. As a result, printing of one character is performed.

In step S554, after the timer counter is initialized, counting up is started. Then, during the printing time (TON), the process waits in step S555.
Then, in the next step S556, the LED is turned off and the number 1 is set.
The printing of one image ends. Next, in step S557, it is determined whether the copying of the data of 8 bytes (8 characters) has been completed. Steps S552 to S
By the processing of 557, the data of DATA1 to DATA8 is sequentially printed.

Next, the screen size switching will be described.

In FIG. 38, if the lens frame is not in the collapsed state, the panoramic planetary gear 220 is engaged with the cam gear 222 for switching the screen size. FIG. 113 is a time chart showing the screen size switching operation.

[0580] Light-shielding masks 242, 24 on the film screen
3 will be described from the state where it is in the standard position. WZ at T630
The motor 201 is reversed to start switching from the standard state to the switching state. During the reverse rotation of the motor, the light shielding mask 24 is set at T631.
2, 243 ends switching to the switching state. Then T
At 632, the PN detection SW 245 is turned ON, and by monitoring this, it can be determined that the switching has been completed.
At T632, the motor short brake, the motor normal rotation brake, and the motor short brake are actuated immediately to stop the mechanical overrun to a minimum, and the switching control ends. Switching from the switching state to the standard state is started from T640.

[0583] The rotation direction of the WZ motor 201 is the same as the direction of switching from the standard state to the switching state. W at T640
The Z motor 201 is reversely rotated to start switching from the switching state to the standard state. During the motor reverse rotation, between T641 and T642, the light shielding masks 242 and 243 finish switching to the standard state. Then, at T643, the PN detection switch 245
The state becomes the FF state, and by monitoring this, it can be determined that the switching has been completed. At T643, the motor short brake, the motor normal rotation brake, and the motor short brake are immediately activated to stop the overrun of the mechanism to a minimum, thereby ending the switching control. The change point of the PN detection SW 245 is a switch for judging that the light shielding mask has been completely switched, and is set to be offset in a direction delayed from the change point of the light shielding mask.

FIG. 114 is a flowchart specifically showing the screen size switching operation described above.

First, in step S650, an abnormality detection timer for screen size switching is set. In step S651,
Set the motor voltage for screen size switching. This voltage is
It can be set separately when switching from the standard state to the switching state and when switching from the switching state to the standard state. Step S652
Then, the reverse rotation of the motor is started, and the switching operation starts. Proceed to step S653 and the edge of PN detection SW 245 (ON → O
FF, OFF → ON) is checked. If there is no edge, the flow advances to step S654 to check the state of the carrier PI 207 in FIG.

If the carrier PI 207 is ON, the drive system mechanism is normal, and the flow advances to step S655.
If the carrier PI 207 is in the OFF state, it is determined that a mechanical abnormality has occurred, and the process proceeds to damage processing. In step S655, it is checked whether the abnormality detection timer has overflown. Even when overflow occurs, it is determined that the screen size cannot be switched due to some abnormality, and the process proceeds to the damage processing. If not, step S
Returning to 652, the screen size switching control is repeated.

If there is an edge of the PN detection SW 245 in step S653, the flow advances to step S656 to short-circuit the WZ motor 201 for a certain period of time to apply a brake. When the process proceeds to step S657, the switching operation is still moving by inertia. In order to minimize overrun and stop the motor in a short time, the WZ motor 201 is rotated forward and a stronger brake is applied. If this is continued for a predetermined time, the switching operation is almost stopped. Further, step S658
Then, the short brake is applied again, the WZ motor 201 is turned off in step S659, and the screen size switching operation ends.

In the present embodiment, the SET switch 444 (see FIG. 81) normally functions as a switch for activating the display illumination device 454, and operates as a switch for activating the display illumination device 454 in the date display blinking mode. Function and the function as a switch to correct the date and time.

However, the SET switch 444 is always operated when correcting the date and time, and is always operated even when it is not necessary to operate the display lighting device 454, so that the battery is unnecessarily consumed. Would be. In order to solve this problem, the function of the SET switch 444 is changed to the date and time in the blinking mode of the date display.
The function may be limited to the function of correcting the time.

According to the present embodiment, as described above,
The following effects can be obtained.

1) Since the terminal electrodes of the LCD 404 and the terminal electrodes of the CPU 401 for controlling the LCD drive on the main substrate 301 have a front-to-back relationship, it is not necessary to route the pattern long, and the connection can be made in the shortest distance through the through hole. It is possible. As a result, the mounting efficiency is increased and the area of the main board can be reduced.

2) Since the main board 301 is a hard printed board and the switch input pattern is provided on the upper surface, there is no need for a support member such as a main body for supporting the board when the switch is pressed on the back surface. Therefore, when such a configuration is adopted, it is possible to mount an element requiring a large mounting area on the back surface of the main substrate. Thereby, a small camera can be provided.

[0591] 3) The shape of the light guide plate 330 is changed to the light incident surface 330a.
In this case, the illumination device is configured to be thick and the irradiation surface 330b is configured to be thin, so that the loss of the light source light amount can be effectively reduced and the height of the illumination device can be reduced and the illumination device can be made thin. This can provide a small camera having an LCD with a bright lighting device.

4) Since there is no erroneous signal to the signal line or erroneous operation of the integrated circuit, a highly reliable camera can be provided even in a severe use environment or continuous use.

5) Since the mounting density of the substrate is increased and the volume efficiency of the connecting portion is increased, a small-sized camera can be provided.

6) The motor, power transmission mechanism, screen size switching mechanism, and finder screen switching mechanism are each arranged at the shortest distance by effectively utilizing the space where the volume of the camera does not increase, so that the power transmission mechanism can be minimized. It is possible to provide a camera that can be realized and has a small screen size.

7) Since film winding / rewinding / zooming and screen size switching are realized by using the same motor arranged in the spool and the same speed reduction mechanism arranged in the lower part of the spool chamber, it is small and inexpensive. Can provide camera.

8) Since the operation member for switching the screen size is arranged on the upper surface of the camera, more specifically, at a position where the left index finger can operate when holding the camera, an electric input switch form that can be operated lightly with a short stroke is adopted. The screen size can be easily and instantaneously switched by one-touch operation even when looking at the viewfinder or mounted on a tripod.

9) Since the screen size is switched electrically, it is only necessary to provide an external operation button for switching the screen size, and the camera can be easily waterproofed.

10) Using the first detecting means for detecting the movement of the perforation to control the winding of one frame of the film, a position serving as a reference of a data recording start position is detected, and a position higher than the reference position is detected. By imprinting the data based on the output of the second detection means of the resolution, it is possible to provide a camera capable of imprinting the data at an accurate position on the photographing screen at regular intervals.

11) An easy-to-use and inexpensive camera can be provided without increasing the number of operation members and using an operation member that does not function during normal use for lighting the display means. .

12) Since the illumination can be turned on only for a necessary time only when the user needs it, a camera with a long battery life that does not consume wasteful energy can be provided.

13) The lighting of the display means can be manually performed when the user feels it necessary, so that an easy-to-use camera can be provided.

14) In the shooting mode in which the user checks various shooting modes and the number of frames, etc., the display means can be checked in a short time, so that the lighting is automatically turned off in a short time.
A camera with a long battery life that does not consume wasteful energy can be provided.

15) In the correction mode in which the user corrects the imprint data while looking at the calendar or clock, it takes a long time to check the data to be corrected, so that the illumination is automatically turned on for a longer time than in the imprint mode. Since the light is temporarily turned off, it is possible to provide a camera which is easy to use and consumes no wasteful energy and has a long battery life.

16) When the user modifies various shooting modes and imprint data, the lighting time is automatically extended so that the user can surely confirm it, so that the battery life is easy to use and consumes no wasteful energy. Can provide a long camera.

17) It is possible to provide a camera which has a long battery life due to low energy consumption and has a lighting function for an external display which is extremely excellent in usability.

[0606]

As described above, according to the present invention, it is possible to provide a small-sized camera having high mounting efficiency of a board and high reliability.

[Brief description of the drawings]

FIG. 1 is an external top view of a camera according to an embodiment of the present invention.

FIG. 2 is an external front view of the camera of the embodiment.

FIG. 3 is a top perspective view showing the internal configuration of the camera of the embodiment.

FIG. 4 is a front perspective view showing the internal configuration of the camera of the embodiment.

FIG. 5 illustrates a lens barrel of the camera according to the embodiment.
FIG. 5 is a central sectional view showing a state of a focus group initial position (infinity side) at a wide angle end.

FIG. 6 illustrates a lens barrel of the camera according to the embodiment.
FIG. 5 is a central sectional view showing a state of a focus group extending position (closest side) at a wide angle end.

FIG. 7 illustrates a lens barrel of the camera according to the embodiment.
FIG. 7 is a central cross-sectional view showing a state of a focus group initial position (infinity side) at a telephoto end.

FIG. 8 illustrates a lens barrel of the camera according to the embodiment.
It is a conceptual diagram showing movement of each lens group at the time of zooming.

FIG. 9 is an exploded perspective view of a lens barrel in the camera of the embodiment.

FIG. 10 is an exploded perspective view of a lens barrel in the camera of the embodiment.

FIG. 11 is an exploded perspective view of a lens barrel in the camera of the embodiment.

FIG. 12 is an exploded perspective view of a lens barrel in the camera of the embodiment.

FIG. 13 is an explanatory view showing a combined state of a middle frame, an interlocking plate, and a front frame of a lens barrel in the camera of the embodiment.

FIG. 14 is a cross-sectional view of a main part of the lens barrel of the camera according to the embodiment, showing a connected state of a front frame, a second lens group frame, and an interlocking plate.

FIG. 15 is a side view showing a second lens group frame, a third lens group frame, and a focus cam ring of the lens barrel of the camera of the embodiment.

FIG. 16 is an exploded perspective view of a main part of the lens barrel of the camera according to the embodiment, showing a connecting portion of the focus drive unit and the barrier drive gear.

FIG. 17 is an exploded perspective view of a main part of the lens barrel of the camera of the embodiment, which is a main part of a connection portion between the focus drive unit and the barrier drive gear, as viewed from another angle.

FIG. 18 is an explanatory diagram showing a transmission state of a lens barrel in the camera of the embodiment to a barrier drive system of a lens barrier drive switching mechanism.

FIG. 19 is an explanatory diagram showing a non-transmission state of the lens barrel of the camera of the embodiment to the barrier drive system of the lens barrier drive switching mechanism.

FIG. 20 is a diagram showing a closed state of a barrier in the lens barrel of the embodiment.

FIG. 21 is a diagram showing an opened state of a barrier in the lens barrel of the embodiment.

FIG. 22 is a longitudinal sectional view and a transverse sectional view showing a barrier drive ring and a barrier drive gear in the lens barrel of the embodiment.

FIG. 23 is a developed view showing the inner surface of the fixed frame in the lens barrel of the embodiment.

FIG. 24 is a developed view showing an inner peripheral portion of a rotating frame in the lens barrel of the embodiment.

FIG. 25 is a cross-sectional view of a lens barrel flexible printed circuit board, an FPC guide, and peripheral portions thereof in the wide, standard, and tele states of the lens barrel of the embodiment.

FIG. 26 is a perspective view of a main part showing a lens frame flexible printed board and an FPC guide in the lens barrel of the embodiment.

FIG. 27 is a conceptual diagram of a flexible printed circuit board for connecting main parts of a drive circuit in the lens barrel of the embodiment.

FIG. 28 is an exploded perspective view of a main part showing a configuration of a shutter mechanism of the embodiment.

FIG. 29 is an explanatory diagram showing a state when the shutter is closed in the shutter mechanism of the embodiment.

FIG. 30 is an explanatory diagram showing a state when the shutter is opened in the shutter mechanism of the embodiment.

FIG. 31 is a side view showing a shutter lever, a locking arm, and peripheral portions thereof in the shutter mechanism of the embodiment.

FIG. 32 is a side view showing the locking arm and the shutter lever as viewed in the direction of arrow A in FIG. 31;

FIG. 33 is a side sectional view showing an elastic arm portion and its peripheral portion in the embodiment.

FIG. 34 is an explanatory diagram showing a state when the height of the bent portion in the elastic arm portion in the embodiment changes.

FIG. 35 is a diagram showing an opening waveform in the shutter mechanism of the embodiment.

FIG. 36 is a diagram showing an example of a one-opening waveform in a conventional shutter mechanism.

FIG. 37 is a schematic configuration diagram showing a main part of the camera of the embodiment.

FIG. 38 is a perspective view showing a main part of the camera of the embodiment.

FIG. 39 is a plan view showing a main gear train when a zooming operation is possible in the camera of the embodiment.

FIG. 40 is a plan view showing a main gear train of the camera according to the embodiment when a film winding operation is possible.

FIG. 41 is a plan view showing a main gear train of the camera according to the embodiment when a film rewinding operation is possible.

FIG. 42 is a plan view showing a main gear train when a photographing screen size switching operation is possible in the camera of the embodiment.

FIG. 43 is a perspective view showing the entire panorama switching mechanism in the camera of the embodiment.

FIG. 44 is a plan view showing the positional relationship between the cam gear 222 and the arm 240a of the first panoramic gear 240 when the camera has the standard screen size in the camera of the embodiment.

FIG. 45 is a plan view showing a state at the moment when the arm 240a of the first panoramic gear 240 rotates toward the center of the cam gear 222 in the camera of the embodiment.

FIG. 46 shows the camera according to the embodiment shown in FIG.
FIG. 4 is a plan view showing a state where the cam gear 222 slightly rotates from the state shown in FIG.

FIG. 47 is a plan view showing a state in which the arm 240a of the first panoramic gear 240 is rotated in a direction away from the center of the cam gear 222 by the first cam 222a of the cam gear 222 in the camera of the embodiment. It is.

FIG. 48 is a front view of a principal part showing a panorama switching mechanism in a state where a wide photographing screen size is selected in the camera of the embodiment.

FIG. 49 is a front view of a principal part showing a panorama switching mechanism in a state where a narrow photographing screen size is selected in the camera of the embodiment.

FIG. 50 is a main part side view showing the panorama switching mechanism in a state where a wide photographing screen size is selected in the camera of the embodiment.

FIG. 51 is a side view of a principal part showing a panorama switching mechanism in a state where a narrow photographing screen size is selected in the camera of the embodiment.

FIG. 52 is a side view of the main part of the camera according to the embodiment, viewed from a direction opposite to FIG. 50, showing the panorama switching mechanism in a state in which a wide shooting screen size is selected.

FIG. 53 is a side view of a main part of the camera of the embodiment, showing a panorama switching mechanism in a state where a narrow photographing screen size is selected, viewed from a direction opposite to FIG. 51;

FIG. 54 is a sectional view showing a main part of the camera of the embodiment.

FIG. 55 is an enlarged sectional view of a main part near a roller in the camera of the embodiment.

FIG. 56 is a rear view of the camera according to the embodiment, showing the back cover in an open state.

FIG. 57 is an enlarged perspective view of a roller in the camera of the embodiment.

FIG. 58 is a diagram showing a timing chart for explaining imprinting of data and an example of imprinted characters when the detection resolution is precise in the camera of the embodiment.

FIG. 59 is a diagram showing a timing chart for explaining data imprinting and an example of imprinted characters when the detection resolution is low in the camera of the embodiment.

FIG. 60 is an exploded perspective view showing the finder unit, the exterior panel, and the rotating frame of the embodiment.

FIG. 61 is an exploded perspective view showing a configuration of a finder optical system in the finder unit of the embodiment.

FIG. 62 is an exploded perspective view showing a state where the finder optical system of the embodiment is partially assembled.

FIG. 63 is a plan view showing an engagement state of a cam member, a first variable power lens, and a second variable power lens in the telephoto state of the embodiment.

FIG. 64 is a plan view showing the engaged state of the cam member, the first variable power lens, and the second variable power lens in the wide angle state of the embodiment.

FIG. 65 is a cross-sectional view showing a first example of a configuration for improving the position accuracy of the finder optical system having a zoom function according to the embodiment.

FIG. 66 is a perspective view showing a configuration related to panorama switching in the finder unit of the embodiment, viewed from the rear side of the camera.

FIG. 67 is a plan sectional view showing a case where the finder is in a panoramic state in the configuration relating to panorama switching of the finder unit of the embodiment.

FIG. 68 is a plan sectional view showing a case where the finder is in a normal screen state in the configuration relating to panorama switching of the finder unit of the embodiment.

FIG. 69 is a plan sectional view showing a case where the finder is in a panoramic state in the configuration relating to panorama switching of the finder unit of the embodiment.

70 is a view showing the eyepiece variable power lens frame shown in FIG. 68 from the direction of the arrow J and showing a sectional view of a field mask portion of the finder.

FIG. 71 is a front view of the camera body in a normal state, showing the interlocking operation between the panoramic mechanism for regulating the aperture of the photographing screen and the eyepiece zoom lens of the finder unit according to the embodiment.

FIG. 72 is a partial front view of the camera body in a panoramic state, showing the interlocking operation between the panoramic mechanism for regulating the aperture of the photographing screen and the eyepiece zoom lens of the finder unit according to the embodiment.

FIG. 73 is a cross-sectional view showing a configuration of a photometric optical system of the camera of the embodiment.

FIG. 74 is a perspective view showing a mounted state of electric components in the camera of the embodiment.

FIG. 75 is a perspective view showing a mounted state of electric components in the camera of the embodiment.

FIG. 76 is a cross-sectional view of a connection portion when the main board and each flexible printed circuit board in the camera of the embodiment are fastened by a fastener.

FIG. 77 is a top view specifically showing a main board in the camera of the embodiment.

FIG. 78 is a top perspective view showing the main board of the camera of the embodiment as seen through from above.

FIG. 79 is a cross-sectional view showing the display illumination device and its peripheral portion in the camera of the embodiment.

FIG. 80 is an enlarged view of a main part of the display illumination device of the camera according to the embodiment, showing a light-entering portion of a light-guiding plate that receives light from a light source;

FIG. 81 is an electric circuit diagram showing an electric configuration of the camera of the embodiment.

FIG. 82 is a flowchart showing a release processing algorithm by operating a first release switch (1RSW) and a second release switch (2RSW) in the camera of the embodiment.

FIG. 83 shows a CPU 40 in the camera according to the embodiment.
3 is a flowchart showing the operation of FIG.

FIG. 84 shows a CPU 40 in the camera according to the embodiment.
3 is a flowchart showing the operation of FIG.

FIG. 85: Zoom UP in the camera of the above embodiment
9 is a flowchart illustrating a subroutine of a processing program.

FIG. 86 is a flowchart showing an operation of switching Z → W (switching a mechanical drive system from a zoom drive system to a film feeding system) in the camera of the embodiment.

FIG. 87 is a flowchart showing a zoom-up operation in the camera of the embodiment.

FIG. 88 In the flowchart shown in FIG. 87,
FIG. 4 is an explanatory diagram simply showing a zoom PI 213, a zoom PR 139, a ZMPLS, and an actual zoom position (collapse, WIDE, TELE).

FIG. 89 is a flowchart showing a zoom-down operation in the camera of the embodiment.

FIG. 90 is a flowchart showing the operation of the flowchart shown in FIG.
FIG. 4 is an explanatory diagram simply showing a zoom PI 213, a zoom PR 139, a ZMPLS, and an actual zoom position (collapse, WIDE, TELE).

FIG. 91 is a flowchart showing an autofocus calculation process in the camera of the embodiment.

FIG. 92 is a flowchart showing an exposure process in the camera of the embodiment.

FIG. 93 is an expanded diagram showing movements of an AF motor, a focus PI, and a photographing lens when the photographing lens extends in the camera of the embodiment.

FIG. 94 is an expanded diagram showing movements of the AF motor, the focus PI, and the photographing lens when the photographing lens is reset in the camera of the embodiment.

FIG. 95 is a developed view showing an auto-focus lens extending mechanism in the camera of the embodiment.

FIG. 96 is a flowchart showing an extension operation and a reset operation of an autofocus lens in the camera of the embodiment.

FIG. 97 is a diagram illustrating a process of decelerating the photographing lens in the camera according to the embodiment by a moving amount and a moving speed.

FIG. 98 is a time chart showing an output pulse waveform of a focus PI and an on / off state of an AF motor in the camera of the embodiment.

FIG. 99 is a time chart showing an output pulse waveform of a focus PI and an on / off state of an AF motor in the camera of the embodiment.

FIG. 100 is a flowchart showing a winding operation in the camera of the embodiment.

FIG. 101 is a flowchart showing a date imprinting operation in the camera of the embodiment.

FIG. 102 is a flowchart showing an imprinting operation in the camera of the embodiment.

FIG. 103 is a front view showing an example of date imprinting in the camera of the embodiment.

FIG. 104 is a flowchart showing a rewind operation in the camera of the embodiment.

FIG. 105 is a timing chart showing a communication method between the CPU and the DT-CPU in the camera of the embodiment.

FIG. 106 is a diagram showing a display example of imprint data displayed on a display circuit (LCD) in the camera of the embodiment.

FIG. 107 shows a DT-CP in the camera of the embodiment.
6 is a flowchart showing the operation of U.

FIG. 108 is a flowchart showing a subroutine of a printing operation in the camera of the embodiment.

FIG. 109 is a table showing correspondence between upper four bits of imprinted data and display modes in the camera of the embodiment.

FIG. 110 is a table showing correspondence between lower-order 4-bit data of imprinted data and blinking modes in the camera of the embodiment.

FIG. 111 is a table showing data contents of control parameters necessary for imprinting date data in the camera of the embodiment.

FIG. 112 shows a 7-segment LE displaying the value of a counter corresponding to date data in the camera of the embodiment.
FIG. 9 is a diagram showing a display example of D.

FIG. 113 is a time chart showing a screen size switching operation in the camera of the embodiment.

FIG. 114 is a flowchart specifically showing a screen size switching operation in the camera of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Camera 2 ... Mirror frame unit 3 ... Shutter unit 4 ... Main body 4a ... Patrone room 4b ... Spool room 4c ... Photographing opening 5 ... Finder unit 6 ... Main body drive mechanism 7 ... Panorama switching mechanism 8 ... Strobe light emission part 9 ... DX Code detector 10 ... Built-in battery 11 ... Main capacitor 12 ... Control circuit 13 ... Film 14 ... Patrone 15 ... Finder panorama switching mechanism 16 ... Display device 30 ... Release button 31 ... Zoom dial 32 ... Shooting mode button 33 ... Flash mode button 34 ... Self-timer / remote control button 35 ... Panorama button 36 ... Power button 37 ... Date mode button 38 ... Date set / lighting button 51 ... Rotating frame 52 ... Fixed frame 53 ... First lens group frame 54 ... Second lens group frame 55 ... Third lens group frame 56: Fourth lens 'S group holding frame 57 ... fourth lens group frame 57 58 ... focus cam ring 108 ... focus motor (AF motor) 109 ... focus photo interrupter (focus P
I) 110: Shutter trigger photo reflector (shutter PR) 110 111: Shutter plunger 139: Zoom photo reflector (Zoom PR) 150: Finder structural member 151: Fixed objective lens 155: Field mask 176: AF projection lens 177: AF Light receiving lens 201 ... Main body drive motor (WZ motor) 206 ... Switching plunger 207 ... Carrier photo interrupter (Carrier PI) 213 ... Zoom photo interrupter (Zoom PI) 217 ... Spool 245 ... Screen size detection switch (PN detection SW) 246 ... Date holder 247 Date lens 248 LED 249 Film photo reflector (film PR) 260 Roller 261 Data imprint timing photo reflector (data PR) 301 Main substrate 302: Mirror frame flexible substrate (mirror frame FPC) 303: Main body driving flexible substrate (Main body PFC) 304: Date flexible substrate (Date FPC) 305: AF flexible substrate (AF-FPC) 306: DX flexible substrate (DX- FPC) 308 LCD holding frame 309, 310 Anisotropic conductive rubber 319 AF flexible board (IR-FPC) 330 Light guide plate 330a Light entry surface 330b Irradiation surface 330c Light guide surface 330d Diffuse reflection Surface 331 holding member 332 light source 401 CPU 402 I / F-IC 403 strobe charging light emitting circuit 404 display circuit (LCD) 405 driver driving circuit (for actuator) 426 DT-CPU 454 display lighting device

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshihiro Maeda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Industrial Co., Ltd. (72) Inventor Mitsuhiro Sato 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Masatoshi Sato 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Setsuya Kataoka 2-43-2, Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Inventor Hitoshi Maeno 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd.

Claims (20)

[Claims] An integrated circuit for controlling a camera, a connection unit for transmitting and receiving an electric signal, a driving circuit for driving an actuator or a light emitting element of the camera, and the integrated circuit and the connection unit are concentrated at a predetermined position. And a printed circuit board on which the driving circuit is disposed at a position separated by a predetermined length from the predetermined position on which the centralized mounting is performed. 2. The camera according to claim 1, wherein the connection unit and the integrated circuit are mounted on opposite sides of the printed circuit board. 3. The printed circuit board according to claim 1, wherein the printed circuit board is a double-sided printed circuit board, and the connecting portion and the integrated circuit are mounted on opposite printed circuit board surfaces which are substantially back surfaces of each other. Camera. 4. The camera according to claim 1, wherein the connection portion and the integrated circuit provided on the printed circuit board are centrally mounted at a substantially central portion of the camera. 5. The camera according to claim 1, wherein in the printed circuit board, the drive circuit is disposed at a position separated by a predetermined distance from a substantially central portion of the camera in a lateral direction. 6. The integrated circuit according to claim 1, wherein said integrated circuit is a CPU and / or an interface IC.
The camera according to any one of 2, 3, 4, and 5. 7. The camera according to claim 1, wherein the driving circuit includes a power transistor element. 8. The printed circuit board according to claim 1, wherein the printed circuit board is a hard printed circuit board.
Or the camera according to 7. 9. An integrated circuit for controlling a camera, a connection unit for transmitting and receiving an electric signal, a display unit for displaying a state of the camera to the outside, a driving circuit for driving an actuator or a light emitting element of the camera, A printed circuit board on which the integrated circuit, the connection unit, and the display unit are collectively mounted at a predetermined position, and the drive circuit is disposed at a position separated by a predetermined length from the predetermined position at which the integrated circuit is mounted. Features camera. 10. The camera according to claim 9, wherein the printed circuit board is provided on an upper side of a main body of the camera, and the display means is arranged so as to face the upper surface side of the camera.
The camera according to. 11. The printed circuit board is a double-sided printed circuit board, wherein the display means and the integrated circuit mounted on the connection portion are mounted on opposite sides of the printed circuit board substantially opposite to each other. The camera according to claim 9. 12. The camera according to claim 9, wherein the integrated circuit, the connection unit, and the display unit provided on the printed circuit board are centrally mounted at a substantially central portion of the camera. 13. The camera according to claim 9, wherein in the printed circuit board, the drive circuit is disposed at a position separated by a predetermined distance from a substantially central portion of the camera in a lateral direction. 14. The camera according to claim 9, wherein the integrated circuit is a CPU and / or an interface IC. 15. The driving circuit according to claim 9, wherein the driving circuit includes a power transistor element.
The camera according to 2, 13, or 14. 16. The printed circuit board according to claim 9, wherein the printed circuit board is a rigid printed circuit board.
The camera according to 2, 13, 14, or 15. 17. A first printed circuit board having a camera sensor or switch signal line, an integrated circuit for controlling the camera, and a connect electrically connected to the signal line provided on the first printed circuit board. And a second printed circuit board having a driving circuit for driving an actuator or a light emitting element of a camera, wherein the second printed circuit board has the integrated circuit and the connect unit concentrated at a predetermined position. A camera mounted, wherein the drive circuit is disposed at a position separated by a predetermined length from the predetermined position where the centralized mounting is performed. 18. The camera according to claim 17, wherein the sensor provided on the first printed circuit board is an autofocus sensor. 19. The auto-focus sensor,
19. The camera according to claim 18, wherein the camera is a PSD. 20. The sensor according to claim 1, wherein the sensor provided on the first printed circuit board is a photometric element.
8. The camera according to 7.