JPH071365B2 - Trimming information recording camera - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having a normal shooting mode and a trimming mode in which a printing range is narrower than that of a normal shooting mode.

2. Description of the Related Art In Japanese Patent Laid-Open No. 54-26721, there is a camera that has a normal shooting mode and a trimming mode in which a range printed is narrower than that, and when the trimming mode is set, a camera that records trimming information regarding the trimming is disclosed. Proposed. In the case of this camera, the trimming information is configured to be imprinted on the lower part (or upper part) of the screen outside the photographing screen.

Problems to be Solved by the Invention In the trimming information imprinting position shown in this camera, various data are provided as a latent image on the film, various data are imprinted or a notch is formed in the photo lab. Since it is the position where the trimming information is set, the developing system may be adversely affected, and the trimming information may be lost at the time of printing due to the notch provided at the developing station.

Further, when comparing the print and the negative film to see the correspondence, the trimming information is imprinted on the end portion outside the screen, which makes it difficult to make correspondence. This is because only a part of the photographic screen of the negative film is printed, and the information indicating this is in an unclear place.

Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional camera and to provide a camera in which trimming information can be accurately read at a developing place.

Means for Solving the Problems In order to achieve the above object, a trimming information recording camera according to the present invention, when the trimming mode is set, shields a portion which is printed in the normal shooting mode and is not printed in the trimming mode. Then, information for determining whether or not the trimming mode is set is recorded.

Therefore, in the present invention, when the trimming mode is set, the trimming information is recorded in a range that is not printed in the shooting screen.

Example Hereinafter, an example of the present invention will be described in detail based on a screen.

FIG. 1 is a perspective view of a camera according to an embodiment of the present invention. First
In the figure, (1) is a switching lever for selectively switching shooting modes. By operating the switching lever (1), "WIDE" (wide-angle mode), "STANDARD" (standard state), "TELE" (telephoto) Mode), "CLOSE UP" (close-up mode) can be selected one of the four modes. And the switching lever (1) is "TEL
In the telephoto mode set to E "and the mode set to" CLOSE UP ", the movable lens barrel (2) projects forward of the camera body to switch the taking lens to the long focus state. ) (4) is a distance measuring window for automatic focus detection, (5) is a viewfinder window, (6) is a flash, (7) is a display liquid crystal display device (hereinafter abbreviated as LCD), and (8) is a film counter. Window, (9) shutter release button, (1
0) is a light receiving window for photometry.

FIG. 2 is a view of the viewfinder section and trimming signal imprinting section of this camera seen from above, and the state of the figure shows the close-up mode in which close-up photography is performed. In FIG. 2, (11) is a viewfinder zoom motor for switching the viewfinder magnification, the rotation of which is a motor pinion gear (12) and a reduction gear (13) (1).
4), and rack plate (16) via idle gear (15)
Be transmitted to. The rack plate (16) is guided so as to slide in the direction crossing the finder optical axis (XF) by the rotation of the idle gear (15).

The rack plate (16) is provided with cam grooves (16a) (16b),
The pins planted in the viewfinder zoom lenses (30) (31) are fitted in the respective parts. Rack board (16)
When the lens is slid in the direction crossing the viewfinder optical axis (XF), the zoom lenses (30, 31) are supported so that they can move only in the direction of the viewfinder optical axis (XF). ) (16b) moves in the direction of the viewfinder optical axis (XF), and the viewfinder is zoomed.

(17) is a code plate for monitoring the zoom state of the viewfinder, which has a 2-bit gray code. And
(18) is a code reading brush for reading the gray code. (19) is the viewfinder objective lens, (2
0) and (32) are viewfinder prisms, and (33) is a viewfinder eyepiece.

(40) is a finder field mask having an opening centered on the finder optical axis (XF). (34) is a trimming signal imprinting switching lever, which is biased clockwise around the rotary shaft (35) so that the tip of one arm comes into contact with the bent portion (16c) of the rack plate (16). There is.
The tip of the other arm of the lever (34) is configured to push the trimming signal mask (36) biased counterclockwise. Then, the trimming signal mask (36) is configured to enter the photographing range of the film at the photographing position and shield a part of the photographing light flux. However, this light blocking position is set to a position where printing is not performed when the trimming mode is selected.

(37) is the rotation axis of the trimming signal mask (36), (38)
Is a light emitting diode for trimming signal imprinting (hereinafter abbreviated as LED), and (39) is a lens for trimming signal imprinting. With this configuration, the trimming signal imprinting LED
The light emitted from (38) is collected by the lens (39),
Reflected once by the mask (36), the film surface (41)
The trimming signal is imprinted on the film at the shooting position.

FIG. 3 is a view of the state of FIG. 2 seen from the rear. In FIG. 3, the mask (36) is provided with a trimming signal imprinting hole (42), and the light emitted from the trimming signal imprinting LED (38) reaches the film through the hole (42). By doing this, a mask (36) is applied to the film surface.
The trimming signal is imprinted in the form of the hole (42) on the photographing screen shielded by, and the signal that is easy to identify is imprinted.

FIG. 4 shows the state of the finder section and the trimming signal imprinting section in the wide-angle (short focus) mode in which the switching lever (1) shown in FIG. 1 is set to “WIDE”. At this time, since the mask (36) is retracted from the shooting optical path of the shooting lens, the film is not shielded and the trimming signal is not printed.

FIG. 5 is a front view showing the control mechanism of the taking lens in the telephoto (long focus) mode in which the switching lever (1) shown in FIG. 1 is set to “TELE”. In Figure 5, (47)
Is a lens frame for controlling the position of the photographing lens in the optical axis direction, and the lens is extended when rotated counterclockwise. Reference numeral (43) is a release magnet. When the release magnet (43) is energized, the attraction piece (45b) is attracted to the release lever (45).
Is rotated clockwise around the rotary shaft (46), and the engagement between the engagement portion (45a) of the engagement lever (45) and the projection (47b) formed on the lens frame (47) is released, The ball frame (47) is rotated clockwise by the spring (55). And
When the ball frame (47) rotates to the position corresponding to the in-focus position,
The stop lever (50) for stopping the clockwise rotation of the ball frame (47) is cut off, and the stop lever (50) to which the armature (49) attracted by the stop magnet (48) is fixed. ) Is rotated clockwise by a spring, and its locking portion (50a) locks any one of a number of claws formed on the lens frame (47) to stop the rotation of the lens frame (47). . Here, (47d) is a claw that is locked when the ball frame is stopped at the position according to the closest distance, and (47e) is a claw that is locked when the ball frame (47) is stopped at the position according to the farthest distance. It is a nail that is used. When stopping at the position corresponding to the intermediate distance, the stop lever (50) locks the intermediate claw between the claw (47d) and the claw (47e). Reference numeral (54) is a charging member for returning the lens to the initial position.
(1a) is a pin implanted in the switching lever (1), and (52) is a close-up lever whose counterclockwise rotation is controlled by the pin (1a). The close-up mode shown in FIG. Since the close-up lever (52) is not pressed by the pin (1a) in modes other than,
The close-up lever (52) is urged by the spring (57) so that its arm (52a) abuts the stopper (56b).

FIG. 6 shows that the switching lever (1) shown in FIG.
The state of the lens control mechanism in the close-up mode adjusted to P "is shown. When the switching lever (1) is rotated counterclockwise from the state shown in FIG. 5 and moved to the" CLOSE UP "position, the switching is performed. The pin (1a) of the lever (1) rotates the close-up lever (52) counterclockwise, and the rotation of the close-up lever (52) is stopped by contact with the stopper pin (56a). Since the arm portion (52a) of the close-up lever (52) has elasticity, when the switching lever (1) is rotated to the "CLOSE UP" position, it is in a slightly bent state.

In this state, the arm of the close-up lever (52) (52
b) has invaded the movement region of the protrusion (47b) planted in the lens frame (47). Therefore, when the release magnet (43) is energized to unlock the lens frame (47), the lens frame (47)
Starts to rotate in the clockwise direction, but the rotation causes the arm (52a) of the close-up lever (52) to project (4
7b) comes into contact and is immediately stopped. The amount of lens extension at this time is greater than when the stop lever (50) locks the closest distance claw (47d) of the lens frame (47) to stop the extension of the lens, and the normal automatic focusing is performed. It is possible to shoot at a shooting distance closer than the adjustable area.

In FIG. 6, the arm portion (52b) of the close-up lever (52) fixes the tip of the locking lever (45) to enable shooting without retraction while the lens is fully charged. It can also be filmed. Alternatively, it is possible to perform close-up photography by performing photography with the lens charge completed state without energizing the release magnet (43).

FIG. 7 and FIG. 8 are front views showing a modified example of the lens extension control mechanism in the close-up mode, and the members having the same functions as those in the embodiments of FIGS. 5 and 6 are designated by the same reference numerals. However, the description thereof will be omitted. In this example, when the lens frame (47) is rotated clockwise, the lens is extended. In Fig. 7, the switching lever (1) is "TEL".
It is aligned with E "and shows the states of modes other than the close-up mode. Fig. 8 shows the state of the close-up mode. In this modification, in the close-up mode, the counterclockwise movement of the switching lever (1) is shown. The arm (47f) fixed to the lens frame (47) by the lens feeding lever (58) rotated counterclockwise against the spring by the rotation.
The pin (47g) planted in is pushed, and the ball frame (47) is rotated further clockwise than the state in which the charging is completed and locked. Even with such a configuration, the lens extension amount is larger than that during normal automatic focus adjustment, and close-up photography is possible.

FIG. 9 is a diagram showing a display state of the display LCD (7).
In FIG. 9, (A) shows that the switching lever (1) is "CLOSE".
Shows the display mode when the close-up mode is set to perform close-up shooting according to "UP".
(B) shows a display mode when the telephoto (long focus) mode is set in accordance with "TELE", and (C) shows "ST".
The display mode in the case where the standard (middle focus) mode is set in accordance with "ANDARD" is shown. In these three modes, the trimming mode is set and shooting is performed, and the trimming signal is imprinted on the film. (D) shows the display mode when the wide-angle (short focus) mode is set by setting the switching lever (1) to "WIDE", and the trimming mode is not designated only when this mode is selected.

However, the present invention is not limited to the combination of the switching of the focal length and the designation of the trimming mode as described above,
Various combinations of are conceivable as shown in FIG.

In Fig. 10, the focal length in the short focus mode is f = 28 mm, and the equivalent focal length in the trimming mode is 56 mm.
Used as. Then, the focal length becomes 56 mm when switched to the long focal length side, but it is not used in the normal photographing mode, but is used as the equivalent focal length 110 mm in the trimming mode. By doing so, on the long focal length side, it is sufficient to guarantee the imaging performance only in the range where the lens is printed by trimming, and the lens design and manufacturing become easy. In close-up photography, in the long-focus side trimming mode, the image magnification is increased by extending the lens larger than the normal extension amount of the automatic focus adjustable area and performing close-up photography. Here, in this example, the equivalent focal length in the close-up mode is the same as in the long focus trimming mode, but in the sense that a large image magnification can be obtained because close-up photography is possible, the equivalent focus is indicated by a broken line in the figure. The extension is shown in the direction of increasing distance. Here, in close-up mode, even if the lens is stopped in the normal autofocus adjustable area, the aperture is forced to a small aperture and the flash is fired, so that the distance is closer than the normal autofocus adjustable distance. There is also a method that makes it possible to shoot. A combination of this method and a method of increasing the delivery amount is also possible. The above-described embodiment employs this combination.

The focal length f is 28 mm on the short focal side, and the equivalent focal length is 40 mm in the trimming mode. When switched to the long focal length side, the focal length is f = 56mm, and the equivalent focal length is 80mm in trimming mode. In this case, it is difficult to design and manufacture the lens, but there is an advantage that the enlargement ratio by trimming is smaller than that and the particles are less noticeable. Various combinations are shown below.

Here, if the focal length on the short focus side is not 28 mm, but is made longer, the focal length on the long focus side and the equivalent focal length can be further increased as compared with the above example.

In the above example, the focal length in the short focus trimming mode and the equivalent focal length in the long focus no-trimming mode are matched. This is because if you select the short focus trimming mode when shooting with an equivalent focal length of 40 mm, the F number becomes smaller and you can shoot with a high-speed shutter, which is also advantageous for shooting in a dark place or a small flash. is there. Also, when the long-focus no-trimming mode is selected, fine print of particles can be obtained, which is advantageous for large stretching.

As for the viewfinder image, the subject image itself uses a known real-image type or virtual-image type variable-magnification finder so that the magnification can be changed according to the switching of the focal length.
It suffices that either the large or small frame is selectively displayed depending on whether or not the trimming mode is designated.

With this configuration, it is easy to understand that the trimming mode is set for both the short focus side and the long focus side if the frame is smaller. This frame switching can be performed by a liquid crystal display device or a mechanical frame mask switching.

FIGS. 11A to 11D show various examples of positions where trimming signals are recorded when the camera back is opened and viewed from the rear. In the above embodiment, as shown in FIG. 3, the corner at the upper right of the photographing screen when the camera is viewed from the rear is shielded so that the trimming signal is recorded, but the present invention is not limited to this. If the trimming mode is not specified and the print area is not printed, the trimming signal is displayed at the center of the upper and lower sides or the left and right sides of the shooting screen as shown in FIGS. 11 (A) to (D). It is also possible to provide a trimming signal imprinting section so as to record.

FIG. 12 is a front view showing the light receiving portion of the automatic focus detection device according to the present embodiment. The automatic focus detection device according to the present embodiment projects infrared light from the camera side toward a subject, and arranges it so that an image of the reflected light is received by two light receiving elements adjacent in the base line length direction. The distance to the subject is detected from the output ratio of the two light receiving elements.
Then, this normal light receiving element for automatic focus detection is
(62a) and (62b) shown in the figure. Furthermore, in this embodiment, when the close-up mode is set, a pair of light receiving elements (64a) (6a) (6a) (6a) for checking whether or not the distance to the subject is appropriate for close-up shooting.
4b) is arranged next to the ordinary light receiving elements (62a) (62b).

That is, in FIG. 12, two light receiving element pairs (62a) (62b) and (64a) (64b) are formed on the light receiving element substrate (60). And (62a) and (62b) are known 2
It is a light receiving element of an active focus detection device of element output comparison type. On the other hand, in the close-up mode, the image of the reflected light of infrared light deviates from the light receiving elements (62a) (62b) and forms an image in the area of the light receiving elements (64a) (64b). Here, if the outputs of the light receiving elements (64a) and (64b) are equal to each other, it is confirmed that the subject, which is the object of distance measurement at that time, is located at a distance suitable for close-up photography.

Next, the electric circuit of this embodiment will be described with reference to FIG. In FIG. 13, (BA) is a power battery, (BT) is a transistor connected to the power battery (BA),
Microcomputer (MC) output terminal (PW
When C) becomes "H", the transistor (BT) becomes conductive, and the film sensitivity reading circuit (ISD), DA converter (DA), release circuit (RL) which will be described later are connected via the line (+ V).
C), exposure control circuit (AE), autofocus device (A
F), the flashmatic timer (FMT), the release lock warning element (RLW), the charge completion indicator element (CHC), and the close-up distance indicator element (DW) are turned on. Further, a release magnet (RM), a shutter control magnet (AEM), a lens stop magnet (AFM), etc., which will be described later, are directly supplied with power from a power supply battery (BA). (BL) is a brush that slides on the code plates (CO) (ST) (CL) (TE) in conjunction with the switching lever (1).
Sliding the brush (BL) from top to bottom in the figure,
The waveforms shown in FIG. 14 are sequentially output. First, the brush (B
The switch lever (1) is set to "WIDE" in the wide angle mode before L) contacts only the code plate (CO) and the code plate (ST). In this state, the outputs of the code plates (ST) (TE) (CL) are all "H",
Therefore, the outputs of the pulse generators (PG ₀ ) (PG ₁ ) (PG ₂ ) (PG ₃ ) described later are all “L”, so the output of the AND circuit (AN ₀ ) remains “H”. , No interrupt signal is input to the interrupt pin (INT ₀ ) of the microcomputer [abbreviated as microcomputer (hereafter referred to as the “MCU”) (MC).

When the brush (BL) contacts the code plate (ST), the output of the code plate (ST) becomes "L", and the pulse generator (PG ₀ )
"H" pulse is generated from the AND circuit (AN ₀ )
The “L” interrupt signal is input to the interrupt pin (INT ₀ ) from the, and the fact that the mode has been changed from the wide-angle mode to the standard mode is transmitted to the microcomputer (MC).

Furthermore, when the brush (BL) is moved downward, it also contacts the code plate (TE) while being in contact with the code plate (ST), which causes the output of the code plate (TE) to reverse to “L”. , The pulse generator (PG ₁ ) outputs the “H” pulse, the “L” interrupt signal is input from the AND circuit (AN ₀ ) to the interrupt pin (INT ₀ ) of the microcomputer (MC), and the mode is changed. The fact that the standard mode has been switched to the telephoto mode is transmitted.

Then, when the brush (BL) is further moved downward, the contact with the cord plate (ST) is cut off, and the brush (BL) is also contacted with the cord plate (CL) while being in contact with the cord plate (TE). Then, the output of the code board (CL) is inverted to "L",
A "H" pulse is generated from the pulse generator (PG ₂ ), which causes the AND circuit (AN ₀ ) to input an "L" interrupt signal to the interrupt pin (INT ₀ ), closing the mode from the telephoto mode. The fact that the mode has been changed to the up mode is transmitted.

In this way, the "L" pulse from the AND circuit (AN ₀ ) is used as an interrupt signal for the interrupt terminal (I
It is input to NT ₀ ) and the microcomputer (MC) switches the mode for each interrupt signal. In addition, in FIG.
At the time of a and b, respectively, code plate (TE) (CL)
Since the output of is at “L”, the pulse generator (PG ₀ ) (PG
_No pulse is output from ₁ ).

Next, the pulse generator (PG ₀ ) (PG ₁ ) (PG ₂ ) (PG ₃ ) shown in FIG.
FIG. 15 shows the specific configuration of the above. In Fig. 15, the circuit in the alternate long and short dash line corresponds to the pulse generator (PG ₀ ) (PG ₁ ) in Fig. 13, and the circuit in the broken line is the pulse generator (PG ₂ ) (PG ₃ ) in Fig. 13. It corresponds to. That is, the pulse generator (PG ₀ ) (PG ₁ ) is
Delay circuit (DL ₀ ) to which the output of each code plate is input
And an exclusive OR circuit (EO ₀ ), where the output of the code plate (ST) or (CL) is input to one input terminal and the output of the delay circuit (DL ₀ ) is input to the other input terminal. ,
Exclusive-output Shiv OR circuit (EO ₀₎ is input to one input terminal, an output of the code plate (TE) is composed of an AND circuit is input to the other input terminal (AN _1).

The pulse generators (PG ₂ ) and (PG ₃ ) shown in FIG. 13 correspond to the configuration within the broken line in FIG. 14, and the input signals are directly input to one input terminal and The input signal is composed of an exclusive OR circuit (EO ₀ ) which is input to the other input terminal via the delay circuit (DL ₀ ). Therefore, in each of the pulse generators (PG ₀ ) (PG ₁ ) (PG ₂ ) (PG ₃ ), either "H" to "L" inversion of the input signal or "L" to "H" inversion Also outputs "H" pulse.

Returning to FIG. 13, (BCS) is a back cover switch which is opened / closed in response to opening / closing of the back cover of the camera. When the back cover is opened, the back cover switch (BCS) is closed and the back cover is closed. When completed, the back cover switch (BCS) is opened. (S ₁ ) is a photometric switch that is closed by pressing the shutter release button (9) in the first step, and (S ₂ ) is a release switch that is closed by pressing the shutter release button (9) in the second step. Is.

(PWS) is a preliminary feed switch linked to a film counter (not shown) that mechanically counts the number of film shots. It winds 3 frames from when the back cover is closed or when it is open (count value "S"). It is closed until just before the position (counter value "1") is reached, and while this switch is closed, preliminary feeding is performed to feed the film by 3 frames to the filmable frame when the film is loaded.

(1FS) is a one-frame switch that is closed when the film has been wound and is opened during film winding. (OL
S) is an overload detection switch that is closed when the winding system is overloaded during film winding (usually the film is stretched by winding the last film frame) and opened when the film rewinding operation starts. is there.

(FIS) is a film detection switch that opens when film is loaded in the camera and closes when film is not loaded. When this switch (FIS) is closed during film rewinding, It is configured to stop the rewinding operation. (CS) is a count switch that is closed when the shutter opening operation is started.
When S) is closed, the count operation for shutter control is started by the exposure control circuit (AE) described later, and the count operation of the timer for flash emission timing control is started by the flashmatic timer circuit (FMT) described later. .

Further, (LPS) is a lens position switch for indicating the position of the taking lens in the optical axis direction. In the telephoto mode and the close-up mode in which the movable lens barrel (2) shown in FIG. The position switch (LPS) is closed, and the lens position switch (LPS) is opened in the wide-angle mode and the standard mode in which the movable lens barrel (2) does not protrude from the camera body. (FPS ₁ ) and (FPS ₂ ) are finder position switches corresponding to (17) and (18) in Fig. 2, respectively, and the relationship between the open / closed state and each shooting mode and trimming mode designation is shown in Table 1. I will summarize it. Then, whether each of the wide-angle state WP, the standard state STP, the telephoto state TEP, and the close-up state CLP is determined by each switch (LP
S) It is identified by ON-OFF of (FPS ₁ ) (FPS ₂ ).

(DSP) is a liquid crystal display device for displaying data from the microcomputer (MC) and corresponds to the liquid crystal display device (7) shown in FIG. (RLW) (CHC) and (DW) are display elements for displaying in the viewfinder, respectively.
(W) is a release lock warning element that warns the release lock state, (CHC) is a charge completion display element that indicates the charge completion state of the flash, and (DW) is the subject distance suitable for close-up shooting in close-up mode It is a close-up distance display element indicating whether or not. (FWM)
Is a film feed motor that winds and rewinds the film, and its rotation is controlled by a motor control circuit (MD ₀ ). The motor control circuit (MD ₀ ) advances the film so that the output terminal (WSTA) of the microcomputer (MC) is in the "L" winding operation and the output terminal (RWSTA) is in the "L" rewind operation. The motor for motor (FWM).

(LDM) is a lens drive motor used to change the focal length of the shooting lens. When the output terminal (FSTA ₁ ) of the microcomputer (MC) is "L", the high magnification direction, output terminal (BS
When TA ₁ ) is "L", move the taking lens toward lower magnification. (FDM) is a finder drive motor that is used to change the magnification of the finder according to the conversion of the focal length of the shooting lens.
The finder magnification is switched in the high magnification direction when A ₂ ) is "L" and in the low magnification direction when the output terminal (BSTA ₂ ) is "L".

(FL) is a flash circuit that controls the flash (6) shown in FIG. 1, and the output terminal (FLST of the microcomputer (MC)
When A) becomes “L”, the boost operation for charging the main capacitor for flash emission is started, and the output terminal (DSTA)
When goes low, the charge status is detected. And
From the output terminal (CHS) of the flash circuit (FL), it goes to "H" when the main capacitor is in the charging completed state, and outputs "L" signal to the microcomputer (MC) when the charging is not completed.

(TRIP) is a trimming mark imprinting circuit. When either standard mode (“STANDARD”), telephoto mode (“TELE”) or close-up mode (“CLOSE UP”) is set. Since the trimming mode is set to, the output terminal (TRM) of the microcomputer (MC) becomes "L" at this time, and the imprinting circuit (TRIP) becomes operable. Then, when the data imprinting signal emitted from the output terminal (IPS) of the microcomputer (MC) goes to "L" in this state, a pulse is output from the one-shot circuit (OS) shown in Fig. 16 at this falling edge. The trimming mark imprinting circuit (TRIP) starts the imprinting operation of the trimming mark by this signal. In this one-shot circuit (OS), as shown in FIG. 16, the input signal is directly input to one input terminal, and the input signal is input to the other input terminal by the delay circuit (DL ₁ ).
It consists of an AND circuit (AN ₂ ) input via. Then, the trimming mark imprinting circuit (TRIP) receives an analog signal obtained by converting the data corresponding to the film sensitivity emitted from the film sensitivity reading circuit (ISD) into an analog amount by the DA converter (DA). And the imprinting operation is performed only for the time corresponding to the read film sensitivity.

Here, the film speed data from the film speed reading circuit (ISD) is a digital signal as it is as a digital signal, and the microcomputer (MC) and a flashmatic timer (FM) described later are used.
It is also entered in T).

(DAIP) is a data imprinting device provided on the back cover of the camera, and is configured to imprint predetermined data from the back surface of the film. This data imprinting device (DAIP)
The imprinting signal (IPS) is input from the microcomputer (MC) via the connector (CON). Then, this imprinting signal (IPS) is "L" when the exposure control operation starts.
Then, after a lapse of time corresponding to the film sensitivity from the film sensitivity reading circuit (ISD), it becomes "H", and the imprinting signal (IPS) of the data imprinting device (DAIP) is "L".
The imprinting operation is performed only during the period. This data imprinting device (DAIP) has a clock circuit for a calendar, a liquid crystal display unit for imprinting and a monitor, a light source for imprinting, and a power supply battery for these.

(RLC) is a release circuit, and when the output terminal (EXSTA) of the microcomputer (MC) becomes "L", the magnet (4
Shutter release magnet (RM) corresponding to 3)
Is excited to unlock the lens and start moving the lens.

(AE) is an exposure control circuit, and when the output terminal (EXSTA) of the microcomputer (MC) becomes "L", the shutter control magnet (AEM) is excited and the shutter closing operation is locked. Here, in the present embodiment, the movement of the lens is started by the operation of the release magnet (RM), and along with this, the front running plate (not shown) also starts to move. Here, the movement of the lens is stopped at a position according to the distance measurement result, but the front traveling plate continues traveling and unlocks the shutter opening member at the final position. Then, the shutter opening operation is started and the count switch (CS) is closed. Then, when the transistor (BT) described above is turned on, power supply from the line (+ V) to the exposure control circuit (AE) is started, and the photometric operation is started. This photometric value Bv and DA
The film sensitivity value Sv from the converter (DA) is added and the exposure value Ev is output. If the output terminal (AEL) of the microcomputer (MC) goes to "L" after the time required for the photometric device to stabilize has passed since the power supply from the line (+ V) was started, the exposure control circuit (AE) will then Exposure value Ev of A-D
Convert and latch (this is called AE lock).

On the other hand, the exposure control circuit (AE) is equipped with an encoder that outputs a pulse in conjunction with the travel of the shutter, and a counter (not shown) that activates this pulse by closing the count switch (CS). Counting is performed, and the shutter opening at that time and the exposure value Ev that can be timed are output. When the AE-locked exposure value and the count value match, the shutter control magnet (AEM) is demagnetized and the shutter is closed. By the way, in the present embodiment, when the focal length of the lens is doubled, the aperture value becomes a small aperture by two steps even with the same shutter opening. The shutter speed is limited to 1/30 in order to prevent camera shake, and the maximum speed is limited to 1/500 due to the shutter configuration. Therefore, as shown in the program diagram of FIG. 17, the interlocking range is different between the wide-angle mode (“WIDE”) or the standard mode (“STANDARD”) and the telephoto mode (“TELE”). Therefore, in wide-angle or standard (short focus) mode, the exposure value Ev locked with AE is smaller than "8", and in telephoto (long focus) mode, the exposure value Ev is "10".
When it is smaller than this, the output terminal (LTS) of the exposure control circuit (AE) is set to "L" to indicate the low speed limit. That is,
When the output terminal (TEM) of the microcomputer (MC) is in "H" wide-angle mode, standard mode or close-up mode, the AE-locked exposure value Ev and the data corresponding to "Ev = 8" are compared and output. When the terminal (TEM) is in “L” telephoto mode, the exposure value Ev locked with AE is compared with the data corresponding to “Ev = 10”, and the exposure value Ev locked with AE is compared with the predetermined value “Ev When it is smaller than = 8 "or" Ev = 10 ", the output terminal (LTS) of the exposure control circuit (AE) becomes" L ". Therefore, the microcomputer (MC) switches from the natural light photographing mode to the flash light photographing mode if the input terminal (LTS) is "L". In close-up mode, this signal (LT
S) is not used.

Next, shutter control will be described. First the shutter
It opens and closes with the waveform shown in Fig. 18. When the output terminal (TEM) of the microcomputer (MC) is "H", data corresponding to "Ev = 16" is preset in the counter before opening the shutter, and when the output terminal (TEM) is "L", "Ev" Data corresponding to 18 "is preset. When the shutter opening operation is started and the count switch (CS) is closed, the counting operation of the counter becomes possible and the operation of the drive circuit for demagnetizing the shutter control magnet (AEM) becomes possible. And the exposure value Ev locked with AE,
Based on the pulse output from the encoder in conjunction with the shutter, it compares the data that is being down-counted from the preset value of the counter, and the counter data and the AE-locked exposure value Ev match or When it is determined that the data is small, the shutter control magnet (AEM) is demagnetized and the shutter closing operation is started.

If the AE-locked exposure value Ev is smaller than "8" or "10", the AE-locked data is reset to "Ev = 8" or "Ev = 10". This gives the 18th
As shown in the program diagram of Fig. 17 and Fig. 17, the aperture F
2.8, shutter speed 1/30 or aperture F5.6, shutter speed 1/30
The flash photography is limited to.

When the exposure value Ev with AE locked is "16" or "18" or more, the shutter opening magnet is started and the shutter control magnet (AEM) is demagnetized immediately after the count switch (CS) is closed. Then, the shutter closing operation is performed. However, due to the response delay of the shutter control magnet (AEM), the mechanical part delay, etc., the shutter is the aperture stop F1 shown in FIG.
1, the shutter speed 1/500 or aperture F22, the opening and closing operation is performed with the waveform shown by the shutter speed 1/500. Therefore, “Ev = 1
When 6 "or" Ev = 18 "or more, the shutter speed is limited to 1/500. When the shutter control magnet (AEM) is degaussed, the" L "pulse with a fixed time duration is exposed. It is output from the output terminal (AEC) of the circuit (AE), and this signal is sent to the microcomputer (MC) and the flashmatic timer (FMT) described later.

(AF) is an autofocus device. When the transistor (BT) is turned on and the power supply from the line (+ V) is started, the infrared light emitting diode emits pulsed light toward the subject and is reflected by the subject. The pulsed light is received somewhere between the light receiving elements (62a) (62b) in FIG. A signal corresponding to the ratio of the amount of received pulsed light in the output of both light receiving elements (62a) (62b) (this indicates the subject distance) is sample-held according to the timing of pulsed light emission, and sample-held. The signal is A-D converted and latched (this is called AF lock). Data corresponding to the AF-locked subject distance is displayed on the data line (DI
It is sent to the flashmatic timer (FMT) through SD).

In close-up mode, the microcomputer (MC)
The output terminal (CLM) of becomes "L", and it is determined whether the pulsed light is received between the light receiving elements (64a) and (64b) in FIG. That is, the autofocus device (A
F) determines whether the ratio of the pulsed light components of the output of both light receiving elements (64a) (64b) during pulsed light emission is within a predetermined range (within the allowable range of the lens design in close-up mode). Output terminal (DCH) when not within the specified range
Is set to "L". If the input terminal (DCH) of the microcomputer (MC) is "H", the close-up distance display element (DW) will indicate that the distance is OK. If the input terminal (DCH) is "L", the OK display will not be performed. Make the user aware that the distance is not suitable for the close-up mode. The output terminal (CLM) of the microcomputer (MC) that indicates whether or not this close-up mode is connected to not only the autofocus device (AF) but also the exposure control circuit (AE) and the flashmatic timer (FMT) described later. ing.

When the output terminal (EXSTA) of the microcomputer (MC) becomes "L",
The release circuit (RLC) excites the release magnet (RM) corresponding to the magnet (43) in FIG. 5 to start moving the photographic lens, and a pulse is output from an encoder (not shown) along with the movement of the lens. However, at the same time, the output terminal (EXSTA) of the microcomputer (MC) becomes "L", so that the lens stopping magnet (AFM) corresponding to the magnet (48) in FIG. 5 is also excited. Then, when the AF locked data and the pulse count data from the encoder match, the autofocus device (AF) demagnetizes the lens stop magnet (AFM) to stop the movement of the lens. In the close-up mode (when the output terminal (CLM) of the microcomputer (MC) is "L"), the lens stop magnet (AFM) remains demagnetized even when the output terminal (EXSTA) goes "L". Up to.

(FMT) is a flashmatic timer, which corresponds to the flash emission amount based on the film sensitivity data from the film sensitivity reading circuit (ISD) and the object distance data (DISD) from the autofocus device (AF). Decodes the time data and outputs it to the flash circuit (FL). When the count switch (CS) is closed, it starts counting the decoded time, and when it counts only the decoded time, it outputs "L" from the output terminal (TRG). A pulse of "" is output to send a flash emission signal to the flash circuit (FL) to cause the flash (6) to emit light. As a result, the flash (6) is caused to emit light when the shutter opening reaches the aperture value that provides the proper exposure determined by the film sensitivity, the subject distance, and the flash emission amount. However, the operation of this flashmatic timer (FMT) is controlled by the output terminal (FLEN) of the microcomputer (MC),
The flashmatic timer (FMT) is activated when the output terminal (FLEN) is "L".

Here, in the telephoto mode (“TELE”) and the wide-angle mode (“WIDE”) or standard mode (“STANDARD”), the aperture is the same even if the shutter aperture (time) is the same as shown in FIG. The values differ by two steps. Therefore, when the output terminal (TEM) of the microcomputer (MC) is in the "L" telephoto mode, even when the output terminal (TEM) is in the "H" wide-angle mode or standard mode, the film sensitivity and subject distance are the same, The flashmatic timer (FMT) decodes so that the light emission signal is output at the time delayed by two steps (when the shutter opening is further opened). Therefore, the output terminal (TEM) of the microcomputer (MC) is also connected to the flashmatic timer (FMT), and whether the telephoto mode or not is transmitted to the flashmatic timer (FMT).

When the proper aperture value is smaller than F2.8 or F5.6 (long distance), the shutter speed is limited to 1/30, so the flashmatic timer (FMT) counts the decoded data. Before the end, the shutter control magnet (AEM) is demagnetized, and the "L" pulse is input from the output terminal (AEC) of the exposure control circuit (AE). Thus, when the "L" pulse is input from the output terminal (AEC) of the exposure control circuit (AE) before the timer count ends, the flashmatic timer (FMT) outputs this pulse from the output terminal (TRG). Then, the flash is fired.

Also, in close-up mode, when the output terminal (CLM) of the microcomputer (MC) is "L", the flashmatic timer (FMT) uses the distance and the amount of light emission for which the lens is designed only according to the film sensitivity data. The predetermined timer data that is appropriate is decoded. When the timer finishes counting, a pulse is output to the output terminal (TRG) to make the flash fire. In the close-up mode, the exposure control circuit (AE) does not perform the shutter control operation, and the shutter control magnet (AEM) remains excited. And the exposure control circuit (AE) is a flashmatic timer (FM
When the "L" pulse is input from the output terminal (TRG) of T), the shutter control magnet (AEM) is demagnetized to close the shutter. That is, in the close-up mode, only the flashmatic exposure control is performed at a shooting distance (fixed) predetermined by the lens design, and natural light shooting is not performed.

Next, the operation of this embodiment will be described in detail with reference to the flowcharts of FIG. FIG. 19 is a flow chart showing the switching operation of the photographing modes by the switching lever (1) shown in FIG.

Switching of shooting modes is started by inputting an interrupt signal of "L" pulse to the interrupt terminal (INT ₀ ) of the microcomputer (MC) in FIG. That is, when the output of the code plates (ST) (TE) (CL) on which the sliding brush (BL) interlocking with the switching lever (1) slides changes, the pulse generator (PG ₀ ) (PG ₁ ) (PG ₂ ) or (PG ₃ ) outputs "H" pulse, AND circuit (AN ₀ ) outputs "L" pulse, and interrupt signal to interrupt pin (INT ₀ ) Is entered. Then, first, step # 0 in FIG.
(All steps are omitted below), all output terminals (FLSTA) (FSTA ₁ ) (BSTA ₁ ) (FSTA ₂ ) (BSTA ₂ ) of microcomputer (MC) are “H”.
To This is to stop these operations during the boosting operation for flash photography, during the taking lens switching operation, and during the finder switching operation.

Then, the interrupt from the interrupt terminal (INT ₀ ) is permitted even during the switching operation of the photographing mode in # 1, and the process proceeds to # 2. # 2
Then, the output signal of the code plate (CL) is determined to determine whether or not it is the close-up mode. In the close-up mode, the code plate (CL) output signal is "L", so proceed to # 10 and set the microcomputer (MC) output terminal (FSTA ₂ ) to "L".
To change the viewfinder to a high magnification state according to the close-up mode, and at # 11, close-up state CL in Table 1
Wait for P to be achieved, and then, at # 12, set the microcomputer (MC) output terminal (FSTA ₂ ) to "H" to cancel the finder switching operation, and at # 13, output the microcomputer (MC). The terminal (CLM) is set to "L" to notify the autofocus device (AF) that it is in close-up mode, and the output terminal (TEM) is set to "H" at # 14 to release the signal indicating the telephoto mode. In # 15, the close-up mode is displayed by the liquid crystal display (DSP). Then, the flash flag (FLF) is set to "1" in order to perform flash photography at # 16, and the process proceeds to # 66. Here, when converting to the close-up mode, it is not necessary to perform the switching operation of the photographic lens because the photographic lens is always converted from the telephoto mode in the high magnification state.

If the output signal of the code plate (CL) is "L" in # 2, # 3
Then, it is determined whether or not the mode is the telephoto mode based on whether or not the output signal of the code plate (TE) is "L". In the telephoto mode, the code plate (TE) output signal is "L", so proceed to # 20 to determine whether it is the close-up state CLP or not, and if it is the close-up state, convert the close-up mode to the telephoto mode. In this case, the output terminal (BST
A ₂ ) is set to "L" to convert the viewfinder to the low magnification state according to the telephoto mode, and wait for the telephoto state TEP to be achieved at # 22. Then, when the telephoto state TEP is achieved, the process proceeds to # 23, the output terminal (BSTA ₂ ) is set to “H” to cancel the finder switching operation, and the output terminal (CLM) indicating the close-up mode is opened in # 24. Set to "H" to cancel close-up mode, reset the flash flag (FLF) to "0" at # 31, and set the output terminal (TEM) indicating telephoto mode to "L" at # 32.
The telescopic mode is transmitted as, and the liquid crystal display device (DS
Display the telephoto mode with P) and proceed to # 66. Even when the close-up mode is changed to the telephoto mode in this way, the photographing lens is already in the high magnification state in the close-up mode, and therefore it is not necessary to perform the switching operation.

If it is not the close-up state CLP in # 20, it means that the standard mode has been converted to the telephoto mode. Go to # 25 and set the output terminal (FSTA ₂ ) of the microcomputer (MC) to "L" to set the viewfinder to the standard mode. Convert from the low magnification state of to the high magnification state of the telephoto mode, and wait for the telephoto state TEP to be achieved at # 26. When the telephoto state TEP is achieved in # 26, the process proceeds to # 27, the output terminal (FSTA ₂ ) is set to “H” to cancel the finder switching operation, and the output terminal (FSTA ₁ ) is set to “L” in # 28. Then, the shooting lens is changed from the low magnification state of the standard mode to the high magnification state according to the telephoto mode, and the lens position switch (LP
Wait until S) is closed, and when it is closed, set the output terminal (FSTA ₁ ) to "H" at # 30 to release the lens switching operation, and then proceed to # 32.

If the output signal of the code plate (TE) is not "L" in # 3, the telephoto mode is not set. Therefore, proceed to # 4 to determine whether the output mode of the code plate (ST) is the standard mode. In the standard mode, the code plate (ST) output signal is "L", so # 40
Then, it is determined whether or not the telephoto state TEP is reached.
If it is in the telephoto state, proceed to # 41 and use the microcomputer (MC).
Set the output terminal (BSTA ₂ ) of to "L" to convert the viewfinder from the high magnification state in the telephoto mode to the low magnification state in the standard mode.
Wait for the standard state STP to be reached at # 42. Then, when the standard state STP is achieved, the output terminal (BSTA ₂ ) is returned to "H" in # 43 to cancel the viewfinder switching operation.
Then, set the output terminal (BSTA ₁ ) to "L" to convert the shooting lens to the low magnification state, and wait for # 45 to open the lens position switch (LPS). When the lens position switch (LPS) is opened, the output terminal (BSTA ₁ ) is set to "H" at # 46 to cancel the lens switching operation, and the output terminal (TEM) indicating the telephoto mode is set at "# 47". Set to "H" to release, and display the standard mode on the liquid crystal display (DSP) at # 53. # 66
Proceed to.

If it is not in the telephoto state at # 40, it means that the wide-angle mode has been converted to the display mode, so proceed to # 48 and output terminal (FST
Convert the viewfinder in the "L" and A ₂₎ from the lower magnification state of the wide-angle mode to the high magnification state corresponding to the standard mode, waiting for the standard state STP is achieved # 49. And standard state STP
When the above is achieved, the output terminal (FSTA ₂ ) is set to "H" at # 50 to cancel the finder switching operation, and the output terminal (TRM) of the microcomputer (MC) is set to "L" at # 51 to trim the trimming mark. Is displayed, the liquid crystal display (DSP) indicates that the trimming mode has been set in # 52, and # 53 is displayed.
Proceed to.

If the output signal of the code plate (ST) is not "L" in # 4, it means that the standard mode is converted to the wide-angle mode.
Go to # 60 and set the output terminal (BSTA ₂ ) of the microcomputer (MC) to "L".
Then, the viewfinder is changed from the high magnification state of the standard mode to the low magnification state of the wide angle mode, and the wide angle state WP is waited for in # 61. And when the wide-angle state WP is achieved, #
Proceed to step 62 to set the output terminal (BSTA ₂ ) to "H" to cancel the viewfinder switching operation, and use # 63 to set the output terminal (TRM) to "H".
To cancel the imprinting of the trimming mark, cancel the trimming mode display by the liquid crystal display (DSP) in # 64, and display the wide-angle mode in # 65.
Proceed to 66.

In # 66, the output from the pulse generator (PG ₃ ) shown in Fig. 13 is input via the inverter (IN ₀ ) to the interrupt pin (INT ₁ )
It is determined whether or not an interrupt signal is input to. That is, this interruption is initiated by both opening and closing the back cover switch (BCS) that is opened and closed in conjunction with the opening and closing of the back cover of the camera. If the back cover is operated between # 0 and # 66 and there is an interrupt from the interrupt terminal (INT ₁ ) at # 66, the process goes to the back cover routine shown in FIG. 20, and if not, the case shown in FIG. Go to the STOP routine.

FIG. 20 is a flowchart of a back cover routine showing the operation when the back cover is operated. In Fig. 20, when the back cover is operated and an interrupt signal is input to the interrupt terminal (INT ₁ ) of the microcomputer (MC), the output terminals (FLSTA) (DSTA) of the microcomputer (MC) are turned on at # 70. Set to "H" to stop both the boosting operation and the charge completion detecting operation of the flash circuit (FL). Then, in # 71, it is determined whether or not the back cover switch (BCS) is closed, and the back cover switch (BCS) is determined.
If is closed, the back cover is open. Go to # 72 and set the output terminal (WSTA) to "L" to drive the film feed motor (FWM) shown in Fig. 13 in the film winding direction. Let Then, in # 73, the film is wound up while waiting for the preliminary feed switch (PWS) shown in FIG. 13 to be opened, and when the preliminary feed switch (PWS) is opened, one frame is next printed in # 74. Wait for the switch (1FS) to be closed, and when the 1-frame switch (1FS) is closed,
At # 75, the microcomputer (MC) sets the output terminal (WSTA) to "H" to stop the winding operation. By the operations from # 72 to # 75, the film is pre-fed by 3 frames from the loading.

If the back cover switch (BCS) is closed at # 71, the back cover is open, so proceed to # 80 to determine whether the 1-frame switch (1FS) is closed. To do.
Here, since this 1-frame switch (1FS) is closed when the film has been wound up, if the 1-frame switch (1FS) is not closed at # 80, the film may be pulled up. Since the winding is not completed, the output terminal (WSTA) of the microcomputer (MC) is set to "L" at # 81 to drive the film feed motor (FWM) in the film winding direction, and at # 82 the single frame switch When the closing of (1FS) is detected, the output terminal (WSTA) is set to "H" at # 83 to stop the film winding operation. Therefore, even if the winding of the film is not completed by the bulging of the film, the film remaining when the case back is opened is wound up.

Then, from # 75 or # 83 to # 84, the switching lever (1) shown in FIG. 1 is operated between # 70 and # 84, and the interrupt signal is input to the interrupt terminal (INT ₀ ). If the interrupt signal is input to the interrupt terminal (INT ₀ ), proceed to the mode switching routine shown in FIG. 19, and if not, proceed to the STOP routine shown in FIG. 22. .

Next, the flow shown in FIGS. 21 and 22 will be described. These flow charts are for exposure and
The operation of the hoisting and rewinding routine is shown. This routine is started by an interrupt signal input to the interrupt terminal (INT ₂ ) of the microcomputer (MC) by closing the photometric switch (S ₁ ) shown in FIG. Where this photometric switch
(S ₁ ) is one of the shutter release buttons (9) shown in FIG.
It is closed by pressing the step.

First, when this interrupt signal is input, both the output terminals (FLSTA) (DSTA) of the microcomputer (MC) are set to "H" at # 90 to stop the boosting operation and charge completion detection operation of the flash circuit (FL). . Next, the microcomputer (MC) sets the output terminal (PWC) to "H" at # 91 to make the transistor (BT) conductive, and the film sensitivity reading circuit (ISD), D of FIG. -A converter (DA), release circuit (RLC), exposure control circuit (AE), autofocus device (AF), flashmatic timer (FMT), release lock warning element (RLW), charge completion display element (CHC) And the power supply to the close-up distance display element (DW) is started.

Then, at # 92, after waiting for a certain period of time required for stabilization of the photometry circuit included in the exposure control circuit (AE),
At # 93, the microcomputer (MC) sets its output terminal (AEL) to "L" and AE locks the metering value at that time. Then, in # 94, it is determined whether or not the close-up mode is set. If it is in close-up mode, proceed to # 95 to determine the signal from the input terminal (DCH) input from the autofocus device (AF) to determine whether the subject is at a distance suitable for close-up shooting. . If the subject is at a distance suitable for close-up shooting, the input terminal (DCH) is not "L", so proceed to # 96 and the microcomputer (MC) performs display by the close-up distance display element (DW). . If the input terminal (DCH) of the microcomputer (MC) is "L" in # 95, the subject is not at a distance suitable for close-up shooting, so the close-up distance display element (DW) does not display.

If it is not close-up mode in # 94, proceed to # 97,
The microcomputer (MC) determines whether the signal from the input terminal (LTS) input from the exposure control circuit (AE) is "L" and determines whether the shutter speed is at the low speed limit. If the shutter speed is not at the low speed limit, go to # 98 and reset the flash flag (FLF) that is set to "1" when performing flash photography to "0". If the shutter speed is at the low speed limit, input terminal (LTS)
Is "L", so use # 100 for flash photography.
Proceed to.

That is, flash photography is performed in the close-up mode and in the modes other than the close-up mode and when the shutter speed is at the low speed limit. In # 100, the flash flag (FLF) is set to “1” for flash photography, and in # 101, the output terminal (DST) of the microcomputer (MC)
A) is set to "L" and detection of the charging completion state of the flash shooting main capacitor of the flash circuit (FL) is started. Then, at # 102, the microcomputer (MC) receives its input terminal (C
HS) signal to determine if the charging is completed.
If the input terminal (CHS) is "H" in # 102, the charging of the main capacitor has been completed, so the process proceeds to # 103, where the charging completion display element (CHC) displays the completion of charging. After that, in # 104, the output terminal (DSTA) is reset to "H" to cancel the charge completion detecting operation.

If the input terminal (CHS) is not "H" in # 102, it means that the main capacitor of the flash circuit (FL) has not been charged, so proceed to # 105 and set the output terminal (DSTA) to "H". Then, the charging completion detecting operation is released, a warning is given by the release lock warning element (RLW) at # 106, and the opening of the photometric switch (S ₁ ) is waited at # 107. And # 107
If the photometric switch (S ₁ ) is opened at, the routine proceeds to the STOP routine shown in FIG.

On the other hand, from # 104, proceed to # 110, and in # 110 and # 111,
Wait until the release switch (S ₂ ) is closed while the metering switch (S ₁ ) is closed. Here, if the flash photography is not performed, the process proceeds from # 98 to # 110.

Then, when the release switch (S ₂ ) is closed, the process proceeds to step # 112 to turn off the display of the charge completion display element (CHC),
At 13, it is determined whether or not the flash flag (FLF) is "1" to determine whether or not flash photography is performed. Here, since the flash flag (FLF) is "1" when performing flash photography, the process proceeds to step # 114, and the microcomputer (MC) sets its output terminal (FLEN) to "L" and the flashmatic timer (FMT). ) To allow flash photography. If the flash shooting is not performed, the flash flag (FLF) is not "1", so the procedure proceeds from # 113 to # 115, and the microcomputer (MC) sets its output terminal (FLEN) to "H" to prohibit the flash shooting. .

Then, the process proceeds to step # 116 to set the output terminal (EXSTA) to "L" to start the shooting operation by the release circuit (RLC), the exposure control circuit (AE) and the autofocus device (AF).
The data corresponding to the film sensitivity value Sv read by the film sensitivity reading circuit (ISD) in 7 is stored in the microcomputer (M
It is set in the data imprinting time control timer built in C), the timer is started in # 118, and the process proceeds to # 119 in FIG.

In Figure 119, the output terminal (IPS) of the microcomputer (MC) is shown in # 119.
Is set to “L” and the data imprinting device (DA
The imprinting of data by IP) and the imprinting of trimming marks by the trimming mark imprinting circuit (TRIP) are started when the trimming mode is specified. Then, in # 120, the timer set in # 117 of FIG. 21 waits for the count to end, and when this count ends, the flow proceeds to # 121 where the output terminal (IPS) is set to "H" and the imprinting ends. Let

Next, at # 122, the microcomputer (MC) waits for the output terminal (AEC) of the exposure control circuit (AE) to go to "L" when the shutter close operation starts, and then outputs this output. Terminal (AEC)
When becomes "L", the process waits for a fixed time necessary for closing the shutter at # 123 and then proceeds to # 124. In # 124, the output terminal (PWC) of the microcomputer (MC) is set to "L" to make the transistor (BT) non-conductive, and the power supply from the line (+ V) is stopped.

Furthermore, in # 125, reset the output terminal (AEL) to "H".
AE lock is released, and the output terminal (EXSTA) is "H" in # 126.
Reset to demagnetize the release magnet (RM),
With # 127, set the output terminal (WSTA) to "L" and drive the film feed motor (FWM) in the film winding direction to wind the film. Then, in # 128, after waiting for a fixed time necessary for the one-frame switch (1FS) to be released from the closed state, the process proceeds to # 129 to determine whether the one-frame switch (1FS) is closed. To determine. Here, in parallel with this, the microcomputer (MC) also determines at # 130 whether the overload detection switch (OLS) is closed.

Then, when the closing of the 1-frame switch (1FS) is detected, the film 1-frame winding is completed normally. Therefore, the output terminal (WSTA) is reset to "H" at # 131 and the film winding operation is performed. Release, go to # 132, wait for the metering switch (S ₁ ) to open, then open # 13.
At 3, it is determined whether or not an interrupt signal is input to the interrupt pin (INT ₀ ). Here, if an interrupt signal is input to the interrupt terminal (INT ₀ ), proceed to the mode switching routine in FIG. 19, and if no interrupt signal is input, proceed to # 134 to interrupt signal to the interrupt terminal (INT ₁ ). It is determined whether or not is input. # 134 interrupt terminal
If an interrupt signal is input to (INT ₁ ), proceed to the case back routine in Fig. 21. If it is not input, STO from # 150
Proceed to P routine.

If it is determined that at # 130 overload detection switch (OLS) is closed, since this is a state film is Tsu突張, the photometric switch (S ₁₎ it is opened proceeds to # 140 When it is released, the microcomputer (MC) sets the output terminal (RWSTA) to "L" and drives the film feed motor (FWM) in the film rewinding direction. And
In # 142, wait for the film detection switch (FIS) to be closed, and when the rewinding of the film is completed, this film detection switch (FIS) will be closed, so proceed to # 143 and set the output terminal (RWSTA). Reset to "H" to finish film rewinding operation.

Next, at # 144, it is determined whether or not an interrupt signal is input from the interrupt terminal (INT ₀ ). If the interrupt signal is input, the process proceeds to the mode switching routine of FIG. If the interrupt signal is not input from the interrupt terminal (INT ₀ ), proceed to # 145, determine whether the interrupt signal is input from the interrupt terminal (INT ₁ ), and if the interrupt signal is input, 20 Proceed to the case back routine shown in Fig.
If no interrupt signal is input in # 145, ST in # 150
Proceed to OP routine.

Finally, the STOP routine from # 150 will be explained. First, in this STOP routine, at # 150, the output terminal (PWC) of the microcomputer (MC) is set to "L" to make the transistor (BT) non-conductive, and the power supply from the line (+ V) is stopped. Then, in # 151, the display of the release lock warning element (RLW), charge completion display element (CHC) and close-up distance display element (DW) is turned off, and in # 152, the output terminal (AEL) of the microcomputer (MC) is set to "H". AE by exposure control circuit (AE)
unlock. Furthermore, in # 153, each interrupt pin
Interrupts by the interrupt signals from (INT ₀ ) (INT ₁ ) (INT ₂ ) are enabled, and in # 154 the flash flag (FLF) is set to “1” when flash photography is set to “1”. Is determined.

If the flash flag (FLF) is not set here, the operation ends. If the flash flag (FLF) is set, the process proceeds to # 155 and the output terminal (FLSTA) of the microcomputer (MC) is set to "L". Flash circuit (FL)
Start boosting for charging the main capacitor of # 15
At 6 the output terminal (DSTA) is set to “L” and the completion of charging is detected. Then, in # 157, wait for the output terminal (CHS) of the flash circuit (FL) to go to "L" and complete the charging of the main capacitor, and when charging is complete, set the output terminal (DSTA) to "H" in # 158. To cancel the charging completion detection operation, and #
At 159, the output terminal (FLSTA) is set to "H" to cancel the boosting operation and end the operation.

In the above embodiment, the trimming range when the trimming mode is designated is defined as one type, but the present invention is not limited to this, and the trimming range can be switched to a plurality of stages. The trimming information of a plurality of bits may be recorded on the film.

Further, in the above embodiment, the switching of the focal length of the taking lens and the presence or absence of designation of the trimming mode are combined, but the present invention is not limited to this, and the focal length of the taking lens is fixed. It can also be applied to cameras that have a trimming mode that does not have a normal shooting mode.

As described above in detail, when the trimming mode is set, the camera according to the present invention shields a portion that is printed in the normal shooting mode and is not printed in the trimming mode from light to determine whether or not the trimming mode is set. It is characterized in that information for discriminating is recorded.
Therefore, in the print in the trimming mode, it is possible to record the information for accurately determining whether or not the trimming mode is set without taking a picture, and it is possible to solve the problems of the conventional camera as described above. It is possible to provide a camera that can be accurately read in a photo lab.

[Brief description of drawings]

FIG. 1 is a perspective view of a camera according to an embodiment of the present invention, FIG. 2 is a view from above of a finder section and a trimming information imprinting section in the trimming mode, and FIG. FIG. 4, FIG. 4 is a view showing a state of the normal photographing mode of FIG. 2, FIG. 5 is a front view showing a photographing lens control mechanism in a mode other than the close-up mode, and FIG.
FIG. 7 is a front view showing the photographing lens control mechanism in the close-up mode, FIGS. 7 and 8 are front views showing modified examples of FIGS. 5 and 6, and FIG. 9 is a liquid crystal display of this embodiment. FIG. 10 is a diagram showing a display mode by the device, FIG. 10 is a diagram showing various combinations of changes in the focal length of the photographing lens and presence or absence of designation of a trimming mode, and FIG. 11 is a diagram showing various imprinting positions of trimming information. FIG. 12 is a front view showing the arrangement of the light receiving elements of the distance measuring device in this embodiment, FIG. 13 is a block diagram showing the electric circuit in the camera of this embodiment, and FIG. 14 is the sliding of the sliding brush. FIG. 15 is a circuit diagram showing a more specific configuration of the pulse generator shown in FIG. 13, and FIG. 16 is a graph showing the change of the output signal of the code plate due to movement. FIG. 17 is a circuit diagram showing a specific configuration, and FIG. 17 is the exposure control in this embodiment. Graph showing the program, 18
Figure is a schematic diagram showing the opening and closing waveform of the shutter, Fig. 19, Fig.
FIG. 20, FIG. 21 and FIG. 22 are flowcharts showing the operation of this embodiment. (1) (BL) (CO) (ST) (TE) (CL); setting means,
(36); light-shielding means, (37), (38) (TRIP); recording means.

Front page continuation (72) Inventor Kudo ▲ Yoshi ▼ Shin 2-30 Azuchi-cho, Higashi-ku, Osaka-shi, Osaka, Osaka, Osaka International Building Minolta Camera Co., Ltd. (72) Inventor Hiroshi Ueda 2-chome, Azuchi-cho, Higashi-ku, Osaka-shi, Osaka No. 30 Osaka Osaka International Building Minolta Camera Co., Ltd. Examiner Mitsunobu Machida (56) Reference JP 54-26721 (JP, A) Actual 60-145428 (JP, U)

Claims (1)

[Claims] 1. A setting means for selectively setting a normal shooting mode and a trimming mode in which a printing range is narrower than the normal shooting mode, and when the trimming mode is set by the setting means, in the normal shooting mode. A trimming information recording camera, comprising: a recording unit that shields a portion that is printed and is not printed in a trimming mode and records information for determining whether or not the trimming mode is set.