JPH03257441A - Range-finder capable of altering range-finding point for camera - Google Patents

Abstract

PURPOSE:To easily secure moving space, to simplify a structure and to improve operability by turning a range-finding unit with a specified shaft as a fulcrum while interlocking with the actuation of a direction changing means and changing a range-finding direction, thereby altering a range-finding point. CONSTITUTION:By depressing the operation part 13d or 13c of an operation button 13, the left side or the right side of a moving target lever 512 is pressed to rotate a drum 511 clockwise or counterclockwise through a feeding pawl 514 or 513. A range-finding base 504 is turned with a supporting shaft 506 as a fulcrum counterclockwise or clockwise to alter a range-finding photometry direction to a left or right side. The drum 511 is engaged with a position detection lever 530 through a pin 529 to obtain the position information of the base 504. Then, a releasing lever 533 is provided on a supporting shaft 531 and the regulation of the position of the drum 511 is released through a releasing plate 535 by turning off a main switch, and the drum is automatically restored to an initial position in the center by a restoring spring 525.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a distance measuring device capable of changing the distance measuring point of a camera, and more specifically, to a distance measuring device capable of changing the distance measuring point of a camera, and more specifically, a method of changing the distance measuring point of a camera that allows the distance measuring point of a camera to be easily changed. Regarding possible distance measuring devices.

[Prior Art] A camera is equipped with a distance measuring device, which measures the distance to a subject located at a distance measuring point and adjusts the focus.

In this way, since distance measurement is performed by aligning a distance measurement point with a certain object and focus adjustment is performed, objects before and after the distance measurement point are out of focus.

For this reason, some cameras perform distance measurement on a predetermined subject by allowing the distance measurement point (target) to be changed by the photographer's operation.

This distance measurement method is called the moving target method.

[Problems to be Solved by the Invention] To change this distance measurement point, it is necessary to change the direction of the distance measurement unit. Incidentally, the distance measuring unit is installed as close to the photographic lens as possible, for example, in order to reduce variation and improve distance measurement accuracy, but the mechanism for moving the distance measuring unit is complicated. , it is difficult to secure a space for arrangement, and there are problems such as hindering miniaturization of the camera and improvement of operability.

The present invention has been made in view of the above points, and an object of the present invention is to provide a distance measuring device capable of changing the distance measuring point of a camera, which can easily change the distance measuring point with a simple mechanism.

[Means for Solving the Problem] In order to solve the problem, the invention according to claim 1 includes a distance measuring unit having a distance measuring device for detecting a subject distance;
a distance measuring unit support means that allows the distance measuring unit to rotate about a predetermined axis as a fulcrum to change the ranging direction; a direction converting means that is connected to the distance measuring unit and changes the ranging direction; It is characterized by comprising a feeding means for moving the means in a predetermined direction, and a holding means for holding the movement position of the direction changing means by the feeding means.

The invention as set forth in claim 2 is characterized by comprising a release means for releasing the holding of the holding means and returning the direction changing means to the initial position in conjunction with an off operation of a main switch of the camera.

[Operation] In the invention of claim 1, the direction changing means is actuated in a predetermined direction by the feeding means, the movement position of this direction changing means is held by the holding means, and the moving position of the direction changing means is held in conjunction with the operation of this direction changing means. The ranging unit rotates around the axis to change the ranging direction and change the ranging point. In this way, since the distance measuring unit rotates about a predetermined axis as a fulcrum, it is easy to secure a movement space. Furthermore, the direction of this distance measuring unit is changed by the direction changing means, and the structure for moving the distance measuring unit is simple, and the operability is improved.

Further, in the invention as set forth in claim 2, when the main switch of the camera is turned off, the release means is operated in conjunction with this to release the holding of the holding means and return the direction changing means to the initial position. In this way, the distance measuring unit returns to the initial position when the use of the camera is finished, so when the camera is used again, the distance measuring unit remains at the initial position, providing good operability.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

1 to 5 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 of the camera, FIG. 3 is a plan view, and FIG. The left side view, FIG. 5 is a right side view, FIG. 6 is a view showing the display in the finder, and FIG. 7 is an enlarged view showing the liquid crystal display.

The camera body camera 1 has a grip part 1b that protrudes in the optical axis direction at both ends of the front part 1a, and the grip part 1b, the ICs on both sides, and the back part 1d are each formed into curved surfaces, so that shooting can be performed easily. It gives a good sense of time hold. In addition, because the finder eyepiece window 10 is placed in the center of the longitudinal direction of the back of the main body 1d, the hand holding the camera does not get in the way and the camera can be held securely, resulting in a shape that is less likely to cause camera shake. There is. Moreover, the operation button 13 and release button 9 can be easily operated while being held.

A lens barrel 2 is provided at the center of the front portion 1a of the camera 1. A finder 3 and a distance measurement projection window 4 are arranged above the lens barrel 2. A strobe light emission window 5 and a distance measurement projection window 4 are arranged on the side of the finder 3. A distance measuring light receiving window 6 is arranged on the side of the distance projecting window 4. Above the distance measuring floodlight window 4 and finder 3 is an LED display section 15.
Three ED display units 15 are provided, and the ED display unit 15 is made to blink at a predetermined timing, for example, in sequence to notify the time at the time of self-photography. Also, L in the direction corresponding to the distance measurement position of the distance measurement device.
By lighting up the ED display section 15, the direction of the moving target can be confirmed from outside the camera. Further, a photometry section 16 is arranged above the lens barrel 2.

A large liquid crystal display section 7 is provided in the upper part 1e of the camera 1, and is adapted to display a large amount of photographing-related information. Furthermore, a main switch 8 and a release button 9 are provided. During the initial stroke of pressing the release button 9, the switch S1 is turned on, and during subsequent strokes, the switch S2 is also turned on.

A back cover constituting the back portion 1d of the camera 1 is provided with a finder eyepiece window 10, a cartridge confirmation window 11, various switch buttons 12, and operation buttons 13. The operation button 13 moves the focal length of the zoom lens toward the telephoto side by pressing the operation section 13a thereof, and moves it toward the wide-angle side by suppressing the operation section 13b.

Also, by pressing the operating section 13d, the direction of the moving target is changed to the left, and the operating section 13c
By pressing , change the direction of the moving target to the right. This operation button 13 is designed to perform two operations: a zooming operation and a moving target operation.

A strap ring 14 for hanging a strap is provided on the side 1c of the camera 1.

Photographic lens) The layered lens uses an inner focus type zoom lens (varifocal lens). The lens configuration used is a four-group zoom lens. The zoom operation is an electric zoom drive method in which the zooming operation is automatically performed by pressing the operation button 13 described above.

Finder: A real-image zoom finder is used. Display in the finder is performed by a display liquid crystal placed on the real image plane in the finder optical path, and a liquid crystal display method is used as shown in FIG.

This figure 6 shows a state in which all segments are lit, and automatic balarax correction is performed to automatically set the field of view based on the focal length information of the photographing lens and the subject distance information detected by the distance measurement operation. A field of view frame 20, a moving target mark 21 that lights up a position corresponding to the distance measurement position of a distance measurement device whose distance measurement position can be changed, a strobe light emission mark 22, a distance measurement display 23, a camera shake warning mark 24, etc. are displayed. .

As a focusing distance measuring device, infrared light is projected from a light projecting element and irradiated onto a subject via a light projecting lens. 2. Description of the Related Art An infrared active type distance measuring device is used in which a light receiving element receives reflected light from a subject via a light receiving lens, and detects a distance to the subject based on the position on the light receiving element where the light is received. This distance measuring device is capable of changing the distance measuring position left and right with respect to the optical axis of the photographing lens, and this method is called a moving target method.

Turning on the switch 31 in the first step of the release button 9 activates the distance measuring device, holds the distance measurement result, and displays the distance measurement result on the distance measurement display 23 in the finder. Further, if the distance is closer than a predetermined distance, a warning is displayed on the distance measurement display 23.

When the switch 52 is turned on, the focus lens is driven to focus based on the distance measurement result. If the distance measurement result is closer than a predetermined distance, the release button is stopped.

The light receiving section of the Kasumisha control photometry device is composed of a two-part silicon photodiode, and has a spot photometry element that measures the center of the photographic screen, and an average photometry element that measures the surrounding area other than the center. Based on the subject brightness information and film sensitivity information detected by these two photometric elements, exposure control suitable for the subject is performed.

Strobe When the strobe device completes winding one frame of film, turns on the main switch, and presses the release button, the current boosted from the power source is automatically stored in the capacitor, and when the capacitor is charged to a predetermined voltage, charging is stopped.

The strobe firing selection modes include an automatic flash mode that determines whether or not the strobe will fire based on subject brightness information, a forced flash mode that fires the strobe regardless of subject brightness information, and a forced flash mode that fires the strobe regardless of subject brightness information. There is a non-light-emitting mode that does not work.

Liquid Crystal Display The display contents of the liquid crystal display section 7 are shown in FIG. 7, and for the sake of explanation, all the displays are in a lit state.

The display 30 is used as a film forward counting type counter 30a. In addition, back cover open display 31, film status display 3
2. Time display 33 showing interval time, exposure time, etc.
, battery level display 34, strobe mode display 35 (automatic flash 35a, forced flash 35b, non-flash 35c), release operation display 36, drive mode display 37 (single shot 37a)
, Continuous shooting 37b, Self-shooting 37゛C5, which is used for self-photography, etc., and takes a picture after a 10-second interval has elapsed after the release operation, and is used mainly to prevent camera shake, and which takes a 3-second interval after the release operation. Short-time self-photographing 37d) in which a photograph is taken after the elapsed time has elapsed), failure display 38, special photographing mode display 39 (INF mode 39a in which the focus lens is forcibly moved to an infinite focus position and photographed without activating the distance measuring means) , NT performing long exposure
GHT mode 39b, 1/ to shoot the TV screen
TV mode 39c, in which the strobe is turned off at 30 seconds, and shooting is carried out; swing mode 39d, in which multiple exposures are performed in which the shutter shutter is opened and closed six times in succession for one frame; and the subject distance is detected and based on this distance information. AZ mode 39e, which automatically zooms the zoom lens to take a bust shot, measures the brightness of a subject with a white background, such as a snowy scene, and corrects it to the positive side as the brightness increases. 5NOW mode 39f that performs exposure compensation to increase the amount of exposure, S POT mode 39g that performs spot metering, +15EV mode 39 that shoots with an exposure 1.5EV over the appropriate exposure.
h, -1.5EV mode 39i to set the exposure 1°5EV below the proper exposure, ME mode 39j for multiple exposure photography where you can set the number of exposures, TE mode 39k for bulb photography where you can set the exposure time, number of shots and INT mode 39j2) for setting the shooting interval and shooting at intervals
etc. will be displayed.

Film Feeding Film feeding is carried out using a 2-auto loading system using a known motor as a drive source, and film feeding is started when the back cover is closed after loading the film, and four-frame blank feeding is performed. In addition, the film is fed using a spool drive system.
The number of pieces is displayed on the counter using a forward calculation method. Rewinding is performed automatically when the film is stretched during film feeding or when the completion of photographing the final frame is detected, or it can also be performed manually by operating a single switch.

Lens barrel structure FIG. 8 is a sectional view of the taking lens barrel, FIG. 9 is a partially cutaway side view of the taking lens barrel, and FIG. 10 is a sectional view of the mechanism that drives the taking lens. 11 is a cross-sectional view taken along the mowing line in FIG. 8, FIG. 12 is a cross-sectional view taken along the mowing line in FIG. 8, and FIG. 13 is a diagram showing signal detection means for shutter blade control.

The lens barrel 2 has a cylindrical fixed mirror l1lii 140 fixed to the front side of the main body of the camera 1.
A plurality of sliding grooves 41 extending in a direction parallel to the lens optical axis α are formed on the inner peripheral surface of the lens. And this fixed lens barrel 40
A cylindrical front sliding frame 42 having a sliding protrusion 42a protruding on the outer peripheral surface that can move along the sliding groove 41 in the direction of the lens optical axis α is disposed inside the front sliding frame 4.
A cylindrical movable lens barrel 43 is fixed to 2. Further, the lens optical axis α is also provided on the inner peripheral surface of the front sliding frame 42.
A plurality of sliding grooves 44 are formed extending in a direction parallel to. Inside the front sliding frame 42, a rear sliding frame 45 is disposed, which has a sliding protrusion 45a projected on its outer circumferential surface that can move along the sliding groove 44 in the direction of the lens optical axis α. A fourth variable magnification lens group 46 consisting of three lenses is incorporated inside the rear side of the rear sliding frame 45, and this fourth variable magnification lens group 46 is screwed onto the inner periphery of the rear sliding frame 45. ring screw 4
It is fixed at 7.

Three lenses are attached to a partition wall 42b that partitions the inside of the front sliding frame 42, and two lenses are attached to a rear holder 48 placed opposite the partition wall 42b. The lenses constitute a third variable power lens group 49a. A spring 50 is provided between the rear side holder 48 and the rear sliding frame 45, and always urges the fourth variable magnification lens group 46 of the rear sliding frame 45 in the direction away from the third variable magnification lens group 49a. ing. Two shutter blades 51 are interposed in the rear holder 48, and the shutter blades 51 are located between the third variable magnification lens group 49a.

A front holder 52 is attached inside the movable lens barrel 43, and a lens holder 53 is screwed onto the front side of the front holder 52 in order to fix the first variable magnification lens group 49b consisting of two lenses. ing. The first variable magnification lens group 49b and the third variable magnification lens group 49a constitute a first to third variable magnification lens system 49, which move together.

A guide groove 54 is formed inside the front side holder 52 in the direction of the lens optical axis α, and a lens holder 56 in which a second variable magnification lens group 55 consisting of three lenses is installed is formed in the guide groove 54. The protrusion 56a is engaged. The support portion 56b of the lens holder 56 is slidably provided on the sleeve 57. The sleeve 57 is slidably inserted in close contact with a guide pin 58 made of stainless steel and provided in the direction of the optical axis α of the lens, thereby eliminating rattling of the lens and improving linearity. This guide pin 58 is supported between the tip of the front side holder 52 and a plate 66 supported by the front sliding frame 42. A coil spring 59 inserted into the guide pin 58 is provided between the support portion 56b of the lens holder 56 and the tip of the front side holder 52, and the second variable power lens group 55
is always urged toward the third variable magnification lens group 49a. A screw shaft 62 is rotatably supported between a bearing 60 provided on the front side holder 52 and a bearing 61 provided on the partition wall portion 42b of the front sliding frame 42, and this screw shaft 62 is connected to the lens optical axis. It is parallel to the α direction. This screw shaft 62
A nut member 63 provided on the support portion 56b of the lens holder 56 is screwed onto the lens holder 56, and by rotation of the screw shaft 52, the lens holder 5
6, the second variable magnification lens group 55 is movable in the direction of the lens optical axis α.

A small gear 64 is fixed to the screw shaft 62, and a large gear 65 is fixed to the shaft of the small gear 64. This large gear 65 meshes with a gear shaft 67 shown in FIG.
Drive pinion 7 of focusing motor 69 via 8
0, and the focusing motor 69 is driven to drive the second variable magnification lens group 55 forward and backward in the direction of the lens optical axis α via a gear mechanism. On the other hand, a large gear 72 provided on a gear shaft 71 meshes with the small gear 64 of the screw shaft 62, and a gear 73a of the stopper member 73 engages with the gear shaft 71.
are engaged with each other, and the stopper part 73b is a stopper member 73 of a concave part 42C formed in the partition wall part 42b of the front sliding frame 42 in a fan shape around the axis of the stopper part 73b.
Rotation is restricted by contacting the end portion in the rotational direction, and movement of the second variable magnification lens group 55 is restricted. These gear mechanisms are supported between the plate 66 and the plate 75 on the partition wall 42b.

A rotating shaft 69a of the focusing motor 69 is provided with three blades 76, and a photo interrupter 77 provided opposite to the three blades 76 controls the focusing motor 69.
Pulse LDPI is obtained by rotation of .

Further, a large gear 78 is provided on the shaft of the gear shaft 71, and meshes with a small float wheel 81 of a rotating shaft 80 rotatably provided on the plate 79. A single blade 82 is provided on the rotating shaft 80. There is. A photo interrupter 83 is provided at a position facing this single blade 82, and a focusing motor 69
A pulse LDP2 is obtained by the rotation of .

The three blades 76 and the single blade 82 are made of polyacetal, which is a light-opaque resin. By forming it from polyacetal, it can be press-fitted onto the rotating shaft 69a of the motor with light pressure, and its position in the rotational direction can be easily adjusted after press-fitting.

As shown in FIG. 9, a cam barrel 90 is attached to the fixed barrel 40 so as to be rotatable around the fixed barrel 40, and a front sliding frame 42 and a movable barrel 43 are attached to the peripheral wall of the cam barrel 90.
The first correction cam groove 91 corrects the amount of movement of the rear sliding frame 45 in the direction of the lens optical axis α and the amount of movement of the rear sliding frame 45 in accordance with the change in magnification. A second correction cam 92 is formed to perform the correction. A front cam bin 93 protruding from the outer circumferential surface of the front sliding frame 42 is formed on the peripheral wall of the fixed lens barrel 40 so as to be movable in the direction of the lens optical axis α according to the rotational movement of the cam barrel 90. It passes through a slot 94 parallel to the axis α and projects into the first correction cam groove 91 . The rear cam bin 95 protruding from the outer peripheral surface of the rear sliding frame 45 corrects the difference between the amount of movement of the magnification adjustment lens of the finder 3 and the amount of movement of the front sliding frame 42 and movable lens barrel 43.
It passes through a slot 96 parallel to the lens optical axis α formed on the peripheral wall of the fixed lens barrel 40 and an escape groove 97 of the front sliding frame 42 and projects into the second correction cam 92 .

A ring gear 98 is provided on the outer peripheral surface of the cam cylinder 90 near the base.
is fixed to the ring gear 98, and a drive pinion 100 of a zoom drive motor 99 fixed to the camera body is connected via a reduction gear train 101. Therefore, when the zoom is operated, the ring gear 98 and the cam barrel 90 are rotated by the zoom drive motor 99 to the wide-angle side or the telephoto side depending on the direction of the operation, and the first to third variable magnification lens systems 49 are extended in the same direction. In addition, the first
The correction position of the fourth variable magnification lens group 46 is automatically determined according to the amount of extension of the three variable magnification lens system 49.

Furthermore, a barrier 103 is provided inside the movable lens barrel 43, and by moving the movable lens barrel 43 from the wide-angle end position to the storage position, the barrier 103 changes from the open state shown in the figure to the closed state shown by the two-dot chain line. to protect the photographic lens in the stored state.

Lens Position Control Next, position control of an inner focus type lens (varifocal lens) will be explained in detail.

FIG. 14 shows a lens movement curve, with the horizontal axis representing the zoom rotation angle and the vertical axis representing the distance from the focal plane. The 1-3rd variable magnification lens system 49 consists of a first variable magnification lens group 49b and a third variable magnification lens group 49a, which are connected and move together. Fourth
The variable magnification lens group 46 is located on the focal plane side, and is linked with the first to third variable magnification lens systems 49 by a zoom cam mechanism, and is moved out while changing the distance between them.

The second variable magnification lens group 55 includes the first variable magnification lens group 49b and the third variable magnification lens group 49b.
It is located between the variable power lens group 49a, and is moved by a focusing motor 69, which is a focusing actuator, to change the distance from the first to third variable power lens systems 49 or the fourth variable power lens group 46.

The zooming control of the fourth variable magnification lens group 46 has a rotation angle of 140 degrees from the wide-angle end to the telephoto end, and is controlled in 24 steps, with one step being set to approximately 6 degrees.

FIG. 15 is a diagram showing the principle of zoom focus.

This figure shows control of the focus lens of the second variable magnification lens group 55.

As described above, the pulse LDPI is obtained from the photointerrupter 77 that detects the rotation of the three blades 76, and this pulse LDPI is used to maintain the accuracy of the focusing resolution, and also to correct the pulse, such as correction for each zoom, etc. used to make the final decision.

Pulse LDP2 is obtained from a photointerrupter 83 that detects the rotation of one blade 82, and this pulse LDP2 is used to determine the rough zoom zone to be moved by zooming and as a trigger pulse to start counting pulse LDP1. Ru. One pulse of this pulse LDP2 is input when 54 pulses of pulse LDPI are input.

Stop positions are set on both sides to mechanically restrict movement of the focus lens, and the focus lens moves between these positions. In the stored state, the focus lens is stopped at the front stopper position. Pulsed LDPI and pulsed LDP
2 controls the focusing motor 69, thereby performing focusing. In the figure, movement to the left is motor reversal, and movement to the right is motor rotation.

The positions of the focus lens indicated by solid lines are wide-angle infinity and telephoto infinity. The position indicated by the broken line is a wide angle of 08m and a telephoto position of 0.
8 m, and the position indicated by the dashed line is the initial movement position of the focus lens, and is held at this position when the camera is in the shooting timing state.

Therefore, when the main switch is turned on, it is in the stored state.
A certain lens barrel is zoomed to the wide angle position, the focusing motor 69 is energized in the reverse direction, and the LDP2 is set to 5.
Count the pulses and stop. At that time, the wide shooting state is reached from the stop position, which is the front end of the focusing lens. The focus lens now moves to the initial movement position for focusing shown by the dashed line, and when the lens barrel is in the wide position, the focus is controlled forward from this position. When zoom driving is performed and the focus lens is moved to the telephoto end, the focus lens is zoom-focused from the wide-angle initial movement position to the telephoto initial movement position. When shooting from this state, the focus is controlled forward. Since this embodiment uses an inner focus, the amount of movement of the focus lens differs between the telephoto side and the wide-angle side depending on the in-focus position for a finite distance. Further, if the focus lens is at a predetermined position on the wide-angle side, the position of the focus lens changes when moving to the telephoto side.

FIG. 16 is a diagram showing the principle of focus position correction.

Inner focus requires focus position correction as shown in FIG. The subject distance is set on the horizontal axis from 0.8 m to infinity, and a numerical value for autofocus is set for this subject 1ffilli. The vertical axis shows the lens extension amount, which is set at about 160 pulses on the wide-angle side and about 180 pulses on the telephoto side.

In this figure, the movement of the focus lens on the telephoto side is shown by a solid line, and the movement on the wide-angle side is shown by a chain line. According to this, even if the infinite position is set on the wide-angle side and the telephoto side, when focusing on a subject of 1.2 m, for example, the amount of extension is different between the telephoto side and the wide-angle side. On the wide-angle side, it is controlled in a narrowed state,
Particularly on the short distance side, the focus lens is further extended to increase the resolving power by controlling the aperture; in other words, the position of the peak resolving power changes depending on the aperture value, so the amount of extension of the focus lens when focusing at short distances is supplemented. .

For focus position correction, the drive pulse is set by PIXAFZ/128 when the subject distance is from 1.2 m to infinity, but when the subject distance is from 0.8 m to 1.2 m.

The extension amount of the telephoto side drive pulse 1 is corrected by P1+P2 (AFZ-128)/64, and the extension amount of the wide-angle side drive pulse is corrected by P1+P2 (AFZ-128)/64+P3.

These pulse data are used to determine the zooming stop position from the wide-angle side to the telephoto side for each of 24 positions.
It is stored in M.

The infinite position is corrected by pulse LDP2 and shift pulse.

FIG. 17 is a diagram showing an encoder for controlling the zoom position, and FIG. 18 is a zoom switch timing chart.

FIG. 17 shows an encoder consisting of a sliding resistance pattern and a sliding contact piece for obtaining signals for zoom control, and the sliding resistance pattern 300 and sliding contact piece 310 are used to obtain a zoom position signal. There is.

The sliding resistance pattern 300 and the sliding contact piece 310 are provided in a portion where the reduction gear train 101 that transmits the power of the zoom drive motor 99 to the cam barrel 9o is arranged.
is fixed to the gear of the reduction gear train 101 so as to be rotatable, and the sliding resistance pattern 300 is arranged on the camera body side facing the sliding contact piece 310. The sliding contact piece 310 rotates as the lens is extended and slides on the sliding resistance pattern 300.

This sliding resistance pattern 300 consists of a first pattern 301, a second pattern 302, a third pattern 303, and a fourth pattern 304 from the inner peripheral side, and the sliding contact piece 310 includes a first contact piece 311, a second contact piece 312 , a third contact piece 313 and a fourth contact piece 314.

The fourth pattern 304 is composed of a sliding resistor, and the wide-angle side end is connected to GND and the telephoto side end is connected to 3V.
The contact piece 311 and the fourth contact piece 314 obtain an analog voltage zoom position signal ZI as shown in FIG. This zoom position signal Zl is A/D converted and converted into E as shown in Table 1.
Zoom zone Zz from table stored in EFROM
It is now possible to obtain In this table, a zoom correction value FZ and a photometry correction value AE are set according to the zoom zone ZZ.

Further, the second pattern 302 and the third pattern 3゜3 form a digital pattern, and the second contact piece 312 and the third pattern 3゜3 form a digital pattern.
With the contact piece 313, a zoom close position signal ZC, a zoom wide-angle end signal ZW, a zoom telephoto end signal ZT, and a digital zoom movement pulse signal ZP as shown in FIG. 18 are obtained.

7. Therefore, when a zoom operation signal is input manually by operating the operation button 13, before the zoom operation that rotates the zoom drive motor 99, the zoom position signal Zl is A/D converted and output as shown in Table 1 below. , get the zoom zone ZZ. This obtains the current position of the focus lens, but when the zoom wide-angle end signal ZW or the zoom telephoto end signal ZT is input,
Zone position [O] or [23
get ko.

Then, the zoom drive motor 99 is driven in accordance with the human power of the zoom operation signal, and after the operation button 13 is pressed, the zoom drive motor 99 is stopped at a predetermined position indicated by the zoom movement pulse signal zP. The zoom position signal ZI thus obtained is A/D converted to obtain a zoom zone zZ.

Focus zone FZ of zoom zone ZZ obtained before zoom operation and zoom zone Z obtained after zoom operation
Find the difference between Z and focus zone FZ.

The focus lens position is changed by zooming and focusing by the value obtained from this difference.

8 Table-I ZI person table Figures 19 (a), (b), (c), and (d) are timing charts of zooming operations.

FIGS. 19(a) and 19(b) show timing charts when zooming up. FIG. 19(a) shows that when the zoom movement pulse signal ZP is 011, the operation part + of the operation button 13 is
When the zoom up signal ZU changes from ON to OFF by canceling the suppression operation 3a, the zoom drive motor is energized from forward rotation to reverse rotation at the timing when the zoom movement pulse signal zP changes from OFF to ON, and zoom movement is started. Stop control is performed to the ON position between pulse signals 3 and 4.

In addition, FIG. 19(b) shows that the zoom movement pulse signal ZP is O.
At N time, by releasing the pressing operation on the operation part 13a of the operation button 13, the zoom up signal ZU changes from ON to O.
When it becomes FF, wait for the zoom movement pulse signal zp to turn OFF, and at the timing when it changes from OFF to ON, the zoom drive motor energization changes from normal rotation energization to reverse rotation energization and stops at the ON position between zoom movement pulse signals 4 and 5. Control.

FIGS. 19(C) and 19(d) show timing charts when zooming down. FIG. 19(C) shows that when the zoom movement pulse signal ZPh<011, when the zoom down signal ZD changes from ON to OFF by releasing the pressing operation on the operation part 13b of the operation button 13, the zoom movement pulse signal ZP turns OFF. At the timing when the zoom drive motor is turned ON, the zoom drive motor is energized from the reverse rotation to the forward rotation, and at the timing when the next zoom movement pulse signal ZP is changed from OFF to ON, the zoom drive motor energization is changed from the forward rotation energization to the reverse rotation energization. Stop control is performed at the ON position between zoom movement pulse signals 8 and 9.

FIG. 19(d) shows that when the zoom movement pulse signal ZP is ON, by releasing the pressing operation on the operating part 13b of the operation button 13, and the zoom down signal ZD changes from ON to OFF, the zoom movement pulse signal zP is turned OFF. Wait for O
At the timing of switching from FF to ON, the zoom drive motor energization changes from reverse energization to forward rotation, and at the timing when the next zoom movement pulse signal ZP changes from OFF to ON, the zoom drive motor energization changes from normal rotation energization to reverse rotation energization. , the zoom movement pulse signal is controlled to stop at the ON position between 7 and 8.

In this manner, the zoom is stopped immediately when the zoom 8 movement pulse signal ZP changes from OFF to ON at the time when the zoom up signal ZU or zoom down signal ZD switch is input during normal rotation drive. By using only the position from OFF to ON in this normal rotation operation, the accuracy of the zoom stop position can be improved.

In addition, before the zoom stops, it is determined that the zoom movement pulse signal ZP switch is in the OFF state, and the motor is controlled at the timing when it is turned ON.
Chattering caused by state control is eliminated. This reduces the overrun of the zoom drive motor 99 during the chattering mask time.
This makes it possible to absorb moving speed dependence, temperature dependence, and individual differences in mechanical mechanisms, thereby improving the stopping accuracy of the zoom drive motor 99.

In addition, during reversal, before stopping, it is driven to the forward rotation side and then stopped. By performing this operation, the backlash that occurs in the aim mechanism can be absorbed, and the stroke to drive the forward rotation side is at least zoomed. Since the movement pulse signal ZP has a certain pulse width, the stroke for driving the motor in the forward direction remains constant even when a voltage change 2 occurs, and the motor stopping accuracy can be improved.

Furthermore, the brakes are applied by reverse energizing just before stopping, shortening the overrun when stopping, and making it possible to absorb temperature dependence. In addition, it is possible to absorb battery voltage dependence due to the same potential in forward and reverse directions.

The time it takes to ignite this reverse current depends on the outside temperature, battery voltage,
Controlled by individual difference information.

Figures 20 (a) and (b) show the movement of the lens in the auto zoom mode of Figures 19 (b) and (d), and are auto zoom timing charts that move the focal length by two pulses toward the telephoto side based on subject distance information. Then, the zoom movement pulse signal zP is counted and incremented by 1 from OFF to ON.

FIG. 20(a) is an example of two-pulse movement toward the normal rotation side, and at the end of the count, a stop process is immediately performed in the same way as when zooming up.

Fig. 20(b) is an example of two-pulse movement in the reverse direction, and at the end of the count, wait for the zoom movement pulse signal ZP to turn OFF in the same way as when zooming down, and at the timing when it changes from OFF to ON, the zoom drive motor is energized. From reverse energization to forward rotation energization, the next zoom movement pulse signal zP changes from OFF to ON.
At the timing of , the zoom drive motor is energized from forward rotation to reverse rotation and stopped.

In this way, by rotating the reverse rotation side in the forward direction, it is possible to perform the same stopping process as on the forward rotation side.Moreover, as mentioned above, the zoom drive can be performed immediately at the end of the pulse count without using a special chattering mask. Since the motor 99 is stopped, it can be stopped quickly by constant processing, and overrun can be reduced.

Therefore, it is particularly suitable for automatic zooming, which automatically calculates the distance and changes the zooming amount according to the result.

FIG. 21 shows a focusing drive sequence.

Focusing stop control always operates and stops the focus lens in the direction of moving it forward, that is, on the normal rotation side of the focusing motor 69.

The focusing motor 69 is driven and focused, and counting of pulses LDPI is started using the fall of the first pulse LDP2 as a trigger, and when the aforementioned predetermined pulse is input, stop control of the focusing motor 69 is started.

A short brake is applied to the focusing motor 69, constant voltage reverse energization is performed for reverse A time t1, and constant voltage forward energization is performed. Apply the short brake again and perform constant voltage reverse energization for 28 hours t2 on the river.
Then, constant voltage forward current energization is performed. Further, constant voltage reverse energization is performed for a reverse C time t3, and finally it is stopped for a predetermined time.

The reverse A time t1 depends on the number of control pulses.

As shown in Fig. 16, this control pulse depends on the distance measurement result, and the pulse LDPI, which is set as the motor rotation amount commensurate with the target rotation control amount, depends on the shift pulse to produce an infinite position. . The setting of this control pulse differs between the telephoto side and the wide-angle side, and is set for each zoom zone ZZ.

5 The reverse A time t1 becomes longer when there are many control pulses, and becomes shorter when there are fewer control pulses, and the reverse 28 time t2 and reverse C time t3 change the brake time depending on the moving speed of the focus lens. setting, performs stop control according to the moving speed of the focus lens,
It can always stop at a certain level of overrun, and the overrun is reduced.

In this way, the reverse A time t1 is set, for example, as shown in Table 2, depending on the control pulse.

Calculation of Table 2 (tl) Also, the river 28 time t2 is the short brake time, the reverse A time t1 for performing constant voltage reverse energization, and the constant voltage, for example, 14 pulses (PA) manually applied during the time for constant voltage forward energization. It is set depending on the operating time of 6.

Furthermore, reverse C time t3 is short brake time,
For example, a certain amount of time, for example 8, is manually applied during the river 28 time t2'BL when constant voltage reverse energization is performed and the time when constant voltage forward energization is performed.
It is set depending on the operating time of the pulse (P,).

The river 28 time t2 and reverse C time t3 are as shown in Table 3, for example.

Calculation of Table 3 (t2) and (t3) In addition, the short braking time before the reverse A time t1 and the reverse B time is set to be extremely short, for example, 200 μsec, so as not to adversely affect the motor, and the reverse time C The subsequent braking time is set constant, for example, 200 m5ec, and the short brake is used to stop the focusing motor 69 in a shorter time.

In this way, the MAIN-CPU 200 uses a stopping means to stop the focusing motor 69 by repeatedly applying reverse energization and forward energization brakes, and the time required to energize a predetermined amount of 8 motions using the reverse energization and forward energization brakes. , and a control means for setting the energization time of the next brake, so that the brake can be applied according to the moving speed of the focus lens, the amount of overrun can be kept constant, and the focus lens can be stopped. can be performed in a short time and with high precision.

Further, the reverse A time t1, the reverse 28 time t2, and the reverse C time t3 are corrected based on temperature, power supply voltage, and individual difference information.

Shutter structure As shown in FIGS. 8 and 9, the shutter structure includes a photo interrupter 102 that detects the operation of the shutter blade 51 in the rear holder 48, and cuts 51b to 51e formed in the shutter blade 51 and the tip. Part 51f first ~
A fifth trigger signal is obtained.

The shutter blade 51 is connected to the operating bin 8 as shown in FIG.
It is designed to be driven by the operation of 4, and the operation bin 8
4 is fixed to a lever 86 provided on a rotating shaft 85, and teeth 86a formed on this lever 86 mesh with a drive pinion 88 of a shutter drive motor 87 constituted by a DC motor. The operating pin 84 is operated via the lever 86 by the drive of the shutter drive motor 87, and the pair of shutter blades 51 are opened and closed. shutter blade 5
1 are rotatably supported by projections 89 of the front sliding frame 42, and the operating bins 84 are opened and closed by pushing their bases 51a.

As shown in the cross-sectional view of the structure of the shutter blade 51 in FIG.
The lubricating electrostatic coating 402 is applied to the top. The thickness Dl of this shutter blade 51 is, for example, 100 to 1
50μ, the thickness D2 of the Hastelloy vapor deposition 401 is, for example, 1
~2μ and the thickness D3 of the lubricating electrostatic coating 402 is, for example, 1~
It is set to 10μ.

This shutter blade 51 has good flatness and is hard, and is light because the polyester film 400 is used as a base. Furthermore, by vapor-depositing Hastelloy 401 on the base of the polyester film 400, the static electricity generated by the operation of the shutter blade 51 is discharged from the conductive operating bottle 84 to the metal plate 66 via the lever 86 and the rotating shaft 85. This prevents f-electrification from occurring on the shutter blade 51. By discharging the metal plate 66 in this manner, the front sliding frame 42, the rear holder 48, etc. can be molded from resin instead of metal, making it easy to manufacture the camera.

Shutter Driving Device Next, the shutter driving device of this camera will be explained in detail.

FIG. 23 is an AE program diagram showing exposure control when using a film with an RSO sensitivity of 100. Exposure control is performed using two elements: shutter speed and aperture, with the horizontal axis representing the shutter speed and the aperture representing the vertical axis. After the film sensitivity is determined and the subject brightness is measured, the EV value, which is the appropriate exposure value, is determined, and the shutter speed and aperture are set to achieve that EV value.
The interlocking range is from EV value to EV value 18. Since this camera has zoom control, when the focal length changes, the effective F value changes, and F3.5 is obtained when the wide-angle side is fully opened, and F8.5 is obtained when the telephoto side is fully opened. On the wide-angle side, F3.8 is used because the required resolution cannot be obtained at f/3.5, and it is not fully opened on the wide-angle side.

In addition, since this camera cannot measure the EV value of 18 or higher using the photometer's ability, the EVF value is set to 8 at the telephoto end and the exposure is controlled at a shutter speed of approximately 1/300, but film with an ISO sensitivity of 400 is used. For example, exposure control is possible at a shutter speed of 1750G. moreover,
The range in which strobe light emission control is linked on the telephoto side and the wide-angle side is shown by double lines.

24(a) to 24(d) are diagrams showing the principle of automatic exposure correction; FIG. 24(a) shows the exposure control of a standard shutter;
FIG. 24(b) shows exposure control when the shutter blade 51 operates slowly, FIG. 24(C) shows exposure control of a standard shutter, and FIG. 24(d) shows exposure control when the shutter blade 51 operates slowly. Exposure control is shown.

In FIG. 24(a), a shutter drive motor 8 consisting of a DC motor drives the shutter blade 51 in response to a release operation.
7, reverse current is applied for a predetermined time t1 to remove the backlash of the machine, the shutter spring is moved to the closing side abutment position, and current is applied at a high voltage for a predetermined time t2 to drive the shutter blade 51 in the opening direction. At time t3, electricity is applied at a low voltage to open the shutter blade 51. And the shutter blade 51
At the fall of the trigger signal ST output when a predetermined frontage aperture is obtained, the shutter drive motor 87 is reversely energized for a predetermined time t4 to operate the shutter blade 51 in the closing direction and stop it.

The opening area of the shutter blade 51 increases exponentially in accordance with the rotation amount of the shutter drive motor 87, and when a predetermined delay time t5 has elapsed since reverse energization, the shutter blade 51
1 is closed and a predetermined exposure amount can be obtained.

By the way, as shown in FIG. 24(b), for example, when the increase in the rotational speed of the shutter drive motor 87 is slow, the operation of the shutter blade 51 is slowed down, so the output of the trigger signal ST is slowed down, and the exposure is reduced accordingly. An error occurs in the amount.

Therefore, as shown in FIGS. 24(c) and 24(d), means for applying a high voltage and a low voltage to the shutter drive motor 87 when the shutter is opened, and a plurality of triggers in synchronization with the opening operation of the shutter blade 51 are provided. After the opening operation from the fully closed initial position by means of the first trigger signal STO, the high voltage is applied until the opening starts until the second trigger signal ST1 is generated. It is equipped with a means for energizing at low snow pressure after the point. A specific configuration of the means for obtaining a plurality of trigger signals in synchronization with the opening operation of the shutter blade 51 is shown in FIG. 13, and is adapted to obtain the first to fifth trigger signals ST.

As a result, as shown in FIG. 24(C), for example, when the shutter blade 51 operates normally, the output time of the first trigger signal STO is short, and the energization time t2 at a high voltage is correspondingly short. is short. By the way, as shown in FIG. 24(d), for example, if the shutter blade 51 operates slowly, the output time of the first trigger signal STO becomes longer, and the output time of the first trigger signal STO becomes longer. The energization time t2 at the high voltage becomes longer and the energization is continued at a lower voltage for a predetermined time t3 until reverse energization is performed by the second trigger signal STI. In this way, by changing the energization time t2 of the high voltage applied to the shutter drive motor 87, a uniform exposure amount can be obtained. Therefore, it is possible to absorb variations in load due to individual differences in the weight of the shutter blade 51, etc., and to eliminate the influence of environmental factors such as temperature, etc., and it is possible to obtain a highly accurate exposure amount.

Further, the energization time at a high voltage can be automatically set according to the output of the first trigger signal STO obtained in synchronization with the opening operation of the shutter blade 51, and special adjustment means can be used. The exposure amount can be corrected by applying a high voltage corresponding to the shutter opening operation.

FIG. 25 shows the details of the exposure amount correction, and the solid line in FIG. 25 shows the exposure amount of the standard shutter in FIG. 24(C), and the broken line shows the case where the shutter blade 51 operates slowly in FIG. It shows the exposure amount.

According to the output of the first trigger signal STO, the high voltage energization time t2 of the DC motor is automatically adjusted, and the low voltage is energized at the fall of the first trigger signal STO, and the second trigger signal STO is energized. Reverse current is applied at the falling edge of signal STI.

That is, when the load on the shutter drive motor 87 is large due to exposure control by the shutter blade 51, the operating speed of the shutter blade 51 is slow, as shown in FIG. 24(d) shown by a broken line, and as shown in FIG. 24(C) shown by a solid line. Compared to the case of exposure control using the shutter blade 51, the slope of the exposure characteristic curve is gentler both at the rise and fall, but by increasing the energization time t2 at a high voltage, the exposure amount can be made to be between -. Corrected.

FIGS. 26(a) to 26(f) show the operating state of the shutter blade 510. FIG. 26(a) shows the state when the motor is started, and the first trigger signal STO is output, but the shutter drive motor 87 is not rotating and the first trigger signal STO is output. A high voltage is applied to the shutter drive motor 87, thereby driving the shutter drive motor 87. 26th
In Figure (b), the shutter drive motor 87 rotates about 70 degrees, the lever 86 is activated, the shutter blade 51 is activated, the second trigger signal STI is output, and the shutter is in a state immediately before opening. In FIG. 26(C), the shutter blade 51 is further actuated to output a third trigger signal ST2, and this trigger signal ST2 is used as a trigger to control the shutter blade 51 to stop, and the aperture is set to F5.6. Figure 26 (d
), the shutter blade 51 is further operated and a fourth trigger signal ST3 is output, and this trigger signal ST3 is used as a trigger to control the shutter blade 51 to stop, and the aperture is set to F.
Set it to 3.8. In FIG. 26(e), the fifth trigger signal S
T4 is output, and using this trigger signal ST4 as a trigger, the shutter blades 51 are stopped and an open aperture is formed, resulting in the aperture shown in FIG. 26(f). By controlling the stop of the shutter blade 51 when the shutter blade 51 is fully open, it is possible to prevent the shutter blade 51 from bouncing when the shutter blade 51 is fully open, thereby reducing the mechanical overstroke of the shutter blade 51 from the fully open position to absorb the bounce. can do.

When the shutter blade 51 is fully opened, the shaft of the shutter drive motor 87 rotates about one revolution. The shutter drive motor 87 shown in this embodiment does not reach the saturation speed until about one revolution after starting, and the shutter opening operation depends on the starting characteristics of the motor. Therefore, it can be used in areas with high responsiveness in forward and reverse rotations.

27(a) to 27(d) show the shutter drive sequence, FIG. 28(a) shows the energization time table, and FIG.
FIG. 29(b) shows a braking time table, and FIG. 29 shows the opening characteristics of the shutter blade 51.

FIG. 27(a) shows control at high shutter speed, and shows shutter drive in regions At and A2 where the aperture value and shutter speed on the telephoto side and wide-angle side of FIG. 23 change. Figure 27(b) shows the shutter drive in region B where the aperture value is constant at short distances on the wide-angle side and the shutter speed changes, and Figure 27(C) shows the aperture value at long distances on the wide-angle side. The shutter drive in region C is shown in which the shutter speed is constant and changes. FIG. 27(d) shows the shutter drive in a region where the aperture value is constant when fully opened on the telephoto side and the shutter speed changes.

8 The shutter drive motor 87 receives a trigger signal ST output from the shutter blade 51 as shown in FIGS. 24(a) to 24(d).
is driven by. The shutter drive motor 87 is energized with a high voltage from the start of shutter drive, and receives the first trigger signal STO.
At the falling edge of , a lower voltage is energized and switched to perform the opening operation. The exposure amount control table energization time t6 of the positive voltage applied to the shutter drive motor 87 is stored, for example, in a table 1 as shown in FIG. 28(a).

27(a) shows the falling edge of the second trigger signal STI, FIG. 27(b) shows the falling edge of the third trigger signal ST2, and FIG. 27(C) shows the falling edge of the fourth trigger signal ST3. In FIG. 27(d), the falling edge is detected by the fifth trigger signal ST.
Exposure control is performed using the fall of 4 as a trigger.

In FIG. 27(a), using the fall of the second trigger signal ST+ as a trigger signal, reverse energization is performed for a predetermined time t7 after the time indicated in Table 2 has elapsed, and braking is performed for a predetermined time 8, as shown in FIG. The aperture characteristic X1 of the shutter blade having a rectangular waveform is obtained.

In FIGS. 27(b) to 27(d), stop control is performed, trigger signals ST are counted, and the third. Fourth and fifth trigger signals ST2. ST3. At the falling edge of ST4, the current is reversely energized for an adjustment time t9, braking is performed for a predetermined time t10, and further, the reverse current is energized for a predetermined time tll, and braking is performed again for a predetermined time t12.
The aperture characteristic of the shutter blade 51 having a trapezoidal waveform as shown in the figure x2x3. Get X4.

This third. 4th. The adjustment time t9 for reverse energization at the fall of the fifth trigger signal is written in a storage means such as an EEROM, and the adjustment time t9 differs for each F value. Further, for the predetermined time tlo of braking to be performed after this adjustment time t9, table 2 stored in the memory in advance is used, for example, as shown in FIG. 28(b), and this table 2 corresponds to each calibration. The exposure time table is shifted and used to simplify the information.

In addition, the first trigger signal ST in FIGS. 27(a) to (d)
O is used as the light emission timing for strobe control, and interrupt control is performed from this first trigger signal STO to perform strobe light emission. In addition, the strobe light emission timing is shown in FIGS. 27(a) to 27(d), for example, at 2. Third. Fourth and fifth trigger signals STI, ST2, 5
It can also be performed by T3ST4.

The shutter drive sequence shown in FIGS. 27(a) to (d) and the aperture characteristics of the shutter blade xIX2 shown in FIG. 28. X3. X
4, the triangular waveform is controlled by the time from the first trigger signal STO, and the trapezoidal waveform is controlled by subsequent trigger signals, thereby controlling the exposure amount.

A means for obtaining a trigger signal ST corresponding to the aperture value in synchronization with the opening operation of the shutter blade 51, and a means for detecting the trigger signal ST generated when the shutter is opened as aperture value information and stopping the drive of the shutter drive motor 87 to aperture the aperture. and means for controlling the shutter blade 51 to close and stop the shutter blade 51 after a predetermined period of time after stopping the shutter drive motor 87 of the DC motor. Accordingly, trigger signals STI, ST2, ST3, . ST4 is detected as aperture value information, the driving of the shutter drive motor 87 is stopped to form an aperture, and after a predetermined time, reverse current is applied to control the closing of the shutter blades.

By controlling the triangular waveform using the time from this first trigger signal STO, only one table 1 storing the time is required, and as shown in FIGS.
Even if the value increases, the time can be set according to the F value, so the size of the table 1 can be reduced.

Furthermore, by controlling the triangular waveform based on the time from the first trigger signal STO, and controlling the trapezoidal waveform based on the braking or reverse energization time using subsequent trigger signals, exposure-priority or aperture-priority program control can be performed. Moreover, exposure accuracy can be improved.

Further, the stop control of the shutter blade 51 is performed in FIGS.
It may be configured as shown in (C), in which a braking effect is provided by changing the adjustment time and the energizing voltage in order to stop the evening feathers 51 accurately and stably. FIG. 30(a) shows reverse energization adjustment time t14. t15
Fig. 30(b) shows a case where the voltage E1 of reverse energization is lowered.

Moreover, in FIG. 30(C), the voltage E2 of the first reverse energization is made high, and the voltage E3 of the second reverse energization is made low. That is, although large variations may occur depending on the acceleration before sudden braking, gentle stopping control can be performed by lowering the voltage E3 of the second reverse energization.

Distance measurement and photometry device The distance measurement device of the camera has a variable distance measurement point, and the distance measurement direction can be changed stepwise from side to side by pressing the operation button. Further, the photometry device is also integrated with the distance measurement device and is adapted to change the photometry direction.

FIG. 31 is a plan view of the distance measuring and photometric device, and FIG. 32 is a sectional view taken along line AA' of the distance measuring and photometric device.

A distance measuring light projection unit 501 close to the front cover 500 of the camera,
A distance measurement light receiving section 502 and a photometry section 503 are provided, each of which is attached to a distance measurement base 504.

This ranging base 504 has a support shaft 506 provided on a moving target base 505 fixedly held on the main body.
It can be rotated in left and right directions about this support shaft 506 as a fulcrum, thereby changing the directions of the distance measuring light emitting section 501, the distance measuring light receiving section 502, and the photometering section 503. The support shaft 506 is provided with a position regulating spring 507, one end 507a of which is engaged with a stopper 50B fixed to the moving target base 505, and the other end 507b of which is engaged with the ranging base 504. This suppresses play in the circumferential and axial directions of the support shaft 506.

A connecting bin 509 is provided on the ranging base 504, and this connecting bin 509 is connected to the recess 510a of the adjustment plate 510.
is engaged with. Adjustment plate 510 is drum 511
When the drum 511 rotates in the left-right direction about the support shaft 524, the range-finding base 504 is rotated by a predetermined angle in conjunction with the drum 511. The drum 51 is attached to the adjustment plate 510.
A long hole 510b is formed in the circumferential direction around the support shaft 524 of No. 1.
is formed, and the pin 511f of the tram 511 is inserted into this long hole 510b, and this positional relationship is adjusted to the eccentric bin 511.
g, and the distance measurement position can be adjusted by changing the mounting position during assembly.

Operating grooves 511a, 51 are provided at opposing positions of the tram 511.
1b are formed in two stages each, and these operating grooves 511a, 511
b shows the support shaft 5 of the moving target base 505.
23, and the supporting shafts 515, 51 of the moving target base 505.
Fixing claws 517 and 518 rotatably provided in 6 engage with each other. When one of the moving target levers 512 is pressed, the other feed pawl 55 13.514 disengages from the working grooves 511a, 511b, retreats, and moves the rising portions 517b, 518b of the fixed pawls 517, 518. The fixing claw also releases and retreats from the working groove.

The fixing claws 517, 518 are formed with downward stopper portions 517a, 518a on the drum side, and upward rising portions 517b, 518b on the non-drum side. Support shaft 51
5,516 is provided with a spring 519520, one end 519a, 520a of which is attached to the fixed claw 517, 518, and the other end 519b, 520b is attached to the moving target base 5.
05, and the fixed claws 517, 518 are always kept in the working groove 511a of the drum 511.
, 511b.

The moving target lever 512 is rotatably provided on a support shaft 523 of the moving target base 505. A return spring 528 is attached to the mounting shaft portion 550 screwed onto the support shaft 523, and both ends 528a of the return spring 528 are formed on the shaft portion 551C of the mounting shaft portion 551 screwed onto the support shaft 524. The moving target lever 512 is engaged with the stopper portion 551d, and the moving target lever 512 is engaged with the stopper portion 551d.
is always biased to return to its initial position.

A recess 511e is formed on the outer periphery of the drum 511, and the spring portion 52 of the center click plate 526 is inserted into the recess 511e.
6a is adapted to be engaged. Center click board 5
26 is the screw 527 on the moving target base 505
By the action of this center click plate 526, the drum 511 is held at the initial position, and the distance measuring light projector 5o1,
The distance measurement light receiving section 502 and the photometry section 503 are at the center position where they do not rotate.

On the other hand, a return spring 525 is attached to the shaft of the drum 511, and both ends 525a of the return spring 525 are engaged with the shaft of the moving target lever 512, and the return spring 528 pushes the stopper part 511c. via tram 5
11 is always biased to return to its initial position.

Feed pawls 513 and 514 rotatably biased toward the drum 511 by springs 519 and 520 at both ends of the moving target lever 512 move the working groove 51 of the drum 511 as the moving target lever 512 rotates in the left-right direction.
1a, 511b to rotate the drum 511 one stage at a time. The fixed claw 5 is located below this feed claw 513,514.
17518 is located.

The moving target lever 512 is rotated in the left-right direction using the operation button 13 about the support shaft 523, and the rotation of the moving target lever 512 causes the feed claws 513, 514 in the rotating direction to move into the working groove 511a of the tram 511.
511b and is pushed. Now, the tram 511 rotates, and the fixed claws 517 and 518 in the rotating direction are fixed on the drum 5.
The drum 511 is engaged with the working grooves 511a and 511b next to No. 11, and the drum 511 is rotated and held by one stage of working grooves 511a and 51ib. At this time, the feed claw 513.51 in the non-rotational direction
4 comes into contact with the rising portions 517b and 518b of the fixed claws 517 and 518 by rotation of the moving target lever 512, and rotates the fixed claws 517518 against the springs 519 and 520 to generate working winds 511a and 511b in the non-rotating direction. The engagement of the drum 511 is released, and the drum 511 is made rotatable. When the moving target lever 512 returns to the initial position,
Since the fixed claws 517 and 51B are no longer locked by the feed claws 513 and 514, they engage with the working grooves 511a and 511b of the next stage to restrict rotation of the drum 511.

Protrusions 13e and 13f are provided above and below the operation button 13, and mounting portions 13g and 13h are provided on the left and right sides, so that the operation button 13 can be used for two operations: a zooming operation and a moving target operation.

That is, by suppressing the operation part 13a of the operation button 13, the protrusion 13e is moved to the moving target base 5.
Switch 552 made of elastic conductive rubber provided in 05
The contact piece 552a is pressed to bring the pattern of the flexible printed circuit board connected to the control section on the main body into a conductive state, thereby moving the focal length of the zoom lens toward the telephoto side.

9 On the other hand, by pressing the operating part 13b of the operating button 13, the protrusion 13f presses the contact piece part 552b to bring the pattern of the flexible printed circuit board connected to the control part on the main body into a conductive state, and the zoom lens Move the focal length of the camera to the wide-angle side.

In addition, by depressing the operating part 13d of the operating button 13, the left side of the moving target lever 512 is pushed by the mounting part 13h, and the drum 511 is rotated to the right via the feed pawl 514, thereby measuring the distance. The base 504 is rotated to the left to change the distance measurement and photometry directions.

By pressing the operating part 13c of the operating button 13, the right side of the moving target lever 512 is pushed by the mounting part 13g, contrary to the above, and the drum 511 is rotated to the left via the feed pawl 513. The distance measurement base 504 is rotated to the right to change the distance measurement and photometry directions to the right.

A recess 530a of a position detection lever 530 is engaged with the bin 529 provided on the drum 511. The piece 532 slides on a pattern (not shown) and the drum 51
The distance measurement base 504 outputs the rotation information of 1 and performs distance measurement control.
It is now possible to obtain location information.

The support shaft 531 is also rotatably provided with a release lever 533, and this release lever 533 is provided with a contact piece 534, which is operated in conjunction with the operation of the main switch 8 which can be clicked into two positions. The shaft portion 533a provided on the release lever 533 is connected to the recess 535a of the release plate 535 rotatably provided on the shaft portion 511c of the tram 511.
When the release lever 533 is operated, the release plate 535 is rotated clockwise or counterclockwise.

Therefore, when the main switch 8 is turned off, the release lever 533 is rotated clockwise by operating the main switch 8. Now, when the release plate 535 is rotated counterclockwise, the operating parts 535b and 535c are moved to the fixed claw 517.
, 518 and is pressed against the stoppers 517a, 518a. For this reason, the fixed claws 517 and 518 are attached to the support shaft 515.
．． Using 516 as a fulcrum, the drum 511 rotates in a direction away from the action 14511a, 511b against the springs 519 and 520. As a result, the position restriction of the drum 511 is released, so that the drum 511 is moved by the return spring 52.
5 returns to the center initial position, and the click portion 5 of the center click plate 526 is inserted into the recess 511e of the drum 511.
26a is engaged and held in this initial position. Therefore, whenever the main switch 8 is turned off, the moving target is automatically returned to the center position, and preparations for the next photographing can be made without any special operation.

Distance Measurement Control Next, the moving target information set will be explained. FIG. 33 shows a schematic diagram for obtaining moving target information from the distance measuring device shown in FIGS. 31 and 32.

The direction of the ranging base 504 is changed by rotating the drum 511 shown in FIG.
When the contact piece 532 is connected to patterns 0 to 4 in FIG. 33, an analog voltage MVT is obtained according to the patterns 0 to 4. This analog voltage MVI is A/D converted, and distance measuring direction position information MVZ is obtained from this A/D value. In this embodiment, when the ranging direction position information MVZ is 0, the left 66
The deflection angle of the rangefinder is 3.3 degrees to the left when MVZ is 1, 3.3 degrees to the right when MVZ is 2, 3.3 degrees to the right when MVZ is 3, and 6.6 degrees to the right when MVZ is 4. Can detect something.

From this ranging direction position information MVZ and focal length information ZZ, moving target position information MV is selected from the moving target table shown in Table 4.

Table 4 Based on the selected moving target position information MV, one of the 1 to 13 LCDs from the left in the viewfinder display in FIG. 6 is selected and turned on.

By displaying the information in the finder in this way, it is possible to easily confirm from the outside which position is being measured. In this embodiment, the deflection angle of the distance measuring device can be switched in two steps to the left and right around the optical axis of the photographic lens. A deflection angle other than the center causes a discrepancy between the target frame displayed in the viewfinder and the distance measurement point of the rangefinder. This discrepancy occurs because the magnification in the finder changes as the focal length changes due to zooming, but the deflection angle of the rangefinder does not change.This can be corrected by changing the moving target display position in the finder. This allows the distance measurement point to correspond to the moving target display, thereby eliminating changes in the distance measurement range between telephoto and wide-angle settings.

Furthermore, the information set for varax correction will be explained. Parallax correction is to correct the mismatch between the photographing range of the photographing lens and the viewfinder, and controls the lighting and blinking of the automatic parallax correction field frame 20, which is displayed on a liquid crystal display and is provided in the optical path of the finder. This is done by

Figures 34 (1) to (3) show the inside of the finder, and the display state of the vararax, which controls the field of view by flashing the field frames 20a and 20b, is based on the subject distance information , is selected from the balaxe correction table shown in Table 5 based on the microscopic zone information AFZ and the focal length information ZZ.

Table 5 That is, when the distance measurement zone information AFZ is 0 to 63, the correction shown in FIG. 34 (1) is performed regardless of the focal length information 22, and when the distance measurement zone information AFZ is 64 to 127, If the focal length information 22 is on the telephoto side, the correction shown in FIG.
In the case of 2, when the focal length information 1zz is 8 to 15,
The correction shown in FIG. 34(2) is performed, and when the focal length information 2Z is 16 to 23, the correction shown in FIG. 34(3) is performed. Further, when the main switch is turned on and only zooming information is obtained, the state shown in FIG. 34 (1) is established. After photographing, the state is returned to the state shown in FIG. 34 (1).

FIG. 35 shows a method of correcting the distance measurement error caused by changing the refraction angle of the distance measurement light transmitted through the dustproof panel surface by changing the distance measurement direction.

A dust-proof panel 600 is provided in front of the distance-measuring device to protect the distance-measuring unit and the like, and the dust-proof panel 600 is fixed to the camera case and does not move when the distance-measuring point changes. Therefore, as shown in FIG.
The refraction of the distance measuring light projected from the object 602 to the subject 602 when passing through the dustproof panel 600 changes depending on the deflection angle α in the distance measuring direction. Due to this, an error X occurs on the PSD distance measurement surface of the light-receiving light element 604 via the AF lens 603, and accurate distance measurement results cannot be obtained.

Therefore, as shown in FIG. 35, changes in the error X depending on the deflection angles θ and α are determined in advance and stored in a table as described below.

7 Here, t' is determined by the distance between the optical axis and the AF lens.

Next, when calculating the refraction angle θ' of the dustproof panel 600, -sin+9) refraction angle θ' = sin '(...Formula 2) Here, n is the refractive index of the dustproof panel 600, for example approximately n
= about 1.5.

The error xO due to the refraction of this dustproof panel 600 is the error xO
=d・(tanθ−tanθ′)...Equation 3 Also, the distance 1iixl between the distance measuring light refracted by the dustproof panel 600 and the distance measuring light not refracted is xl=xOcose
Equation 4 Therefore, the error X of the light-receiving element 604 on the PSD distance measurement surface is calculated as follows.

In this way, means for obtaining position information in the distance measurement direction and means for correcting the distance measurement information based on the position information in the distance measurement direction are provided. By correcting the distance measurement information from the table, it is possible to remove distance measurement errors caused by changes in the refraction of the distance measurement light that passes through the dustproof panel depending on the deflection angle in the distance measurement direction.
Obtain accurate ranging results. The luminous flux of the light emitted from the distance measuring device is also refracted by the dustproof panel 600, but this correction can be made by adjusting the moving target mark 21 in the finder in advance by the amount of deviation of the luminous flux caused by the refraction.

Photometry control Next, photometry control will be explained.

FIG. 36 is a timing chart of photometry.

As shown in FIG. 36, this photometry control is performed by controlling the spot/average photometry switching signal S/A, measurement start command signal CA, measurement start signal CB, and measurement stop signal AEI, and the spot time of the output of the photometry IC. Find SPT and average time AVT.

In this photometry control, the spot/average photometry switching signal S
Spot photometry is performed when /A is at L level, and average photometry is performed when /A is at H level. When the operation of the routine before the photometry routine is completed, the photometry routine starts, and after a predetermined time to stabilize the power supply voltage, the measurement start signal CB becomes H level, and the capacitor set to the reference voltage is discharged for a predetermined time. After this time has elapsed, the measurement start command signal CA is set to H level, the timer T is activated, and the charging time of the capacitor changes depending on the amount of light received by the photometric element for spot photometry. When the reference voltage is reached, the measurement stop signal AEI becomes H level, and the spot photometry time SPT is measured by the number of loops of the timer T during this time.

Next, the spot/average photometry switching signal S/A is set to H level, and after a predetermined time to stabilize the power supply voltage,
The measurement start signal CB is set to H level, and the capacitor set to the reference voltage is discharged for a predetermined period of time. After this time, when the measurement start command signal CA is set to H level, the timer T is activated and the capacitor set to the reference voltage is set to the H level. The charging time of the capacitor changes depending on the amount of light received by the photometric element.By detecting that the capacitor reaches the reference voltage, the measurement stop signal AEI is set to H level, and the number of loops of timer T during this period is set to H level. Then, the average time AVT is measured.

Next, photometric calculation correction will be explained.

Spot photometry time SPT and average photometry time AVT
is proportional to the brightness, and it is judged that the longer the time is, the darker the light is, and the shorter the time is, the brighter. This photometric characteristic is shown in the graph of FIG. 37, for example, for the average photometric time AVT of 1.

In Fig. 37, the vertical axis is the value obtained by multiplying the EV value calculated from the number of loops of timer T by 5 to facilitate calculation, and EVAV
, and the average photometry time AVT is set on the horizontal axis, then
The relationship between the two can be shown by the standard characteristic shown by the solid line.

By the way, for example, if the externally attached photometric IC has an error characteristic as shown by a dash-dot line or a dash-double line due to variations in resistors, capacitors, etc., then by matching this error characteristic to the standard characteristic, the photometry Calculation correction is performed.

However, photometric correction to match this error characteristic to the standard characteristic requires hardware such as installing a resistor for correction, which increases the number of parts, is difficult to automate, and requires a lot of adjustment man-hours. There is a problem.

By the way, since the relationship between the average photometry time AVT and the number of loops of timer T in FIG. 38 is as shown in the graph, select the loop time of timer T for measuring the average photometry time AVT. The error characteristics can be matched to the standard characteristics.

That is, in order to measure the average time AVT, a timer is run for 248 μsec in one loop, and the measurement is performed by the number of loops that the timer T runs during the average photometry time AVT. For this reason, for example, a timer of 232 .mu.Sec per loop is selected for the error characteristic indicated by the dashed dotted line in FIG. 38, and a timer of 264 .mu.sec is selected for the error characteristic indicated by the dashed double dotted line in FIG.

This makes it possible to match the control characteristics as shown in the graph of the relationship between EVAV and the number of loops of timer T in FIG.

This photometry control is performed using a table from which the control characteristics shown in FIG. 39 are obtained, and this control characteristic determines the average photometry value EVAV from the photometry time AVT as follows.

EVAV = EVSFT - number of loops of timer T, where:
EVSFT indicates a shift amount, and is used to shift and adjust vertical deviations from standard characteristics using data (0 to 127) in the EEPROM. Also, timer T
is the data EVLE in the EEPROM as shown in Table-6.
It is determined by N.

Table 6 Therefore, by selecting EVLEN, it is possible to correct the error in the slope characteristic, and by selecting EVSFT, it is possible to correct the error in the vertical shift characteristic.
As shown in FIG. 7, if the error characteristic is as shown by the - dotted chain line, and if the timer T232μsec in FIG.
Select and correct the timer T264 μsec.

In this way, even if the average photometry time AVT deviates from the standard photometry characteristics, it can be adjusted by changing the loop time of timer T to match the standard photometry characteristics without adjusting the heart. We are trying to obtain the characteristics.

In addition, by selecting the EVLEN data stored in the memory, the error in the slope characteristic is corrected, and in the same way, by selecting the EVSFT data, the error in the vertical shift characteristic is corrected, and the photometric characteristic shown in Fig. 39 is obtained. Only one correction table is required, which has the advantage of reducing memory capacity and processing time.

Control Circuit FIG. 40 is a schematic circuit block diagram of a camera to which the present invention is applied.

This camera has MAIN-CPU200 and 5UB-CP
U201 is used, and information is exchanged alternately through the serial interface.

The MAIN-CPU 200 mainly controls the drive system that requires high-power processing and executes control sequences for camera shooting operations, and the 5UB-CPU 201 controls the MAIN-CPU 200 and controls the external LCD 202 and the LCD 203 in the viewfinder that display shooting-related information. drive

5 MATN-CPU 200 has input/output terminals as shown in FIG.

Input terminal DO5 output terminal DI, SK, CS are rewritable non-volatile memory (hereinafter referred to as EEPROM) 204
The initial state of the terminal DO is L level,
The initial states of terminals DI, SK, and CS are also at L level.

Output terminals SST, SCK, SIO, input terminals SRQ, S
r is used for serial transfer with the 5UB-CPU 201, terminal SST is initially at H level, terminal SRQ is initially at H level, terminal SCK is initially at H level,
The initial state of the terminal sro is at L level, and the initial state of terminal SI is at L level.

Input terminal AFE, output terminal APR, A/D conversion input terminal AP1. The output terminal 5YNC is used to control the distance measuring rc205, the initial state of the terminal AFE is H level, and the terminal AP
The initial state of R is H level. Further, the terminal API obtains distance measurement information obtained by calculating the output from the distance detection element (psD).

6 Output terminals IRI to IR3 are used to control the distance measuring light emitting elements 2.6, and the resistance value connected to each of them is changed to make the amount of light emitted variable, and the initial state H is the level.

Output terminals NT1 to NT3 are used to drive the LED display 207, and are initially at H level.

Output terminal PHS is used for self-power maintenance, and terminal PH3
When set to L level, the transistor 220 is turned on and the voltage from the regulator 221 is supplied to the MAIN-CPU 200. The initial state of this terminal PH3 is at L level.

The initial state of the output terminals PHP and PH3 is L level,
The terminal PHP is used to control the VB power supply 208 that supplies the voltage from the regulator 221 to a predetermined circuit.
Used to control 9.

Input terminal FFUL, output terminal FSTP, FTRG, FC
HG is used to control the strobe circuit 21 (+). The terminal FFUL is used to detect the completion of strobe charging, and is at H level when charging of the strobe capacitor is not completed, and becomes L level when charging is completed. FSTP
The initial state is H level and is used to control strobe charging stop, and the strobe capacitor is charged! Switch to L level when stopping. Terminals FTRG and FCHG are initially at H level, and terminal FTRG performs strobe light emission control, and is switched to an L level signal when performing strobe light emission. Terminal FCHG is used to control the start of strobe charging.
When starting charging the strobe capacitor, switch to L level.

Input terminals DX2, DX3, DX4 are Dx film 211
It is used to input the DX code from the camera and detect the film sensitivity.

Output terminals MO1M1 and M2 are the film feeding motor 212
and the first motor control IC 21 of the zoom drive motor 99
The terminal MO is used to control the film feed motor 2.
When driving 12, set it to L level, and when driving zoom drive 99, set it to H level.
The initial state in which the rotation of each motor is controlled by energization of No. 2 is at L level.

The output terminals SLS, SFR, SBMI, and 58M2 are the second ones of the focusing motor 69 and the shutter drive motor 87.
The initial state is L level. The terminal SLS is set to L level when driving the focusing motor 69, and the terminal SLS is set to the L level when driving the focusing motor 69.
When driving, set it to H level. Terminal SFR is set to L level when the focusing motor 69 and shutter drive motor 87 are driven to rotate at high speed, and set to H level when driven to rotate at low speed. Terminal SBM1.58M2
is used for rotation control (shown in Table 7). Terminal SHL
is at H level in its initial state and is used for constant voltage level control (shown in Table 8). The switches St and S2 are used for the first and second release signals, and are initially at H level and turned on at L level.

Table-7 Table-8 Low speed 1 x Low speed 2 Input terminal AEI, output terminal S/A, CB, CA are photometric I
The terminal AEI is used to control the photometric element (P
Brightness information is obtained by calculating the output from D) using the photometric TC 215. The initial states of terminals S/A, CB, and CA are at L level. Terminal S/A controls switching between the light receiving element for central photometry and the light receiving element for peripheral photometry; L level selects the light receiving element for central photometry, and H level selects the light receiving element for peripheral photometry. .

The input terminal MV is used to detect moving target operation, and inputs an H level when the target is not operated, inputs an L level when the operation is performed, and inputs a moving target position signal from the AD conversion input terminal MVI. .

The input terminal BRIA is used for barrier open/close detection by the switch 216, and an H level is manually input when the barrier is open, and an L level is input when the barrier is open.

The input terminal MAIN is used to detect the operation of the main switch 8, and becomes H level when the main switch 8 is in the ON state.
The circuit of the camera is enabled to operate, and in the OFF state, it becomes L level and becomes inoperative.

The input terminal ZU is used to operate the operation button 13 to zoom up, and when it is not operated, an H level is input, and when it is operated, an L level is manually input to drive the zoom. Terminal ZD is used for zoom down operation, and when it is not operated, H level is input and zoom drive is not performed, and when it is operated, L level is input manually and zoom drive is performed.

A/D conversion input Mizuko BCI is for battery voltage detection, A/P conversion input terminal zr is for zoom position detection, A/D conversion input terminal M
VI obtains moving target position detection, A/D conversion input terminal THI obtains temperature compensation from reference voltage VDD, and A/D conversion input terminal API obtains ranging information from reference voltage AV.
Obtained from DD.

Input terminals ZP, ZT, ZW, and ZC are used for X-point control, and terminal ZP detects 1-bit digital information output based on driving of the zoom lens. Terminal ZT is used to detect the zoom telephoto end, and manually sets the L level when the zoom lens is at its most telephoto end.

Terminal ZW is used to detect the zoom wide end, and inputs an H level when the zoom lens is at its widest position. The terminal zC is used to detect the zoom close end when the main switch is turned off and the photographing lens is placed in the retracted position, and an L level is input when the photographic lens is in the retracted position.

The terminal ST is used to input shutter blade opening information from the photointerrupter 102, and is used to input shutter blade opening information from the photo interrupter 102,
1 open/close detection is performed.

The input terminals LDPI and LDP2 are connected to the photo interrupter 778 as the focusing lens of the photographing lens is driven.
Focusing pulses from 3 to 1.2 are used for human power.

The input terminal SSP is used to detect film feeding information from the switch 217, and manually outputs a digital signal as the film is fed.

Output terminal DTRG and input terminal wcr are date system 41c2
18, and when data is to be imprinted, it is set to L level and the imprinting lamp is emitted. Terminal DTRG
The initial state is H level.

The 5LIBCPU 201 has the following input/output terminals.

The input terminal MAINL is used to detect the operation of the main switch 8, and inputs an H level when the main switch 8 is on, and inputs an L level when the main switch 8 is off.

The input terminal SB is used to detect whether the back cover is open or closed from the back cover open/close switch 219, and when the back cover is open, the H3 level is input, and when the back cover is closed, the L level is input.

The input terminal SIL is used to detect the switch S1 of the release button 9, and the L level is input when the release button 9 is pressed in the first stage, and the H level is manually input when the release button 9 is not pressed.

The input terminal ZMR is used to detect a zoom operation from the operation button 13, and the H level is input by operating the zoom button, and the L level is manually input when the zoom button is not operated.

Input terminal MVL is used to detect moving target operation, and inputs an H level when a moving target is operated, and inputs an L level when the moving target is not operated.

Input terminal MREW is manual rewind switch 22
When the manual rewind switch 222 is activated, the L level is manually set to start the rewind operation. Further, when no operation is performed, an H level is input.

4. Input terminal TEST detects input of camera test mode.

Input terminal KEYO is used as a common.

Input terminal ST○ is used for strobe mode change input,
Input L level by pressing operation. Depending on the suppression operation of the strobe setting switch, the strobe mode can be set to 'AUTO', which is the automatic firing mode, 'ON', which forces the strobe to fire, or 'ON', which does not fire the strobe regardless of the brightness.
"OFF" in sequence.

The input terminal 1 is used to input a drive mode change, and normally inputs an H level, and inputs an L level when a suppression operation is performed. In response to the suppression operation of the drive mode setting switch, the drive mode is cyclically selected from single shooting mode, continuous shooting mode, and self-timer mode in sequence.

Input terminal FNC is 0N-OF for manual function change.
Normally, H level is input, and L level is input by suppression operation.

The input terminal ROLL is used to input a function change, and normally the H level is manually input, and the L level is input by pressing.

The input terminals SEL and SET are used to change function data, and the output terminal PHM is used to control the power supply of the MAIN CPU 200, and is set to H level when activated, and set to L level when not activated.

Output terminal SRQ and input terminal SST are used for serial transfer, input terminal LIVE is used to monitor the power supply of MAIN-CPU 200, and output terminal RSTO is used for MAIN-
Used for CPU reset output, and also external LCD2
02 and an output terminal to the LCD 203 in the finder.

Line mode, mode flag and data Send this MAIN-
The execution mode, mode flag, and transfer shown in the flowchart of the CPU 200 are as follows.

Next, data transfer from the MAIN-CPU to the 5UB-CPU will be explained.

Figure 41 shows the transfer interface between MATN-CPU and 5UB-CPU, and Figure 42 shows the 5UB from MAINCPU.
- It is a timing chart of transfer to CPU.

Transfer from the MAIN-CPU 200 to the 5UB-CPLI 201 is performed by serial transfer as shown in the transfer timing chart of FIG.

At the falling edge of terminal SST (a), MAIN-CPU20
A transfer start instruction is issued from 0, and at the falling edge of terminal SRQ (b), preparation for transfer reception at 5UB-CPo and 2081 is completed. And terminal SC
In synchronization with the H level and L level of K (c), MAIN-
The CPU 200 is connected to the terminal SlO! +) data output is 5U
B-CPU 201 uses terminal SI to read data. At the rising edge of terminal SRQ (d) SUB-CP
The transfer at the LI 201 and (e) the transfer at the MAIN-CPU 200 are completed at the rising edge of the terminal SST.

After this serial transfer is completed, terminal SCK is set to external lock manual mode, and terminal 5IO1SIOL is set to manual mode.

Further, the execution mode, mode flag, and transfer shown in the flowchart of the 5UB-CPU 201 are as follows.

Next, data transfer from 5UB-CPtJ to MAIN-CPtJ will be explained.

Fig. 43 From SUB-CP U to MAIN-CP
It is a timing chart of transfer to U.

Transfer from the 5UB-CPU 201 to the MAIN-CPU 200 is performed by serial transfer as shown in the transfer timing 1 chart of FIG.

At the rising edge of terminal SRQ (a), 5UB-CPU201
A transfer start instruction is issued from then, and at the falling edge of the terminal SST (b), the MAIN-CPU 200 is ready to accept the transfer. Then, in synchronization with terminal SCK, (c), 5
UB-CPU201 outputs data at terminal 5IOL, MA
IN-CPU 200 reads data through terminal Sl. At the rising edge of terminal SRQ (d) SUB-CP
Transfer at U201 occurs at the rising edge of terminal SST (e)
The transfer by the MAIN-CPU 200 is then completed.

After this serial transfer is completed, the terminal SCK is similarly set to the external lock manual mode, and the terminals SIO and 5IOL are set to the input mode.

FIG. 44 shows the operation of the MAIN-CPU 200, and the operation of the MAIN-CPU 200 is controlled by the 5UB-2 CPU 201. First, 5UB
- The CPU 201 sets the terminal RSTO to L level and MA
Give to terminal RESET of IN-CPU 200, MAI
Set the N-CPU200 to the reset state, then connect the terminal PHM
is set to L level to turn on the transistor 220, and the regulator 221 connects the 5UB-CPU201 (7) terminal LIVE and the MAIN-CPU200 (1) terminal VDDL.
Supply electricity. The terminal LIVE detects the power, and when the power is supplied, the terminal LIVE of the MAIN-CPU 200
It is determined that power is also being supplied to the DD. Said terminal R
When STO is set to H level and MAIN-CPU 200 is ready for operation, RAM is cleared and MAIN-CPU 200 is enabled.
First, the CPU 200 manually inputs the DX information of the film cartridge loaded into the camera. Input of DX information is performed by following the DXX information input subroutine shown in FIG.
Step 1-1).

Next, out of the data in the EEFROM, battery voltage correction data BCD and temperature correction data THD are manually input (step 1-2). Temperature information is manually input as analog voltage information from terminal THT, and this analog voltage information is input to A.
/D conversion is performed and TEMP corresponding to the table shown in FIG. 70 is stored in the RAM of the MAIN-CPU 200 (step 1-3).

Activate the 500m5ec timer, detect the state of terminal SRQ while the timer is counting, and when it becomes L level, change the work mode from 5UB-CPU201 to MAIN-CPU2.
00 (step 1-4), here, when the work mode is set to 81, that is, by operating the release button 9, the terminal SI of the 5OB-CPU 201 is transferred.
If L is detected at the L level, the process advances to flowchart S1 (step 1-5). When the work mode is set to waiter, that is, 5UB by operating main switch 8.
- If the terminal MAINL of the CPU 201 detects the L level, proceed to the flowchart life process (step 1).
-8). When the work mode is set to sleeve, that is, by operating the main switch 8, the 5UB-CPU201
If the terminal MAINL of the terminal MAINL detects the H level, the flowchart proceeds to sleeve processing (step 19). When the work mode is set to zoom, that is, operation button 13
ZMR of terminal 5UB-CPU201 by zoom operation
If the L level is detected, the process proceeds to the flowchart zoom up or zoom down process (step 1-10).

When the work mode is set to rewind, the
When the terminal MREW of the UB-CPU201 detects the L level, the flowchart rewinds! Proceed to A fill (step 1-11). When the work mode is set to light load battery check, in other words, a light load battery check is performed and the voltage information divided from terminal BCI is input manually.
The information is converted into digital information by the A/D converter in the AIN-CPU 200, and the process proceeds to the light load battery check process in the flowchart (step 1-12). When the work mode is set to moving, that is, when the terminal MVL of the 5LIB-CPU 5 201 detects the L level due to the moving target operation using the operation button 13, the flow chart moves to moving target processing (step 1).
-14). Other explanations will be omitted for brevity.

Initial Main Routine In FIG. 44, the flag INITI is
If AL is set to °1°° (step 1
-13), proceed to INITIAL shown in FIG. First, a battery check is performed (step 2-1), the zoom lens barrel is returned to the storage position (step 2-2), and the focus lens is also placed in the storage state (step 2-3). Drive the shutter blade in the closing direction to set it to the initial state (Step 2
-4). Next, the DX data information is °'7” (NOND
If the DX data information is not “°7°°, set N to 4 (step 2-6), and set timer 1 to 1 sec (step 2-5). -7).The film feed motor MF is rotated forward (step 2-8) to wind the film.In order to detect the SSP output in conjunction with the winding of the film, step 2-9) sets the flag TO. Step 210) to detect the state of °゛0°
In the case of °, brake the film feed motor MF (
Step 2-11), set the counter to '1''.Step 2-12), transfer this counter information to 5UB-CP.
Transfer to U201 (step 2-13). In step 2-5, if the DX data information is "°7°°, set the counter to 0" (step 2-14), and transfer this counter information to the 5UB-CPU 201 (
Step 2-15). If the flag TO is "1" in step 2-9, a counter "o" is set (step 2-16).

In the autoload main routine shown in FIG. 44, the flag AL is 1" in the flowchart.
(step 1-7), the 46th
Proceed to autoload as shown.

A battery check is performed (step 3-1), and this battery voltage information is transferred to the 5UB-CPU 201 (step 3-2). The 5UB-CPU 201 displays this battery voltage information on the liquid crystal display. To judge the result of the battery check, step 3-3), if the voltage is less than the predetermined voltage level, the camera is put into an inoperable state, and if it is higher than the predetermined voltage level, to judge whether the DX data is 7° or not.step 3-3). 4) If it is not 7°', it is assumed that it is not a DX film and is transferred to 5LIB-CPL1201. If the DX data is 7゛, set the counter N to ``16'', which corresponds to the top of 4 frames of film (step 3).
-5). Next, set timer 1 to 1 sec (step 3-6), and then rotate film feed motor MF forward (step 3-6).
Step 3-7), and set timer 1 to the timer (Step 3-8). The sprocket rotates in conjunction with film winding, outputs a digital signal, and determines the change in this signal at the terminal SSP (step 3-9). If there is a change in the signal, subtracts 1 from the set N (step 3-9). 10),
Detect the number of counter N (step 3-11), N=O
If not, return to step 3-8 and repeat again °°
When it reaches 0°', set the flag TO to "0°" (step 3-12). Determine the state of the flag To (step 3-13). If it is "o", set the film feed as shown in Figure 46. Stop the feed motor according to the flow (step 3-14).Next, send the autoload end information to 5UB-
Transfer to CPU 201 (Step 315), MAIN-
The operation of the CPU 200 is stopped. If the time set by the timer is exceeded without any change in the signal in step 3-9,
Stop the film feed motor and set the flag TO to 1°°. Step 3-16). Transfer the information that autoloading has not been completed to the 5OB-CPU 201. Step 3-17). Stop operation.

Wake Main Routine In FIG. 44, if the flag WAKE is set to 1°° in the flowchart (steps 1-8),
Proceed to WAKE shown in FIG. 47. A battery check is performed (step 41). Execute the zoom lens barrel initial position setting subroutine (step 4-2), detect the state of the flag To (step 4-3), and if it is "O", execute the focusing lens initial position setting subroutine (step 4-2). 4). Detect the state of the flag TO again (Step 4-5); if it is 0°, control the NTLED to blink at an arbitrary timing and execute NTWAKE (Step 4)
-6) Performs charging control of the strobe capacitor (step 4-7), and sends wake processing completion information to 5UB-C
The data is transferred to the PU 201 (step 4-8). Also,
In step 4-3 and step 4-5, if the state of the flag TO is 1'', it is determined that the 5UB-CPU 201 is malfunctioning.
The error information is transferred to (step 4-9).

In the sleeve main routine FIG. 44, flag 5LEEP is set in the flowchart.
If is set to °“1” (step 1-9
), proceed to 5LEEP shown in FIG. Step 5-1) to execute the zoom lens barrel storage subroutine, flag TO
00 step 5-2), "If it is 0°, execute the focusing storage position set subroutine step 5-3),"
The sleeve processing completion information is transferred to the 5UB-CPU 201 (step 5-4). In step 5-2, if the state of the flag To is 1, it is determined that the 5U is malfunctioning.
Transfer error information to B-CPU 201 (step 4
-9).

In the zoom main routine FIG. 44, the flag ZMR is 1 in the flowchart.
If it is set to °゛ (step 1-1o),
ZOOMl, shown in FIG. 4a: Go.

First, perform a battery check (step 6-1),
ZI is manually performed and FZ is manually performed on ZIDI (step 6-2). Detects zoom operation status and displays MAIN-CP
Detect the state of terminal zoom up ZU of U200 (step 6-3), and if it is 0°, MAXN-CPU20
Terminal ZT information for detecting the zoom position E end of 0 is detected (step 6-4), and if it is "1", the zoom drive motor is rotated forward (step 6-5). Then, set the timer to 5 seconds (Step 6-6), and detect the state of the terminal zoom up ZLI again (Step 6-7).
, If it is "o", detect the terminal zoom position E information of MAIN-CPIJ200 (step 6-8), and if it is 0°, stop the zoom drive motor (step 6-9), and go to MVZ of the moving target subroutine. Proceed (step 6-10). A subroutine for stopping this zoom drive motor is shown in FIG.

Detect the state of terminal zoom up ZU (step 8-
11) If it is °"1", detect the state of terminal ZD (step 6-12), and if it is °1", perform ZMLD (step 6-13). Detect the state of terminal ZU. (Step 6-14), and if it is “1”, the terminal ZD
(step 6-15), and if it is 1°, the camera is made inactive.

In step 6-3, the state of terminal ZD is detected (
Step 6-16), if 0°°, MAIN-CPU2
Detects the terminal ZW that detects the wide angle of the zoom of 00 (step 6-j7), and if it is "1", reverses the zoom drive motor (step 6-18).Then, set the timer to 5 seconds and step 6-19), detect the state of terminal ZD again (step 6-20), and
”, the terminal ZW information of the MAIN-CPU 200 is detected (step 6-21), and if it is “0”, the zoom drive motor is stopped (step 6-22).

In the main routine shown in Figure 44, the flag REW is set to 1 in the flowchart.
If it is set to ゛° (step 1-11),
Proceed to rewind shown in FIG. Rewinding is started by operating the rewind button midway or by detecting a stretch (end of film) in the middle of winding one frame of film.
This is done using the symbols explained in Autoload. Rewinding is performed by driving the film feeding motor, and when rewinding is performed midway through, the film rewinding is stopped with the end tongue from the film cartridge remaining. A description of this rewinding operation will be omitted.

In the battery check main routine in FIG. 44, flag BCR is set to '' in the flowchart.
If it is set to 1°゛ (step 1-12)
, proceed to the BCR shown in FIG.

Perform battery subroutine BC2 (step 7-1)
), transfer this result to the 5UB-CPU 201 (
Step 7-2).

Moving target main routine In FIG. 44, if the flag M■ is set to 1 in the flowchart (step 1-14), the fifth
Proceed to the MV shown in Figure 2. A battery check is performed (step 8-1). The moving target subroutine MVZ2 is executed (step 8-2). Next, a light emitting ED placed on the front surface of the camera corresponding to the direction of the moving target is turned on (step 8-3). Step 8-4), 1 to detect the moving target operation signal output by the moving target operation of the operation button.
If °°, disable the camera. Step 8-
If the value is 0 at 4, the process returns to step 8-2.

5ION main routine In Fig. 44, the flag S1 is
If it is set to 1°° (steps 1-5),
Proceed to Sl shown in FIG. FIG. 53 shows a flowchart S1. First, perform a battery check.

This battery check proceeds to BCI shown in the subroutine of FIG. 71 (step 2-1). Set strobe mode and drive mode settings to 5OB-CPU201
Serial transfer is performed from there to the MAIN-CPU 200 as described above (step 9-2). Similarly, counter information is transferred (step 9-3), information on the number of times of shooting such as interval shooting and snapshot shooting (step 9-4), and set function mode information (step 9-5) are transferred. Then, it is determined whether or not it is normal shooting (step 9-6), and in the case of normal shooting, the MAIN-CPU200+7) terminal Zr (D
7 analog information is converted into digital information by a 6 AD converter that detects it, and ZZ shown in the focal length manual table of FIG. 89 corresponding to this digital information is stored. This 22 is shown as focal length information divided into 24 from the shortest focal length to the longest focal length.

As a result, the moving target information shown in FIG. 54 is input, and this moving target information input is performed as shown in FIG. 73 (steps to B.E).
Photometry correction data, distance measurement correction data from EPROM,
Orcusing correction data, shutter drive correction data, etc. are input (step 1O-2). Photometry is performed (step 1O-3), and then distance measurement is performed. Distance measurement is performed as shown in FIGS. 75 and 76 (step 10-4).

Calculations for shutter control and focusing control are performed from the results of photometry and distance measurement (step 1O-5). Then, in step 106, vararax correction information is calculated from the varalax data table based on the distance information and focal length information stored in the RAM of the MAIN-CPU 200.
), transfers the balax correction information to the 5UB-CPU 201 (step 10-7). Step 1O-8) determines whether the distance i information AFZ is at the short distance warning level or not. If it is not at the short distance 111 warning level, the strobe capacitor is charged as shown in Figure 56. 1O-9), Determine whether or not the zoom operation of the operation button 13 has been performed while charging the strobe.Step 1O-10), If the 7 lag ZINT is "°1°°, it is determined that the zoom operation has been performed, and proceed to 5E. ° If it is 0°°, it is determined that no operation has been performed, and the process proceeds to the next step (Step 1O-11). The distance measurement data is serially transferred from the MAIN-CPU 200 to the 5UB-CPU 201 (Step 1O-12). . Next, the NTLED, which externally displays the direction of the moving target, is turned on to make it possible to visually confirm the distance measurement direction from the subject side (steps 10-13).Next, test mode processing is performed (step 1O). -14) If flag ST is detected and the shutter blade is at the initial position, set "°1°°" and proceed to IIA (
Step 1O-15) If the shutter blade is not at the initial position, it is determined that the shutter blade is not set at the initial position, and error information is sent to the 5UB-CPU2 as the shutter blade is not in the initial position.
01 (step 1O-16).

Step 10-17) to detect whether the swing mode set in the function mode is set, flag 5WING is set, and if it is "1", set flag MEC by 1 degree.
(Step 10-18). Next, focusing drive is performed (step 10-19), and the input state of the switch S1 is detected, and if it is on, the process proceeds to the next step (step 10-20). When switch S1 is input and switch S2 is further input (step 1o
-2t), tli) to detect whether there is an open signal of the barrier 103 of the lens (Step 1O-22);
When the open signal is input, the drive mode is detected (
Step 10-2'3). Drive mode is “°1°”
5 if set to single shooting S or continuous shooting C.
PRINT transfer is performed in order to synchronize the start of photographing operations between the UB-CPU 201 and the MAIN-CPU 200 (
Step 1O-24).

Next, as shown in FIG. 57, the terminal DTRG is set to "L".
” (Step 1O-25), measure 1m5eC (Step 1O-26), detect the ISO data, and if it is 4 to 6, measure 30m5ec, and if it is O to 3, measure 60m5ec, and then Proceed to the step (Step 1O-27). Set the terminal DTRG to ゛°H (Step 1O-28), detect the flag MEC and set it to 0°.
In the case of °, perform focusing drive (step 1O
-29) and performs shutter drive (step 1O-30).
), it is determined whether the drive mode is set to rapid shooting (step 1O-31), and if it is not set to continuous shooting C, the focusing motor is charged to the initial position (step 1O-32). 5UB-CPU20
When the 5UB-CPU 201 receives the charge transfer, it displays a film winding in progress on the liquid crystal display (step 1O-33).

Next, detect the flag C and if it is not 0°° (step 1O-35), set N to 4.Step 10-36
'), set the timer to 500m5ec, step 1O
-37), when the winding of one frame of film is detected, the film feeding motor MF is braked and stopped (step 1O-38).

If flag TO is detected and it is 0°, add 1° to counter C (step 1O-39). If counter C is greater than 39, set it to 39, and if it is less than 39, add 1° to counter C. The number is transferred (step 1O-40) (step 1O-41).

Next, as shown in FIG. 58, flag C is detected (step 10-42), and if it is 0°', the strobe capacitor is charged (step 10-43). Flag To
is detected and if it is “0” (step 1O-44), the flag DRV is detected and if it is other than “°1” (step 1
O-45), detects the switch S1 and if it is off (step 1O-46), erases distance measurement information on the LCD display (step 1O-47) and transfers information to erase photometry information to the 5UB-CPU 201 (Step 1048).

In FIG. 67, the state detection of switch S1 (
Step 1l-1), zoom switch Zυ state detection (
Step 1l-2), the state of the zoom switch ZD is detected (Step 113), and if each is off, the state of the zoom switch ZD is detected.
As shown in Figure 8, reset the I10 port (step 12-1), connect terminals PH3, PHP, FCFG, FTR.
Set G to H level Step 12-2), 20m5
After ec timing (step 12-3), fiili child ps
Set H to H level.Step 12-4), 100m
After 5eC, the operation of the MAIN-CPU 200 is ended (step 12-5).

In FIG. 53, flag INT, 5 in the flowchart
If either POT, +1.5EV, or -1.5EV (7) is set to "1" (from step 9-7 to step 9-10), proceed to Fig. 54 and perform each special shooting. Run mode.

In addition, in the flowchart in FIG. 53, the flag ME,
TE, INT, NIGHT, 5TAR, 5WING, A
Z, MECNT, MEEMD, TEEND, INTCN
If any of T, TV, and AV is set to °1'' (from step 9-11 to step 9-25), proceed to Fig. 59 to Fig. 66 according to each, and perform the respective special shooting. Run mode.

Manual input of DX information is performed according to the DX input subroutine shown in FIG. Set the terminal DXO of the MAIN-CPU 200 to L level (step 1-1), and measure the time (3 msec) for this state to stabilize (
Step 1-2) After the elapse of time, the voltage application state of the terminals DX2 to DX4 is sequentially detected.Step 1-3) The terminal DX
0 to H level (step 1-4), and set the ISO data and DX data to M according to the DX code table shown in Figure 70.
Store in RAM of AIN-CPU 200 (Step 1
-5.6). The ISO data is used when performing exposure calculations, which will be described later. The DX data is used to determine whether a film cartridge without DX information or a film cartridge is not loaded in the camera.

Battery Check Subroutine The battery check operates as shown in the subroutine of FIG. In a BCI that performs a battery check under heavy load, the shutter drive motor MS is driven in the direction in which the shutter closes (step 2-1), and this is done for 30m5ec.
Continuing step 2-2), voltage information divided from the terminal BCI at this time is input (step 2-3). Next, detect the state of flag BCR (step 24),
If the flag BCR is "0", the drive of the shutter drive motor MS is stopped (steps 2-5 to 8), and the AD converter converts the digital information into digital information.
MA the BC corresponding to the battery check table in the figure.
Store in RAM of I N-CPU 200 (Step 2
-9).

B who performs battery check at 1.r.1 office
At C2 (J), without driving the shutter drive motor MS and applying no load, manually input the voltage information divided from the terminal BCI (step 20). Then, in step 2-4, the flag BCR is determined. Now, proceed to '1' and perform step 2-9.In addition, in the table of Figure 72, BCZ
M is set to 4-bit data to be used in the MZBRK2.3 routine for stopping the zoom drive motor.

Moving target position detection subroutine Moving target information is inputted as shown in FIG. 73. In the case of MVZ 1, terminal ZI is detected, and based on this data, table (21 human power - bull) focal length information 2
2. Focus lens position information FZ, exposure correction information Z
Set AEZ (Step 3-1), and set focus lens position information FZ to ZIDl in i, which is used during auto zoom (Step 32). Step 3-3) to detect the terminal MVI; step 3-3) to select the moving target position information MV from the moving target table shown in Table 4 based on these data; step 3-4); (Step 3-5). Others, MVZ2MVZ
3. MVZ4 is performed as shown in the flowchart.

Photometry Timing Chart This photometry is performed as shown in the photometry timing chart of FIG. First, SPOT photometry is performed to measure the brightness at the center of the photographic screen. MAIN-CPU200
<7) Set terminals S/A, CA, and CB to L level and connect to 20m
After 5ec, set CB to H level and perform the first integration with the integrating capacitor for 9m5ec, then set CA to H level and perform the second integration, and measure the time until the voltage of the capacitor reaches the predetermined voltage level. , the brightness is measured by the time SPT.

Next, AVERAGE photometry is performed to measure the brightness of the entire photographic screen. Switch terminal S/A to H level and at the same time set terminals CA and CB to L level, measure 7 m5ec from here, set CB to H level, and set the first integral to 9 m5e.
c. Next, CA is set to H level, a second integration is performed, the time until the voltage of the capacitor reaches a predetermined voltage level is measured, and the brightness is measured based on the time AVT.

Photometry Subroutine This photometry is performed as shown in the photometry subroutine of FIG. First, in order to measure the average brightness of almost the entire subject screen, the average brightness EVAV is set to information obtained by subtracting the number of loops of timer 1 from the photometric reference data EVSFT in the EEPROM (step 4-1). Here, the photometric reference data EVSFT is set as predetermined high brightness information, and is subtracted every time the loop of timer 1 is repeated.
The information will have low brightness. Next, it is determined whether or not the spot shooting mode is selected (step 4-2). In order to measure the central brightness of the subject screen, the central brightness EVsp is added to the photometric standard data EVSFT as spot photometry correction data that corrects the amount of light received by the light receiving area. Timer 2 from SPS FT added information
Set information obtained by subtracting the number of loops (step 4)
3). In the case of spot shooting mode, the central brightness Evsp
sets information obtained by subtracting the number of loops of timer 1 from information obtained by adding spot photometry correction data 5PSFT for correcting the amount of received light according to the light receiving area to photometry reference data EVSFT (step 44).

Focusing subroutine The focusing drive will be explained as shown in FIG. 75. First, calculate t1 from the lens LDP as shown in Table 2 (Step 5-1), set event counter 1, and set M
Set HI to '1'' (step 5-2). Step 5: Rotate the focusing drive motor ML in a high-speed forward direction.
-3) , EVENT that counts LDP2 described later
1 (step 5-4). Detects flags T and ○, determines whether there is a malfunction in EVENTI, and
If it is 0°, it is assumed that there has been a malfunction and the camera is put into an inoperable state, and if it is 0°, the process proceeds to the next step (step 5-5).

The rotation of the focusing drive motor is detected by the photointerrupter (step 5-6), and the rise of the pulse is detected and the event counter is set to 0 (step 5-7).EVENTO counts LDPI (step 5-8). If the flag TO is detected and the flag is "1", the camera is made inactive, and if it is "o", the process proceeds to the next step (step 5-9). Set the focusing drive motor ML to 0FFL (step 5-10), BRAKE the focusing drive motor ML (step 5-11), set 200 microsec to timer 1 and start timing (step 5-12), event counter 0 Set and start, and set MRO=14 (step 5-13), detect the state of timer 1 and when the time is over (step 5-14), turn off the focusing drive motor ML (step 5-15), 7 Rotate the focusing drive motor ML at high speed in the reverse direction (step sub 5-16). Continue this for 8m5ec, step 5-17), and turn off the focusing drive motor ML.
(Step 5-18). Next, the focusing motor ML is rotated forward at a constant voltage (step 5-19), and the seventh
Proceed to Figure 6 and set timer 2 to time step 6-1), E
Execute VENTO (step 6-2), detect flag TO (step 6-3), and if it is 0°, turn the focusing drive motor ML to 0FFu (step 6-4), then set the focusing motor ML to BRAKE (step 6-5), set 200 microsec to timer 1 and start timing (step 6-6). Set event counter 0, start, and MRO=
8 (Step 6-7), timer 2 should be stopped, and the time from start to stop should be set to LD1 (Step 6-8), t2 should be selected from Table 2 (Step 6-9), Timer 1 When the time is over (step 6-10), the focusing drive motor ML is set to 0FF1. , (step 6-11),
Subsequently, the focusing motor ML is rotated in the reverse direction at a constant voltage (step 6-12). This rotation is continued for the time t2 and the temperature data correction TET shown in FIG. It is rotated in the normal direction by voltage (step 6-15). Timer 2 says 1:00 to start Step 6-
16), Execute EVENTO (step 6-17)
. To detect the flag To, step 6-18). If it is "0°", proceed to Fig. 77, and start the focusing drive motor M.
Turn off L, step 7-1), and perform constant voltage reversal of the casing drive motor ML (step 7-1).
2) Stop timer 2 and set the time from start to stop in LDT2 (step 7-3).
Select t3 from Table 3 (step 7-4), select t3 continuously for the time sum of temperature data correction TET shown in FIG. 102 and 5m5e'c (step 7-5),
”.

In Figure 78, focus drive motor ML is set to 0FFL.
(Step 7-6), then the focusing motor ML
BRAKE (step 77), 30m5ec
W Continuing step 78), focusing drive motor M
If L is 0FFL (step 7-9), flag TO is detected (step 7-10), and 0°, the process returns to the main routine.

Focusing Charge Subroutine As shown in FIG. 78, the focusing drive will be explained. To judge the LDP, step 8-1), and if it is not 0°, set the event counter O, and (MRO) = (
LDP) and start it (Step 8-2)
. Reverse the focusing drive motor with constant voltage (step 8-3), and execute EVENTO step 8-4
), flags T and O are detected in step 8-5), "o
"If not, set event counter 1, start it, and set MR1=1. Step 8-6
), execute EVENTI step 87), flag T
, Detect O (step 8-8), turn the focusing drive motor to 0FFL (step 8=9), turn the focusing drive motor into high-speed forward rotation (step 8-10), set and start event counter 1, and set MR.
1 = 1 (step a-1t), set the timer to 1.5
Set m5ec and start it (step 8-12)
, to detect the state of LDPI (step 8-13), “1
When the timer reaches 1.5m5ec, set and start the timer (step 8-14), detect the state of LDPI (step 8-15), and if it is "1", judge the state of the timer (step 8-14). 16) Turn off the focusing drive motor ML (step 7-6), then BRAKE the focusing drive motor ML (step 7-6).
Step 7-7), 30m5ec continuously Step 7-
a), Step 7-9) Turn off the focusing drive motor ML, Step 7-10 to detect the 7 lag T0.
), o''', the process returns to the main routine.

Focusing Wake Subroutine As shown in FIG. 78, the initial setting drive of the focus lens will be explained. The event counter 1 is set and started (MHI) is set to 5 (step 9-1), the focusing drive motor ML is reversed at constant voltage (step 9-2), and then the process proceeds to step 8-7.

Focusing subroutine by zoom As shown in FIG. 78, driving of the initial setting of the focus lens will be explained. Focal length information 22 and focus lens position information FZ,
Step 1O- Enter the correction information ZAEZ for the aperture F value.
1), Next, use FZLD to subtract ZIDI from the focus lens position information FZ.Step 1O-2), set and start event counter 1, and MRI =
Set FZLD (step 1O-3). continue,
To detect the state of FZLD, step 10-4), "o
”, rotate the focusing drive motor ML forward at a constant voltage (step 1O-5),
Execute I (step 1O-6). Step 1O-7) to detect flags T and O; if 0°, set and start event counter O, and set MRO=1
6 (step 1O-8) and execute EVENTO (step 1O-9). Detect the flags T and O (step to-ro); if "o", turn off the focusing drive motor ML (step 10-11)
Then, the focusing drive motor ML is rotated in a high speed reverse direction (step 1O-12). Next, proceed to D.

Focusing Sleeve Subroutine The focusing sleeve subroutine shown in FIG. 79 is carried out as follows. First, the focusing drive motor is rotated forward at high speed (step 1l-1). 100m5
Step 1l-2) to time ec, 10m to timer 1
5ec is set and started (step 1l-3). LDP
Step 1l-4) to detect the rise of the voltage of I,
If it is 1°, timer 1 is set to 10m5ec and the process starts (step 1l-5). The rise of the voltage of LDPI is detected (step 116), and the process returns to step 11-3. The timer is detected in step 11-3 (step 1l-7), and if the timer is over, driving of the focusing drive motor ML is stopped (step 1
1-8 to 11).

LDPI event counter subroutine The LDPI event counter subroutine shown in FIG.
This is a routine for counting the falling edge of I. First, timer 1 is set for 1 sec and starts counting (step 12-1). Step 1: Determine whether or not the rising edge of the predetermined LDPI has been counted.
2-2) If the timer 1 is not counting, it is determined whether the time measurement by the timer 1 has ended or not (step 123); if the time measurement has not ended, the process returns to step 12-2. When the count is completed in step 12-3, flags T and O are set to 0° (step 12-4). In step 12-3, flag To is set to 1° (step 12-5
).

LDP2 event counter subroutine The LDP2 event counter subroutine shown in FIG. 81 uses a pulse-like signal LDP2 that is output as the focus lens moves.
This is a routine to count the pulses of LDP2. First, timer 1 is set for 1 sec, and it starts counting (step 13-1). It detects the rising edge of LDP2. Step 13-3) to detect the falling edge, step 13-4) to determine whether the event counter 1 has finished, and if not, count up the LDPI (step 13-5). is set to 1 sec and starts timing (step 13-6). Step 13-7) to detect the rise of LDP2, and when it becomes "1", turn L
To detect the falling edge of DP2, step 13-8), LD
If the PI count (step 13-9) is a predetermined number, it is determined whether the event counter 1 has ended or not (step 13-10), and when it is determined that the event counter 1 has ended, the flag T,
Set O to “0°°” (step 13-1 t),
Here, in steps 132.3 and 7.8, if the time measurement of time 1 has ended, flags T and O are set to "1°°" (step 13-12.13).If it has not ended, Proceed to next step.

Distance Measurement Subroutine Distance measurement is performed as shown in FIG. In the infrared acquisition method distance measuring device of this example, the infrared light emitting element of the projector emits light multiple times in a pulsed manner, the reflected light from the subject is received by the light receiving element (psD) on the receiver side, and a photocurrent is generated. When the voltage accumulates and reaches a predetermined voltage level, the emission of infrared light is stopped and distance measurement information from the distance measurement device is manually input.

After switching the terminal CTRL of the MAIN-CPU 200 from the H level to the L level and measuring 32 msec, the terminal DATA of the ranging IC changes from the L level to the H level,
The MAIN-CPU 200 detects this and connects the terminal CTRL.
After measuring time t1, the terminal CTRL is changed from L level to H level, distance measurement information is set by switching this terminal CTRL from L level to H level, and after a time period when the distance measurement information becomes stable, the distance measurement information is read. Thereafter, the terminal CTRL is returned to the H level, and this process is repeated thereafter. The second and subsequent distance measurements are started after waiting for t4.

Next, the distance measurement subroutine shown in FIG. 83 will be explained. First, distance measurement correction information AFLEN, AFS is stored in the EEPROM.
FT manually (step 141), flag INF detected (step 14-2), if '0°', terminal IRC
is set to the L level (step 14-3), distance measurement is performed according to the timing chart described above, and the DA
TA is input (step 14-4), and the 6fillj child IRC is set to H level (step 14-5), and AEZ calculation, which will be described later, is performed (step 14-6). next,
It is determined whether or not the AFZ is at the close range shooting limit (Step 14-7). If it is within the shooting range, distance measurement is performed four times (Step 148), and the average of the four distance measurement results is calculated. (Step 14-9). This distance measurement average value is EE
Step 14-10) is calculated with the distance measurement correction information AFLEN read from FROM, and the calculation result is stored in EEPROM.
In step 14-11, the distance measurement correction information AFSET read from
Step s4-1: Determine whether or not the point is at the infinite focus position.
2) If the AFZ does not have a 6° groove, the ranging information is set to 6° (step 14-13).

Strobe Electric Subroutine In strobe shooting mode, the strobe charge mark in the viewfinder lights up and the distance measurement mark turns off.

Next, in order to start strobe charging, MAIN-CPU
The terminals PHP, PH3, and FTRG of 200 are set to H level, and the terminal FCHG FSTP is set to L level. Then, a timer is set for 8 seconds, the state of the main switch and the state of switch S1 are detected, and if there is no input, it is detected whether charging is completed or not. If charging is completed, MATN-CPU 200 is activated to terminate strobe charging. Terminal PHP, P
H3 is set to L level and terminal FCHGFSTP is set to H level to complete charging.

Shutter Drive Subroutine The shutter drive subroutine shown in FIG. 84 will be explained. Step 1: Determine whether the strobe information DAT is °°1″ or not.
5-1), if it is 1°, set timer 2 (step 15-2); if not 1°, proceed to the next step without setting timer 2 (step 15-3). Flags T, O
is set to 0° (step 15-4). The shutter drive motor is rotated at a constant voltage in the direction in which the shutter closes (step 15-5). This continues for 8 m5ec (step 15-6), and then the shutter drive motor is rotated forward in the direction in which the shutter opens at the first constant voltage (step 15-7.8). The shutter drive time continues for 5DTI, which is set based on the photometry result information, distance measurement result information, etc. (step 15-9). The shutter drive motor is switched from the first constant voltage to the second constant voltage and rotates forward (step 15).
-10), timer 1 is set to 50m5ec and started (step 15-11). The shutter trigger ST outputted when it reaches the pinhole opening of the shutter is detected (step 1512), and if it is 0°, the timer 2 is started to clock the timer 2 (step 15-13), and the process proceeds to FIG.

In FIG. 85, if the flag STC is '0°' (step 16-1), the shutter driving time 5DT2 is continued (step 16-2). After measuring the time, the shutter drive motor is turned off (Step 16-3), and the shutter drive motor is driven in reverse with the second constant voltage (Step 16-4).
Step 16-5) to detect the state of flag 5PRG;
If not 0°°, 5DT3i continues with step 16-6.
), turn off the shutter drive motor step 16-7)
, performs BRAKE on the shutter drive motor (step 16-8), and 1m5eci! Continued step 16-9)
, turn off the shutter drive motor (step 16-10)
, the shutter drive motor is driven in reverse by the second constant voltage (step 16-11), and it is determined whether the strobe information DAT is 2 or not (step 16-12), and if it is not 2°, it is 5PRG. Steps 16-13), “°
If the value is 0°, the shutter trigger ST is detected (step 16-14), and if it is 1'', the shutter drive motor is turned off (step 165), and the flag FTRG is set to 1°.
° and ends (step 16-16).

Exposure Calculation Subroutine The exposure calculation subroutine is performed as shown in FIGS. 86 to 94. First, set the backlight detection flag BL to °lO°.
It is determined whether spot photometry is being used (step 17-2). In the case of average photometry, the difference BLJ between the overall brightness EVAV and the center brightness EVSP is calculated (step 17-3), and the BLJ (7) value is EEPRO.
If it is smaller than the predetermined value stored in M, it is not determined that there is backlight, and if it is larger, the backlight detection flag BL is set to '1' (step 17-4), and the photometric value EVZ is set as the overall brightness EVA.
Perform a predetermined calculation based on V (step 17-5)
. Next, focal length information Z is obtained by detecting the position of the zoom lens barrel.
Enter AEZ (step 17-6), focal length information Z
Calculate photometric value EVZ including AEZ and ISO data (
step 177). Next, it is determined whether the exposure mode is +1.5EV correction mode or not (Step 17-8), 0°.

In the case of , it is determined that the +1.5EV correction mode is not set, and it is determined whether the -1.5EV correction mode is set (step 17-9). If it is °°0°°, the -1.5EV correction mode is set. It is assumed that it has not been set. Set flag TEB to 0°
In step 17-10), the shutter is continuously opened and closed a predetermined number of times in the same shooting screen, and the flag 5WING is set to determine whether or not the swing mode is set to shoot a golf swing or the like. judge the condition,
“If it is 0°, it is determined that the swing mode is not selected (Step 17-11), and then the flag ME is set for multiple exposure mode, and the flag DRV is set for quick shooting mode, and each flag is determined (Step 17-12). , flag AE if multiple exposure mode and snapshot mode are not set.
Set ZL to °°0'' (step 17-13) and proceed to FIG.

In FIG. 87, FMZ is calculated from the distance measurement data obtained from the distance measurement subroutine (step 18-1), and AEFM is set based on the AEFM table shown in Table 9 (step 18-2).

Table 9 AEFM Table AEFM is calculated again including the focal length end 17ZFMZ and ISO data (step 183). Next, the photometric value EVZ is detected (step 18-4), and the distance measurement value AEF
Step 18-5) to detect M, valve flag BL
Set B to 0'' (Step 18-6), detect the zoom position information ZZ (Step 18-7), and if the camera is on the wide-angle side, proceed to A2 in Fig. 88. If it is on the telephoto side, EVZMA
X=38, step 18-8), detect 7 lag TE (step 18-9), if "o", detect flag TV (step 18-10), and if in TV shooting mode, Set EVZ=48 (step 18-11
). If you are not in TV shooting mode, EVZ will be detected (
Step 18-12), EVZ is higher than EVZMAX
- Judging that it is bright, proceed to Pl in Fig. 89.

If EVZ is thicker than EVZMAX, it is determined that it is dark and the process advances to P4 in FIG.

In FIG. 88, the flag TV is detected (19-1), and if it is the TV flag, EVZ is set to 38 (step 1).
9-2), after that, the process of step 19-34 is performed and the 90th
Proceed to 22 in the figure. Also, if it is not in TV mode, the flag AFZ is detected in step 19-5), and in the case of short distance, the flag TE is detected in step 19-6).
1”, set the valve mode (step 1).
9-7), perform the process of step +9-3.4 and the 90th
Proceed to 22 in the figure.

In step 19-5, in case of long distance, step 19-
8, detects the flag TE (step 1)
9-9), "If it is 1°, set the valve mode (step 19-10), and step 19-11.12
The process proceeds to P3 in FIG. 90. Step 19-9
If the flag TE is °°0°, the flag EVZ is detected (step 19-13.14), and if it is determined that it is bright, the process of step 19-15 is performed and the process returns to Pl in FIG. move on.

In Figure 89, step 2 sets 5PRG to °'0'.
O-1), set STC to '°0°° Step 2O-2
), Step 2O-3) to detect the strobe flag, O
In the case of N, AETI is obtained from the EVZ table in Figure 103.
Similarly, FMT is set in step 20-5), AET is determined in step 20-6, and FMT is determined in step 20-7. On the EVZ table, AETI-AET4 is set by EVZ, F
Only MT is set by AEFM.

In step 20-8, the relationship between FMT and AET is determined, and if AMT is less than AET, the process of step 20-9.10 is performed and the process proceeds to A3 in FIG. 91.

In step 8, if FMT is greater than or equal to AET, then F
To make MT and AET the same, step 2O-11) and steps 20-9 and 10 are performed, and the process proceeds to A3 in FIG. 91.

The flag BL is detected in step 12 (step 2O-
12) In the case of backlight, the process proceeds to step 20-4 and is similarly processed.

If the strobe is OFF in step 20-3, or if the strobe is turned off in step 20-12, the A
Set ETI Step 2O-13), Step 2
0-14.15 is performed and the process proceeds to A3 in FIG. 91.

In FIG. 90, from P2, set 1 to 5PRG in step 21-1 and set 1 to STC in step 21-2, and from P3, set 2 to 5PRG in step 21-3, and set STC in step 21-4. Set 2 to P4, set 3 to 5PRG at step 21-5, and set 3 to 5PRG from step 21-6.
Set 3 to STC. EVZ in step 21-7
If EVZ is larger than TEBZ, set TEB to 1 (step 218), detect the strobe flag (step 2l-9), and if EVZ is 1'°, set TEB to 1 (step 2l). -10),”O
If ゛゛, set AET. Step 21-10
In this case, the flag TEB is "1", and step 2
In step 1-9, the strobe is in auto mode, the flag TEB is detected in step 2l-11), and if it is 1°, the flag N I GHT is detected in step 21-1:2).
EVZ to TEBZk: Step 2l-13), TE
Set B to o (step 2l-14) and set AET. At step 2l-It, flag TEB is set to °°0°'
In this case, the flag BL is detected (step 21-1
5) If it is "1", set AET.

The AET set detects flag 5PRG (21-1
6), Set AET2 to AET4 from the EVZ table according to flag 5PRG1 to 3, and set AET to AET2 to AET4.
Set it to AET4. AEFM is compared with EVZMAX (step 2l-17), if AEFM is large, step 2118 is performed, flag BLB is detected (step 2l-19), and in the case of valve mode, step 11-
20. Do 21 and proceed to Figure 91, then Figure 92 and 93.
The flow shown in the figure is executed and returns.

If AEFM is less than EVZMAX in step 21-17, FMT is set from the EVZ table, steps 2l-22), steps 21-23, and 24 are performed, and the process proceeds to step 21-19.

In step 21-9, if the strobe is OFF, steps 2+-25 to 30 are performed, and the process proceeds to step 21-19.

Zoom Sleeve Subroutine Figure 94 shows the zoom sleeve subroutine.
Input the focus position information ZZ, focus lens position information FZ, and exposure compensation information ZAEZ from the I table (Step 22-1), and replace the FZ with ZIDI (Step 2).
2-2), flags T and O are set to "0" (step 223). The storage state of the zoom lens barrel is determined by detecting the state of the terminal ZC for detecting the zoom close end (
Step 22-4), if "1", the zoom drive motor MZ is reversed as it is not stored (step 22-4).
5) Set the timer to 5 seconds and start timing (
Step 22-6). It is determined whether the time is over or not (step 227); if the time is within the time, the state of the terminal ZC is detected (step 22-8); if "o" is detected, the zoom drive motor MZ is stopped (step 22-8).
9). If the time set in step 22-7 is exceeded, the zoom drive motor MZ is stopped (step 22-1).
0), flags T and O are set to “1+” (22-11
).

Zoom Waif Subroutine FIG. 95 shows the zoom waifu subroutine.
l ZID the focus lens position information FZ from the table
I (step 23-1). Next, flag T,
0 to 0'' (step 23-2), detects the wide-angle end position of the zoom lens barrel and the state of the terminal ZW for detecting the zoom wide-angle end (step 23-3), and detects "1".
”, the zoom drive motor MZ is rotated in the normal direction as it is not set at the wide-angle end position (step 23-4).
, sets the timer to 500 m5ec and starts timing (step 23-5). It is determined whether the time is over or not (step 23-6); if it is within the time, the state of the terminal ZW is detected (step 23-7); and if "0°" is detected, the zoom drive motor MZ is stopped (step 23).
-8).

If the time set in step 23-6 is exceeded, the zoom drive motor MZ is stopped (step 23-9), and the zoom sleeve subroutine is executed (step 23-1).
0) Set flags T and O to 1°.

(23-11).

The flow of stopping the zoom drive motor MZ in FIGS. 94 and 95 is shown in FIG. 96.

FIG. 97 shows a self-timer subroutine, and a description of this flow will be omitted.

Test subroutine The test subroutine is shown in FIGS. 98 to 101,
When the test mode is set, photometry information and distance measurement information are displayed on the external display liquid crystal, and the performance of the distance measurement results and photometry results is confirmed. In FIG. 98, when the test mode is set and the flag TEST is 1, the distance measurement information AFZ of the distance measurement result and the photometry information 22 of the photometry result are
The information is transferred from the AIN-CPU 200 to the 5UB-CPU 201, and the information transferred to the 5UB-CPU 201 is displayed on the liquid crystal display (step 24-12). flag no.
RM is detected (step 24-3), and if it is "1°", the shooting resolution mode is performed.Flag INF is detected (step 24-4), and if it is "1", the 9th
Proceeding to step 24 in FIG. 9, a photometry test is performed. Flag N
Detecting I GHT (step 24-5), '1°
', the process goes to 25 in Figure 99, where a battery check and temperature detection test are performed.
Proceeding to step 26 in the figure, a focus detection test is performed.

[Set the input/output terminals as explained in 5UB-CPU Routine Figure 104 for MA I N-CPU71/-Step 1-1)
, clear the RAM (step 1-2), turn on the external LCD and the LCD in the viewfinder (step 1-3)
. Detects terminal LIVE (step 1-4) and turns OFF
In this case, make the release mark blink (Steps 1-5),
Step 1-6) to detect terminal SIL, release 1st
When the signal is ON, display A shown in FIG. 120 is performed (step 1-7). Display A displays the film counter and film status, and the film status is displayed by flag C, which is always turned off when flag C is 0''.

Detect the terminal SIL again (Step 18), and if the first release signal is OFF, the MA from the 5UBCPU 201
Prepare for transfer to IN-CPU 200 (Step 1-
9), perform initial transfer (steps 1-10),
Step 1-11) to detect terminal TEST1, terminal T
If EST1 is 0°, set (TEST) to 1° (step 1-12) and set the terminal TESTI to 1
”, set (TEST) to “0°” (step 1-13) and proceed to FIG. 110.

In FIG. 110, display A is performed (step 6-1), the terminal PHM is set to 1 (step 6-2), each flag is cleared (step 6-3), and the terminal LIME is detected (step 6-4). , if it is L level, detect the flag MEERR (Step 6-5); if MEERR is "°1'°, set the flag MEERR to °"0'° and proceed to 6B; if MEERR is '0°" Proceed to Figure 105.

In step 6-4, if terminal LIVE is at H level, terminal SST is detected (step 6-7), L level 71/(
7) If MAIN-CPU200 to 5UB-CPU
The information is transferred to 201, and each flag is set based on the information (step 68). Detect the flag CHG (step 6-9); if the film is charged at "1", detect the flag C (step 6-10);
If flag C is not "0", charge processing is performed (step 6-11). (Step 6-9) flag CHG
If it is 0°, the flag REWST is detected in step 6-12), if it is "1", the process goes to 2A in FIG. 106, and if it is o°, the flag ERR is detected in step 6-13). , “If it is 1°゛, perform error processing,
If “o”, flag CF is detected in step 6-
14) If the value is 1°, counter display processing is performed (step 6-15).

In step 6-14, if the flag CF is °“o゛°, the flag LCDF is detected.Step 6-16), 1°
In the case of °, LCD display processing such as BC, AE, AF, etc. is performed (step 6-17), and in the case of °゛0'', the flag MV is displayed.
If P is detected (Step 6-18), and if it is "1", MV display processing is performed (Step 6-19).

In step 6-18, if the flag MVP is °'o'', the flag 5WERR is detected (step 620), and in the case of an error, error processing is performed (step 6-21);
When the terminal MAINL is detected (Step 6-22) and the main switch is turned OFF, the flag 5WERR is set to °°0.
°° (step 6-23) and proceed to FIG.

In FIG. 105, the terminal PHM is set to H level (step 0-1), and the terminal MAINL is set to the H level (step 0-2).
), if the main switch is OFF, perform a mode reset (steps 0-3), set the flag NBC to 0'° (steps 0-4), set the terminal PHM to H level again (steps 0-5), Terminal LIVE (7) ON, OF
F is detected (steps 0-6), and if it is ON, the 11th
Proceed to figure 0, and if it is OFF, detect flag 5LWK (steps 0-7), and if it is a waiter, flag 5WER is detected.
R is detected (step 08), and if there is no error, sleeve processing is performed (step 0-9), and step 0-
Proceed to step 5. 5WER in case of error in steps 0-8
Set R to “o” (steps 0-10), 5UB-
Set the interrupt return level of the CPIJ201 from 5TOP mode to the opposite of the current state of the terminal SB (steps 0-11), and set the interrupt return level of the terminal MAINL to 0.
"Nishiku step 0-12), terminal 51 = L, MVL,
ZML, MREW+7) Set the interrupt return level” o
"Step 0-13), execute 5TOP mode Step 0-14), detect the set interrupt return level (Step 0-15), and if the interrupt return level is reached, 5TOP mode of 5UB-CPU201 The state is canceled and the process proceeds to step O-1.

In steps 0-7, if it is a sleeve, detect the terminal MREW (steps 0-16), and if it is ON, the 106th terminal MREW is detected (steps 0-16).
Proceeding to the figure, if it is OFF, detect flag C (steps 0-17), if it is 0°, detect terminal SB (steps 0-18), and if the back cover is open, sets the flag AL to 1" (step 0-19). If the camera back is closed, the flag AL is detected (step 0-2).
0), performs a battery check in steps 0-21 to 25, detects flag BC (step 0-26), and sets flag AL to 0 if the battery voltage is below a predetermined voltage (step 0-27); The process proceeds to steps 0-11, and if the battery voltage is higher than the predetermined voltage, the process proceeds to FIG. 107.

If the terminal MAINL is at L level in step 0-2, the terminal LIVE is detected (step 0-28), 0N(
7), proceed to Fig. 110, and if it is OFF, detect the terminal MREW (step 0-29: 1.0N (7)
), proceed to Fig. 106, and if it is OFF, detect the flag NEC (step 0 = 30), and if it is "o", set NBC to 1 (steps 0-31).
For example, perform a battery check and transfer the information in a light load state where peripheral devices are not operating (step 0-
32), the flag BC is detected (step 033), and if the battery voltage is below a predetermined voltage, the entire LCD is turned off (steps 0-34), and if the battery voltage is above a predetermined voltage, the flag C is detected (step 0-34). 0-35), “0゛°
If not, step 0- to detect flag 5LWK.
36), in the case of a sleeve, proceed to Fig. 108.

In this way, the first battery check means is configured to perform a light load battery check based on the input of the main switch. In order to perform a battery check under heavy load conditions when peripheral equipment is operating, it is detected in advance whether the battery voltage is at a level that can prevent the electronic control unit from malfunctioning or running out of control due to a sudden battery voltage drop. Check it out. Therefore, the battery check can prevent malfunctions and runaways of the electronic control device, and in the case of a waiter, the terminal SIL can be detected in steps 0-37.
), if the 1st release signal is input, the 10th release signal is input.
Proceeding to FIG. 9, if there is no manual input, the terminal ZML is detected (step 0-38), and if the zoom operation signal is manually input, the process proceeds to FIG. 115. If the zoom operation signal is not manually input, terminal MVL is detected (steps 0-39); if the MV operation signal is manually input, the process proceeds to FIG. 116; if the MV operation signal is not manually input, the process proceeds to FIG. In step 4041, xeyIA processing is performed, terminal SQL is detected (steps 0-42), and if the first release signal is manually input, the process proceeds to FIG. 109, and if the first release signal is not manually input. If so, proceed to Figure 110.

Further, in step 0-35, if flag C is 0°', terminal SB is detected (0-43), and if the camera back is open, flag AL is set to 1 (step 0-44). ), proceed to step 0-36, detect the flag AL if it is in the closed state (step 0-45), proceed to step 0-36 if not autoload, and proceed to Fig. 107 in case of autoload. move on.

In Figure 106, preparations for transfer are made (step 2-1).
, 5UB=- A REW transfer is performed from the CPU 201 to the MAIN CPU 200 (step 22), a counter 1 transfer is performed (step 23), and a motor reset is performed (step 2-4). Set the terminal PHM to H level (step 2-5) and clear each flag (step 2-5).
-6). Display that rewinding is in progress (step 2-7)
), to detect the terminal LIVE (step 28), MAIN
-If the CPU power monitor is OFF, set the flag REWERR to 1 in step 29), and set MAIN- in step 2-8.
If the CPU power monitor is ON, detect the terminal SST (step 2-10), and if SST is present, MATN-
The counter is transferred from the CPU 200 to the 5OB-CPU 201 (step 2-11), the flag CF is detected (step 2-12), and if it is 1°, the counter is processed (step 2-13); -7, and if it is "o", set the A timer to 10 seconds and start.Step 2-14), display B shown in Fig. 121 is performed (step 2-15.).Display B is AL
These include error display, back cover display, and REW error display.

Detect terminal SB (step 2-16); if the back cover is open, set flag AL to 1 (step 2-17)
, set flag C to O (step 2-18), clear all flags (step 2-19), detect flag ERR (step 220), and in case of error, step 2-3
The process proceeds to 0, and if there is no error, the process proceeds to FIG.

If the back cover is closed in step 2-16, the terminal LI
Step 2-21) to detect VE, MArN-CPU
If the power supply monitor is OFF, the flag REWERR is detected (Step 2-22), and in the case of an error, the terminal S1,
When L is detected (Step 223), the first release signal is O.
In the case of N, the process advances to step 2-1 and rewind processing is performed again.

In step 2-22, if there is no error, flag C is set to O (step 2-24), and the terminal MREW is detected (step 2-25); if it is ON, proceed to step 2-1; if it is OFF, When the terminal MAINL is detected (Step 2-26), if the main switch is ON, proceed to Step 2-15 until the A timer times out;
If the time is over, proceed to step 2-30.

Set the interrupt return level of terminals MAINL and SB (step 2-30), terminals SIL, MVL, ZML, M
Set the REW interrupt return level to 0°° Step 2
-31), Step 2-32 to execute 5TOP mode
), detects the set interrupt return (step 2-3
3) When the interrupt return level is reached, 5UB-CP
Release the 5TOP mode state of U201 and step 2-1
Proceed to step 4.

In Figure 107, preparations for transfer are made (step 3-1).
, 5UB-A from CPU201 to MAINCPU200
Perform L transfer (step 3-2), clear each flag (step 33), and perform BC transfer (step 3).
-4). When flag BC is detected (step 3-5), if the battery voltage is below a predetermined voltage, the process proceeds to FIG. Set the terminal PHM to H level (step 3-6), set 50m5ec (3
-7), Do not display during autoload with N0NAL.

The second battery check means performs a heavy load battery check by driving a peripheral device after a light load battery check. Configured to perform a battery check of the load. In this way, since the first battery check means performs a light load battery check, and then the second battery check means performs a heavy load battery check, the first battery check means performs a battery check. When the power supply voltage drops below a predetermined value, the operation of the electronic control device can be stopped, and a battery check can prevent the electronic control device from malfunctioning or running out of control.

In addition, since the second battery check means is configured to perform a heavy load battery check in which electricity is supplied to drive the shutter blades in the closing direction, the camera does not operate during this battery check, and the camera does not operate at a certain level. It can be diagnosed by allowing current to flow and by easily and accurately detecting the power supply voltage.

Detect terminal LIVE 3-8), MA I N-CP
If the U power supply monitor is OFF, set the flag ALERR to 1 (Step 3-9), set the autoload error display, proceed to 2B in Fig. 106, and turn on MAIN in Step 3-8.
- If the CPU power monitor is ON, detect terminal SST (Step 3-11); if SST is absent, display autoloading (Step 3-12), then proceed to Step 3-8, and SST is detected. If yes, MA I N-C
Serial transfer from PU200 to 5UB-CPU201 (
AL termination, N0NAL transfer, or AL error transfer) is performed (step 3-13). Flag ALE
RR is detected (step 314), and if there is an autoload error, the process proceeds to step 3-10; if there is no error, the flag ALEND is detected (step 3-15);
When autoloading is completed normally, flag C is set to 1 (step 3-16), and a display indicating that autoloading has been completed successfully is displayed (step 3-17). If there is no film in step 3-15, autoloading is not performed. (Step 3-18).

In Figure 108, flag clear (SWERR and 5WEN
D) (step 4-1) and prepare for transfer (
Step 4-2), detects flag 5LWK (Step 4-3), performs WAKE transfer if it is sleeve (main switch off state) (Step 4-4), and
Transfer is performed (step 4-5). Flag BC is detected (step 4-6), and if the battery is below a predetermined voltage by this second battery check means, the process proceeds to FIG. 105, and if the battery is above a predetermined voltage, the terminal PHM is set to H.
level (step 4-7).

Further, in the case of the waiter (main switch on state) in step 4-3, 5LEEP transfer is performed (step 4-8), and the process proceeds to step 4-7.

Detect the terminal LIVE (step 4-9), if the MAIN-CPU power supply monitor is OFF, check the flag 5LWK (step 4-10), if there is a waiter error, check 6B in Figure 110
If there is a sleeve error, error processing is performed (step 4-11), and the process returns. MAI in step 4-9
If the N-CPU power monitor is ON, the terminal SST is detected (step 4-12); if SST is absent, the process proceeds to step 4-9; if SST is present, the MAIN-CP
SW end transfer or SW error transfer is performed from U200 to 5UB-CPU201 (step 4-13)
. Detecting flag 5WERR (step 4-14),
If there is an error, proceed to step 4-10; if not, proceed to detect flag 5LWK (step 4-15)
, if sleeve processing is completed, set flag 5LWK to 0,
The sleeve is set (step 4-16), the display in the viewfinder is turned off (step 4-17), and the process returns.

If the waiter processing is completed in step 4-15, set the flag 5LWK to 1 and set the waiter in step 4-1.
8), perform display I in Fig. 122 (step 4-19).
), this display I initializes the moving target and vararax correction, and proceeds to FIG. 105.

In Figure 109, preparations for transfer are made (step 5-1).
, detects the flag TEST (step 5-2), and sets “1
In the case of ``O'', the process proceeds to FIG. 117, and in the case of ``O'', S1 transfer is performed (step 5-3) and
to H level (step 54), and perform BC transfer (
Step 5-5).

Flag BC is detected (step 5-6), and if the battery is below a predetermined voltage, the process proceeds to step 5-32, and if the battery is above a predetermined voltage, the process proceeds to step 57. -10, performs set transfer, detects flag BC (step 5-11), detects flag BC again, detects flag FUNC if the voltage is below a predetermined voltage (step 5-12), and transfers the function. In the case of the interval mode, the process proceeds to step 5-35, and in other modes, the process proceeds to step 5-13. If the battery voltage is higher than the predetermined battery voltage, display A is displayed (step 5-13).

5-14), MAIN-CPL to detect terminal LIVE
If the I power supply monitor is OFF, proceed to step 535, and in step 5-14, the MA I N-CPU power supply monitor is turned on.
In the case of step 5-15), the terminal SST is detected.
If SST is null, proceed to step 5-13 and set SST.
If there is, AE, AF, PRINT, ERR, ME
WORKMV, Para, TESTD, and 5WERR are transferred (step 5-16), error judgment is performed (step 5-17), flag ST is detected (step 5-18), and "If 1° Proceed to 6A in Fig. 110. If flag ST is 0°, flag PRINT is detected (step 5-19); if flag ST is '0', flag MEWORK is detected (step 5-20); °“
If it is, go to Figure 111, and if it is '0°', flag T
ESTD is detected (step 5-21), and if it is “0゛°, proceed to step 5-13, and if it is “1”, perform TEST transfer (step 5-22), and set the flag T.
Set ESTD to "0°" and proceed to step 5-13.

In step 5-19, if it is '1゛°, flag DRV is detected (step 5-24), "°0°" or 1°°.
If so, proceed to step 5-38 for single or continuous shooting, and for 2°, set the timer to 10 seconds with self 1 and step 5-38.
25), '3°' sets the timer 3sec in self 2. Step 5-26) Once these settings are done, the flag PRINT is set to 0 (step 5-27).
, timer processing is performed (step 5-28), and display processing (step 5-29) is performed.

If the terminal LIVE is detected (5-30), the MAIN CPU power monitor is OFF, a self-cancellation display is performed (step 5-31), and the flag MECNT is detected (step 5-32). Proceed to 5-3 to detect the terminal LIVE if it is “1”.
3), if the MAIN-CPU power monitor is OFF, the first
Proceed to Figure 11. MAIN-CpLI in step 5-30
If the power monitor is ON, detect the terminal SST (step 5-34), if SST is absent, step 5-28)
If SST is present, transfer is performed (step 5-35), and when the flag PRINT is detected, step 5
-36), if the value is 0°, the process proceeds to step 5-31; if the value is 1°, the function is displayed (step 5-37).

In steps 38 to 42, flag FUNC is detected and '0 to
5, 7, 8.9'', go to Figure 110, 10''
If it is 11°, go to Figure 111, and if it is 11°, go to Figure 114.
If it is "12", go to Figure 113 and go to 6°
If so, proceed to FIG. 111, and if not, detect the flag MECNT (step 5-43).
In the case of "o", the process proceeds to FIG. 105, and in the case of "1", the process proceeds to FIG. 111.

In Fig. 111, the terminal LIVE is detected 71), MA
IN-CPU power monitor 0N (7) flag SST
If it is "°0°", transfer is performed (step 73), error judgment is performed (step 74), and flag ST is detected (step 7-2).
-5), if it is '1', detect the flag 5WERR (step 7-6); if it is '0', go to Fig. 110;
° If "1", proceed to step 7-28. Step 7
-4 error judgment routine is shown in FIG. 112.

If °“0'' in step 7-5, flag REWST
is detected (step 7-7), and in the case of "t", the process proceeds to FIG. 113, and in the case of "o", display B is performed (step 7-8), and the process proceeds to step 7-1.

If the MAIN-CPU power supply monitor is FF in step 7-1, the flag DRV is detected in step 7-9), “
M for continuous shooting at 1°° and swing mode 5WING
Step 710), proceed to Figure 105,
If it is not "1", flag 5WING is detected (step 7-11). In step 7-11, °“1”
In the case of 0°, the process advances to step 7-10, and in the case of 0°', the process of step 7-12.13 is performed, and ME display processing is performed (step 7-14).

The flag K is detected (step 7-15), and if it is 0', the ME is reset (step 7-16), and the process goes to step 7-31; if it is not "o", the terminal MAI is
If NL is detected (step 7-17), if it is H level, proceed to step 7-30, if it is L level, the terminal SIL
(Step 7-18), ) (If the level is high, the terminal ZML is detected (step 7-19); if the level is H, the terminal MVL is detected (step 7-20); if the level is H, the terminal MVL is detected (step 7-20); 22 is performed and the process proceeds to step 7-15. If the level is reached in steps 18 to 20, the process proceeds to FIG. 109.

At step 7-23 flag PRINT9MVFSWER
Clear R to detect terminal LIVE Step 7-
24), If the MAIN-CPU power supply monitor is OFF, proceed to step 7-15; if it is ON, proceed to step 7-25), and if it is 1, proceed to step 7-25).
If the value is 0, the transfer is performed (step 7-26). Detect terminal MVP (Step 7-27)
, If "i", perform MV display processing (step 7-28), proceed to step 7-24, and if "0°", detect 5WERR (step 7-29),
If the error is 1°, proceed to step 724, and if the error is 1°, release the ME (step 7-30) and connect the terminal LIV.
Step 7-31), MAIN-CPU
If the power monitor is OFF, set the flag MECNT to 01 and set the flag MEEND to 1 (Step 7-32), set the transfer preparation, follow transfer, and set transfer flag PHM to 1 (Step 7-33), and set the flag 5WERR.
is detected (step 7-34), the flag MEERR is set to 1 (step 7-35), and the process proceeds to FIG.

In FIG. 113, flags MVF, PRINTCHG, R
Clear EWST CF, INTVCNT, and LCDF (step 8-1), perform interval display (step 8-2), detect terminal LIVE (8-3), M
If the AIN-CPtJ power supply monitor is OFF, proceed to step 8-4) to release FUNC and step 8-17, and if the MAIN-CPU power supply monitor is ON in step 8-3, to detect the terminal SST (step 8-4). 5), SS
If T is absent, the process proceeds to step 8-2, and if SST is present, transfer is performed (step 86), error judgment is performed (step 87), flag ST is detected (step 8-8), If "1°", proceed to FIG. 110; if "o", detect flag CHG (step 8-9); if 1°, perform CHG processing of film charge (step 8-10); The process proceeds to step 8-1, and if it is 0'', the flag REWST is detected (step 8-11). In this step 8-11, “1゛°
In this case, release the FUNC (step 8-12),
Proceed to Fig. 106, and if the value is 0°, the flag CF is detected (Step 8-13); if the value is 0'°, the process proceeds to step 8-2; if it is 1'°, set K to -1. to detect (step 8-14), to detect (step 8-15),
°”, reset the interval (step 8-16), clear the AF display and AE display in the viewfinder (step 8-17), and set the flag CF to 0 (
Step 8-18), proceed to FIG.

If K is not 0° in step 8-15, a timer is set (step B-19), terminal MAIN is detected (step 8-20), and the main switch is set to 1".
If it is FF, proceed to step 8-4, and if it is 0° and the main switch is ON, perform timer processing (step 8-2).
1), performs interval display processing (step 8-2)
2) Detect flag I NTVCNT in step 8-
23), “If the time is 1°°, the timer is determined in step 8-24, and if it is less than the set time, the timer is determined in step 8-1.
In the above case, the process proceeds to step 8-20.

At step 8-23, flag I NTVCNT is set to "o".
”, the terminal LIVE should be detected 8-25),
If the MA I N-CPU power supply monitor is 0FF (7), the timer is determined in step 8-26, and if it is less than the set time, the flag I NTVCNT is set to 1 in step 8-27), step 8-28~ Setting is performed in step 31, and the process proceeds to step 8-20.

In FIG. 114, the TE transfer of steps 9-1 to 3 is performed, and in this TE transfer, a PRINT transfer is normally received, a timer is started (step 9-4), and the TE transfer is performed again in steps 9-5 to 9-3. Performs TE transfer. Then, the process of step 8.9 is performed, and the timer process (step 9
-10), Performs TE display processing (step 9-11) and detects terminal LIVE.Step 9-12), MAI
If N-CPU power monitor is OFF, step 9-13
If the terminal MAIN is detected in step 9-13), and the time is over in step 9-14, steps 15-1
8 and proceeds to FIG. 110.

In FIG. 115, transfer preparation (step 1O-1), zoom transfer (step 1O-2), BC transfer (step 10
-3) and proceed to Figure 110.

In FIG. 116, transfer preparation (step 111), MV transfer (step 1l-2), BC transfer (step 10-3),
) and proceed to Figure 110.

In FIG. 117, TEST transfer (step 121), function transfer (step 122), flag NORM
In the case of "o", the process of steps 12-4 to 7 is performed and the process proceeds to FIG. 110. As a result, the test data display 1 shown in FIG.
2 will be carried out.

Transfer preparation subroutine For transfer preparation, as shown in FIG.
level, step t-i), set the terminal PHM to L level, step 1-2), perform direct reading in step 1-3.4, and set terminal R3TO to H level (step 1).
-5), Return.

Error subroutine error display is as shown in Fig. 119.
Set and start the timer (Step 2-1), display an error display for the timer setting time (Step 2-2.3), detect the terminal LIVE (Step 2-4), and cancel the error display if it is OFF. (Step 2-5). Then,
Prepare for transfer (step 2-6), perform sleeve transfer (step 2-7), set J child PHM to H level (step 2-8), perform transfer in steps 2-9 to 11, and If the terminal LIVE is at L level in step 2-9, set it to the sleeve state (step 2-12).
), return.

[Effects of the Invention] As described above, in the invention according to claim 1, the distance measuring unit rotates about a predetermined axis as a fulcrum in conjunction with the operation of the direction changing means, changes the distance measuring direction, and performs distance measuring. Since the points are changed, the distance measuring unit rotates around the axis, making it easy to secure movement space. Further, since the direction changing means is operated in a predetermined direction by the feeding means and the moving position of the direction changing means is held by the holding means, the structure for moving the distance measuring unit is simple and the operability is improved.

Further, in the invention as claimed in claim 2, the release means operates in conjunction with the off operation of the main switch of the camera to release the holding of the holding means and return the direction changing means to the initial position. When the process is finished, the distance measuring unit returns to the initial position, and when the camera is to be used again, the distance measuring unit is in the initial position, providing good operability.

[Brief explanation of drawings]

1 to 5 show a camera to which the present invention is applied; FIG. 1 is a front view of the camera, FIG. 2 is a top view of the camera, FIG. 3 is a top view, and FIG. Similarly, FIG. 5 is a right side view, FIG. 6 is a view showing the display in the viewfinder, FIG. 7 is an enlarged view showing the liquid crystal display, FIG. 8 is a sectional view of the photographing lens barrel, and FIG. Figure 9 is a partially cutaway side view of the photographic lens barrel, Figure 10 is a cross-sectional view of the mechanism that drives the photographic lens, Figure 11 is a cross-sectional view of the blade of Figure 8, and Figure 12 is a cross-sectional view of the mechanism that drives the photographic lens.
The figures are a cross-sectional view of the mowing line in Fig. 8, Fig. 13 is a diagram showing the signal detection means for controlling the shutter blades, Fig. 14 is a diagram showing the lens movement curve, Fig. 15 is a diagram of the zoom focus principle, and Fig. 1
Figure 6 is a diagram of the focus position correction principle, Figure 17 is a diagram showing an encoder for zoom position control, Figure 18 is a zoom switch timing chart, and Figures 19 (a) to (d) are timing charts of zooming operation. , FIG. 20(a),
(b) is a diagram showing the movement of the lens in the auto zoom mode of FIGS. 19(b) and (d), FIG. 21 is a diagram showing the focusing drive sequence, and FIG. 22 is a sectional view showing the structure of the shutter blade. Figure 23 is an AE program diagram,
Figures 24 (a) to (d) are diagrams of the principle of automatic exposure correction;
Figure 5 is a diagram showing details of exposure amount correction, Figure 26 (a) -
(f) is a diagram showing the operating state of the shutter blade, Figure 27 (
a) to (d) are diagrams showing the shutter drive sequence, the second
Figure 8 (a) is a diagram showing the energization time table, Figure 28 (b)
) is a diagram showing the braking time table, Figure 29 is a diagram showing the aperture characteristics of the shutter blade, Figures 30 (a) to (e) are diagrams showing the stop control of the shutter blade, and Figure 31 is a diagram showing the distance measurement and photometry device. 32 is a sectional view taken along line A-A' of the distance measuring and photometering device.
Fig. 33 is a schematic diagram of obtaining moving target information from the range finder shown in Figs. 31 and 32; Fig. 34 (1)
- (3) are diagrams showing the inside of the finder, Figure 35 is a diagram showing the structure for correcting distance measurement information by varying the distance measurement direction, Figure 36 is a timing chart of photometry, and Figure 37 is the average photometry characteristics. FIG. 38 is a diagram showing the relationship between the average photometry time AVT' and the number of loops of timer T, FIG. 39 is a diagram showing the relationship between EVAV and the number of loops of timer T, and FIG. 40 is a diagram showing the relationship between EVAV and the number of loops of timer T. A schematic circuit block diagram of the camera to which this is applied, Figure 41 shows the MAIN-CPU and 5U
Transfer interface with B-CPU, Figure 42 shows MA
Transfer timing chart from IN'-CPU to 5UB-CPU, Figure 43 shows transfer timing chart from 5LJB-CPU to MAIN-
Transfer timing chart to CPU, Figures 44 to 1
FIG. 23 shows a flowchart of the control circuit, FIGS. 44 to 68 show the MAIN-CPU main routine, FIGS. 69 to 103 show the MAIN-CPU subroutine, and FIGS. Figure 123 is 5UB
- It is a diagram showing a CPU routine. In the figure, 2 is the lens barrel, 3 is the finder, 8 is the main switch, 9 is the release button, 13 is the operation button, 1
5 is an LED display section, 16 is a photometry section, 21 is a moving target mark, 40 is a fixed lens barrel, 42 is a front sliding frame, 43 is a movable lens barrel, 45 is a rear sliding frame, 46 is a first variable magnification lens 49 is a first to third variable magnification lens system, 49a is a third variable lens group, 49b is a first variable magnification lens group, 51 is a shutter blade, 55 is a second variable magnification lens group, 69 is a focusing motor, 77. 83, 102 are photo interrupters, 87 is a shutter drive motor, 99 is a zoom drive motor, 200 is MAIN-CPU, 201 is 5UB-CP
U, 204 is EEPROM, 205 is distance measurement IC1213
is the first motor control IC, and 214 is the second motor control IC.
C, 215 is a photometric IC 1300 with a sliding resistance pattern, 3
01 is the first pattern, 302 is the second pattern, 303 is the third pattern, 304 is the fourth pattern, 310 is the sliding contact piece, 311 is the first contact piece, 312 is the second contact piece, 313 is the third contact piece. 314 is the fourth contact piece, 501 is the distance measuring light projection part, 50
2 is a distance measuring light receiving section, 503 is a photometering section, 512 is a moving target lever 513, 514 is a feeding claw, 517°5
18 is a fixed claw. Patent applicant Konica Corporation I:. ■ JP-A-3 257441 (55) JP-A-3 257441 (60) J14&lΦ BA'TSUTERI + ESOFUMEI> ROUTINE ￥ 517 Mojing blade; ) 68 Fork 1464 Kure 7 CI BC2 ((BCR): 1) 1 Fig. 75 Fig. 1466 - JP-A-3 257441 (85) LDPT event count 7 inch photo frame No. 94 Figure No. 5 Fork MZ SR ■ U796 Sa・ For photography) ,! (for I9) BC, TEMP) 98 下1481 JP-A-3 257441 (105) Error 夙-, J ■ Fig. 112 JP-A-3 257441 (107) Fig. 116 JP-A-3 257441 (108) Fig. 115 Figure RTN Frog) R5TC) - 0 time closed 3 m5ec Figure 118 Figure RTN Figure 119

Claims (1)

[Scope of Claims] 1. A distance measuring unit having a distance measuring device for detecting a subject distance, and a distance measuring unit support means that allows the distance measuring unit to be rotated about a predetermined axis as a fulcrum to change the distance measuring direction. , a direction changing means connected to the distance measuring unit to change the distance measuring direction, a feeding means for moving the direction changing means in a predetermined direction, and a holding means for holding the movement position of the direction changing means by the feeding means. A distance measuring device capable of changing the distance measuring point of a camera. 2. Claim 1, further comprising a release means for releasing the holding of the holding means and returning the direction changing means to an initial position in conjunction with an off operation of a main switch of the camera.
A distance measuring device that can change the distance measuring point of the camera described.