JPH11109495A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give useful information to a photographer and to facilitate the handling of a camera by displaying film information at the time of performing a prescribed operation for a film and displaying a date when the aforesaid operation is finished. SOLUTION: As for a camera provided with a card which is freely attached/ detached to/from a main body and which controls and also displays the main body, when a release switch is in a half depressed state (step S11), the sensitivity, etc. of a film is displayed on the card (step S12), then, when the release switch is fully depressed (step S13), the film is exposed (step S14), the date is displayed on the card (step S15) and thereafter, the film is fed by one frame (step S16).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having a card which can be attached to and detached from a main body and which controls the main body and performs display.

[0002]

2. Description of the Related Art As a conventional camera, Japanese Unexamined Patent Publication No.
No. 330 is known. The camera includes a camera body having a photographing function, and a lens cover detachably attached to the camera body. The lens cover has a remote control device for performing various shooting operations during shooting. Is incorporated. In this camera, the remote control device is incorporated in a lens cover that can be attached to and detached from the camera body, thereby omitting the installation of a dedicated storage section for the remote control device in the camera body and reducing the size of the camera as a whole. Is attached to the camera body to improve portability.

[0003]

The above-mentioned conventional camera lens cover not only can be used as a remote control device but also has a display section for displaying various kinds of information. The content is limited and fixed. Therefore, the photographer cannot obtain necessary or useful information in each scene of the camera operation, and it is not easy to handle the camera.

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a camera excellent in handleability.

[0005]

In order to achieve such an object, a camera according to the present invention is a camera having a card which is detachable from a main body and controls and displays the main body. 1) film information display instructing means for instructing display of film information at the time of a predetermined operation relating to the film of the loaded film cartridge, and (2) date display instruction for instructing a date display after completion of the predetermined operation. Means, and (3) card display means provided on the card for displaying film information in accordance with an instruction from the film information display instructing means and performing a date display in accordance with an instruction from the date display instructing means. . According to this camera, at the time of a predetermined operation regarding the film of the loaded film cartridge,
The film information is displayed on the card side in accordance with the instruction from the film information display instructing means, and after the predetermined operation is completed, the date is displayed in accordance with the instruction from the date display instructing means.

Further, in the camera according to the present invention, the predetermined operation is a shutter release operation relating to exposure of the film, and the film information is one or both of the sensitivity and the type of the film. In this case, at the time of the shutter release operation, the sensitivity and type of the film, which are useful information for the photographer, are displayed on the card side, and a date is displayed when the film is fed after the release.

In the camera according to the present invention, the predetermined operation is to open the cartridge cover of the storage chamber for storing the film cartridge after the film is rewound and fed, and the film information is the number of unphotographed frames of the film. It is characterized by the following. In this case, when the cartridge lid is opened after rewinding the film, the number of unphotographed frames of the film, which is useful information for the photographer, is displayed on the card side, and when the cartridge lid is closed, a date is displayed.

Further, the camera according to the present invention is characterized in that the camera further comprises a main body display means provided on the main body and displaying film information in accordance with an instruction from the film information display instruction means. In this case, film information that is useful information for the photographer is also displayed on the main body side.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A camera according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In the present embodiment, a camera that performs photographing using a photographic film having a magnetic recording area will be described.
The present invention may be applied to a camera that shoots using a film containing a patrone corresponding to the X code. In each drawing, the same reference numerals are given to the same elements, and the description is omitted. Also, the dimensional ratios in the drawings do not always match those described.

FIGS. 1 and 2 are perspective views of a camera according to the present embodiment. 1, the camera 1 includes a main body 10 and a card 60. The main body 10 has a storage chamber 54 (see FIG. 4) for storing the film cartridge 200, has an original photographing function of the camera, and has a substantially rectangular shape. A grip portion 11 is formed at an end on the left side from the front surface 12 of the main body 10. Grip part 1
Reference numeral 1 is for the photographer to hold the camera 1 by holding it with the right hand during normal photographing (photographing without remote control) and has a semicircular cross section. Further, the grip portion 11 has raised surfaces 11a and 11b which are raised almost vertically from the front surface 12 and the back surface 13 of the main body 10, and is formed to have a larger depth dimension than the other main body 10. This grip 1
By forming 1, the fingertip of the right hand can be hung on the protruding surface 11a protruding from the front surface 12 at the time of photographing or the like, and the camera 1 can be stably held.

As shown in FIG. 1, a feeding port 14 is provided at substantially the center of the front surface 12 of the main body 10. The lens barrel 15 is extended and retracted through the exit 14. Also, on the upper part of the front surface 12 of the main body 10, a flash window 16 and an AF
(Automatic Focusing) Emitter window 1
7, a self-timer light emission window 18, an object lens 19 of a finder, and an AF light reception window 20 are sequentially provided. A luminous body such as a xenon tube is installed inside the strobe window 16,
The luminous body emits light when photographing in a flash mode or the like. A light emitter such as an LED and a light projecting lens are installed inside the AF light projecting window 17, and a light receiver such as a photodiode and a light receiving lens are installed inside the AF light receiving window 20. At the time of photographing, light is projected through the AF light projecting window 17, and the light is reflected by the subject and received through the AF light receiving window 20. The distance to the subject is measured based on the light reception detection signal. A light-emitting body such as an LED is provided inside the self-timer light-emitting window 18, and the light-emitting body blinks so that the camera 1 can recognize that the camera 1 is in a self-mode (self-timer shooting mode). I have.

A remote control light receiving window 21 and a photometric window 22 are provided below the AF light receiving window 20 on the front surface 12. A light receiving body such as a photodiode is installed inside the remote control light receiving window 21, and infrared light transmitted from the card 60 is received by the light receiving body and converted into an electric signal. A photoelectric conversion element made of CdS or the like is provided inside the photometric window 22, and the brightness of the subject is measured by the output of the conversion element. Based on this measured value, the exposure mechanism (aperture, shutter) is automatically controlled and operated, so-called automatic exposure (A
E: Automatic Exposure) is performed.

A pin 23 projects from the right end of the front surface 12. The pin 23 is a protrusion protruding forward of the front surface 12, and has a large head 23a and a mushroom shape. The pins 23 are connected to the main body 10 of the card 60.
Used for mounting to Also, the upper surface 24 of the main body 10
A print setting changeover switch 25 is provided substantially at the center of the printer. The changeover switch 25 is a switch for arbitrarily setting three print types of a standard type, a high-vision type, and a panorama type.

On the left side of the upper surface 24 of the main body 10, a main switch 26 and a release switch 27 are provided.
The main switch 26 is a switch for activating and deactivating the camera 1. This main switch 2
When the button 6 is pressed, the main body 10 changes from a photographing impossible state to a photographable state, and from the photographable state to a photographing impossible state. The release switch 27 is a switch to be pressed for photographing, but is a two-stage switch. That is, by setting the release switch 27 to a half-pressed state, calculations related to photometry, distance measurement, and exposure are performed,
Exposure is performed by fully pressing. On the left side of the upper surface 24 of the main body 10, an LCD 28 is provided. The LCD 28 displays the number of shot frames or the number of remaining shot frames, the remaining battery power, the presence or absence of a cartridge, and the like.

Insertion holes 29 and 30 are provided in the raised surface 11a which is raised at the left end of the front surface 12. Insertion holes 29, 3
Numeral 0 is for holding the card 60 when the card 60 is attached, and also functions as positioning means for the card 60. The insertion holes 29 and 30 are provided at a predetermined distance in the vertical direction.

Further, an insertion hole 31 is provided in the raised surface 11a of the main body 10, and a detachment detection switch 32 is provided behind the insertion hole 31. When the card 60 is attached to the main body 10, the protrusion 61 of the card 60 is inserted into the insertion hole 31.
When the protrusion 61 is inserted, the attachment / detachment detection switch 32 is switched, and the attachment of the card 60 is detected. On the other hand, when the card 60 is removed from the main body 10, the protrusion 61 of the card 60 is pulled out from the insertion hole 31, and the removal of the card 60 switches the attachment / detachment detection switch 32, thereby detecting the removal of the card 60.

In FIG. 1, the card 60 functions as a lens cover for covering the taking lens of the lens barrel 15, functions as an operation panel of the camera 1, and also functions as a remote control unit of the main body 10. This card 6
Numeral 0 is detachable from the front surface 12 and the back surface 13 of the main body 10. The card 60 is provided with terminals 63, 64 protruding from one side surface 62, and the terminals 63, 64 are inserted into the insertion holes 29, 30 of the main body 10, respectively. Movement is regulated. The base ends of the terminals 63 and 64 are inserted into the insertion holes 29 and 3
The terminals 63 and 64 serve as electrodes, and are configured to receive power when attached to the back surface 13.

On the other side 65 of the card 60,
A push button 66 is provided. The push button 66 is used when removing the card 60 from the main body 10. A pin insertion hole 67 is provided on the surface of the card 60 near the push button 66. The pin insertion hole 67 regulates the movement of the card 60 by inserting the pin 51 (see FIG. 2) of the main body 10 when the card 60 is attached to the back surface 13. Pin insertion hole 67
Is provided with a hooking member 68. The locking member 68 is for preventing the pin 51 inserted into the pin insertion hole 67 from coming off, and the head 23a of the pin 23
A V-shaped hooking portion 68a for hooking is formed.
The locking member 68 is mechanically coupled to the push button 66 and is urged toward the push button 66 by a spring or the like. For this reason, during normal times (push button 66
Is not pressed), the hook 68a is inserted into the pin insertion hole 6
7, and when the push button 66 is pressed, the engaging portion 68 a moves from the inside of the pin insertion hole 67 to the inside of the card.

At the top of the card 60, a light transmitting window 69 is provided. The light transmitting window 69 is formed to penetrate the front and back of the card 60. When the card 60 is mounted on the back surface 13 of the main body 10, the light transmitting window 69 remains attached to the card 60.
Through the finder (see FIG. 2).

As shown in FIG. 2, an eyepiece 41 of a finder and a distance measurement completion display window 42 are provided in an upper portion of the rear surface 13 of the main body 10. A luminous body such as an LED is installed inside the distance measurement completion display window 42, and the release switch 2
When the button 7 is half-pressed, the light-emitting body turns on or blinks, and it can be confirmed that AF adjustment has been performed on the subject. A battery cover 43 is provided on the upper side of the main body 10. By opening and closing the battery cover 43, the battery 104 is accommodated and taken out.

On the back surface 13 side of the grip portion 11 of the main body 10,
A raised surface 11b is formed. The raised surface 11b is substantially the same as the above-mentioned raised surface 11a,
Is raised by the thickness of. The raised surface 11b is provided with insertion holes 44 and 45. Insertion holes 44, 45
Is for holding the card 60 when the card 60 is attached, and also functions as positioning means for the card 60. The insertion holes 44 and 45 are provided at a predetermined distance in the vertical direction, and a terminal 44
a, 45a (see FIG. 6). A predetermined voltage is applied between these terminals 44a and 45a,
Power can be supplied to the card 60 attached to the main body 10.

Further, an insertion hole 46 is provided in the raised surface 11b of the main body 10, and a detachment detection switch 47 is provided behind the insertion hole 46. When the card 60 is attached to the main body 10, the protrusion 61 of the card 60 is inserted into the insertion hole 46.
When the protrusion 61 is inserted, the attachment / detachment detection switch 47 is switched, and the attachment of the card 60 is detected. On the other hand, when the card 60 is removed from the main body 10, the protrusion 61 of the card 60 is pulled out from the insertion hole 46, and the removal of the card 60 is detected by the removal, and the removal of the card 60 is detected.

The transmitting window 4 is provided on the raised surface 11b of the main body 10.
8. A receiving window 49 is provided. A light emitter 110a such as an LED (see FIG. 6) is installed inside the transmission window 48, and a light receiver 110b (see FIG. 6) such as a phototransistor is installed inside the reception window 49. These light emitters 110a Optical communication with the card 60 is performed by the light receiving body 110b.

As shown in FIG. 2, a zoom switch 50 is provided on the back side of the grip 11. By operating the zoom switch 50, the lens barrel 15 is extended and retracted. Further, a pin 51 is protruded from the left end of the back surface 13 of the main body 10. Pin 51 is
The protrusion protrudes rearward of the back surface 13, and has a mushroom shape with a large head portion 51 a, similarly to the above-described pin 23. This pin 51 is connected to the main body 10 of the card 60.
Used for mounting to

As shown in FIG.
An LCD 71 is provided at substantially the center of the LCD. LCD
Reference numeral 71 denotes a display unit that operates according to the output signal of the CPU 131 and displays information such as time. Around the LCD 71, a date switch 72, an ST (Select Title) switch 73, a PQ (Print Quantity) switch 74, a mode switch 75, a clear switch 76, and a remote switch 77 are sequentially arranged clockwise from an upper right position of the LCD 71. Have been. A cursor switch 80 is provided at the lower left of the back surface 70 of the card 60. The cursor switch 80 includes four switches, an up switch 81, a down switch 82, a right switch 83, and a left switch 84.

At the right end of the back surface 70 of the card 60, a pin insertion hole 78 is provided. The pin insertion hole 78 restricts the movement of the card 60 by inserting the pin 23 of the main body 10 when the card 60 is attached to the front surface 12. Inside the pin insertion hole 78, the above-described locking member 68 is provided.
Are arranged. The hooking member 68 has a V-shaped hooking portion 68b for hooking the head 23a of the pin 23. Like the hooking portion 68a, the hooking portion 68b is located inside the pin insertion hole 78 during normal times (when the push button 66 is not pressed), and is located when the push button 66 is pressed. Move from inside 78 to inside the card.

FIG. 3 is an explanatory view of the end of the card 60.
3, a transmission window 91 and a reception window 92 are provided on the side surface 62 of the card 60 in addition to the terminal 63 described above. The transmission window 91 is located on the back 1 of the main body 10.
3, it is installed at a position facing the receiving window 49 of the main body 10. The receiving window 92 is provided at a position facing the transmitting window 48 of the main body 10 when the card 60 is attached to the back surface 13 of the main body 10.
A light emitting body 137 such as an LED is provided inside the transmission window 91.
a (see FIG. 7), a photoreceptor 137b such as a phototransistor (see FIG. 7) is disposed inside the reception window 92, and the light emitting body 137a and the photoreceptor 137b perform optical communication with the main body 10. Done.

On the side surface 62 of the card 60, a light emitting L
An ED 93 is provided. The light emitting LED 93 emits light toward the main body 10 when the card 60 is detached from the main body 10 and remotely operated. Power supply changeover switches 94 and 94 are provided on the side surface 62 of the card 60. When the card 60 is attached to the front surface 12 or the back surface 13 of the main body 10, the power supply changeover switch 94
It switches when it comes into contact with 1a or the raised surface 11b.

As shown in FIG. 4, the grip 11 of the main body 10
A cartridge lid 52 is provided at the bottom of the cartridge. The cartridge lid 52 is configured to be opened by operating an open / close switch 53 provided on a side portion of the main body 10.
By opening and closing the cartridge lid 52, the film cartridge 200 can be stored in the cartridge storage chamber 54 in the main body 10, and the film cartridge 200 can be taken out from the cartridge storage chamber 54. As shown in FIG. 4, an MR (Manual Rewind) switch 55 for performing forced winding is provided on the bottom surface of the main body 10. A cartridge presence / absence switch 56 for detecting the presence / absence of the film cartridge 200 in the room is provided in the cartridge storage room 54.

Next, regarding the LCD 71 of the card 60,
This will be described in more detail with reference to FIG. As shown in this figure, the LCD 71 has a three-stage display, and on the upper stage, marks are displayed in accordance with the shooting mode set by the mode switch 75 and the remote switch 77, and six marks are displayed. It is selectively turned on or off. From the top left, the lighting of the mark 71a indicates that the camera 1 is set to the red-eye reduction mode, and the lighting of the mark 71b is set to either the strobe forced emission mode or the strobe emission prohibited mode. The lighting of the mark 71c indicates that the distant view shooting mode is set, the lighting of the mark 71d indicates that the night view shooting mode is set, and the mark 71a
All of the lights off to 71d indicate that the camera is set to the auto mode (a mode in which the CPU 101 automatically sets the strobe light emission). The modes related to the strobe light emission are set by the mode switch 75. Lighting of the mark 71e indicates that the camera is set to the self mode, and lighting of the mark 71f indicates that the camera is set to the remote control mode. These are set by the remote switch 77. The dot display area 71g of the LCD 71,
Each 71h has a date display and an ST switch 7
3 is displayed regarding selection of a language and a title.

Next, the main body 1 of the camera 1 according to the present embodiment.
The CPU that controls 0 and related elements will be described. FIG. 6 is a block diagram illustrating a control mechanism of the main body 10.

The CPU 101 shown in FIG. 1 controls the entire main body 10. The CPU 101 has a RES
ET circuit 102, boost regulator 103, power supply circuit 1
05, remote control receiving circuit 106, switch group 107, strobe circuit 108, EEPROM 109, LCD 28,
Communication unit 110, LED group 111, AF circuit 112, lens barrel driving unit 113, film feeding unit 114, DD reading unit 11
5, a shutter driving unit 116, a photometry unit 117, and a magnetic data reading / writing unit 118 are connected. Also, CP
The U101 has a built-in ROM 101a in which a program for control / arithmetic processing is stored in advance, and a RAM 101b for storing various data in control / arithmetic processing. The CPU 101 receives instructions from the photographer via these elements, communicates with the card 60, and controls the main body 10.

The RESET circuit 102 detects that the main body 10 is powered on, generates a reset signal, and
The CPU 101 is instructed to initialize the main body 10 including the CPU 101.

The step-up regulator 103 has a battery 104 connected between its two input terminals.
Under the control of 101, the power supply voltage output from the battery 104 is boosted, and the boosted power supply voltage is
To each element in the

The power supply circuit 105 has two output terminals connected to the terminals 44a and 45a, respectively.
Its input terminal is connected to the output terminal of the boost regulator 103. The power supply circuit 105 includes the booster regulator 1
03, and the CPU 101
The power supply voltage is output to the terminals 44 a and 45 a under the control of the power supply unit, and power is supplied to the card 60 when the card 60 is attached to the back surface 13 of the main body 10.

The remote control receiving circuit 106 has a photoreceptor in the remote control light receiving window 21 and the card 6
The data received by remote control transmission from 0 is received, and the received data is sent to the CPU 101.

The switch group 107 collectively refers to various switches provided on the main body 10, receives an operation instruction from a photographer, and sends the content to the CPU 101.
The switch group 107 includes a main switch 2 for instructing switching of the main body 10 between a photographable state and a photographable state.
6, a print setting changeover switch 25 for selecting a print size, a release switch 27 for instructing a photographing operation, a detachment detection switch 32 for recognizing that the card 60 is attached to the front face 12 of the main body 10, and a back face 1 of the main body 10.
3, a switch 47 for recognizing that the card 60 is attached to the lens 3, a zoom switch 50 for instructing extension or retraction of the lens barrel 15, an open / close switch 53 for confirming the open / close state of the cartridge lid 52, and a halfway winding of the film. An MR switch 55 for instructing return and a cartridge presence / absence switch 56 for confirming whether or not a film cartridge is loaded are included.

The flash circuit 108 has a light-emitting body provided in the flash window 16 and, under the instruction of the CPU 101, causes the light-emitting body to emit light in accordance with a selected photographing mode (a mode relating to a flash light emission mode or the like).

The EEPROM 109 stores the number of unexposed shot frames of the loaded film cartridge, the state of the camera 1 at each time, various control parameters, and the like.

The communication section 110 has a light emitter 110 a in the transmission window 48, and has a light emitter 110 a in the reception window 49.
b, for transmitting and receiving data to and from the card 60 when the card 60 is attached to the back surface 13 of the main body 10. That is, when the main body 10 transmits data to the card 60,
10a outputs data to be transmitted as an optical signal under the instruction of the CPU 101. Conversely, when the main body 10 receives data from the card 60, the photoreceptor 110 b in the communication unit 110 receives an optical signal arriving from the card 60 and sends the data to the CPU 101.

The LED group 111 is a generic name for each LED provided in the main body 10 and emits light under the instruction of the CPU 101. The LED group 111 includes a self-timer light emission window 1 that indicates that the self-timer is operating.
8 and an LED in the distance measurement completion display window 42 that indicates that the distance measurement has been completed by the AF circuit 112.

The AF circuit 112 has a light-emitting body in the AF light projecting window 17 and a light-receiving body in the AF light-receiving window 20, and performs triangulation using these light-emitting bodies and light-receiving bodies. According to the principle, the distance to the subject is measured by an instruction from the CPU 101, and the measurement result is sent to the CPU 101.

The lens barrel driving unit 113 drives and controls the lens barrel 15 in accordance with instructions from the CPU 101 to perform zoom drive control and focus drive control.

The film feeding section 114 feeds the film of the loaded film cartridge in the forward or reverse direction in accordance with an instruction from the CPU 101.

Immediately after the film cartridge is loaded into the main body 10, the DD reading section 115 stores the film information (film type, film sensitivity, number of frames that can be shot) and the film use state (film number) recorded on the data disc of the film cartridge. Data related to unused / during shooting / shooting / developed) is read by an instruction from the CPU 101 and sent to the CPU 101. Here, the data disk is a disk-shaped one provided at the side end 201 of the film cartridge 200, and the film information is represented by a bar code displayed on the surface thereof. Indicates a state.

The shutter driver 116 controls opening and closing of a shutter (not shown) according to an instruction from the CPU 101.

The photometric unit 117 includes a photoelectric conversion element such as CdS in the photometric window 22, measures the illuminance of the subject using the photoelectric conversion element, and sends the result to the CPU 101.

The magnetic data read / write unit 118 includes a CPU
In accordance with the instruction by 101, information such as the date of shooting, the number of prints, the language, and the title is written or read into the magnetic recording area of the film of the loaded film cartridge.

Next, a CPU for controlling the card 60 of the camera 1 according to the present embodiment and related components will be described. FIG. 7 is a block diagram showing a control mechanism of the card 60.

The CPU 131 shown in FIG.
This controls the entire system. The CPU 131 has a RE
SET circuit 132, regulator 133, DRV circuit 1
35, switch group 136, communication section 137, LCD drive section 138, EEPROM 139, and remote control transmission circuit 1
40 are connected. The CPU 131 controls
ROM in which a program for arithmetic processing is stored in advance
131a and a RAM 131b for storing various data at the time of control / calculation are built in. The CPU 131
Through each of these elements, input the instructions from the photographer,
Communication with the main body 10 is performed to control the card 60.

The RESET circuit 132 detects that the main body 10 is powered on, generates a reset signal,
The CPU 131 is instructed to initialize the card 60 including 131.

The regulator 133 is provided between the two input terminals thereof with the power supply switch 94 and the battery 1 with built-in card.
34 are connected in series. In addition, the regulator 133
Terminals 63 and 64 for inputting a power supply voltage from the power supply circuit 105 of the main body 10 are connected to the two input terminals. The power supply switch 94 is turned on or off depending on whether the card 60 is attached to either the front surface 12 or the back surface 13 of the main body 10. That is, when the card 60 is not attached to either the front surface 12 or the rear surface 13 of the main body 10,
The power supply switch 94 is turned on, and the regulator 133 receives the power supply voltage output from the card built-in battery 134, stabilizes the power supply voltage, and supplies the power to each element in the card 60. When the card 60 is attached to the back surface 13 of the main body 10, the power supply changeover switch 94 is turned off, and the regulator 133 operates the power supply circuit 105 of the main body 10.
The input power supply voltage is input and stabilized and the card 60
To each element in the When the card 60 is attached to the front surface 12 of the main body 10, the power supply changeover switch 94 is turned off, and no power supply voltage is supplied from the power supply circuit 105 of the main body 10.

The input terminal of the DRV circuit 135 is connected to the terminal 63, and the potential of the terminal 63 is detected.
Based on the detected potential, the card 60 is
It is determined whether or not it is attached to the back surface 13 of the camera, and the identification result is sent to the CPU 131.

The switch group 136 collectively refers to various switches provided on the card 60, receives an operation instruction from the photographer, and sends the contents to the CPU 131. The switch group 136 includes a date switch 72 for instructing switching of a date mode (mode relating to a date display mode), an ST switch 73 for instructing start of selection of a title and a language, and a PQ for instructing start of print number setting and the like. A switch 74, a mode switch 75 for selecting a shooting mode, a clear switch 76 for instructing the setting of the number of prints or discarding the title selection, a remote control mode (a mode in which the card 60 is removed from the main body 10 and used as a remote control device) and a self mode ( Card 60 to main unit 1
0) or a remote switch 77 for instructing a photographing operation to the main body 10 and a cursor switch for setting the number of prints and selecting a title. 80 are included.

The communication section 137 has a light emitter 137 a in the transmission window 91 and a light receiver 137 in the reception window 92.
b, for transmitting and receiving data to and from the main body 10 when the card 60 is attached to the back surface 13 of the main body 10. That is, when the card 60 transmits data to the main body 10, the light emitter 13 in the communication unit 137
7a outputs data to be transmitted as an optical signal under the instruction of the CPU 131. Conversely, the card 60 is
When receiving data from 0, the photoreceptor 137b in the communication unit 137 receives the optical signal arriving from the main body 10 and sends the data to the CPU 131. That is, body 1
The light signal output from the light emitter 110a of the communication unit 110 of the card 60 is received by the light receiver 137b of the communication unit 137 of the card 60, and the light signal output from the light emitter 137a of the communication unit 137 of the card 60 is , Communication unit 1 of main body 10
The light is received by the ten photoreceptors 110b, whereby bidirectional communication is performed between the main body 10 and the card 60. Here, the communication unit 137 of the card 60 and the communication unit 1 of the main body 10 are used.
The data transmitted / received to / from the printer 10 includes data for controlling the card 60, data relating to a shooting mode, a language, a title, and the number of prints.

The LCD drive section 138 controls the display on the LCD 71 under the instruction of the CPU 131.

The EEPROM 139 stores a cartridge ID (hereinafter, referred to as CID), a photographing mode, a date mode, a language, a title, and the like input by the photographer.

The remote control transmission circuit 140
3 and remote control transmission of data to be transmitted to the main body 10 by the light emitting LED 93 under the control of the CPU 131. Here, data transmitted from the remote control transmission circuit 140 to the remote control reception circuit 106 of the main body 10 is, for example,
The data includes data for instructing the main body 10 to perform a shooting operation, data relating to a language, a title, and the number of prints.

Next, the operation of the camera 1 composed of the main body 10 and the card 60 described above according to the present invention will be described with reference to the flowcharts shown in FIGS. What is shown in these flowcharts is one example of a series of operations in the camera 1, and the present invention is not limited to this.

FIG. 8 shows an example of a series of operations related to the shutter release operation. At the start of the operation flow shown in this figure, the card 60 is attached to the back surface 13 of the main body 10, and the camera 1 is in a state capable of shooting. In this state, the photographer operates the switch group 1 of the card 60.
Various photographing conditions can be set by operating 36. At this time, usually, the LCD 71 of the card 60
Has a date display.

This photographable state is also a state in which the photographer is waiting for the release switch 26 of the main body 10 to be pressed. That is, in step S11, the CPU 101 determines whether or not the release switch 26 has been half-pressed. Unless the release switch 26 has been pressed, the process stays in this step, and the CPU 101 determines that the release switch 26 has been half-pressed. If recognized, step S
Proceed to 12.

When the release switch 26 is half-pressed,
Under the control of the CPU 101, distance measurement is performed by the AF circuit 112, photometry is performed by the photometry unit 117, and
Exposure calculations are performed to determine optimal exposure conditions.
Further, in step S12, the CPU 101 of the main body 10
Is transmitted to the CPU 131 of the card 60 via the communication unit 110 of the main body 10 and the communication unit 137 of the card 60.
It instructs to display the film information on the CD 71 and transmits data to be displayed. At this time, the LCD 71
The film information displayed on the DD reading unit 11 is stored when the film cartridge is stored in the storage chamber 54 of the main body 10.
5 is the film sensitivity and film type read, and is displayed in the dot display area 71g or 71h of the LCD 71.

Further, in step S13, the CPU 101 determines whether or not the release switch 26 has been fully pressed, and waits until the release switch 26 is fully pressed. CPU1 indicates that the release switch 26 has been fully pressed.
If recognized by 01, the process proceeds to step S14. In step S14, the shutter is opened by the shutter driving unit 116 under the control of the CPU 101, and a predetermined frame of the film is exposed.

In the following step S15, the CP
U101 is the communication unit 110 of the main body 10 and the card 60
The CPU 131 of the card 60 is instructed to display a date on the LCD 71 and the data to be displayed is transmitted through the communication unit 137 of. In displaying the date, the set date mode (any one of year / month / day / month / year / day / month / year / hour / minute, surface to be printed when printing, presence / absence of display), and body 10 CPU 10
1 is transmitted from the CPU 101 of the main body 10 to the CPU 131 of the card 60, and data on the date (year, month, day, hour, minute) acquired from the timer incorporated in the card 60.
It is displayed in the dot display area 71g or 71h of the CD 71. The operations in steps S14 and S15 may be performed in reverse order.

Thereafter, in step S16, the CPU 101
Under the control of, the film is fed one frame by the film feeding unit 114 and magnetic data is written in the magnetic recording area of the film by the magnetic data reading / writing unit 118.

That is, in a series of operations relating to the shutter release operation, when the release switch 27 is not pressed, the LCD 71 of the card 60 displays a date display, and when the release switch 27 is half-pressed, the LCD 60 of the card 60 is pressed. The LCD 71 displays film information (sensitivity and type of the film). When the release switch 27 is fully pressed and the film is fed after the film exposure, the LCD 71 of the card 60 displays a date. By doing so, at the time of the shutter release operation, the film information that is useful information for the photographer at that time is
D71 is displayed. After exposure, a normal date display is performed instead of the display of the film information.

FIG. 9 shows an example of a series of operations related to the film rewinding operation. At the start of the operation flow shown in this figure, the card 60 has been attached to the back surface 13 of the main body 10. In this state, the photographer can set various photographing conditions by operating the switch group 136 of the card 60.

This photographable state is also a state in which the apparatus stands by until the MR switch 55 of the main body 10 is pressed. That is, in step S21, the CPU 101 determines whether or not the MR switch 55 has been pressed. Unless the MR switch 55 has been pressed, the process remains in this step, and the CPU 101 recognizes that the MR switch 55 has been pressed. Then, the process proceeds to step S22.

In step S22, the film is rewound by the film feeding section 114 under the control of the CPU 101. Then, after the rewinding is completed, the use state of the loaded film cartridge is stopped at a predetermined position. Thereafter, in step S23, when the opening / closing switch 53 detects that the cartridge lid 52 of the main body 10 is opened and is recognized by the CPU 101, the process proceeds to step S24. In step S24, the CPU 101 of the main body 10
Is transmitted to the CPU 131 of the card 60 via the communication unit 110 of the main body 10 and the communication unit 137 of the card 60.
It instructs to display the film information on the CD 71 and transmits data to be displayed. At this time, the LCD 71
The film information displayed on the LCD 7 is the number of remaining unphotographed frames of the film rewound in step S22.
It is displayed in one dot display area 71g or 71h.

Then, in step S25, when the closing of the cartridge lid 52 of the main body 10 is detected by the open / close switch 53 and recognized by the CPU 101, the process proceeds to step S26. In step S26, the CP of the main body 10
U101 is the communication unit 110 of the main body 10 and the card 60
The CPU 131 of the card 60 is instructed to display a date on the LCD 71 and the data to be displayed is transmitted through the communication unit 137 of. When the date is displayed, data on the set date mode and date is transmitted from the CPU 101 of the main body 10 to the card 60.
Is transmitted to the CPU 131 and is displayed on the dot display area 71 g or 71 h of the LCD 71 of the card 60.

That is, in a series of operations relating to the film midway rewinding operation, when the cartridge lid 52 is opened after the film is rewound halfway, the LCD 71 of the card 60 displays the film information (the number of remaining frames not yet photographed). ) Is displayed, and when the cartridge lid 52 is closed, the LCD 71 of the card 60 performs a date display. In this way, when the film cartridge is taken out after rewinding halfway, the number of remaining unphotographed frames of the film, which is useful information for the photographer at that time, is displayed on the LCD.
When the cartridge lid 52 is closed and displayed at 71,
A normal date display is performed instead of the display of the film information.

In the series of operations shown in FIGS. 8 and 9, the film information display and the date display are displayed on the LCD 71 of the card 60. However, it is preferable that the display is also displayed on the LCD 28 of the main body 10. It is. However, the LC of the main body 10 of the camera 1 described above is used.
D28 can display only the number of remaining frames that have not been photographed among the film information. Therefore, in step S24 in the series of operations shown in FIG. 9, the number of remaining frames that have not been photographed is also displayed on the LCD 28 of the main body 10, and step S26 is performed.
Then, the display is turned off.

The predetermined operation relating to the film is as follows.
The invention is not limited to those described with reference to FIGS. 8 and 9, and may be, for example, automatic film feeding after loading a film cartridge, or one-frame rewind feeding at the time of previous frame rewriting. Is also good. In the former case, the film information to be displayed is, for example, film sensitivity, type, the number of shot frames, and the like. In the latter case, the film information to be displayed is, for example, the content of magnetic data to be rewritten.

In the camera 1, communication between the main body 10 and the cover 60 is not limited to optical communication as long as two-way communication is possible, but may be other methods such as a radio wave method. There may be.

[0075]

As described above, according to the present invention, when a predetermined operation (shutter release operation, opening of the cartridge cover after rewinding of the film in the middle of the film) of the loaded film cartridge is performed, Film information (sensitivity, type, remaining number of frames that have not been shot) is displayed according to the instruction from the information display instruction means, and after the above-described predetermined operation is completed, date display is performed according to the instruction from the date display instruction means. These indications are preferably made on the card, and more preferably on the main body.

That is, the sensitivity and type of the film are displayed during the shutter release operation, and the date is displayed when the film is fed after the release. When the cartridge lid is opened after rewinding the film, the number of unphotographed frames of the film is displayed, and when the cartridge lid is closed, a date is displayed. Therefore,
When the photographer operates the camera, information useful to the photographer is displayed at each scene of the operation, so that the camera can be easily handled.

[Brief description of the drawings]

FIG. 1 is a perspective view of a camera.

FIG. 2 is a perspective view of a camera.

FIG. 3 is an explanatory diagram of a card.

FIG. 4 is an explanatory diagram of a camera.

FIG. 5 is an explanatory diagram of a display on the LCD of the card.

FIG. 6 is a diagram showing an electrical configuration of a main body.

FIG. 7 is a diagram showing an electrical configuration of the card.

FIG. 8 is a flowchart showing the operation of the camera.

FIG. 9 is a flowchart showing the operation of the camera.

[Explanation of symbols]

 1 ... camera, 10 ... body, 60 ... card.

Claims (4)

[Claims] 1. A camera having a card which is detachable from a main body and controls and displays the main body, and instructs display of film information at a time of a predetermined operation regarding a film of a loaded film cartridge. Film information display instructing means, date display instructing means for instructing a date display after the predetermined operation is completed, and provided on the card, for displaying the film information in accordance with an instruction by the film information display instructing means, A card display unit for displaying a date in accordance with an instruction from the date display instruction unit. 2. The method according to claim 1, wherein the predetermined operation is a shutter release operation relating to exposure of the film, and the film information is at least one of sensitivity and type of the film. The described camera. 3. The method according to claim 2, wherein the predetermined operation is opening of a cartridge cover of a storage chamber for storing the film cartridge after rewinding and feeding the film, and the film information is a number of unphotographed frames of the film. The camera according to claim 1, wherein: 4. The camera according to claim 1, further comprising a main body display means provided on said main body and displaying said film information in accordance with an instruction from said film information display instruction means.