JPH11231391A - Photographic camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use an operation input part in which input operation is performed for every set item in a multiple-mode without assigning an input mode switching function to the operation input part itself. SOLUTION: A box-shaped lens barrier 3 is provided to freely slide in a lateral direction in a camera body 2. When the barrier 3 is made to slide rightward, hook pawls 17 and 18 are engaged with the necessary part of a lock plate 20 and the barrier 3 is locked at a photographing position. A strobe light emitting part 4 pops up and a main switch is turned on interlocked with the pop-up of the part 4, then a photographing mode is set. In the photographing mode, the operation input part 12 is used as the operation part of the various set items in the photographing mode. The end of the barrier 3 is used as a grip part. When the light emitting part 4 is operated to be depressed, the main switch is turned off and an auxiliary mode is set. The input part 12 is used as the operation part for another set item in the auxiliary mode. When a knob 16 provided on a battery chamber cover 15 is operated, the barrier 3 is operated to slide further and a loading chamber cover 24 is exposed, so that the film cartridge can be exchanged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic camera having a lens barrier for opening and closing the front of a taking lens.

[0002]

2. Description of the Related Art A widespread photographic camera has been reduced in size in order to improve portability, and when not in use, it can be easily carried in a pocket as well as in a hand-held bag. Many of these cameras are provided with a lens barrier to prevent the taking lens from being stained when the camera is carried. The conventional lens barrier covers only the photographing window in front of the photographing lens, and also covers the viewfinder, metering window, and distance measuring window in addition to the photographing lens over a wide area in front of the camera body. Some cameras further cover the top of the camera body so that the shutter button can be hidden when not in use.

The present applicant has filed a Japanese Patent Application No. 8-26 filed earlier.
No. 0790 proposes a camera with a unique lens barrier. The lens barrier used here has a box-like shape that covers most of the camera body integrally from the right hand grip side of the camera body to the front of the taking lens. It has a rectangular parallelepiped shape with almost no irregularities.

[0004] In addition, a strobe light emitting portion provided in a pop-up manner on the upper surface of the camera body is covered with a lens barrier after being folded in the camera body, and only the joint between the lens barrier and the left hand grip side of the camera body remains. Then, no other gap appears. Therefore, it also has an excellent effect on dustproofness when carried. Further, the lens barrier is slid to the right hand grip side during use, and the slide-side end of the lens barrier is used as a grip. For this reason, the inconvenience that the entire size is appropriately larger than when the portable device is used and the operation becomes difficult due to compactness can be solved.

[0005] Some of the lens barriers that open and close only the front surface of the photographing lens open and close the lens barrier electrically. However, lens barriers that cover a wide range of the front surface of the camera body and the above-described box-shaped lens barrier are described below. It is structurally difficult to open and close it electrically, and it is convenient to make it manually openable from the viewpoint of compactness of the camera. In a conventional camera having a manually openable lens barrier, when the lens barrier moves to a predetermined open position, a main switch of the camera is turned on, for example, the taking lens is moved from the retracted position to the shooting position, or the built-in flash is used. The charging of the capacitor is started so that it can be used, and a transition is made to a shooting standby state.

However, in order to detect that the lens barrier has been opened to a predetermined position, a switch is required between the camera body and the lens barrier, and a space for assembling the camera in the thickness direction of the camera is required. In the case where the strobe light emission unit is popped up in the movement area of the lens barrier or the shooting lens is extended in a shooting standby state, when the lens barrier is manually closed, these are set in predetermined storage positions. Until it moves, the closing operation of the lens barrier must be prohibited, and there is a disadvantage that the opening and closing mechanism of the lens barrier tends to be complicated.

The drawback is that the strobe light-emitting portion pops up when the lens barrier is moved to a predetermined open position, and the main switch is turned on in conjunction with the pop-up, and the strobe light is emitted prior to closing the lens barrier. This can be avoided by turning off the main switch when releasing the unit to the storage position and releasing the engagement of the lens barrier. That is, according to the above configuration, the strobe light emitting unit is securely stored before the closing operation of the lens barrier, and in the case where the lens barrel projects, the main switch is turned off at the beginning of the stow light emitting unit storing operation. As a result, the lens barrel can be retracted, so that at the time of performing the closing operation of the lens barrier, both the strobe light emitting unit and the lens barrel can be stored in the storage positions.

Further, a switch for detecting that the lens barrier has moved to a predetermined open position or that the lens barrier has been moved in the closing direction from the open position is not required, and the strobe light emitting unit and the lens barrel can be moved to the storage position. The safety mechanism for prohibiting the movement of the lens barrier in the closing direction until the movement is securely performed can be simplified, which is very advantageous in improving operability and reducing the size of the camera.

[0009] On the other hand, with the downsizing of the camera, the installation space for various operation input units is restricted. The items that require operation input include the use of the strobe, the use of the self-timer, the non-use of the self-timer, and the setting of the viewfinder field according to the print size for cameras with print size specification functions. There is a setting item of the shooting mode that has a great effect on Furthermore, in cameras with date recording functions that record information such as the shooting date for each shooting frame, the necessity of date recording, selection of date / time recording, and correction of date and time In addition, a camera with a function to specify the number of prints, such as setting the number of prints, does not directly affect photography or the operation itself, and is an auxiliary setting left to the discretion of the photographer And setting items for adjustment.

In these operation input sections, generally, operation buttons for inputting signals by pressing are frequently used. However, providing individual operation buttons for each of the above-mentioned many setting items is a space in a compact camera. Very difficult. Therefore, a device has been devised so that several prepared operation buttons can be used for setting operation of different types of items by switching input modes. For example, when using four operation buttons, one of them is assigned for mode switching, and the function of the other three operation buttons is changed by switching the input mode depending on the number of times of pressing or the length of pressing time. is there.

[0011]

However, when the operation input section provided according to the setting items of the shooting mode and the auxiliary setting items is constituted by a plurality of operation buttons, one of them is used for switching the input mode. If it is used only for that purpose, it becomes impossible to assign setting items to the operation button. Therefore, in order to cope without increasing the number of operation buttons or reducing the number of setting items, it is necessary to increase the number of setting items assigned to other operation buttons. As the number of setting items assigned to one operation button increases, the hierarchical structure of the setting items becomes deeper, making it difficult to find the setting item intended by the photographer. There's a problem.

In particular, when the box-shaped lens barrier is used to cover a wide area of the camera body even when the camera body is moved to the shooting position as described above, the installation space for the operation buttons is considerably restricted, and Therefore, it is disadvantageous to use one of a limited number of operation buttons to switch the input mode, since the operation buttons are reduced in size and the interval between the operation buttons is reduced. In addition, the fact that the input mode of the operation buttons is switched means that a small liquid crystal (L) generally provided on the top or back of the camera body is used.
Although it is displayed on a CD) panel, the LCD panel only displays marks and abbreviations, so that it is difficult to confirm the input mode.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above background, and has as its object to assign an input mode switching function to an operation input unit itself for performing an input operation for each setting item. An object of the present invention is to make it possible to use in multiple modes and to easily identify the switching state of the input mode. Also, if the flash is opened by opening the lens barrier and the main switch is turned on in conjunction with this to shift to the shooting mode in which shooting operations can be performed, the camera is automatically turned on if left untouched. It is an object of the present invention to provide a camera which can be set to an off mode to avoid wasteful power consumption and can easily return to a photographing mode.

Furthermore, a box-shaped lens barrier is used to cover the loading lid that is opened and closed when the film cartridge is loaded so as to cover the loading chamber of the film cartridge more reliably when the camera is not in use or when it is in use. For the camera, the drive of the film feed motor is controlled according to whether or not the light blocking function by the lens barrier has been cut off, and appropriate photographing is guaranteed. It is another object of the present invention to prevent the lens barrel from being unnecessarily moved in and out when the lens barrel is configured to be extended.

[0015]

According to the present invention, in order to attain the above object, a strobe light emitting portion is popped up to a use position by opening a lens barrier, and in conjunction with this, a main switch is turned on to set a camera in a shooting mode. The shooting mode is shifted to the auxiliary mode in response to the main switch being turned off due to the displacement of the strobe light emitting unit to the unused position, and in this auxiliary mode, the shooting mode is set under the shooting mode. Another configuration function different from the shooting mode setting function is assigned to the operation input unit having the setting function, and the shutter release operation is invalidated.

Further, when the main switch is kept on or off continuously for a certain period of time, and when no operation signal is obtained from the operation input section in at least one of the modes, the main switch is shifted to an off mode, It is also effective to invalidate the operation and the operation input from the operation input unit and deactivate the display unit that displays the information set by the operation input unit. Also,
In the off mode, the main switch is turned on to return to the photographing mode, or in the case of a camera using a IX240 type film cartridge, the shutter opening / closing mechanism for opening / closing the film entrance / exit incorporated in the film cartridge is opened by the lid opening / closing mechanism. It is effective from the viewpoint of operability to return to the photographing mode when the camera is turned on.

Using a box-shaped lens barrier, the lens can be moved from a photographing position in which the front surface of the photographing lens is opened and the film cover of the film cartridge is light-tightly covered to a load position allowing the opening and closing operation of the film cover. When the film cartridge is loaded from the loading position to the photographing position, the lid opening / closing mechanism is operated to open the film opening / closing light-shielding lid incorporated in the film cartridge. A cartridge detection switch for detecting the presence / absence, a barrier detection switch for detecting that the lens barrier has moved to the loading position and outputting a barrier removal signal, and a lid open detection switch for detecting that the light shielding lid has been opened. Provided, the mounting of the lens barrier is detected by the barrier detection switch, and the cartridge detection Tsu better to loading of the film cartridge to initiate a response to the initial driving of the film feeding motor to receiving a detection signal from the cover open switch state detected by the switch.

Further, a film cartridge loading signal and a light shielding cover opening signal are obtained from the cartridge detecting switch and the lid opening detecting switch, respectively, and the film feeding motor is driven to send out the film from the film cartridge. When a signal to open the light-shielding lid is obtained again from the lid open detection switch before the film is rewound into the cartridge, the film may be rewound into the film cartridge. It can be prevented that shooting is continued as it is. Further, when the lens barrel holding the photographing lens is retracted, the movement of the lens barrel is prohibited when the lens barrier is moved beyond the photographing position, or the lens barrel protrudes to the photographing position. Sometimes it is better to return this to the retracted position.

[0019]

1 and 2 show the appearance of a camera using the present invention when it is used and when it is carried, and FIG. 3 shows the rear side appearance when it is used. A box-shaped lens barrier 3 is slidably mounted on the right hand grip side of the camera body 2, and in the non-use state shown in FIG. Covered. The lens barrier 3 is made of a high-hardness metal such as titanium so as not to be easily deformed, and the surface on the left hand grip side is covered with the same metal. These surfaces have almost no irregularities, and when the lens barrier 3 is closed, the whole becomes a substantially rectangular parallelepiped, and has a shape that is very easy to carry.

When the lens barrier 3 is slid rightward from the state shown in FIG. 2, the strobe light emitting section 4 incorporated in the camera body 2 pops up by the bias of the spring,
The lens barrier 3 is mechanically locked at a fixed open position (photographing position). When the strobe light emitting unit 4 pops up and reaches the use position, a main switch described later is turned on. In response, the flash starts charging,
Further, the lens barrel 5 holding the photographing lens is extended to the photographing position, and the mode shifts from the off mode to the photographing mode in which photographing operation is possible.

In the photographing mode, an oscillator having a transmission frequency of 4 MHz is operated in order to drive the CPU controlling the entire sequence of the camera in the high-speed mode.
Obtain a clock frequency of 0 KHz. Transmission frequency 4MHz
Since a driving voltage of 5 V is required to operate the oscillator, the voltage of the battery (lithium ion battery) serving as a power supply is boosted to 5 V by a boosting circuit and used. In the off mode, the CPU is in the low-speed mode, and the oscillator having the transmission frequency of 35 KHz operates instead of the 4 MHz oscillator, and the clock frequency is 16 KHz. Transmission frequency 35K
Since the Hz oscillator can be driven at 3 V, the booster circuit does not operate, so that power consumption can be suppressed as compared with the case of driving in the high-speed mode.

When the lens barrier 3 is locked at the photographing position, the shutter button 6 provided on the upper surface thereof is positioned at a position where a shutter release operation can be performed. Since the operation signal transmitted to the camera body 2 when the shutter button 6 is operated is not an electric signal but a mechanical displacement signal, an electric connection between the camera body 2 and the lens barrier 3 becomes unnecessary. Even if the shutter button 6 is operated with the lens barrier 3 closed, no operation signal is transmitted to the camera body 2 side.

When the lens barrier 2 is opened, a light metering window 7 and a light emitting window 8 for distance measurement are installed in the front of the camera body 2.
The photographing operation can be performed on condition that the light receiving window 9 is exposed and the lens barrier 3 is moved to the photographing position. Note that the objective window 10 and the eyepiece window 11 of the finder are provided.
(FIG. 3) is incorporated on the left hand grip side and is always exposed on the surface. However, if these are provided in the movement area of the lens barrier 3, the finder can be covered with the lens barrier 2 when not in use.

Various mode settings necessary prior to the photographing operation can be performed by the operation input unit 12 that appears on the back of the camera body 2 when the lens barrier 3 is opened, as shown in FIG. The operation input unit 12 has four push buttons 12a.
12d. By pressing these, the internal rubber switch can be turned on, and the setting status can be confirmed by the display on the operation display LCD 13 composed of a liquid crystal display panel. The operation display LCD 13 can display the current date and time or the date and time. When the display is performed, data as displayed is recorded at a position corresponding to the photographed frame.

The functions of the push buttons 12a to 12d in the photographing mode are as follows. (a) Push button 12a... Strobe mode button Normal is "auto mode (low-brightness automatic flash)", "pre-flash mode (preliminary flash for red-eye prevention)", " Flash mode (forced flash) ",
The rotation is switched in the order of “flash off mode”, “landscape shooting mode (flash off with the focus of the shooting lens at infinity)”, and “night shooting mode (compulsory flash with pre-flash)”. (b) Push button 12b... Self mode button Normally turns off the self-timer, and switches on / off the self-timer to the rotary type each time a pressing operation is performed. The self-timer is activated by a shutter button.

(C) Push button switch 12c: print trimming mode Normal is "H mode (high-definition print)", and "C mode (convention print)", "P mode (panorama print) for each pressing operation" To the rotary type. The film is shot at a high-definition aspect ratio.
In the “mode”, a part of the shooting screen is masked when printing. (d) Push button switch 12d: Rewind button Pressing the button continuously for 2 seconds executes film rewind.

A battery chamber cover 15 is provided behind the strobe light emitting section 4. The strobe light emitting unit 4 is mounted by pivotally attaching an axis integrated with the strobe light emitting unit 4 to the camera body 2, and the battery chamber cover 15 is pivotally attached to this axis. Axle-mounted. Battery compartment lid 1
When the lens 5 is rotated clockwise in the figure, the battery chamber appears, but when the lens barrier 3 is at the illustrated photographing position, the right end side of the battery chamber cover 15 is partially covered with the lens barrier 3, and this can be opened. I cannot do it.

A lock release knob 16 for the lens barrier 2 is provided at a corner of the battery chamber cover 15. Battery compartment lid 1
When the lock release knob 16 is operated to the right with the shutter 5 closed, the lens barrier 3 is unlocked and can be further slid rightward from the shooting position. Thereby, the battery chamber lid 15 can be opened,
The battery 56 (FIG. 6) can be replaced. When the battery compartment cover 15 is opened, the back surface side of the strobe light emitting portion 4 is pressed by the edge of the battery compartment cover 15 on the shaft attachment portion side, and the strobe light emitting portion 4 is folded. At this time, the main switch is turned off at the moment when the strobe light emitting unit 4 is folded from the use position.
Therefore, the battery is not replaced while the main switch is on. Note that a lithium ion battery with a voltage of 3 V is used as the battery 56.

FIG. 4 shows a lock mechanism of the lens barrier 3. On the upper surface of the camera body 2, two lock claws 17 and 18 having inclined shapes which are opposite to each other project by spring bias. A lock plate 20 is fixed to the inner wall of the upper surface of the lens barrier 3, and a lock edge 20 formed on the lock plate 20 is formed.
a and 20b engage with the lock claws 17 and 18 to lock the lens barrier 20 at the photographing position. When the lens barrier 3 is slid toward the photographing position from the state shown in FIG. 2, the lock claws 17, 18 first protrude at the moment when the lock edge 20b passes over the lock claws 17, 18.

When the lock claws 17 protrude, even if the user tries to slide the lens barrier 3 in the same direction, the operation is prevented by the engagement with the lock edge 20a. Further, even if the user tries to slide the lens barrier 3 in the closing direction, the operation is prohibited because the lock claw 18 engages with the lock edge 20b. Thereby, the lens barrier 3 is locked at the photographing position shown in FIGS.

The lock claw 18 is pulled in from the upper surface of the camera body 2 in conjunction with folding the strobe light emitting unit 4. Therefore, when closing the lens barrier 3 after the photographing operation, the strobe light emitting unit 4 may be folded down and then the lens barrier 3 may be slid in the closing direction. When the lens barrier 3 is slid to the closed position, the lock plate 2
After the holding claw 20c provided on the right end side of 0 pushes back the holding lever 21 on the upper surface of the camera body against the bias of the spring, it is lightly restrained by the claw portion. As a result, the lens barrier 3 is click-stopped to the closed position by the holding lever 21 and is not accidentally opened.

When the lens barrier 3 is further slid in the opening direction for battery replacement or loading of the film cartridge, the lock release knob 16 provided at the corner of the battery chamber cover 15 is turned rightward in the drawing as described above. Manipulate. As a result, the lock claw 17 is retracted from the upper surface of the camera body 2 against the bias of the spring, and the lens barrier 3 can be further slid in the opening direction. Note that the lock release knob 16 is spring-biased to the left, and the operating piece for pulling in the lock claw 17 does not normally protrude from the right edge of the battery chamber cover 16 in the drawing due to the spring bias. When the finger is released from the battery compartment cover 15
The opening operation of is not hindered.

Further, as shown in the figure, the claw portion of the holding lever 21 engages with the holding claw 20d of the lock plate 20 to restrict the movement of the lens barrier 3 in the opening direction. This prevents the lens barrier 3 from being carelessly pulled out of the camera body 2. Of course, when the lens barrier 3 is further strongly pulled, the holding lever 21 swings counterclockwise against the bias of the spring. When the lens barrier 2 is pulled out of the camera body 2 in this manner, as shown in FIG. 4, a loading lid 24 provided at the bottom of the camera body 2 is exposed, and by opening and closing this, a loading of the film cartridge 25 is performed.
Can be taken out.

Since the loading lid 24 is locked in the closed position by the click mechanism, the opening / closing operation can be easily performed after the lens barrier 3 is removed. Further, when the loading lid 24 is simply click-locked at the closed position, the light shielding in the loading chamber of the film cartridge 25 is not always sufficient, but by mounting the lens barrier 3 to a position covering the loading lid 24. As a result, reliable light shielding is obtained, and as a result, the lens barrier 3 also has a function of reliably shielding the loading chamber from light.

A spring piece 20 e is provided integrally with the lock plate 20, and its free end is fixed to the bottom surface of the shutter button 6 penetrating the upper surface of the lens barrier 3. A projection is formed on the bottom surface of the shutter button 6, and the lens barrier 3 is
When the user slides to the photographing position shown in FIG. 3, it is located directly above the release pin 22 whose tip surface is exposed on the upper surface of the camera body 2. By pressing the shutter button 6 in this state, a release operation signal can be mechanically transmitted to the camera. The mechanically transmitted release operation signal is detected by a release switch 22 a (FIG. 6) provided below the release pin 22. No electrical connection is required.

The camera uses a well-known IX240 type film cartridge 25. The film cartridge 25 has a light-shielding lid 26 for opening and closing the film entrance, and both end surfaces 26a of a shaft integrally connected to the light-shielding lid are exposed to the outside of the cartridge case. A key hole is provided on both end surfaces 26a. When the film cartridge 25 is loaded into the camera, a keyed opening / closing shaft 27 provided in the loading chamber fits into the key hole, and the light shielding cover is opened and closed by rotating the key hole. Done. If the spool 25a is rotated in the film feeding direction after opening the light shielding cover 26, the film stored in the cartridge case can be sent out from the film entrance.

A data disk 25b having a bar code attached to its surface is fixed to the spool 25a, and the bar code indicates the type of film, the ISO sensitivity, and the number of images that can be taken. After loading the film cartridge 25,
Before starting the feeding of the film, the bar code is read by the reflection type photo sensor provided in the loading chamber while the initial drive of the feeding motor is performed to rotate the spool 25a a fixed number of times in the film winding direction. , The film information is automatically read.

Further, a display plate is connected to the spool 25a so that the use state of the film can be visually recognized from the outside, and can be confirmed through a display window formed on the bottom side in FIG. For this reason, after the film is completely wound into the cartridge case after photographing, the spool 25
The control of the stop position of the film feeding motor is performed on the camera side so that a is stopped at the rotation position corresponding to the use state of the film.

A lid opening / closing lever 28 is incorporated in the camera body 2 as a lid opening / closing mechanism for opening / closing the light shielding lid 26 of the film cartridge 25 by moving the lens barrier 3.
With the lens barrier 3 removed, the tip slightly projects from the back of the camera body 2. Lid open / close lever 2
8 is urged in the counterclockwise direction in the figure, and the opening / closing shaft 27 is fixed to its rotating shaft. Then, when the lens barrier 3 is removed, the lens barrier 3 is turned to the illustrated position by the bias of the spring, and the opening / closing shaft 27 is turned to a position where the light shielding cover 26 is closed. Further, in the process of fitting the lens barrier 3 to the camera body 2 and sliding it in the closing direction, the lid opening / closing lever 28 is rotated clockwise against the bias of the spring at the rear edge of the lens barrier 3. Thereby, the opening / closing shaft 27 is rotated to a position where the light shielding cover 26 is opened.

When the loading lid 24 is opened, the lens barrier 3 is detached from the camera body 2. In order to detect the removal of the lens barrier 3, a button protruding from the right hand grip side end of the back of the camera body is detected. 29 are provided. Behind button 29, barrier detection switch 29
a (see FIG. 7), and outputs a barrier removal signal when the lens barrier 2 is removed.

In order to prevent the lens barrier 3 from being completely separated from the camera body 2 when the lens barrier 3 is removed for opening and closing the loading lid 24, the lens barrier 3 is connected to the camera body 2 by, for example, a chain or a strap. Or the lens barrier 3 is inseparably connected to the camera body 2 by pin-slot engagement, and after the slide barrier 3 is fully slid to the right, the right hand grip side of the slide barrier 3 is moved. It is also possible to adopt a configuration in which the loading lid 24 is exposed by being tilted upward. According to this, there is no danger of the slide barrier 3 being lost or being deformed by an inadvertent external force after being removed.

FIGS. 6 and 7 schematically show the mechanical and electrical configuration of the camera. On the upper wall of the loading chamber 32 in which the film cartridge 25 is loaded, a support shaft 33 that rotatably supports the upper end of the spool 25a, and a detector for detecting whether or not the film cartridge 25 is loaded in the loading chamber 33. The detection piece 34 protrudes. When the film cartridge 25 is loaded, the detection piece 34 is pushed on its upper surface, and a loading signal is output from the cartridge detection switch 34a.

A drive shaft 36 that engages with the lower end of the spool 25a and rotates the spool 25a is incorporated into the loading lid 24, and engages with the feed drive mechanism 37 when the loading lid 24 is closed. The feed drive mechanism 37 includes a clutch mechanism such as a gear train for driving force transmission and a planetary gear mechanism.
The camera is driven by a feed motor 40 incorporated in a take-up spool 39 of the camera.

When the film cartridge 25 is newly loaded and the loading lid 24 is closed, the cartridge detecting switch 3
5, a loading signal is obtained. When the lens barrier 3 is mounted, the lens barrier 3 is turned on by the barrier detection switch 29a.
The light-shielding lid 26 is rotated to the open position by the rotation of the lid opening / closing lever 28. When the lid opening / closing lever 28 is surely rotated to the open position, a detection signal is obtained from the lid open detection switch 28a shown in FIG.

In response to these signals, the feed motor 40 rotates in the reverse direction, and the spool 25a rotates in the film winding direction. While the spool 25a rotates in the reverse direction, a bar code is read from the data disk 25b by a reflection type photo sensor incorporated in the upper wall of the loading chamber 32, and the film data such as the type and the number of loaded films is read. It is. Further, since the first stop position of the spool 25a is predetermined according to the use condition of the film cartridge 25, by simultaneously reading which position the reference position of the data disk 25b was initially,
It is possible to identify whether or not the loaded film cartridge 25 can be photographed.

After the film data is read from the data disk 25b, the feed motor 40 rotates forward to rotate the spool 25a in the film feeding direction, and the camera-side winding spool 39 rotates in the winding direction. The start frame setting process is started. Spool 25
The film 42 is sent out of the cartridge case by the rotation of a. The leading end of the film 42 is the take-up spool 3.
9, the rotation load of the take-up spool 39 increases, and the take-up spool 39 is driven by the switching of the clutch mechanism incorporated in the feed drive mechanism 37 to drive the drive shaft 36.
Is driven and feeding is continued.

A photo sensor 44 for detecting perforation is provided in the film feeding path, and detects the passage of the perforation 42a. Perforation 42
As shown in FIG. 7, a is opened at two positions per frame and at positions corresponding to both ends of one frame.
By stopping the driving of the feed motor 40 when the first perforation 42a is detected, the first frame stops at the shooting position behind the aperture. After the second frame, the feed motor 40 may be stopped when two perforations 42a are detected.

The above-described start frame setting processing and 2
The feed control after the frame is performed by the CPU 45 and the R in the memory 46.
It is executed under a sequence program stored in the OM area. The signal from the photo sensor 44 is input to the CPU 45 after the waveform is shaped by the PF signal generator 47, and the drive control of the feed motor 40 is performed via the motor driver 49.

A transparent magnetic recording layer is applied to the back side of the film 42. The magnetic head 50 is driven via the head driver 49 during the film feeding, and the photographing date is displayed outside the frame of the photographed frame. Data such as date and date and data such as exposure conditions are recorded. The rotation speed of the feed motor 40 is controlled by the encoder 5 so that magnetic recording can be performed properly.
2 and the magnetic head 50 based on the period of the encode pulse output from the ENC signal generator 53.
Is controlled. The magnetic head 50 is also used for reading, and it is possible to cope with a case where the film cartridge 25 which has been photographed halfway through the film 42 is loaded by confirming up to which frame data has been recorded. It has become.

As shown in FIG. 6, a finder unit 54 is incorporated above the film winding chamber. A finder LCD 55 is provided in the finder unit 54, and displays a field frame of a corresponding size in the finder field according to the set state by the push button 12c of the operation input unit 12. Reference numeral 56 in FIG. 6 indicates a battery.

The CPU 45 executes the sequence program in the photographing mode and the off mode described above, and further in the auxiliary mode described later, in the course of executing the sequence program,
a, a barrier detection switch 29a, a cartridge detection switch 34a, and a main switch 4a that is turned on when the strobe light emitting unit 4 is moved to the pop-up position.
The off status is monitored. Further, the operation signal input circuit 58
, The operation signal from the release switch 22a and the operation signal from the operation input unit 12 are monitored. The lens barrel drive motor 59 is driven when the lens barrel 5 is extended and retracted, and the lens barrel position detection circuit 60 determines whether the lens barrel 5 is in the collapsed position.
It detects which of the shooting positions it is.

The off mode timer 62 inputs an off mode signal to the CPU 45 when the camera measures a predetermined time (for example, 5 minutes) in the shooting mode in which the shooting operation or the film cartridge 25 exchange operation is possible. When the main switch 4a is turned off, the camera shifts from the photographing mode to the auxiliary mode. When the camera shifts to the auxiliary mode, the off mode timer 62 measures a predetermined time. After a lapse of minutes, an off mode signal is input to the CPU 45.

In the photographing mode, the drive voltage of 5 V is increased by the operation of the step-up circuit 63 so that the oscillator 64 having the oscillation frequency of 4 MHz is used.
And the CPU 45 is driven in the high-speed mode. When the mode shifts to the off mode, the boosting circuit 63 is turned off, and the transmission frequency 35K operated at 3V from the battery 56 is used.
In response to the clock signal from the oscillator 65 of the Hz, it is driven in the low-speed mode.

In the photographing mode, the main switch 4a
When is turned off, the mode shifts from the shooting mode to the auxiliary mode.
In the auxiliary mode, the push button 12a of the operation input unit 12
Setting items assigned to .about.12d are used to select whether or not to magnetically record date data in a corresponding frame at the time of photographing, to select what type of date data is to be recorded, and to switch for correcting date data. Can be The format of the selected date and the data content at the time of correction are displayed on the operation display LCD 13 each time.

Push buttons 12a-1 in auxiliary mode
The function of 2d is as follows. (a) Push button 12a: Necessity of date recording and change type button Normally displays and records "year-month-day", and "year-day-month" and "day- The rotation is switched in the order of "month-year", "time", and "no display (no recording)". Further, when the button is continuously pressed for two seconds, the mode shifts to the date correction mode. When the button is pressed in the date correction mode, the mode is returned from the date correction mode to the normal date display mode. (b) Push button 12b: Digit change button in date correction mode Normal selects the correction digit "year", and changes the correction digit to "month", "day", "hour", " Rotation switching is performed in the order of minutes. The correction digit is displayed by flashing.

(C) Push button switch 12c: date correction input Each time the pressing operation is performed, the numerical value of the selected correction digit is incremented by one. When the button is continuously pressed for one second, the value of the correction digit is continuously incremented by one at a cycle of 125 msec. (d) Push button switch 12d: Rewind button Pressing the button continuously for 2 seconds executes film rewind.

In the date correction mode, when a change in the main switch 4a or the cover open detection switch 28a is detected, the currently displayed "year", "month", "day", "hour" are displayed. , "Minutes" are determined, the "seconds" data serving as a reference for date measurement are reset to "0", and the correction mode is released.

The CPU 45 activates another load circuit and the device 64 in the course of executing the sequence program, or confirms the operation. Other load circuits and devices 6
Reference numeral 4 includes well-known circuits and devices necessary for photographing, such as a shutter device including a shutter blade also serving as an aperture and a motor for driving the same, an exposure control circuit, an autofocus device, and a strobe circuit. An operation confirmation flag when the load circuit and the device 64 are operated, photometric data obtained by measurement, subject distance data, and the like are temporarily stored in the RAM area of the memory 46, and are appropriately stored in the CPU 45 during the shooting sequence. Referenced by

The EEPROM 65 stores reference data and adjustment data set by adjusting in advance in the manufacturing stage.
For example, it is referred to when calculating a shutter speed or a subject distance from data obtained when an exposure control device or an autofocus device is operated. Also, the main switch 4
Data and flags that need to be saved continuously even after the power is turned off, data that indicates the type of abnormality when an abnormality occurs during the electrical control process, and history such as the total number of shots Information can also be stored in the EEPROM 65.

The mode switching process of the camera will be described below with reference to the flowchart shown in FIG.
In these flowcharts, the “main switch 4a” is set to “Msw” and the “lid open detection switch 28
"a" is represented by "Dsw", "Barrier detection switch 29a" is represented by "Bsw", and "Cartridge detection switch 34a" is represented by "Csw".

As shown in FIG. 8, first, the lens barrier 3 is slid toward the photographing position, and when the restraint by the lens barrier 3 is released, the strobe light emitting unit 4 pops up by the bias of the spring. When the strobe light emitting unit 4 completely projects to the pop-up position, the main switch 4a is turned on. When receiving the ON signal from the main switch 4a,
The CPU 45 activates the booster circuit 63 and operates in the high-speed mode with a 4 MHz clock pulse from the oscillator 64.
In addition, charging of the main capacitor for light emission for flash photography is started. Before the lens barrier 3 is opened, the CPU 45 operates in the low-speed mode in response to the clock pulse of 16 KHz from the oscillator 65, and the booster circuit 63 is in a non-operating state, so that the power consumption is kept low.

The CPU 45 further includes a main switch 4a
After the OFF mode timer 62 is cleared by the ON signal from the CPU, the timer starts, and the operation mode of the entire camera is set to the photographing mode. In the shooting mode, the user can operate the shutter button 6 to perform shooting. In addition, the user operates the push buttons 12a to 12d of the operation input unit 12 to perform flash shooting under the setting items assigned to the respective buttons. Switching of the mode, necessity of the self-timer, change of the print trimming size, and rewinding of the film can be performed when the shooting has been completed up to the middle frame.

The setting to the photographing mode is performed irrespective of whether or not the film cartridge 25 is loaded, so that the photographing operation can be performed as a demonstration.
In this case, data such as the ISO sensitivity of the film, the type of the film, and the frame number counter value necessary for executing the photographing sequence are set in advance in the EEPROM 6.
5 and processing is performed based on this. The operation of the push button 12d is invalidated, and the film rewinding process is not performed.

Further, in the photographing mode, the lens barrier 3 is removed, a new film cartridge 25 is loaded, and the lens barrier 3 is mounted, so that the barrier detection switch 29a, the cartridge detection switch 34a, and the lid open detection switch 28a are removed. When an appropriate signal is obtained, the feed motor 40 rotates in the reverse direction to confirm the initial stop position of the data disk 25b and to read the film type using a bar code. When it is confirmed that the cartridge is a new film cartridge, a start frame setting process is performed.

While the off mode timer 62 measures 5 minutes after the main switch 4a is turned on, the main switch 4a, the barrier detection switch 29a, and the lid open detection switch 28a have no signal change, and the push button 1
When there is no operation input from 2a to 12d,
After the off mode timer 62 is cleared, the camera shifts to the off mode. After shifting to the off mode, the CP
U45 suspends the monitoring of the signal change of the release switch 22a, so that the operation of the shutter button 6 is invalidated and the photographing is not performed. In the off mode, both the operation display LCD 13 and the finder LCD 55 are turned off. When the main switch 4a is once turned off and turned on again after the shift to the off mode, the mode is returned to the photographing mode again and the above processing is repeated.

When the photographer pushes the strobe light-emitting unit 4 from the pop-up position to turn off the main switch 4a while the off-mode timer 62 is counting time for 5 minutes in the photographing mode, the off-mode timer 62 The time measurement for 5 minutes is restarted from the point in time, and the mode shifts from the shooting mode to the auxiliary mode. In the auxiliary mode, the booster circuit 6
3 operates and the CPU 45 starts operating in the high-speed mode, but the operation of the shutter button 6 is invalidated as in the off mode.

When the mode is shifted to the auxiliary mode, the paragraph [0]
As described in [050] to [0053], the setting items assigned to the respective push buttons 12a to 12d of the operation input unit 12 are changed, so that the date information can be changed or corrected. Each time these push buttons are operated, the off mode timer 6
The 5-minute clock by 2 is updated.

As described above, when using the operation input unit 12 under the auxiliary setting items such as the display format of the date recorded at the time of photographing, the necessity of recording, and the correction of date data, the photographer must Press down the strobe light unit 4 and
When the pressing down of the strobe light emitting unit 4 is released, the main switch 4a is turned on and immediately returns to the normal photographing mode, so that there is no need to separately provide a mode switching operation button. Since the switching between the photographing mode and the auxiliary mode is performed by a clear operation of pressing down and releasing the strobe light emitting section 4, various setting and selecting operations can be made simple and easy to understand.

After shifting to the auxiliary mode, the main switch 4
When a is turned on, the off mode timer 62 is cleared and timekeeping is started again, and then the mode returns to the photographing mode. After shifting to the auxiliary mode, no operation signal is input from the operation input unit 12 and the main switch 4
When the time is measured for 5 minutes without any change in a, the mode shifts to the above-described off mode.

The camera uses an IX240 type film cartridge 25, and ensures that the loading chamber 32 is shielded from light by a lens barrier 3 which can be slid at any time. Since the opening and closing of the light shielding cover 26 for shielding the film entrance and exit of the film 25 is performed by sliding the lens barrier 3, in particular, the cartridge detection switch 34a (Csw), the barrier detection switch 29a (Bsw), and the lid open detection switch are provided. 28a (Ds
The combination of the ON / OFF states of w) is constantly monitored by the CPU 45. Then, when the states of C and G in the following table are detected based on the on / off states of these switches, it is determined that there is an abnormality, and an error is displayed on the operation display LCD 13.

[0071]

[Table 1]

The states "C" and "G" in Table 1 indicate the state in which the light shielding cover 26 is opened even though the lens barrier 3 is not mounted on the camera body 2, and for example, This occurs when the photographer turns the lid opening / closing lever 28 by hand with the lens barrier 3 removed. The error display performed in these states is continued until the state is switched to the state "A" or "D" in the state "C" and to the state "E" or "H" in the state "G". In the state "G", since there is a concern that external light fogging may occur in the loaded film, for example, in a situation where shooting is being performed halfway through the film, the film is forcibly rewound. Is good. In a situation where the barrier removal signal is being output from the barrier detection switch 29a, all normal processing performed by turning on the lid open detection switch 28a (opening the light shielding lid) is canceled.

Hereinafter, the flow of processing when the main switch 4a, lid open detection switch 28a, and barrier detection switch 29a characteristic of the above camera are turned on / off will be described with reference to the flowcharts of FIG.

As shown in FIG. 9, when the photographing mode is set by turning on the main switch 4a, first, the presence or absence of a lens barrel error flag is confirmed. The lens barrel error flag is
This is set when there is any abnormality in the movement control of the lens barrel 5 due to the camera operation performed up to that time.
With this flag set, the lens barrel drive motor 59
Driving is prohibited. Therefore, a new main switch 4a
Is turned on, the lens barrel error flag is cleared.

Subsequently, the flash set mode is checked, and the flash mode is updated to the auto mode unless the pre-flash mode is selected. After battery check,
The film frame number is read from the frame number counter set at a predetermined address in the RAM area of the memory 46, and the operation display LCD 13 displays the frame number. If the film cartridge 25 has not been loaded, this is indicated by blinking the film cartridge mark.

After confirming that the lens barrier 3 is mounted by the barrier detection switch 29a, the lens barrel drive motor 59 is driven, and the lens barrel 5 is extended from the retracted position to the photographing position. In a situation where the barrier detection switch 29a is turned off and a barrier removal signal is output, when the lens barrel 5 is in the retracted position, the driving of the lens barrel drive motor 59 is prohibited, and the lens barrel 5 is not in the retracted position. In this case, the lens barrel drive motor 59 is reversed and the lens barrel 5 is retracted to the retracted position.
When the main switch 4a is turned on to enter the shooting mode, charging of the main capacitor for strobe light emission is automatically started, and when the charging is completed, a charging completion flag is set.

FIG. 10 shows a processing procedure when the main switch 4a is turned off. When the main switch 4a is turned off, the mode shifts to the auxiliary mode described above. When the charging of the main capacitor for flash light emission is completed and the charging completion flag is set, the clearing is performed.
Thus, the charging can be started immediately when the main switch 4a is turned on next time.

The flash mode is checked and saved only when the pre-flash mode is set, and is set to the auto mode in the other flash modes. In addition, when the auto focus device is operated and light is projected from the light projecting window 8 by the LED for distance measurement, the light is turned off. Then, operation display LED1
The strobe mode display mark 3 is turned off, and when the self-timer mode is set, the self-timer mode is released. Further, after confirming that the lens barrel error flag is not set, the lens barrel 5 is moved to the retracted position by the reverse rotation of the lens barrel drive motor 59.

FIG. 11 shows a flow of a process performed when the lid opening switch 28a is turned on in a state where the lens barrier 3 is properly mounted. After the battery check, whether or not the film cartridge 25 is loaded is checked by turning on / off the cartridge detection switch 34a. When no film cartridge is loaded, the self-timer mode is reset after the cartridge mark is turned off, and the mode is set to the demo mode. Demo mode is EEPR, as described in paragraph [0059].
A photographing operation can be performed in a pseudo manner based on the data set up in the OM 65.

If the film cartridge 25 is loaded and the process of switching the use state display of the film cartridge 25 is being performed, the self-timer mode is reset, and the switch display is continued. And run. The process of switching the use state display of the film cartridge 25 is a process of rotating the spool 25a after all the film has been rewound into the cartridge case and stopping the spool 25a at a predetermined position according to the use state of the film.

When the use state display switching process is not performed, the process branches according to the number of film frames stored in the film counter. When shooting is completed for all frames of the film (frame number counter “E”), or when a new film cartridge 25 is loaded and the start frame setting process is not completed and the frame number counter is an undetermined value, respectively. Under the condition that normal processing (for example, start frame setting processing) or manual rewinding in the shooting mode is being performed, the film rewinding processing is automatically performed after the reset processing in the self-timer mode. The used state is switched on the film cartridge 25 by the use state display switching process.

The above processing is one of the measures for abnormal processing.
That is, during the execution of the normal processing or the manual rewind processing in the photographing mode, the lid open detection switch 28a is not originally switched from off to on. The reason why the lid open detection switch 28a is switched from off to on during such a period is that after the film cartridge 25 is loaded and the lens barrier 3 is once set to the photographing position, the lid open detection switch 28a is turned off. This is when the lens barrier 3 is returned to the shooting position again after the lens barrier 3 is pulled out. When the lens barrier 3 is operated in this manner, although it depends on the sliding amount of the lens barrier 3, there is a concern that the light shielding in the loading chamber 32 becomes uncertain, and external light fog occurs on the film. May be present.

Similarly, even if the photographing is performed halfway on the loaded film and the number of frames is counted in the frame number counter, the lid open detection switch 28a is originally turned off from on. It will not be replaced. Therefore, in this case as well, the same abnormal processing is performed, the film is automatically rewound, and the film cartridge 2
The use status display 5 is switched to used.

Further, when a new film cartridge 25 is loaded, the frame number counter is undetermined, and the normal processing or the manual rewinding processing in the photographing mode is not performed, the lid open detection switch 28a is turned off. The process branches depending on whether or not the timing of switching to ON is during the period of reading data from the data disk 25b. Then, during the data reading period, abnormal processing is performed. In the abnormal processing in this case, since the film is not fed out of the cartridge case, the rewinding processing is omitted, and the use state display of the film cartridge 25 is switched to the used state. As described above, even when the film is not fed from the cartridge case, the loading chamber 32 is kept in a state where the light shielding cover 26 is kept open.
If there is a concern that the light-shielding has become insufficient, it is preferable to perform the same abnormal processing and prohibit continuous shooting using the film.

The case where the switching timing of the lid open detection switch 28a from OFF to ON is not during the data reading period from the data disk 25b is due to a normal operation. In this case, the battery check is performed, and when OK is determined, the process proceeds to the start frame setting process. The start frame setting process also includes an initial drive process for rotating the feed motor 40 a certain number of times in order to read film information from the data disk 25b or to confirm the use state display of the film cartridge 25. After these processes, the feed motor 4
Zero forward rotation is performed.

FIG. 12 shows the processing when the lid open detection switch 28a is switched from ON to OFF. After the battery check, the presence or absence of the cartridge is checked, and when the film cartridge 25 is not loaded, the processing shown in FIG. In the spool key moving process, when the unused film cartridge 25 is newly loaded, the drive shaft 36 is moved to a rotational position where the key of the drive shaft 36 can be smoothly engaged with the key hole of the spool 25a. This represents a process for controlling the stop.

By the cooperation of the lens barrier 3 and the loading lid 24, the light shielding function in the loading chamber 32 is maintained until the lens barrier 3 is pulled out to the position where the barrier removal switch 29a outputs the barrier removal signal. In this case, it is also possible to determine whether or not to perform the above-described abnormality processing based on a change in the barrier detection switch 29a.

FIG. 13 shows an example of the processing, and shows processing when the lens barrier 3 is removed from the camera body 2 and a barrier removal signal is output from the barrier detection switch 29a. When the film cartridge 25 is not loaded, there is no problem with light shielding in the loading chamber 32, and no special processing is required. However, when the film cartridge 25 is loaded, the same processing as the abnormal processing described with reference to FIG. 11 is required depending on whether or not the barrier removal signal has been output.

FIG. 13 shows the processing when the barrier removal signal is output in a state where the film has been shot halfway to avoid complication, and the number of frames being shot is set in the frame number counter. If the barrier removal signal is output while the operation is being performed, the barrier removal flag is set. Then, even if the output of the barrier removal signal is stopped by attaching the lens barrier 3 again, the lid open detection switch 2
When 8a turns on again, the presence or absence of the barrier removal flag is checked.

When the barrier removal flag is confirmed,
The film rewinding process is automatically executed to prevent a frame in which external light fog is concerned from being continuously photographed. After rewinding, the film cartridge 25
Is switched to the used state, and the use of the display is prohibited. Note that the presence / absence of the barrier removal flag can be checked at the timing when the barrier detection switch 29a is turned on. As described with reference to FIG. 11, even when the frame number counter is “E” or “undecided”, the barrier removal signal is output during execution of the process performed with the light blocking cover 26 opened. If the barrier removal flag is set sometimes, the automatic rewinding process can be performed based on the presence or absence of the barrier removal flag.

As described above, by moving the lens barrier 3, the strobe light emitting unit 4 for turning on / off the main switch is popped up, and the slide side end is used as a grip unit in a photographing state.
The light shielding inside the loading chamber 32 is securely maintained, and the loading chamber lid 24 is
Is used as a means to prevent accidental release,
Furthermore, the camera can be made more compact by being versatilely used as a driving means of a lid opening / closing mechanism for opening the light shielding lid 26 by sliding in the closing direction.

In response to the above function of the lens barrier 3, the main switch 4a, the lid open detection switch 28a,
By providing the barrier detection switch 29a and the cartridge detection switch 34a and electrically monitoring the on / off state of these switches, not only the mode can be easily switched but also mistakes due to erroneous operations can be accurately identified. It becomes possible to obtain a convenient camera.

Although the present invention has been described with reference to the illustrated embodiments, various modifications and changes may be made in practicing the present invention. For example, turning on the main switch in conjunction with the pop-up of the strobe light emitting unit, setting the shooting mode, and shifting to the auxiliary mode by pop-down of the strobe light emitting unit is not limited to a camera using a IX240 type film cartridge, 1
It is equally applicable to cameras using 35 film cartridges. Further, the shape of the lens barrier is not necessarily limited to a rectangular parallelepiped box-shaped one. For example, when a horizontal slide type lens barrier is used, the lens barrier may be curved to the front or the back as long as the shape does not hinder the sliding operation. And a box shape with a curved surface.

In the illustrated embodiment, when the lens barrier is moved to a certain open position, the strobe light emitting unit pops up to turn on the main switch, and in response to this, the lens barrel is photographed from the retracted position. The lens barrier cannot be closed unless the strobe light emitting unit and lens barrel are returned to the stowed position because the camera is set to the shooting mode when the camera is extended to the position.
In the case where the lens barrel is fixed, and in the case where the strobe light emitting unit is fixed or provided at a position irrelevant to the movement area of the lens barrier, the main switch is turned on / off by opening and closing the lens barrier. Shooting mode /
The switching of the auxiliary mode may be performed.

[0095]

As described above, according to the present invention, the shooting mode is set when the strobe light-emitting portion pops up due to the movement of the lens barrier, and the shooting mode is changed from the shooting mode to the auxiliary mode when the strobe light is moved to the original unused position. And the type of the setting item assigned to the operation input unit is changed at the same time. Therefore, it is possible to easily identify whether the operation input unit is in the photographing mode or the auxiliary mode, and furthermore, Since the setting items are switched between the photographing mode and the auxiliary mode in accordance with the position of the strobe light emitting section, the operability is good, and the configuration of the input operation section can be simplified.

When the strobe light-emitting unit is left in a pop-up state, the mode automatically shifts to the off mode after a certain period of time to avoid power consumption. Since return is performed by turning on the main switch again by operating the strobe light emitting unit, complicated operation for mode switching is not required.

Further, when the lens barrier is formed in a box shape and provided with a function of more reliably shielding the loading chamber of the film cartridge, the movement of the lens barrier is monitored to determine whether or not the light shielding function is reliably maintained. Since the initial drive and the rewind drive of the film feed motor are performed after the check, it is possible to prevent an error such that the photographing is continued without noticing the external light fog. Also, when a retractable lens barrel is used and the main switch is automatically turned to the shooting position when the main switch is turned on, the main switch is turned on / off when the lens barrier is moved to a position where shooting is not possible. Regardless, since the motor for driving the lens barrel is not driven, not only can power consumption be avoided, but also various setting operations can be performed from the operation input unit in the auxiliary mode, or the film cartridge can be replaced by removing the lens barrier. When performing the operation, the lens barrel does not move unnecessarily.

[Brief description of the drawings]

FIG. 1 is a front perspective view when a camera using the present invention is used.

FIG. 2 is a perspective view when the camera shown in FIG. 1 is not used.

FIG. 3 is a rear perspective view when the camera shown in FIG. 1 is used.

FIG. 4 is a rear perspective view when the lens barrier is further slid from a shooting position.

FIG. 5 is a rear perspective view with a lens barrier removed.

FIG. 6 is a cross-sectional view of a main part in a state where a lens barrier is opened to a photographing position.

FIG. 7 is a functional block diagram schematically showing an electrical configuration of a camera using the present invention.

FIG. 8 is a flowchart showing a mode switching process of the camera using the present invention.

FIG. 9 is a flowchart illustrating processing when a main switch is turned on.

FIG. 10 is a flowchart illustrating processing when a main switch is turned off.

FIG. 11 is a flowchart showing a process when a lid opening detection switch for detecting opening of the light shielding lid of the film cartridge is turned on.

FIG. 12 is a flowchart illustrating a process when a lid open detection switch is turned off.

FIG. 13 is a flowchart illustrating processing when a lens barrier is removed.

[Explanation of symbols]

 2 Camera Body 3 Lens Barrier 4 Strobe Light Unit 5 Lens Barrel 6 Shutter Button 12 Operation Input Unit 15 Battery Chamber 17, 18 Lock Claw 20 Lock Plate 24 Loading Lid 25 Film Cartridge 28 Lid Open / Close Lever 4a Main Switch 22a Release Switch 28a Lid Open detection switch 29a Barrier detection switch 34a Cartridge detection switch 40 Feed motor 45 CPU

Claims (8)

[Claims] 1. A lens barrier for opening and closing the front surface of a photographing lens, wherein a strobe light emitting unit is popped up to a use position by opening the lens barrier, and the lens barrier is closed by displacing the strobe light emitting unit to a non-use position. And a main switch that turns on a main switch that sets a camera to a shooting mode in which a shooting operation can be performed in conjunction with a pop-up of the strobe light emitting unit. The shooting mode is shifted to the auxiliary mode in response to turning off of the camera, and another setting function different from the shooting mode setting function is assigned to the operation input unit having the shooting mode setting function in the shooting mode, and the shutter is released. A photographic camera, wherein a release operation is invalidated. 2. The method according to claim 1, wherein the main switch keeps on or off continuously for a certain period of time, and shifts to an off mode when an operation signal is not obtained from the operation input unit at least in any of the modes. The shutter release operation and the operation input from the operation input unit are invalidated, the display means for displaying the information set by the operation input unit is deactivated, and the main switch is turned on in the off mode. 2. The photographic camera according to claim 1, wherein the mode shifts to a shooting mode in response. 3. A lid opening / closing mechanism for opening / closing a light-shielding lid for opening / closing a film entrance / exit incorporated in a film cartridge, and a lid-opening detection switch for detecting that the light-shielding lid is opened. 3. The photographic camera according to claim 2, wherein the mode is shifted to a photographing mode in response to a detection signal from a lid open detection switch. 4. The lens barrier is movable from a photographing position in which a front surface of a photographing lens is opened and a film cover of a film cartridge is light-tightly covered, to a load position allowing opening and closing of the film cover. By moving from the loading position to the photographing position, a lid opening / closing mechanism for opening / closing a light-shielding lid for opening / closing a film entrance / exit incorporated in the film cartridge is operated to open the light-shielding lid, and the camera further comprises a film. A cartridge detection switch for detecting the presence or absence of a cartridge; a barrier detection switch for detecting that the lens barrier has moved to a loading position and outputting a barrier removal signal; and a lid for detecting that the light-shielding lid is opened. An opening detection switch, the mounting of the lens barrier is detected by the barrier detection switch, and the cartridge is 2. An initial drive of a film feeding motor is started in response to receiving a detection signal from the cover opening switch in a state where the loading of the film cartridge is detected by the detection switch.
Or the photographic camera according to 2. 5. A film loading signal and a light shielding cover opening signal are respectively obtained from the cartridge detecting switch and the cover opening detecting switch, and the film feeding motor is driven to send out the film from the film cartridge. 5. The photographic camera according to claim 4, wherein the film is rewound into the film cartridge when an opening signal of the light-shielding lid is obtained again from the lid opening detection switch before the film is rewound into the cartridge. 6. The lens barrier is movable from a photographing position in which the front surface of the photographing lens is opened and a film cover of the film cartridge is light-tightly covered to a load position allowing opening and closing of the film cover. A barrier detection switch that detects that the lens barrier has moved to the loading position and outputs a barrier removal signal; and a lens barrel that is driven in response to on / off of the main switch and has a built-in photographic lens. A lens barrel drive motor is provided to move between a shooting position protruding from the camera and a retracted position accommodated in the camera body. When the barrier removal signal is output, the lens barrel is driven regardless of whether the main switch is on or off. 2. The motor according to claim 1, wherein driving of the motor is prohibited.
Or the photographic camera according to 2. 7. In response to the barrier removal signal being output while the lens barrel is moving to the photographing position, the lens barrel drive motor is driven to return the lens barrel to the retracted position.
7. The photographic camera according to claim 6, wherein the drive of the lens barrel drive motor is prohibited while the barrier removal signal is being output. 8. A photographing mode is switched to an auxiliary mode in response to turning off a main switch that sets a camera to a photographing mode in which photographing operation can be performed by being turned on, and a photographing mode setting function under the photographing mode A photo camera, wherein another setting function different from the setting function of the shooting mode is assigned to the operation input unit having the function, and the shutter release operation is invalidated.