JP2001337380A - Camera and adjuster for camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera communicating with an adjuster by using a light emitting element and a light receiving element previously installed in the camera, and the adjuster for the camera. SOLUTION: This camera is equipped with the adjuster equipped with a communication means for communicating with the camera in a non-contact state and adjusting the camera, plural non-contact communication means for communicating with the adjuster, and a communication switching means for switching the plural non-contact communication means, and it communicates with the adjuster through the communication means required to perform communication from the adjuster for the camera by successively switching the plural non-contact communication means by the communication switching means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera and a camera adjuster, and more particularly, to a camera and a camera adjuster which perform communication between the camera and the camera adjuster which performs adjustment at the time of factory shipment of the camera. About the vessel.

[0002]

2. Description of the Related Art As a prior art of this kind, Japanese Patent Application No. 11-260422 filed by the same applicant as the present invention discloses a sensor for detecting the perforation of a film provided on a film rail surface on the back of a camera. CPU provided on the camera body using (photo reflector)
And a CPU provided on the back cover of the camera for non-contact communication.

As a conventional technique of this kind, Japanese Patent Application No. 12-18864 filed by the same applicant as the present invention discloses a technique for detecting perforation of a film provided on a film rail surface on the back of a camera. There is disclosed a technology in which a sensor (photo reflector) is used to perform non-contact communication between the adjuster and adjustment information at the time of shipment from a factory.

Further, as a conventional technique of this kind, Japanese Patent Application Laid-Open No. 7-191366 discloses a camera for handling an APS type film cartridge, and a sensor for detecting a bar code provided on the film cartridge. A technology has been disclosed in which a non-contact communication is performed with an external CPU using a photoreflector.

[0005]

However, in the techniques disclosed in Japanese Patent Application No. 11-260422 and Japanese Patent Application No. 12-18864 filed by the same applicant as the above-mentioned prior art as the prior art, any of them is disclosed. There is a problem of lack of versatility in that the method is limited to non-contact communication using a sensor for detecting film perforation provided on the film rail surface on the back of the camera.

Further, the technique disclosed in Japanese Patent Application Laid-Open No. 7-191366 as the above-described conventional technique is limited to a camera which handles a film having a barcode provided in a film cartridge. In addition, there is a problem of lack of versatility, and it is necessary to newly provide a communication component to a camera that handles a so-called 135 format film other than the APS type film.
This is a problem in that the cost of the entire camera is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and newly communicates with a camera by using a light emitting element and a light receiving element provided in the camera in advance to communicate with the adjuster. In addition, there is no need to equip the camera with parts, and communication can be performed in a non-contact manner. This eliminates problems due to poor contact, and has the advantage of shortening the adjustment time in the adjustment process and reducing the cost of the entire camera. In addition, an object of the present invention is to provide a camera and a camera adjuster which has an advantage of eliminating malfunction since an adjustment item can be limited by using a specific communication means from a plurality of communication means.

[0008]

According to the present invention, in order to solve the above-mentioned problems, (1) an adjuster for adjusting a camera, comprising a communication means for performing non-contact communication with a camera; A plurality of non-contact communication means for communicating with the communication means, and a communication switching means for switching the plurality of non-contact communication means, the communication switching means, by sequentially switching the plurality of non-contact communication means, A camera and a camera adjuster are provided in which communication with the adjuster is performed by communication means that has requested communication from the camera adjuster.

According to the present invention, in order to solve the above-mentioned problems, there is provided (2) reset means for outputting a reset signal when a power supply to the camera is turned on. The camera-to-camera adjuster according to (1), wherein the plurality of non-contact communication means are sequentially switched by the communication switching means, and communication with the adjuster is performed by the communication means for which there is a communication request. Is provided.

According to the present invention, in order to solve the above-mentioned problems, (3) a rewritable nonvolatile memory is provided, and a result of communication by the communication means is stored in the rewritable nonvolatile memory. Features (1)
Alternatively, a camera and a camera adjuster according to (2) are provided.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a camera 1 to which a first embodiment of a camera and a camera adjuster according to the present invention is applied.

FIG. 2 also shows a camera 1 to which a first embodiment of a camera and a camera adjuster according to the present invention is applied.
FIG.

FIG. 3 also shows a camera 1 to which a first embodiment of a camera and a camera adjuster according to the present invention is applied.
FIG. 3 is an enlarged view around the finder.

That is, reference numeral 1 denotes a camera (body),
Reference numeral 2 denotes a photographing lens, reference numeral 3 denotes a strobe light emission window, and reference numeral 4 denotes a shutter release button.

The shutter release button 4 is constituted by a two-stage switch, and is a button for instructing a photographing preparation operation when pressed halfway and for photographing when fully pressed.

In FIG. 1, reference numeral 5 denotes a window for projecting infrared light by an IRED for active distance measurement, and reference numeral 6 denotes a light receiving window for active distance measurement.

The light receiving window 6 for active distance measurement has a light receiving sensor constituted by a plurality of photodiodes, and is a window for receiving the infrared light reflected by the subject when the light emitted from the IRED is reflected by the subject. .

In FIG. 1, reference numeral 7 denotes a window for a photometric sensor for detecting the luminance of the object scene, and reference numeral 8 denotes a window.
Reference numeral 9 denotes a window for a self-LED for notifying a subject of the timing operation of a self-timer by LED light, reference numeral 9 denotes a window for a finder, and reference numeral 10 denotes a finder.

In FIG. 1, reference numeral 11 denotes a liquid crystal display window for displaying the number of frames of a film and a photographing mode, and reference numeral 12 denotes a button for setting a self-photographing mode and a remote control (remote control) photographing mode. Reference numeral 13 denotes a button for setting a flash photography mode.

In FIG. 2, reference numeral 14 denotes a display L for notifying a photographer of photographing by strobe light emission.
ED, reference numeral 15 denotes a display LED for the photographer to confirm the focus, and reference numeral 16 denotes an LED window for imprinting date data on the film in synchronization with the movement of the film while winding the film.

In FIG. 2, reference numeral 17 denotes a film winding spool, and reference numeral 18 denotes a photo reflector (WP) for detecting film perforation.
Reference numeral 19 denotes a lens barrel, and reference numeral 20 denotes a DX section for detecting information on the film cartridge.

In FIG. 2, reference numeral 21 denotes an open / close lever for releasing a lock for opening and closing the back cover 27, reference numeral 22 denotes a window for a sensor for receiving a remote control signal, and reference numeral 23 denotes a photographer. Is a face detection unit provided to detect that the user has looked into the viewfinder and to automatically perform a focusing operation or to automatically turn on the power of the camera 1.

In FIG. 2, reference numeral 27 denotes a back cover which opens and closes to load a film into the camera 1, reference numeral 28 denotes a window for confirming the presence or absence of a film cartridge with the back cover 27 closed. Reference numeral 29 denotes a pressure plate for maintaining the flatness of the film, and reference numeral 30 denotes a battery cover provided on the bottom surface of the camera 1.

In FIG. 3, reference numeral 24 denotes a light emitting element for face detection, reference numeral 25 denotes a light receiving element for face detection,
Reference numeral 26 denotes a rewinding fork that engages with a spool of a film cartridge to rewind the film.

FIG. 4 is a block diagram showing a schematic configuration of a camera control circuit to which the first embodiment of the camera and the camera adjuster according to the present invention is applied.

That is, in FIG. 4, reference numeral 51 denotes a control CPU for controlling the operation of the camera, and a one-chip microcomputer is used.

In the control CPU 51, an oscillation circuit for generating a clock, a ROM for storing a program for processing, a RAM for operation, an A / D (analog / digital) conversion circuit, a timer circuit, an interrupt Processing circuit, LC
A D (liquid crystal display) driver circuit, an input / output port, and the like are provided.

In FIG. 4, reference numeral 52 denotes a liquid crystal display panel for displaying the number of frames to be shot and a shooting mode in accordance with a control signal from the control CPU 51, reference numeral 53 denotes a finder LED for displaying a focus, and reference numeral 53. Reference numeral 54 denotes a finder LED for performing a flash emission notice.

In FIG. 4, reference numeral 55 denotes a flash charging / light emitting circuit having both a charging circuit for charging the main capacitor 56 for flash light emission and a light emitting circuit for emitting flash light by the Xe tube 57.

The strobe charging / light emitting circuit 55 charges and emits light in response to a control signal from the control CPU 51. The charging voltage of the main capacitor 56 is divided by a resistor (not shown). It is controlled by the control CPU 51 so as to be charged until the voltage is detected by the / D conversion and reaches a predetermined voltage.

In FIG. 4, reference numeral 58 denotes SP.
The D (silicon photodiode) 59 converts the luminance of the object field into a current, amplifies it by a photometric circuit, converts it into a voltage, and the control CPU 51 performs A / D conversion to detect the object field luminance. Circuit.

In FIG. 4, reference numeral 60 denotes a focusing signal driving film 61 and a film feeding motor 62 which are driven in reverse by a control signal from a control CPU 51 so as to adjust the focus. (Motor) driver circuit that performs automatic winding and rewinding.

The driver circuit 60 opens and closes a shutter (not shown) by controlling power supply to a shutter driving plunger 63.

In FIG. 4, reference numeral 64 denotes a 1R switch (SW) which is turned on when the shutter release button 4 is half-pressed. Instructions for distance measurement operation, distance measurement operation, focusing operation, light measurement operation, and light measurement operation).

In FIG. 4, reference numeral 65 denotes a 2R switch (SW) which is turned on when the shutter release button 4 is fully depressed. Operation, film feed).

In FIG. 4, reference numeral 66 denotes a self LED, that is, L which indicates to the subject that the self timer is operating.
After setting the self-timer shooting mode, the self-LED 66 starts the self-timer operation by operating the shutter release button 4, and notifies the subject of the time elapsed after the timer operation for 10 seconds after the operation. The LED is turned on, the LED blinks for two seconds thereafter, and controlled by the control CPU 51 so as to perform a shooting operation.

In FIG. 4, reference numeral 67 denotes a remote control demodulation circuit for detecting a remote control signal of infrared light.

That is, a remote control signal modulated and output by the transmitter (not shown) is received by a remote control sensor 68, detected and demodulated by the remote control demodulation circuit 67, and converted to a digital signal. , Control CP
Sent to U51.

In FIG. 4, reference numeral 69 denotes an AF circuit as an active distance measuring sensor.
IRE 70 is emitted and IRE is reflected back from the subject
D light to PSD (Position Sensitive Detector) 7
After converting the electric signal into an electric signal and detecting the electric signal in step 1, the distance to the subject is measured by a triangulation method, and the distance information is used as a control CPU.
Send to 51.

In FIG. 4, reference numeral 72 denotes a self-mode switch. Each time the self-photographing mode button 12 is operated, the photographing mode is switched in the order of a self-timer photographing mode, a remote control photographing mode, and a normal photographing mode.

In FIG. 4, reference numeral 73 denotes a flash mode switch.
Each time is operated, the flash shooting mode is switched in the order of red-eye reduction flash mode, forced flash mode, flash off mode, and auto flash mode.

In FIG. 4, reference numeral 74 denotes a photo-reflector (WPR) for detecting a perforation 78 provided on a film 77, which comprises a light-emitting diode 75 and a photo-transistor 76.

The photoredirector (WPR) 74 can detect the movement amount of the film 77 by the control CPU 51 by detecting the perforation 78 at the time of feeding the film.

In FIG. 4, reference numeral 79 denotes an imprinting LED driver, which winds up the film 77 after photographing based on a control signal from the CPU 51, and simultaneously detects a signal of the WPR 74 in a vertical line. The characters and numbers are printed on the film 77 by blinking the plurality of printing LEDs 80 arranged in a row.

In FIG. 4, reference numeral 81 denotes a face detection circuit as a face detection sensor, which detects that the photographer has looked into the finder 10 and turns on the power of the camera 1 or performs photographing. A light-emitting diode 82 and a phototransistor 83 are provided as a detection photoreflector for performing a preparatory operation.

In FIG. 4, reference numeral 84 indicates a lever 21 operated to open and close the back cover 27.
A switch (BKSW) that turns on and off, and turns on when the back cover 27 is opened and turns off when the back cover 27 is closed.

In FIG. 4, reference numeral 85 denotes a rewritable nonvolatile memory (EEPROM), which is adjusted at the time of shipment from the factory to correction information of mechanical members such as AF, AE and lens barrel, and electric components such as sensors. Adjustment values such as, and shooting information such as the number of frames are stored in advance.

In FIG. 4, reference numeral 86 denotes an oscillator, reference numeral 87 denotes a battery, and reference numeral 88 denotes a stabilized power supply circuit having a step-up / down function so as to supply a stable voltage even when the battery voltage changes. Reference numeral 89 denotes a reset circuit which outputs a reset signal to the control CPU 51 when the battery voltage is detected and becomes lower than a predetermined voltage or when the battery is turned on.

FIGS. 5 to 7 are flowcharts for explaining the processing procedure of the control CPU 51 in the control circuit of the camera to which the first embodiment of the camera and the camera adjuster according to the present invention is applied.

After the battery is loaded into the camera 1 and the reset signal is output, the control CPU 51 executes the programs written in the internal ROM in order from step S1.

First, in FIG. 5, in step S1,
After turning on the power to the camera 1, the control CPU 51
Initial settings such as AM and port are performed.

Next, in step S2, the control CPU 5
1 stores a signal from an AF circuit 69 as an active distance measurement (AF) sensor in an internal memory (RAM).

Next, in step S3, the control CPU 5
1 stores the remote control signal detected by the remote control demodulation circuit 67 after being received by the remote control sensor 68 in an internal memory (RAM).

Next, in step S4, the control CPU 5
Reference numeral 1 denotes an SPD 59 serving as a photometric element, which converts the luminance of the field into a current, amplifies the current in a photometric circuit 58, and stores the converted signal into a voltage in an internal memory (RAM).

Next, in step S5, the control CPU 5
1 stores a signal of the WPR 74 for detecting a perforation 78 provided on the film 77 in an internal memory (RAM).

Next, in step S6, the control CPU 5
1 stores a signal from a face detection circuit 81 as a face detection sensor in an internal memory (RAM).

The control CPU 51 can perform sampling in a pseudo manner simultaneously by a plurality of receiving means by repeatedly performing the processing of the above steps S2 to S6, for example, every several μs.

Next, in step S7, the control CPU 5
1 repeats the processing from step S2 to step S6 for a predetermined time.

Next, in step S8, the control CPU 5
1 analyzes the sampled information to determine whether it is a communication signal.

Next, in step S9, the control CPU 5
1 judges whether a communication signal is included in any of the above received information, and if there is a communication signal, proceeds to step S10 in FIG. 6;
Move to 21.

Next, in FIG. 6, in step S10, the control CPU 51 sorts the processing as shown in Table 1 depending on which sensor has received the communication signal.

[0063]

[Table 1]

First, if the information is included in the information received by the active AF sensor (71), the communication is from the photometry adjuster. Therefore, the control CPU 51 proceeds to step S11 to execute the photometry adjustment processing program. The photometric adjustment is performed according to the instructions of the adjuster.

Thereafter, the control CPU 51 proceeds to step S
The process proceeds to step S20, and the adjustment result is stored in the EEPROM 85.

On the other hand, if the communication is not the active AF sensor (71) in step S10, the control CPU 51
Shifts to step S12, and determines whether or not the signal is received by the remote control sensor 68.

If the communication has been received by the remote control sensor 58, the control CPU 51 determines that FC adjustment has been performed,
The process proceeds to step S13, where the FC adjustment processing program is executed, and the FC adjustment is performed according to the instruction from the adjuster.

Thereafter, the control CPU 51 proceeds to step S
The process proceeds to step S20, and the adjustment result is stored in the EEPROM 85.

Next, in step S14, the control CPU
If the communication is received by the photometric sensor (59), the AF adjustment is performed in step S15.

Next, in step S16, the control CPU
If 51 is the reception of the communication by WPR74,
In step S17, flash adjustment is performed.

Next, in step S18, the control CPU
51 is a phototransistor 83 as a face detection sensor
If the communication is received by the
Execute F adjustment.

Next, in FIG. 7, in step S21, the control CPU 51 detects whether the BKSW 84 is on or off, and detects whether the back cover 27 is open or closed.

If the open / closed state of the back cover 27 is detected from the open state to the closed state, the control CPU 51 executes the autoloading in step S22, sets the first frame of the film, and enables photographing. I do.

Next, in step S23, the control CPU
51, after receiving a release signal as a remote control signal, waits for shooting after a shooting preparation operation.

Next, in step S24, the control CPU
If the 1RSW 64 is on, the process moves to step S25, and if the 1RSW 64 is off, the process moves to step S21, and the subsequent processes are repeated.

Next, in step S25, the control CPU
In step S26, the distance 51 to the subject is calculated.

Next, in step S27, the control CPU
Reference numeral 51 drives the focusing lens 2 to a focusing position.

Next, in step S28, the control CPU
In step S29, a photometric operation is performed, and the luminance of the object scene is obtained, and the shutter speed, the aperture value, the necessity of strobe light emission, and the amount of strobe light emission are obtained.

Next, in step S30, the control CPU
51 is a step S31 if the 2RSW 65 is on.
Or if the release request is made by a remote control signal, the process directly proceeds to step S31; otherwise, the process returns to step S21 to repeat the subsequent processes.

Next, in step S31, the control CPU
An exposure unit 51 performs an exposure operation based on the result of the exposure calculation, and then feeds the photographed film by one frame.

Next, in step S32, the control CPU
51, when the strobe light emission is performed at the time of exposure in the above step S31, in preparation for the next strobe light emission,
After charging the main capacitor 56, step S
Returning to step 21, the subsequent processing is repeated.

FIG. 8 is an external view of a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied.

That is, in FIG.
Is a main body of the adjuster. In this figure, a photometric adjuster will be described as an example. There are several types of adjusters for a camera, and a photometric adjuster for adjusting a photometric value and performing an aperture test of a shutter. Other examples include an AF adjuster that adjusts distance measurement information, an FC adjuster that adjusts the ∞ position of a focusing lens, and a strobe light amount adjuster that adjusts a strobe light emission amount.

This adjuster body 101 is used for photometric adjustment.
Also serves as a luminance box.

In FIG. 8, reference numeral 102 denotes a display area for displaying the information of the adjuster, the information before the adjustment of the camera, and the information after the adjustment, and whether the result after the adjustment is within a predetermined range. The determination is made depending on whether the result is acceptable and the pass / fail result is displayed.

In FIG. 8, reference numeral 103 denotes a luminance window. The luminance window 103 has a light-emitting surface that emits light by changing luminance, and also serves as a window for detecting the sensitivity of the photometric sensor.

In FIG. 8, reference numeral 104 denotes a light emitting element for communication provided at a position corresponding to the light receiving sensor 6, and reference numeral 105 denotes a light emitting element for communication provided at a position corresponding to the light emitting element 5. The light receiving element 106 is a communication light emitting element provided at a position corresponding to the remote control light receiving sensor 22.

In FIG. 8, reference numeral 107 denotes a detection box for storing a sensor for detecting the adjuster, and reference numeral 108 denotes a detection box.
Is a start button for starting the adjustment. When the camera 1 is placed on the adjustment table and the preparation is completed, the start button 108 is pressed to start the adjustment.

In FIG. 8, reference numeral 119 denotes a power switch of the adjuster.

FIG. 9 is an external view of a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied, wherein the detection box 107 is viewed from the side opposite to FIG. FIG.

That is, in FIG.
Reference numeral 110 denotes an optical sensor for detecting the shutter opening of the camera 1, and reference numeral 111 denotes a communication unit provided at a position corresponding to the photoreflector 18. Of the light emitting / receiving element.

In FIG. 9, reference numeral 112 denotes a light receiving element for communication provided at a position corresponding to the imprinting LED 16, and reference numeral 113 denotes the LED 14 or LE.
A light receiving element for communication provided at a position corresponding to D15,
Reference numeral 114 denotes a light emitting / receiving element for communication provided at a position corresponding to the face detection unit 23.

In FIG. 9, reference numeral 115 denotes a slide table on which the camera 1 is mounted and which slides so as to hit the light-emitting surface 103. The camera 1 is protruded from the table 115 by opening the battery cover 27 thereof. The supplied power connector 116 contacts a battery section (not shown) of the camera 1, so that supply and cutoff of power to the camera 1 can be controlled by the adjuster.

In FIG. 9, reference numeral 117 denotes a positive intercept of the power supply, and reference numeral 118 denotes a negative intercept of the power supply.

FIG. 10 is a block diagram showing a circuit configuration of a photometry adjuster as a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied.

That is, in FIG.
Reference numeral 1 denotes a CPU that controls the entire photometric adjuster, and reference numeral 152 denotes a luminance box that irradiates the luminance window 103 with light having the brightness specified by the CPU 151.

In this case, the luminance box 152 is formed by rotating a disk 154 having holes of a plurality of diameters by a motor 155,
By selecting a hole and passing the light of the lamp 153 having a constant brightness, the specified amount of light is applied to the brightness window 103.

In FIG. 10, reference numeral 156 denotes a communication circuit for performing non-contact communication with the camera 1, and includes a light emitting diode 157 (104) and a phototransistor 1
58 (105).

In FIG. 10, reference numeral 159 denotes a circuit for supplying power to the camera 1, and supplies or shuts off power to the camera 1 according to an instruction from the CPU 151.

In FIG. 10, reference numeral 160 denotes a display device for displaying the state of adjustment, an adjustment value, and an adjustment result. Reference numeral 161 denotes a start switch which is turned on when the start button 108 is pressed. Reference numeral 162 denotes a shutter test circuit for integrating the light amount by the sensor 110 and transmitting the result to the CPU 151.

In FIG. 10, reference numeral 163 denotes an oscillator for supplying a clock to the CPU 151;
4 is a power switch of the regulator, 164 is AC10
This is a constant voltage power supply that converts 0V into a predetermined DC power supply.

FIGS. 11 and 12 are flowcharts for explaining the processing procedure of the CPU 151 in the photometric adjuster as a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied. It is.

First, in FIG. 11, step S101
Then, when the power of the adjuster is turned on, the CPU 151 is activated to first initialize the adjuster.

Next, in step S102, the CPU 15
1 waits for the start switch 161 to be turned on.

Next, in step S103, the CPU 15
1 supplies power to the camera 1 when the setting of the camera 1 in the adjuster is completed and the start switch 161 is pressed.

Next, in step S104, the CPU 15
1 communicates with the camera 1 by the communication means 156.

Next, in step S105, the CPU 15
No. 1 waits for the camera 1 to respond in response to the communication in step S105, and upon receiving a response from the camera 1, proceeds to step S107.

Next, in step S106, the CPU 15
If there is no reply from the camera 1 even after the lapse of a predetermined time, the process proceeds to step S120, where the power of the camera 1 is shut off and the process ends.

Next, in step S107, the CPU 15
1 is set to EV7 in the luminance box 152.

Next, in step S108, the CPU 15
The communication 1 requests the camera 1 to start photometry.

Next, in step S109, the CPU 15
1 requests the photometry result of the camera 1, and after receiving the photometry result, stores it in an internal memory.

Next, in FIG. 12, in step S110, the CPU 151 sets the luminance box 152 to the EV 15.

Next, in step S111, the CPU 15
The communication 1 requests the camera 1 to start photometry.

Next, in step S112, the CPU 15
1 requests the photometry result of the camera 1, and after receiving the photometry result, stores it in an internal memory.

Next, in step S113, the CPU 15
1 calculates the deviation of the photometric circuit 58 of the camera 1 from the photometric results of the EV 7 and EV 15 and obtains a photometric circuit correction value therefrom.

Next, at step S114, the CPU 15
1 transmits the photometric circuit correction value to the camera 1.

Next, in step S115, the CPU 15
1 requests the camera 1 to perform a shutter opening operation in order to perform shutter opening adjustment.

Next, in step S116, the CPU 15
1 detects a shutter opening time and an opening diameter by a shutter opening test circuit 162.

Next, in step S117, the CPU 15
1 is to calculate a predetermined shutter opening time and a deviation from the opening diameter.

Next, at step S118, the CPU 15
In step 1, a correction amount is obtained from the deviation amount, and the correction amount is transmitted to the camera 1.

Next, in step S119, the CPU 15
1 transmits the completion of the adjustment to the camera 1.

When the camera 1 receives the completion signal, the adjustment value and the correction value are stored in the EEPROM 85.

After waiting for the camera 1 to store information in the EEPROM 85, the power supply of the camera 1 is cut off.

Next, the CPU 151 proceeds to step S102.
Return to and repeat the process.

(Second Embodiment) Next, a second embodiment of the present invention will be described.
An embodiment will be described.

While the first embodiment described above is an example using an active distance measurement circuit, the second embodiment shows an example using a passive type distance measurement circuit.

FIG. 13 is a perspective view showing an interchangeable lens type single-lens reflex camera to which the second embodiment of the camera and the camera adjuster according to the present invention is applied.

That is, in FIG. 13, reference numeral 1 is a camera body, reference numeral 211 is a power switch, reference numeral 213 is a release button, reference numeral 214 is a photographing mode setting button, reference numeral 215 is a strobe light emitting device, and reference numeral 2
Reference numeral 08 denotes a quick return mirror, and reference numeral 251 denotes an interchangeable lens.

FIG. 14 is a view for explaining the internal structure of a single-lens reflex camera of the interchangeable lens type to which the second embodiment of the camera and the camera adjuster according to the present invention is applied.

[0130] The autofocus method of the camera 1 is as follows.
"TTL phase difference detection method" is adopted.

That is, in FIG.
Reference numeral 2 denotes an AF sensor unit, which forms a phase difference image on a photosensor array of the AF sensor by passing the light flux returned by the sub mirror 207 through a split lens.

In the AF sensor unit 212, processes such as light intensity integration and quantization are performed, and a focus shift amount is calculated as distance measurement information, and the drive amount of the focusing lens 200 is calculated from the focus shift amount. Then, the focusing lens is driven and focused.

By using the AF sensor unit 212 as a light receiving means for communication, communication can be performed.

(Third Embodiment) The third embodiment is an example in which communication is performed between a camera accessory and an adjuster.

FIG. 15 is a diagram showing a strobe light emitting device as an example of a camera accessory to which the third embodiment of the camera and the camera adjuster according to the present invention is applied.

That is, in FIG.
1 is a main body of a strobe light emitting device, reference numeral 302 is a battery lid,
Reference numeral 303 denotes a strobe light emission window, and reference numeral 304 denotes a light control sensor for detecting the amount of strobe light reflected on a subject and controlling the amount of light emission so as to obtain an appropriate exposure amount.

In FIG. 15, reference numeral 305 denotes a camera having an AF system of a phase difference type. When an auxiliary light is requested from the camera body, an auxiliary light for AF focusing is projected onto a subject. It is a window for light.

In FIG. 15, reference numeral 306 denotes an attachment portion used for attaching the strobe light emitting device to a camera shoe. The attachment portion is provided with communication means in addition to the X signal. Exchanges shooting information such as information.

FIG. 16 is a block diagram showing a circuit configuration of a strobe light emitting device as a camera accessory to which the third embodiment of the camera and the camera adjuster according to the present invention is applied.

That is, in FIG.
Reference numeral 1 denotes a CPU that controls a strobe light emitting device, and reference numeral 2 denotes a CPU.
Reference numeral 52 denotes a control circuit from the CPU 251 for charging the main capacitor 253 with energy for light emission.

In this case, the CPU 251 always detects the charging voltage, and terminates the charging when the charging voltage reaches the predetermined charging voltage.

In FIG. 16, reference numeral 254 denotes a Xe tube for emitting strobe light, and reference numeral 255 denotes an emission dimming circuit, which starts emission of strobe light by a control signal from the CPU 251 and stops emission of light from the CPU 251. Light emission can be stopped by a signal.

In FIG. 16, reference numeral 256 denotes a light receiving circuit, which is activated by the CPU 251 at the start of light emission, integrates the light amount by the SPD 257, and outputs an integration completion signal to the CPU 251 when the light amount reaches the predetermined light amount.

The predetermined light amount for which the integration is completed is determined in advance by the CPU 2.
51 is obtained from the film sensitivity and aperture value obtained from the camera and transmitted to the light receiving circuit 256.

The CPU 251 outputs the start of light emission to the light emission dimming circuit 255 based on the X signal of the connector 259, and
Instruct the light receiving circuit 256 to start integration.

Upon receiving the integration completion signal from the light receiving circuit 256, the CPU 251 outputs a light emission stop signal to the light emission dimming circuit 255, and the light emission is stopped to complete the light adjustment.

In FIG. 16, reference numeral 258 denotes an AF auxiliary light LED. When there is no contrast in the subject, there is a communication request from the camera to turn on the AF auxiliary light.

In this case, the high-brightness type LED is turned on, and plays a role of giving a contrast to the subject.

In FIG. 16, reference numeral 259 denotes a connector serving as a communication contact point with the camera.
There are clocks, data, and chip enable signals for serial communication.

Using the above circuit, the strobe light emitting device and the adjuster perform adjustment as shown in Table 2.

[0151]

[Table 2]

The present specification described in the above embodiments includes the inventions shown below as additional notes 1 to 3 in addition to claims 1 to 3 described in the claims. Have been.

(Supplementary Note 1) The adjuster provided with the non-contact communication means outside the camera is an adjuster for adjusting each camera at the time of factory shipment.
A camera and a camera adjuster according to any one of the preceding claims.

(Supplementary note 2) The camera according to any one of claims 1 to 3, wherein the non-contact communication means comprises a combination of a light emitting element and a light receiving element. Moderator.

(Supplementary Note 3) The light emitting element includes an active distance measuring projection light IRED, a passive distance measuring auxiliary light,
3. The camera and the camera adjuster according to claim 2, further comprising at least one of an ED, a finder LED, a line-of-sight detection photo reflector LED, and a perforation detection photo reflector LED.

(Supplementary Note 4) The light receiving element may be an active distance light receiving sensor, a passive distance measuring sensor, a remote control light receiving element, a light measuring element, a phototransistor for a line-of-sight detecting photoreflector, or a phototransistor for a perforation detecting photoreflector. 3. The camera and the camera adjuster according to claim 2, wherein at least one of the cameras is included.

(Supplementary Note 5) A plurality of adjusters for performing different types of adjustment of the camera, including a communication unit for performing non-contact communication with the camera, and a plurality of non-contact communication units for performing communication with the adjuster. A communication switching means for switching the plurality of non-contact communication means, and a communication switching means for sequentially switching the plurality of non-contact communication means, and a communication means which has received a communication request from the camera adjuster. A camera and a camera adjuster, wherein the adjuster is determined from the plurality of types of adjusters.

(Supplementary Note 6) A communication device for performing non-contact communication, an adjuster for adjusting accessories, and a plurality of non-contact communication devices for communicating with the adjuster are provided. Communicate with the accessory's adjuster,
An accessory and an accessory adjuster, wherein the accessory is adjusted.

(Supplementary note 7) The accessory and the accessory according to supplementary note 6, wherein the accessory includes a rewritable nonvolatile memory, and a result of communication by the communication means is stored in the rewritable nonvolatile memory. Regulator.

(Supplementary Note 8) The accessory according to Supplementary Note 6 or 7, wherein the accessory is a strobe light emitting device, and an accessory adjuster.

[0161]

Therefore, as described above, according to the present invention, a light emitting element and a light receiving element provided in advance in a camera are used to communicate with the adjuster. There is no need to provide communication components, and non-contact communication is possible, so there is no problem due to poor contact.Adjustment time in the adjustment process is shortened, and the cost of the entire camera can be reduced. In addition to the above, the adjustment items can be limited by using a specific communication unit from a plurality of communication units, so that it is possible to provide a camera and a camera adjuster which has an advantage of eliminating malfunction.

[Brief description of the drawings]

FIG. 1 is a front view of a camera 1 to which a first embodiment of a camera and a camera adjuster according to the present invention is applied.

FIG. 2 is also a rear view of the camera 1 to which the first embodiment of the camera and the camera adjuster according to the present invention is applied.

FIG. 3 is an enlarged view around a finder of the camera 1 to which the first embodiment of the camera and the camera adjuster according to the present invention is applied.

FIG. 4 is a block diagram showing a schematic configuration of a camera control circuit to which the first embodiment of the camera and the camera adjuster according to the present invention is applied;

FIG. 5 is a flowchart for explaining a processing procedure of a control CPU 51 in a control circuit of the camera to which the first embodiment of the camera and the camera adjuster according to the present invention is applied;

FIG. 6 is a flowchart for explaining a processing procedure of a control CPU 51 in a control circuit of the camera to which the first embodiment of the camera and the camera adjuster according to the present invention is applied;

FIG. 7 is a flowchart for explaining a processing procedure of a control CPU 51 in a camera control circuit to which the first embodiment of the camera and the camera adjuster according to the present invention is applied;

FIG. 8 is an external view of a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied.

FIG. 9 is an external view of a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied; FIG.

FIG. 10 is a block diagram showing a circuit configuration of a photometry adjuster as a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied;

FIG. 11 is a flowchart for explaining a processing procedure of a CPU 151 in a photometric adjuster as a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied; .

FIG. 12 is a flowchart for explaining a processing procedure of a CPU 151 in a photometry adjuster as a camera adjuster to which the first embodiment of the camera and the camera adjuster according to the present invention is applied; .

FIG. 13 is a perspective view showing an interchangeable lens single-lens reflex camera to which a second embodiment of the camera and the camera adjuster according to the present invention is applied;

FIG. 14 is a diagram illustrating the internal structure of a single-lens reflex camera with interchangeable lenses to which a second embodiment of the camera and the camera adjuster according to the present invention is applied.

FIG. 15 is a diagram illustrating a strobe light emitting device as an example of a camera accessory to which the third embodiment of the camera and the camera adjuster according to the present invention is applied;

FIG. 16 is a block diagram showing a circuit configuration of a strobe light emitting device as an accessory of the camera to which the third embodiment of the camera and the camera adjuster according to the present invention is applied.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Camera (body), 2 ... Lens, 3 ... Flash emission window, 4 ... Shutter release, 5 ... Window for projecting infrared light by IRED for active distance measurement, 6 ... Active distance measurement Receiving window, 7: window for a photometric sensor for detecting the brightness of the scene, 8: window for notifying the subject of the self-timer's timing operation with LED light, 9: window for a finder, 10: finder, 11: a liquid crystal display window for displaying the number of frames of the film and the shooting mode; 12: a button for setting a self-shooting mode and a remote control (remote control) shooting mode; 13 ... a button for setting a flash shooting mode; 14 ... Display LED for notifying the photographer of shooting by flash emission, 15 ... Display LED for the photographer to confirm the focus, 16 ... Date data printed on film Windows for non-LED, 17 ... film winding spool, 18 ... window sensor for detecting a perforation of the film, 19 ... barrel, 20 ... D for detecting the information of the film cartridge
X section, 21: opening / closing lever for releasing lock for opening / closing back cover 27, 22: window for sensor for receiving remote control signal, 23: face detection unit, 27: for loading film into camera 1 28, a window for checking the presence or absence of a film cartridge; 29, a pressure plate for maintaining the flatness of the film; 3, a battery cover provided on the bottom surface of the camera 1; 25, a light receiving element for detecting a face, 26, a fork for rewinding a film, 51, a control CPU for controlling the operation of the camera, 52, a liquid crystal display panel, 53, a finder LED for displaying a focus, 54, Finder LED that gives notice of flash emission, 55: flash charging light emitting circuit, 56: main capacitor, 58: photometric circuit, 60: (motor) driver circuit, 61: Focusing lens drive motor 62 Film feed motor 63 Shutter drive plunger 64 1R switch (SW) 65 2R switch (SW) 66 Self LED 67 Remote control demodulation circuit 68 ... Remote control sensor, 69 ... AF circuit as active distance measuring sensor, 70 ... IRED, 71 ... PSD (position sensitive detector), 72 ... Self mode switch, 73 ... Strobe mode switch, 74 ... Perforation detection Photoreflector (WPR), 75: Light-emitting diode, 76: Phototransistor, 77: Film, 78: Perforation, 79: LED driver for imprinting, sometimes a plurality of 80s arranged in a line while detecting the signal of WPR74 … Imprinting LED, 81… Face detection Face detection circuit as a sensor, 82 ... light-emitting diodes one de, 83 ... phototransistor, 84 ... on the open of the back cover 27, switch off in the closed (B
KSW), 85 ... rewritable nonvolatile memory (EEPRO)
M), 86 oscillator, 87 battery, 88 stabilized power circuit, 89 reset circuit, 101 adjuster body, 102 display area, 103 brightness window, 104 light emitting element for communication, 105 ... light receiving element for communication 106 light emitting element for communication 107 detection box 108 start button 119 power switch of adjuster 109 projecting part 110 light sensor 111 light projecting for communication Light receiving element, 112: Light receiving element for communication, 113: Light receiving element for communication, 114: Light emitting and receiving element for communication, 115: Slide base, 117: Positive intercept of power supply, 118: Negative intercept of power supply, 151: Photometry CPU for controlling the entire controller, 152: luminance box, 103: luminance window, 153: lamp, 154: disk, 155: motor, 156: non-contact communication with the camera 1 157 (104): Light-emitting diode, 158 (105): Phototransistor, 159: Circuit for supplying power to the camera 1, 160: Display device, 161: Start switch, 162: Shutter test circuit, 163 .., An oscillator for supplying a clock to the CPU 151, 164, a power switch of a regulator, 164, a constant voltage power supply, 201, a camera body, 211, a power switch, 213, a release button, 214, a shooting mode setting button, 215, a strobe light emitting device Reference numeral 208 denotes a quick return mirror, 251 denotes an interchangeable lens, 212 denotes an AF sensor unit, 200 denotes a focusing lens, 301 denotes a strobe light emitting device main body, 302 denotes a battery cover, 303 denotes a strobe light emitting window, and 304 denotes a light control sensor. . Reference numeral 305 denotes a window for an auxiliary light for AF focusing for projecting light to an object; 306 a mounting portion; 251 a CPU which controls a strobe light emitting device; 252 a charging circuit; 253 a main capacitor; 254 a strobe light is emitted. Xe tube, 255: light emission dimming circuit, 256: light receiving circuit, 257: SPD, 258: auxiliary light LED, 259: connector as a contact for communication with a camera.

Claims (3)

[Claims] A communication device configured to perform non-contact communication with the camera; an adjuster configured to adjust the camera; a plurality of non-contact communication devices configured to communicate with the adjuster; and the plurality of non-contact communication. Communication switching means for switching means, the communication switching means sequentially switching the plurality of non-contact communication means, and communication with the coordinator by the communication means having a communication request from the coordinator of the camera. A camera and a camera adjuster characterized by performing. And reset means for outputting a reset signal when the power to the camera is turned on. When a reset signal from the reset means is detected, the communication switching means
2. The camera-to-camera adjuster according to claim 1, wherein the plurality of non-contact communication means are sequentially switched, and communication with the adjuster is performed by the communication means having a communication request. 3. A rewritable nonvolatile memory,
3. The camera-to-camera adjuster according to claim 1, wherein a result of the communication by the communication unit is stored in the rewritable nonvolatile memory.