JP2832445B2 - Camera mode setting device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a camera mode setting device.

2. Description of the Related Art Some cameras have various shooting modes such as a normal shooting mode, a close-up shooting mode, a multiple exposure mode, and a TV priority mode.

As described above, in a camera having various photographing modes, for example, as disclosed in Japanese Patent Application Laid-Open Nos. 61-238032 and 61-238033, a less frequently used multiple exposure mode is a normal photographing mode. Regardless of such a change operation, 2
It is set by pressing and holding two mode switches simultaneously for a predetermined time.

The set photographing modes are released by changing the mode or turning off all the mode switches.

[Problems to be Solved by the Invention] In the mode setting device as described above, the photographing mode once set is changed only by a mode change performed thereafter. For this reason, if it is rarely used, for example, if it is set to a multiple exposure mode,
By performing a troublesome release operation, it becomes possible for the first time to perform shooting in a desired different mode, and it is difficult to cope with a case where the operation is troublesome and a quick shooting is desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a camera mode setting device for detecting a camera being in a portable state, thereby selecting a predetermined specific shooting mode, and improving a quick shooting performance. It is intended to be.

[Means for Solving the Problems] To solve the above problems, a camera mode setting device of the present invention detects a portable state and outputs a signal, and receives a signal to set a specific shooting mode. It is characterized by having means for selecting and means for holding the selected shooting mode.

[Operation] When the camera according to the present invention detects the portable state, a specific shooting mode set in advance is selected, and the selected shooting mode is held. For this reason, if a frequently used shooting mode is set in advance, the most frequently used shooting mode is set by switching the camera to a portable state, and an operation for setting a special shooting mode is performed. No, you can shoot immediately.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6 show a camera to which the present invention is applied. FIG. 1 is a front view of the camera, FIG. 2 is a rear view thereof, and FIG.
FIG. 4 is a plan view, FIG. 4 is a sectional view taken along line IV-IV of FIG. 1, FIG. 5 is a view showing a viewfinder display, and FIG. 6 is a view showing a back cover display.

Configuration of Camera Body As shown in FIG. 4, the camera includes a main body 10, a front cover 20, a decorative panel 30, and a back cover 40. The decorative panel 3 is engaged with the front side of the front cover 20, and the front cover 20 is It is engaged and screwed so as to cover the main body 10. Back cover 40 and battery cover 41
Is integrally attached to the bearing portion 42a of the main body mounting body 42 via the hinge shaft 43, and engages the main body mounting body 42 with the main body 10,
Furthermore, it is fixed with screws.

The body 10 has an unexposed film storage room 14 with an image frame 13
The cartridge 1 is stored in the unexposed film storage chamber 14, and the exposed film F is wound around a reel 16 provided in the exposure film storage chamber 15.

A front base plate 17 is provided at the center of the main body 10, and a lens barrel frame 22 having a photographing lens 50 is provided on the front base plate 17.
It is provided so as to be movable in the optical axis direction integrally with 51, and collapses.

Further, a release button 2, a close-up button 3, and a main switch button 4 are provided on the upper surface of the front cover 20.

Photographing Lens The photographing lens 50 is composed of four groups and is composed of four lenses. The lens 50 is mounted on the lens barrel 22 via supports 52 and 53, and the lens barrel 22 is mounted on the lens barrel 51. As the photographing lens 50, a between-type in which a shutter 54 is arranged between the lenses is used.

Viewfinder mechanism As the viewfinder mechanism, an Albada-type bright frame see-through viewfinder is used. This finder 60
5 is provided with a display as shown in FIG. 5, a shooting range frame 61, 62, an AF frame 63, a distance measurement completion (lighting), a distance warning (flashing) display 64, and a close-up mode (lighting) display. 65, Blitz mark 66, etc. are provided.

Focus Adjustment Mechanism The focus adjustment mechanism changes the distance between the taking lens 50 and the film surface in accordance with the distance to the subject, and adjusts the focus so that an image of the subject is correctly formed on the film surface. A projecting AF lens 70 and a receiving AF lens 71 are provided above the front base plate 17 as a distance measuring mechanism for this focus adjustment, and are covered with AF windows 72 and 73 of the decorative panel 30. Distance is adopted. The lens barrel 51 holding the taking lens 50 is extended by driving a motor 170,
Focus adjustment is performed by driving the lens group straight. Lens barrel 51
Has a photographing window 55 on the front side, and the photographing window 55 is covered with a lens barrier 140 to protect the photographing lens 50 inside.

The lens barrier 140 starts to open when the lens barrel 51 is extended, fully opens when it reaches the initial position for normal shooting, and retracts completely when the lens barrel 51 reaches the collapsing stop position. ing. That is, when the lens barrel 51 is retracted and the camera is in a portable state, the lens barrier 140 has a completely closed structure.

Shutter mechanism The shutter mechanism has a function of temporally providing a necessary exposure amount to the film and a function of blocking unnecessary light except for the exposure time. The shutter motor 80 is driven to open and close the shutter 54.
Reference numeral 54 denotes a program shutter, and a self-timer is used.

To operate the self-timer, operate the mode switching button SS1 to be described later to switch to the self-timer mode.
The shutter 54 opens and closes about 10 seconds after the release button 2 is pressed. While the self-timer is running, the self-timer display LED SLED214
Lights for about 7 seconds and then flashes for about 3 seconds. Shutter 54
When the opening / closing operation is completed, the self-timer mode is automatically released, and the mode returns to the automatic flash light emission mode. If the user wants to release the self-timer mode during the operation of the self-timer, he or she can press the main switch button 4.

Automatic exposure mechanism In order to give an appropriate exposure to the film, the exposure is adjusted by measuring the brightness of the light on the subject side that fits on the screen. A CdS (cadmium sulfide) light receiving element 90 is used to convert an electric signal according to the amount of incident light. This light receiving element 90 is attached to the front base plate 17,
It is covered with the AE light receiving window 91 of the decorative panel 30. Exposure control interlocking range is film sensitivity ISO100, subject brightness EV value 5
If the EV value is 9 or less, it is automatically switched to automatic flash emission.

This camera uses a patrone film with a DX code. When the film is inserted into the camera, the film speed is automatically set to ISO 50-3200, and all non-DX films are automatically set to ISO 100.

Strobe mechanism The flash tube 100 of the strobe mechanism is fixed above the unexposed film chamber 14 of the main body 10, and the window 101 of the decorative panel 30
Covered with. In the automatic flash mode,
Light is emitted automatically when the brightness of the subject is lower than a predetermined value, and is always automatically charged. The capacitor 7 of the charging circuit is arranged close to the exposure film storage chamber 15 of the main body 10.

Film winding mechanism The film winding mechanism employs an automatic winding system using a motor 110, and is driven via a winding unit 111. This is an auto-loading method which is started by operating the release button 2 after the back cover 40 is closed.

Film rewinding mechanism The film rewinding mechanism automatically rewinds when the last frame has been photographed, and stops automatically when rewinding is completed. Rewinding decrements the film counter and displays the film feed mark in the reverse direction.

In the case of DX film, rewinding stops automatically after winding the leading end of the film into the patrone, and in the case of non-DX film, stopping with leaving the leading end of the film.

The back cover 40 has a control display unit 120 for auto date and shooting information.
Are provided via a back cover base plate 44, and a film checking window 6 is further formed. In addition, the LCD display panel 130 of the back cover 40 is provided with a date display unit 121 and a shooting information display unit 122. Further, there are provided a mode switching button SS1 and a date mode switching button SS2, a correction location selection button SS3 for selecting a correction location for the date, hour and minute, and an addition button SS4 for adding the date display.

Each time the mode switching button SS1 is pressed, the automatic light emission mode, the forced light emission mode, the non-light emission mode, and the self-timer mode are cyclically switched in this order. In the automatic flash mode, when the subject brightness is equal to or lower than a predetermined brightness, the flash automatically emits light. In the forced flash mode, the flash always emits light every time a picture is taken.

In the non-emission mode, the mode switching button SS1
If the button is kept pressed, the mode is switched to the halfway rewinding mode via the self-timer mode, and the film rewinding is started halfway by pressing the release button 2 while pressing the mode switching button SS1. When the rewinding is completed, the mode automatically returns to the flash automatic emission mode.

One 3V lithium battery 8 is stored in the battery compartment 18 of the power supply body 10 and can be replaced by opening and closing the battery cover 41 by the user. Further, one 3V coin battery 9 functioning as an auto date function and as a backup power source for the main power source is provided in the battery storage chamber 45 of the back cover 40.

Automatic date A digital clock of a liquid crystal display is built in the control display unit 120 as an automatic date, and the date display unit 121 provided on the LCD unit decorative plate 130 of the back cover 40 displays “date”, “date”, and “date”. , “Day / month / year”, “date / time / minute” or “OFF mode” is displayed, and the date mode switching button SS
2. The adjustment is made by operating the correction location selection button SS3 for selecting the correction location for the date, hour and minute, and the addition button SS4 for adding the date display.

Photographing Information Display As shown in FIG. 6, the photographing information display section 122 of the back cover 40 is provided with a battery remaining amount display 122a, a film counter 122b, and a film feed display 122c. In addition, the flash is being charged 122d, the self-timer mode 122e, the automatic flash mode 122f, the forced flash mode 122g, and the non-flash mode 122h.
Are switched and displayed, and both displays are liquid crystal displays.

FIGS. 7 to 10 show an operating mechanism of the lens barrel. FIG. 7 is a sectional view of the lens barrel, FIG. 8 is a sectional view taken along line VIII-VIII of FIG. 7, and FIG. Is a sectional view taken along line IX-IX in FIG. 7, and FIG. 10 is a sectional view taken along line XX in FIG.

As shown in FIG. 8, a support frame 21 is provided on the front base plate 17, and a lens barrel 51 is meshed on the support frame 21 so as to be able to advance and retreat in the optical axis direction, and the lens barrel 51 is collapsed. Further, the lens barrel frame 22 is fixed to the lens barrel 51, and both operate integrally.

The support portion 22a formed at the lower end of the lens barrel frame 22 is slidably supported on the guide shaft 158 via a bearing 157,
As shown in FIG. 9, it is movably supported on a drive shaft 160 via a female screw bearing 159. One end of the guide shaft 158 is fixed to the holding plate 161, and the other end is fixed to the front base plate 17.
One end of the lens barrel is rotatably supported by a holding plate 161 fixed to the front base plate 17, and the other end is rotatably supported by the front base plate 17 via a bearing 162. 22 performs DC motion in the direction of the optical axis. Support for lens barrel 22
The tip end portion 163a of the position regulating member 163 inserted into the front base plate 17 is in contact with 22a. The position regulating member 163 is supported by the front base plate 17 via a spring 164, and the drive shaft 1
The backlash between 60 and the female screw bearing 159 of the lens barrel frame 22 is absorbed so that the lens barrel frame 22 operates accurately.
The female screw bearing 159 is supported by a pressing plate 165 fixed to the support portion 22a of the lens barrel frame 22, and the female screw bearing 15 is supported by the pressing plate 165.
9 is prevented from falling out of the lens barrel 22.

A drive gear 166 is provided on the drive shaft 160.
166 meshes with the output gear 171 of the motor 170 via intermediate gears 167, 168, 169 as shown in FIG.
, The power of these intermediate gears 167, 168,
The transmission is transmitted to the drive gear 166 via
Rotate 160.

The motor 170 is provided with rotating blades 172, and the number of rotations is detected by a photocoupler 173, and is used as control information for moving the lens barrel 51 in the optical axis direction. The photocoupler is a detection element in which a light source and a light receiving element are arranged to face each other, and detects whether there is an opaque object between the light source and the light receiving element.

As shown in FIG. 8, an operating member 174 is provided on the mounting portion 22a of the barrel frame 22, and the operating member 174 has a contact piece.
175 are provided. The contact piece 175 slides on the control board 176 in conjunction with the lens barrel 51, as shown in FIGS. The control board 176 is attached to the wall 17b of the front base plate 17, and the control board 176 is provided with a power supply contact 175b and camera body measuring contacts 175c to 175g,
When the lens barrel 51 is extended in the optical axis direction, the contact piece 175 is retracted at the stop position Y1, the initial position Y2 for normal photography, the extension amount count base point Y3 for normal photography, the initial position Y4 for close-up photography, and the extension of close-up photography. Information on the quantity count base point Y5 is provided to the control unit, and these constitute a switch for detecting the position of the taking lens 50. This switch is the camera body side contact 17
Depending on the relationship between 5c and 175g, it functions as a lens position switch or AF trigger switch.

The control board 176 has a protrusion 176a at one end and a front ground plate 17
The other end 176b is engaged between stoppers 177 and 178 of a holding plate 161 fixed to the front base plate 17, and is supported so as to be movable in the optical axis direction. A position adjustment window 176c is formed in the control board 176, and an adjustment bolt 179 is screwed to the wall 17b of the front base plate 17 through the position adjustment window 176c. Mounting shaft 179 of this adjustment bolt 179
The position a is shifted from the center of the head 179b, and the control board 176 moves in the optical axis direction by the rotation of the adjustment bolt 179, and the position is adjusted.

As shown in FIG. 7, a shutter drive mechanism and the like are arranged inside the lens barrel 51. A motor 80 is driven by operating the release button 2, and the power is transmitted from the output gear 81 to the intermediate gear 8
The light is transmitted to the teeth 86a of the shutter ring 86 via 2, 83, 84, 85, and the shutter ring 86 is rotated to open and close the three shutter blades 54c. Each shutter blade 54c is rotatably supported by the lens barrel 51 via a support pin 87, and an engagement hole 54a is formed at the base of the shutter blade 54c. The operating pin 88 fixed to 86 is engaged,
The rotation of the shutter ring 86 causes the shutter blades to rotate.
54c opens and closes.

The shutter ring 86 is set so that its projection 86b always comes into contact with a stopper 89a fixed to the lens barrel 51, and the stopper 89b regulates the position at the time of the opening operation.

A contact piece 54b is formed on the shutter blade 54c, and thereafter the photocoupler 99 detects the piece 54b to perform time management of shutter control and detect a shutter abnormality.

Parallax correction mechanism As shown in FIG. 7 and FIG.
With the support pin 180 as a fulcrum, it rotates in the direction of the arrow in accordance with the extension of the photographing lens 50 with respect to the front ground plate 17 to enable parallax correction.One of the support pins 180 is provided with a light receiving side AF lens 71. A spring 181 is mounted between the support portion 71a and the front base plate 17, and a correction spring 183 is mounted between the support portion 71b and the parallax correction pin 182. The parallax correction pin 182 moves the lens barrel frame 22 in the optical axis direction integrally with the lens barrel 51, so that the correction spring
The light-receiving side AF lens 71 is pushed via 183. A parallax adjustment lever 185 is attached to the upper part of the light receiving side AF lens 71 with a parallax adjustment pin 184, and the projection 71c of the light receiving side AF lens 71 abuts on the parallax adjustment lever 185 to regulate the rotation position. The lens barrel 51 is in the initial position for normal shooting.
While moving between Y2 and the initial position Y4 for close-up shooting, parallax correction for far / far switching is performed.

Control Circuit In the camera of this embodiment, when the release button 2 is pressed, a series of operations relating to photographing is started, and the exposed film is wound up by one frame and the processing is finished. Release switch
S1 is turned on, and in the subsequent stroke, the second release switch S2 is turned on. When the first release switch S1 is turned on, a distance measurement for measuring a subject distance and a photographing preparation operation for photometry for measuring a subject luminance are performed. When the second release switch S2 is turned on, opening and closing of a shutter, film opening and closing are performed. Photographing such as winding up and processing operations after photographing are performed.

In many cases, the shortest photographable distance of a general camera is set to about 0.6 to 1.2 m. However, the camera of this embodiment enables so-called close-up photographing of a subject at a closer distance, thereby enabling a photographable distance range. In order to enlarge the range, a normal shooting mode and a close-up shooting mode are provided. In the normal shooting mode, it is possible to shoot a subject in a range from a predetermined normal shooting close range to infinity (this range is referred to as a normal shooting range). It is possible to shoot a subject at a long distance (this range is called a close-up shooting range), and furthermore, the normal shooting range and the close-up shooting range are made continuous by matching the close-up distance for normal shooting and the close-up shooting distance. However, for example, three shooting modes of a short-distance shooting mode, a middle-distance shooting mode, and a long-distance shooting mode may be provided.
More than one shooting mode may be provided.

The close-up button 3 is a button for switching the photographing mode. When the button is pressed in the normal photographing mode in which the lens barrel 51 is at the initial position Y2 of the normal photographing, the close-up switch is turned on, and the lens barrel 51 is brought into close-up photographing. Reaches the initial position Y4 and stops, and the camera switches to the close-up shooting mode. When the close-up button 3 is pressed while the camera is in the close-up shooting mode, the close-up switch is turned on, and the lens barrel 51 retreats to the initial position for normal shooting.
When it reaches Y2 and stops, the camera switches to the normal shooting mode.

When the lens barrel 51 is in the retracted stop position Y1 and the camera is in the mobile posture, when the main switch button 4 is pressed, the main switch is turned on, the power is excited, and the MAINCPU 201 described later starts to operate. Then, a power hold for holding the excited state of the power supply is performed, the lens barrel 51 is extended and reaches the initial position Y2 for normal photographing and stops, the camera enters the normal photographing mode, and the power hold is released. When the camera is in the normal shooting mode or the close-up shooting mode, when the main switch button 4 is pressed, the main switch is turned on, the power is held in the same manner as described above, the lens barrel 51 is retracted, and the lens barrel 51 is retracted to the stop position Y1. When the camera reaches the position and stops, the camera assumes the mobile posture and the power hold is released. In addition, the lens barrier 140 covering the shooting window 55 becomes saturated with the extension of the lens barrel 51, and the lens barrier 140 closes and covers the shooting window 55 with the retreat of the lens barrel 51, thereby closing the shooting lens 50. It has a protective structure. Further, when the camera is in the portable posture, other operations except for the automatic loading of the film and the rewinding of the film in the middle cannot be performed.

FIG. 11 is a schematic circuit block diagram of a camera to which the present invention is applied.

The camera uses a MAIN CPU 201 and a SUB CPU 202, and information is exchanged alternately through a serial interface. The MAINCPU 201 executes the control sequence of the drive system that requires a large current and the control sequence of the photographing operation of the camera.
Reference numeral 2 drives the photographing information display unit 122 of the back cover unit 203, and also provides switch information to the MAINCPU 201 to cause the MAINCPU 201 to perform various controls. In this SUBCPU202, shooting lens 5
The portable mode of the camera is detected from the position information of 0, and the initial mode is selected. This camera has a normal shooting mode, a close-up shooting mode, an automatic flash mode, a forced flash mode, a non-flash mode, a self-timer mode, and the like. In general, the most frequently used modes are the normal shooting mode and the automatic light emission mode. Therefore, this mode is selected as the initial mode, but another mode may be selected. The state of the selected initial mode is maintained, and the initial mode is displayed to prepare for the next photographing.

A power supply is connected to the DC-DC converter 204, and the DC-DC converter 204 is started by power control from the SUB CPU 202 which is started by turning on the main switch or turning on the first release switch S1. by this,
The voltage Vdd is supplied to the MAINCPU 201, and the MAINCPU 201 starts. A voltage Vcc is supplied from the DC-DC converter 204 to control switches other than the release switches S1 and S2, the main switch, the close-up switch and the mode switch, and a voltage Vdd is supplied to each CPU as a power source. Is the power supply of the SUBCPU 202 and the strobe unit, and the voltage Vb 'of the lithium battery 8 is the power supply of the drive system requiring a large current. Also, the strobe unit 20
A DC-DC converter different from 204 is provided in 5.

The activated MAINCPU 201 has battery check information BC, photometric information AV, and temperature information for motor driver temperature compensation.
TH and shutter trigger delay time information STD for correcting shutter opening are input as analog information 206.
The battery check information BC is transferred to the SUBCPU 202 via the serial interface, and the SUBCPU 202 displays this information as the remaining battery level display 122a. In addition, MAIN
The CPU 201 has a DX switch, lens position switch and
Switch information 207 of the AF trigger switch is input.

Also, the distance measurement information is fetched from the AF unit 208 as an analog signal, and if the distance measurement result is within the photographable distance range according to the photographing mode selected at that time, MA
The AFLED is turned on by the display control in F by INCPU201, and in the case of close-up shooting mode, the CULED is turned on.
Furthermore, when the subject brightness is less than the predetermined value in the automatic flash mode
The LBLEDs are turned on, and these are the F display 2
09, distance measurement completed, distance warning display 64, close-up mode display 65, blitz mark 66 in viewfinder
Respectively. Also, the AFLED flashes when the result of distance measurement is out of the available shooting range according to the shooting mode selected at that time, the LBLED lights up in the forced flash mode, and the subject brightness is specified in the non-flash mode. Flashes when the value is less than the value.

When the second release switch S2 is turned on, the MAIN CPU 201 performs lens motor control for controlling the lens motor driver 210 based on the distance measurement information, drives the motor 170, extends the photographing lens 50, and stops the photographing lens 50 at a predetermined position. At this time, the photographing lens 50 is obtained from the trigger information of the AF trigger switch that comes out when the contact piece 175 comes into contact with the main body measuring point 175e or 175G and the motor rotation speed information by the photocoupler 173.
Is controlled. Since the taking lens 50 is extended in accordance with the distance measurement information, the extension amount count base point Y3 of the taking lens 50 or the extending amount
Y5 (depending on the selected photographing mode) is detected, and control is performed to stop the motor 170 when the motor 170 rotates a predetermined number from the count base point Y3 or Y5. Then, shutter motor control for controlling the shutter motor driver 211 is performed in accordance with the photometric information AV, and the motor 80 is driven to operate the shutter 54 to expose the film. At this time, the opening and closing of the shutter 54 is detected by the photocoupler 99.

When this exposure is completed, the lens motor driver 21
0 is controlled, the photographic lens 50 is returned to the initial position Y2 or Y4 (depending on the selected photographic mode), the film motor control for controlling the film motor driver 212 is performed, and the motor 110 is driven to wind the film. . At this time, while reading the switch information from the perforation switch 213, it is confirmed whether or not the film has been wound by one frame.

A charge signal is sent from the SUBCPU 202 to the strobe unit 205, and a charge completion signal is sent from the strobe unit 205 to the SUBCP
It is sent to U202, and EF control is performed between the two in this way. Flash control of the strobe unit 205 is performed by the MAIN CPU 201, and the flash tube 100 emits light. The self-timer display SLED 214 is controlled by an external display control of the SUB CPU 202.

SUBCPU 202 is a coin battery, DC-DC
The backup circuit 215 and the reset circuit 2 are driven by the voltage Vdd from the converter 204 and the voltage Vb from the lithium battery 8.
Driven through 16.

Further, switch information 217 such as a release switch, a main switch, a close-up switch, and a back cover switch is input to the SUBCPU 202, and the back cover unit 203 has a date module 218. An LCD which receives switch information 219 from a switch and a set switch and outputs a liquid crystal display drive signal for imprinting a date and displaying a date.
Drive. The SUBCPU 202 is a back cover unit 203
It outputs signals for driving the counter and other liquid crystal displays disposed in the LCD, and performs counter LCD driving. In addition, a mode changeover switch 220 is provided on the back cover unit 203,
The mode can be switched by manual operation.

Control Circuit Operation Sequence FIG. 12 shows an operation sequence of the circuit block of the present invention, which is divided into a MAINCPU 201 sequence and a SUBCPU 202 sequence.

The SUBCPU202 is initially reset in the IRSub routine by the reset signal ACL.
= 1 monitoring information input to the microcomputer. Then, when the first release switch S1 is turned on in the determination of S1 = 1, an error of the film auto load is determined in the determination of the flag ΦAL = 1, and when the first release switch S1 is turned on and there is an auto load error, the ALSub routine ( In 2), an auto load error is displayed and the processing ends. Also,
If the flag .PHI.REW-END = 1 is determined and the film rewinding has been completed, the process proceeds to the REWSub routine (3) to display the end of film rewinding. Even if the first release switch S1 is ON, the back cover is closed. If you do not open it will not work. Further, when the flag ΦSTT = 1 is determined and the shutter is abnormal, the signal branches off so as not to receive a signal.

If these flags are not set, the power is turned on with the power held by PH ← 1, and the MAINCPU 201 is started. When MAINCPU201 starts, I / OSET, RAMCLR
The O port is set and the RAM is cleared, the battery check is performed by the BCSub routine, and the DX switch information is read by the DXSub routine.

This information is read, and the battery check information, DX switch information, and test information are converted into 4-bit information by using the serial interface in the SOBC.
It is serially transferred to the PU 202 and displays the remaining battery level in the BC display Sub routine. Here, if the remaining amount of the battery 8 is equal to or less than the predetermined value, the operation is stopped as an error E.

When the remaining amount of the battery 8 exceeds a predetermined value, the SUBC
At So of PU 202, information of the LD2Sub instruction is sent to shift to the LD2Sub routine of MAINCPU 201, and branch 1 determination is made at SI of MAINCPU 201. Moving to the LD2Sub routine,
Looking at the lens position, the stop position of the retracted position and the like are determined by the flag φSEP determination.

In the LD2Sub routine, when the lens position is the initial position for normal shooting, the MAINCPU 201 shifts to SI branch 1 determination. On the other hand, in the SUBCPU 202, if the lens position is the initial position of the normal shooting and the rewinding is completed by the flag ΦREW = 1 determination, the REWSub instruction information is set to MAINCP by So.
Transfer to U201 and end.

If the back cover is open according to the back cover switch information in the Sb = 0 determination, the process proceeds to the WSub routine with the flag ΦALB = 1 determination and transfers the WSub instruction line information to the SI branch 2 determination of the MAINCPU 201. If the counter is zero when the flag ΦC = 0, the loaded film is DX when the flag ΦDX = 1.
It determines whether or not the film is a film. In the case of a non-DX film, it transfers the ALSub instruction information to the SI branch 2 determination of the MAINCPU 201 in So, and the SUBCPU 202 waits for an auto load. , The operation of the auto load is performed.

When the film is counted up, or when the counter is zero and the DX film is used, the information transferred by the LD2Sub-retin is judged. When ΦSEP = 11, the lens barrel 51 is used for normal or close-up photographing. Since the lens barrel 51 is at the stop position for collapsing when ΦSEP = 00, the photographing operation can be completed because ΦSEP = 0.
In the case of 1, since the lens barrel 51 is extended, but stopped at an undefined position, the lens barrel 51 is retracted to the collapsing stop position.

If the lens barrel 51 is at the initial position for normal shooting or close-up shooting, if the first release switch S1 is OFF at S1 = 1 determination, the strobe main capacitor is charged by the CHGSub routine, and if the first release switch S1 is ON, Is a flag .PHI.TEST = 1 determination, a test process is performed when the test mode is set, and a transfer is performed by So at the serial interface when the test mode is not set. Here, the main routine instruction of MainRout, mode information of flag ΦMODE, flag ΦMODE
The C counter information is 4-bit information and the MAINCPU201 SI
Is transferred to the branch 2 determination.

The SUBCPU202 waits in the AFSub routine, and the MAINCPU2
In step 01, the branch 2 is determined by the SI, and when the process proceeds to the AESub routine, the photometric information is read. Further, the distance measurement information is read by the AFSub routine.
To the AFSub routine. The information of this distance measurement is R [A
F] or R [CAF], where R [AF] is RAM information for distance measurement in the normal shooting mode, and R [CAF] is RA for distance measurement in the close-up shooting mode.
In each of the M information, four bits are repeatedly transmitted twice.

Then, the SUBCPU 202 is waiting for the second release switch S2 to be turned on in the determination of S2 = 1, and the MAINCPU 201
In the FLEDSub routine, the AF LED for distance measurement is turned on, the CULED is turned on in the close-up shooting mode, the LBLED is turned on when the subject brightness is lower than the predetermined value in the automatic flash mode, or in the forced flash mode, and the AFLED is turned on. Blinks when the result of distance measurement is closer or farther than the recordable range,
The LBLED flashes and waits in the non-emission mode when the subject brightness is lower than a predetermined value.

When the SUBCPU 202 determines that S2 = 1, the second release switch S2
Is turned on, the serial transfer port of Sin changes the normal low state to the high state when Sin ← 1, and the information of Sin = 1 is transferred to MAINC.
The signal is sent to the PU 201, the SUBCPU 202 waits for 16 ms, sets Sin ← 0, and reliably shifts to the SI from the FLEDSub routine of the MAINCPU 201. Then, the flag ΦMODE determination determines whether or not the self-timer mode is set.

If not in self-timer mode, use So [R [ST
[D] Information is transferred to the MAIN CPU 201 in 8 bits. This STD
The information is relay trigger film 8-bit information of the shutter trigger. After winding the film, information is exchanged by the WSub routine. The information is read by the WSub routine of the MAINCPU201 and transferred to the SUBCPU202. And this information is sent to the MAIN CPU 201. In the case of the self-timer mode, R [STD] is transferred after shifting to the SELFSub routine.

When this STD information is sent to the MAIN CPU 201, it exits SI and
The CPU 202 waits in the SDSub routine, and the MAINCPU 201 sets DATET ← 1 at ISO 400 or higher, depending on whether the zone is ISO zone 4 or higher, and switches the lighting time for imprinting. Then, by setting DATEX ← 1, this signal is output for 5 ms as a signal for emitting light for imprinting a date. When this signal is output, the light is emitted for about several tens of milliseconds, and the date is imprinted.

When this is completed, DATEX ← 0 and DATET ← 0 are initialized, the photographic lens 50 is extended in the AFLDSub routine, and the shutter 54 is opened and closed in the SDSub routine. When the shutter 54 is being opened or closed, the shutter 54
If no operation signal is received, the flag ΦSTT is output. If a failure occurs in the process of opening or closing the shutter, the flag ΦSTT is set to 1, and this information is sent to the SUBCPU 202 to determine the trouble.

If there is no abnormality, it is sent with the flag ΦSTT = 0, and MAIC
In PU201, return the shooting lens 50 in the LDRSub routine and
The process moves to the b routine and the film is wound up.

The SUBCPU 202 determines whether or not the mode is the self-time mode using the flag ΦMODE.
Move on to film winding in the WSub routine. In the case of the self-timer mode, the mode display is set to the automatic light-emitting mode, the flag φMODE is set to the automatic light-emitting mode, and then the process proceeds to the winding of the WSub-Litin film.

The above operation sequence is performed, but the SUBCPU
At 202, after the operation is started from the start and before the first release switch S1 is pressed, the mode switch is determined to be ON or OFF in the MODE = 1 determination.
If it is ON, the shutter trouble is determined by the flag ΦSTT = 1, and no signal is received thereafter if it is abnormal. If normal, the mode display is switched. Further, mode information is switched by the flag ΦMODE, and the self-timer mode is determined by the flag ΦMODE. If the mode is not the self-timer mode, the mode switch is released by the MODE = 0 determination. And returns to MODE = 1 determination again.

In the self-timer mode, the timer is set to 1 by T ← 1s
If the second is set and the mode switch is ON for 1 second or longer in MODE = 1 determination, the feed display is retracted in the Tover determination, the self display is turned off, and the rewind display blinks. Then, in this blinking state, when the second release switch S2 is turned on by the determination of S2 = 1, PH ← 1, ΦAL ← 0, and MAINCP
Activate U201, restore the feed display, set the automatic flash mode, turn off the feed display, display the battery tick in the BC display Sub routine, and use RE to send the REWSub instruction information to MAINCP.
Transfers serially to U201 and performs manual rewind of the film in the REWSub routine.

If the second release switch S2 is not turned on, the rewind display is turned off if the mode switch is OFF in the determination of MODE = 1, the feed display is restored, and the automatic light emission mode is displayed. The flag ΦMODE is set to the automatic light emission mode, and the process ends. Mode switch when MODE = 1
If it is ON, it is waiting for the second release switch S2 to be ON.

If the first release switch S1 is OFF in the S1 = 1 determination of the SUBCPU 202, the main switch is turned ON and Scn
When = 1, collapsible switching is performed. Here, the collapse switch flag ΦScu is 0, and PH ← 1 is set to MAINCPU201.
Start Also, turn on the close-up switch
When Scu = 1, close-up collapse switching is performed, and the collapse switch flag is set to ΦScu ← 1.

The flag ΦBC, ΦDX, and ΦTEST information is received from the MAINCPU 201, a battery tick display is performed by the BC display Sub routine, and the LD1Sub instruction and the flag ΦScu information are transferred to the MAINCPU 201 by serial out of So. This information is MAINCPU2
01 is sent to the branch 1 determination of the SI, the lens barrel is driven by the LD1Sub routine, and the flag ΦSEP information is transferred to the SUBCPU 202.
In the LD1Sub routine, the lens position is checked from the flag ΦSEP information. When the flag ΦSEP is 11, the lens barrel 51 is at the initial position of the normal photographing or close-up photographing, and the strobe condenser is charged in the CHGSub routine. When the flag ΦSEP = 00, the lens barrel 51 is at the retracting stop position, and the flag ΦS
At EP = 01, the lens barrel 51 was extended but stopped at an undefined position, so it retracted and was in the retracted stop position, the normal shooting mode was selected, the automatic flash mode was displayed, and the flag φMODE was set to the automatic flash mode. To end.

In the SBSub routine of the SUBCPU 202, the state of the back cover is checked at one-second intervals, and the back cover switch information is used to monitor that the back cover is opened.

Next, the test mode will be described. In this test mode, the camera is checked, and the test is performed using the counter display on the back cover. Flag ΦTEST
When it is determined that S = 1, the test mode is confirmed by setting SLED ← 1 in the test mode, and four types of tests of an automatic light emission mode, a forced light emission mode, a non-light emission mode, and a self-timer mode are performed. TEST in automatic flash mode
1 When the information is transferred and the first release switch S1 is ON, the zone information at the time of photometry is displayed. When the second release switch S2 is turned ON, the shutter is released, and the automatic exposure mechanism can be tested. Both information and exposure information tests are performed.

TEST2 information is transferred in the forced flash mode, and the flash information is read from the DX information. The DX information is displayed for each zone, and a flashmatic control of the aperture value can be performed according to the displayed information. In this test, the counter and the feed display are cleared, SLED is set to 0, and charging is performed in the CHGSub routine. Also, TEST3 information is transferred in the non-emission mode, AF zone information is displayed by the first release switch S1, the lens is driven by the second release switch S2, and the lens is advanced to the AF information. The movement stroke can be known.

The TEST4 information is transferred in the self-timer mode, and a test is performed as to whether the shutter has been opened by the first release switch S1.

These mode tests are canceled by the mode switch.

Further, when the flag ΦSTT = 1 in the SUBCPU 202, the sequence of the symbol C is entered, the transfer segment is retracted, all the segments are blinked for a predetermined time, the lighting is restored, and the first release switch S1 is activated by the S1 = 0 determination. And wait for it to finish.

In the above operation sequence, the sequence from the symbol D turns off the power hold at PH ← 0, waits 200 ms, and returns to S1.
= 0, MODE = 0, Scn = 0, Scu = 0. Also,
The sequence from the symbol E starts from a battery abnormality or the like, sets the flag ΦBC ← 00 to protect the battery, turns off the battery, turns off the power hold in the same manner as described above, and ends.

FIG. 13 is a flowchart of the taking lens extending operation, and FIG. 14 is a time chart of the taking lens extending operation immediately before the AF lens drive.

When the first release switch S1 is ON, whether auto loading is in progress,
After rewinding, determine whether the back cover is open or whether a shutter error has occurred.If these conditions have not occurred, hold the power and perform a battery check.
Code reading and data transfer are performed (steps 1 to 4). A battery check is performed based on the battery information, and a battery warning is issued when the remaining battery charge is equal to or less than a predetermined value.
~ 7). When the remaining battery charge exceeds the predetermined value, the remaining battery charge is displayed, and the lens barrel position is determined (steps 5, 8).

If the lens barrel 51 is not at the collapsing stop position, the initial position for normal photographing, or the initial position for close-up photographing, set a timer to limit the collapsing operation time, turn on PHM and turn on the Vb 'power supply of the large current power supply. Hold, the lens barrel starts collapsing (steps 10 to 12), and it is determined whether or not the lens collapsing stop position has been reached, depending on whether the lens position signal SEP becomes 1 or not. If the lens barrel 51 does not reach the collapsing stop position, the PHM that holds the Vb 'power is turned off, the power hold PH is turned off, and the process ends (steps 13 to 15,
7). When the lens barrel 51 reaches the retracting stop position, a counter for setting the number of pulses is set, and the pulse-shaped lens drive signal AFC by the photocoupler 173 is set.
It is checked whether AFC = 1 or AFC = 0 within a predetermined time, and if AFC = 1 and AFC = 0 within a predetermined time, a countdown is performed to count the number of times to a predetermined number (steps 16 to 24). ). When the number of pulses reaches a predetermined number or when the timer is over in step 22 or 24, the retracting is stopped, the shutter blades are initialized, and the PHM that holds the Vb 'power is turned off (step twenty five
27), and jumps to step 28 of the rewind halfway stop determination.

In step 28, the position of the lens barrel is
The retracting position is the stop position of SEP = 1, the initial position of normal photographing with the lens position signal SNP or SCP = 1, and the initial position of close-up photographing. In this case, it is determined whether or not rewinding has been stopped halfway, and it is checked whether or not rewinding has been stopped halfway. If stopped, rewinding is performed (step 29). When the rewinding is completed, check whether the back cover is open or closed. If the back cover is closed, check whether the film counter display is zero or more than zero (steps 30 and 31). Confirmation is performed, and in the case of DX film, automatic loading is performed (steps 32 and 33).

If the back cover is open, the film counter exceeds zero, or if the film counter is zero and not a DX film, check the lens barrel position information (step 34) and
= 1, that is, when the lens barrel 51 is at the retracted stop position, the power hold is turned off and the process is terminated (step 35).

If the lens barrel 51 is not at the collapsing stop position, the initial position for normal photographing, or the initial position for close-up photographing, the initial mode is set and displayed, the power hold is turned off, and the process ends (steps 36 and 7).

If SNP or SCP = 1 and the lens barrel 51 is at the initial position for normal shooting or the initial position for close-up shooting, it is determined whether the first release switch S1 is OFF (step 37). The main capacitor of the strobe is charged (step 38). If it is not OFF, check the test mode. If it is in the test mode, perform the camera test (step
39, 40) If not in the test mode, photometry, normal photography or close-up photography distance measurement is performed, and display in the viewfinder is performed based on this information (steps 41 to 43).

Next, it is determined whether or not the second release switch S2 is ON. If the second release switch S2 is not ON and the first release switch S1 is not ON, the strobe condenser is charged (steps 44 to 44).
46) When the first release switch S1 is ON, the second
It is determined whether or not the release switch S2 is ON. If the second release switch is ON, the display in the viewfinder is turned OFF, and in the case of the self mode, the self timer is operated (steps 47 to 49). If not in the self mode, a date light emission signal is output, the Vb 'power supply of the large current system is held, and the AF counter is set (steps 50 to 52). Then, the AF lens drive for extending the photographing lens 50 to the in-focus position is started, and a timer for limiting the lens extending time is set. It is determined whether or not the normal shooting feed amount count base point or the close shot feed amount count base point has been reached within the time (steps 53 to 56).
If there is an AF lens drive abnormality in which the lens barrel 51 does not reach any of the feeding amount count base points within a predetermined time,
Jumping to step 57, the collapsing operation similar to that described above is performed. However, after the collapse is stopped, the hold of the Vb 'power supply is released, the power horoscope is released, and the processing ends.

In step 55, when the lens barrel 51 reaches any one of the above-mentioned feeding amount count base points and the AF trigger signal SNAT or SCAT is output, and the AF counter is greater than zero, the lens barrel 51 feeding time is limited. The timer is set, and if the lens drive signal AFC does not become 1 within a predetermined time, the process jumps to step 57 as an AF lens drive abnormality (steps 73 to 75), and the collapse operation similar to the above is performed. If the AFC becomes 1 within the predetermined time, the timer for limiting the lens barrel extension time is set again. If the AFC does not become 0 within the predetermined time, the AF lens drive is determined to be abnormal and the process proceeds to step 57. Jump (Steps 76-7
8) Perform the same collapsing operation as above, and
Becomes zero, the AF counter is counted down (step 79). Subsequently, steps 73 to 80 are repeated until the AF counter becomes zero (step 80).

When the AF counter reaches zero or in step 52
If the AF counter is set to zero, the lens drive motor 170 is switched to constant speed rotation by the governor (step 81), and a predetermined number of pulses is set. Set a counter and set a timer to limit the lens barrel extension time. If the lens drive signal AFC does not equal 1 within the specified time, AF
The process jumps to step 57 as a lens drive abnormality (steps 82 to 85), and performs the same retracting operation as described above. Also, if AFC becomes 1 within the specified time, set a timer to limit the lens barrel extension time, and set the AF within the specified time.
If C does not become 0, the CPU jumps to step 57 as an AF lens drive abnormality (steps 86 to 88), and if AFC becomes 0 within a predetermined time, counts down a counter that sets a predetermined number of pulses ( Steps 89, 90).
Subsequently, steps 83 to 90 are repeated until the counter becomes zero (step 90). When the counter becomes zero, the F lens drive is stopped (step 91). Check that the lens drive monitor signal AFC has stopped,
The shutter is driven to retract the photographing lens 50, and when it reaches the initial position of normal photographing or close-up photographing, the film is wound (steps 92 to 95).

Then, the strobe is charged, the power hold is turned off, and the process ends (steps 96 and 97).

In this embodiment, the portable state of the camera is determined from the position of the photographing lens, but may be detected from the closed state of the lens barrier.

[Effect of the Invention] As described above, according to the present invention, when a portable state is detected, a preset specific photographing mode is selected and the selected photographing mode is held, so that the frequency of use is determined in advance. If a high shooting mode is set, the camera is brought into a portable state, and the shooting mode is frequently used. Therefore, the photographer can immediately perform normal photographing without performing an operation for setting a special photographing mode, and the quick shooting performance is improved.

[Brief description of the drawings]

1 to 6 show a camera to which the present invention is applied. FIG. 1 is a front view of the camera, FIG. 2 is a rear view thereof, and FIG.
FIG. 4 is a plan view, FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 1, FIG. 5 is a view showing a viewfinder display, FIG. 6 is a view showing a back cover display, and FIG. FIG. 8 is a sectional view, and FIG.
9 is IX-IX sectional view of FIG. 7, FIG. 10 is XX sectional view of FIG. 8, FIG. 11 is a schematic circuit block diagram of a camera to which the present invention is applied, FIG. 12 is an operation sequence of the circuit block of the present invention, FIG. 13 is a flowchart of the taking lens extending operation, and FIG. 14 is a time chart of the taking lens extending operation immediately before the AF lens drive. In the figure, reference numeral 10 denotes a main body, 22 denotes a lens frame, 50 denotes a photographing lens, 51 denotes a lens barrel, 201 denotes a MAINCPU, and 202 denotes a SUBCPU.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 7/00-7/28

Claims (1)

(57) [Claims] 1. A system comprising: means for detecting a portable state of a camera and outputting a signal; means for receiving a signal to select a specific photographing mode; and means for holding the selected photographing mode. Characteristic camera mode setting device.