JP2001183737A - Image pickup magazine attachable/detachable camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image pickup magazine attachable/detachable camera which reduces battery consumption of the camera to the utmost, prevents unnecessary operations and automatically sets the camera side to an ISO film sensitivity adapted to an imaging device on the image pickup magazine side when photographing with the image pickup magazine attached. SOLUTION: Electric contacts 4 and 17 are provided in the upper and lower parts on the rear face of a camera body 1, and electric contacts 5 and 8 are provided in the upper and lower parts of an electronic imaging device 7 of an image pickup magazine 6. When the image pickup magazine 6 is set to an aperture 13 of the camera, a camera control circuit part 16 detects the connection of electric contacts to inhibit driving of a motor 18. ISO film sensitivity data are sent from an image pickup magazine side control circuit part 19 to the camera control circuit part 16 through communication circuits 32 and 26, and ISO film sensitivity display on the camera side is invalidated, and the ISO film sensitivity corresponding to the electronic imaging device 7 is displayed on the display part of the camera.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera of, for example, a 135 mm type, in which an image pickup bag is detachable and is wound up and down by driving a motor.

[0002]

2. Description of the Related Art A camera system in which an image pickup bag is attached to a film surface of a silver halide film type camera and an object image is captured by an electronic image pickup device has been put to practical use. This camera system can capture a subject image as a file in a storage medium, print it to a desired size, and correct the image as needed.

[0003]

Conventionally, in this type of camera system, an appropriate exposure cannot be obtained unless the ISO display set on the camera body is associated with the ISO display required by the image sensor. . In a normal silver halide film shooting operation, the shutter is released each time a release operation is performed, and the film is wound up. Then, when the film ends, rewinding is performed. When the imaging back is attached, the above operation wastes battery power and becomes an unnecessary operation.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned various problems, and an object of the present invention is to provide an image pickup device for photographing with an imaging back attached.
Provided is a camera capable of minimizing battery consumption of a camera, preventing unnecessary operation, and automatically setting a camera side to an ISO film sensitivity suitable for an image pickup element on an imaging back side, and providing a detachable camera back. It is in.

[0005]

According to the present invention, there is provided a camera having a detachable image pickup bag according to the present invention, wherein an image pickup bag provided with an electronic image pickup element is detachable at a film surface position, and is wound up and rewinded. When the camera and the imaging bag are provided with electrical contact portions respectively, and the imaging bag is attached to a film surface position of the camera, a control circuit unit of the camera rewinds and winds the motor. It is configured to prohibit power supply to the power supply. According to the present invention, there is provided a camera in which an imaging back including an electronic imaging device is detachably mounted on a film surface position, and the winding and rewinding are electrically driven, and an electric contact portion is provided on each of the camera and the imaging back. When the imaging back is attached to a film surface position of the camera, the electrical contact unit is connected so that signals can be transmitted and received between a control circuit unit of the camera and a control circuit unit of the imaging back, and IS on the camera side
O setting is invalidated, the ISO film sensitivity data set on the imaging back side is sent from the imaging back control circuit section to the camera control circuit section, and the IS
It is configured to change and display the O film sensitivity display to the sent ISO film sensitivity data.

According to the above configuration, it is possible to prevent exposure failure due to imaging back photographing, and to prevent unnecessary battery consumption and operation on the camera side.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing an embodiment of a camera according to the present invention. The camera body 1 has a camera control circuit section 16 for electrically controlling the camera, and a motor 18 is driven and controlled under the control of the camera control circuit section 16. The motor 18 winds and rewinds a film (not shown). The subject image passing through the lens 2 is formed on a film surface (not shown) by the shutter 3, and the subject image is projected on the film. Electrical contacts 4 and 17 are provided on the upper and lower surfaces of the back of the camera body.
The electric contacts 4 and 17 are connected to the camera control circuit section 16 via the communication circuit 26.

On the other hand, the image pickup bag 6 has an electronic image pickup element 7, and electric contacts 5 and 8 are provided on the upper and lower sides thereof to contact the electric contacts 4 and 17, respectively. Electrical contact 4
And 8 are connected to the imaging back side control circuit unit 19 via the communication circuit 32. A display panel 12 is provided on the back side of the imaging back 6. FIG. 1 shows a state in which a back cover on the back side of the camera is removed, and an imaging back 6 is attached by a fitting means (not shown) such that the electronic imaging element 7 is in close contact with a film surface position of an aperture 13 on the back of the camera.

FIG. 2 is a perspective view of the imaging back of FIG. 1 as viewed from the front side, and FIG. 3 is a perspective view of the camera body and the imaging back of FIG. 1 as viewed from the rear side. A transfer terminal 10 for sending an image data file to a personal computer or the like is provided on a side surface of the imaging bag 6. Further, a recording medium insertion port 9 for accommodating a recording medium for recording image data is provided.

A release button 14 and an input button 15 for inputting various data are provided on an upper cover of the camera body 1. On the other hand, ISO film sensitivity data is input to the lower part of the display panel 12 of the imaging back 6, data is transferred, and further written on a recording medium.
An input button 11 for performing an operation of reading or the like is provided.

FIG. 4 is a block diagram showing an embodiment of a camera circuit according to the present invention. The control CPU 27 corresponds to the camera control circuit unit 16, and the control CPU 27 includes a lens drive unit 20, an aperture control unit 21, a shutter control unit 22, a calculation unit 25, a user input unit (input button) 15,
The motor drive unit 24 and the camera-side display unit 23 are connected. The control CPU 31 controls the imaging back side control circuit unit 19.
The transfer unit 33, the storage unit 34, the input button 11, and the signal processing unit 29 are connected to the control CPU 31, and the recording medium 30, the memory 28,
The display unit 12 and the electronic image sensor 7 are connected.

FIG. 5 is a flowchart for explaining the operation of the camera according to the present invention. It is assumed that the imaging back 6 is mounted on the back of the camera body 1, the electrical contacts 4 and 17 are connected to the electrical contacts 5 and 8, respectively, and the camera body 1 and the imaging back 6 are in a communicable state. The control CPU 27 of the camera body 1 communicates with the imaging back 6 via the communication circuit 26 and determines whether or not communication is possible (steps (hereinafter referred to as “S”) 501 and S502). When it is determined that the image pickup bag 6 is not attached and the photographing is performed using a normal silver halide film, the AE is determined based on the ISO film sensitivity data on the camera side.
The arithmetic operation and the AF operation are performed, and the photographing is performed (S509).

If it is determined that communication is possible, a power-off signal is sent to the motor drive unit 24 to inhibit the motor operation. The motor drive unit 24 cuts off the power supply and the motor is maintained in a stopped state (S503, S504). Next, the control CPU 27 displays the I
A process for invalidating the setting of the SO film sensitivity is performed (S5).
05). Then, it communicates with the control CPU 31, receives the data of the ISO film sensitivity set on the imaging back 6, and changes the ISO display on the camera-side display unit 23 (S506, S507, S508). Control CPU 27
Performs AE calculation and AF calculation based on the changed ISO film sensitivity data (S509).

The ISO film sensitivity data corresponding to the electronic image sensor 7 is stored in the storage unit 3 under the control of the control CPU 31.
4 and when the imaging back is attached,
The data on the ISO film sensitivity is read. The user presses the input button 11 in advance to
It is also possible to input film sensitivity data, store it in the storage unit 34, and use the data. Also, an example has been described in which power supply to the motor is cut off as means for prohibiting motor drive, but a drive prohibition signal may be transmitted without shutting off power.

[0015]

As described above, the present invention relates to a camera in which an image pickup back provided with an electronic image pickup device can be attached to and detached from the film surface and the winding and rewinding are electrically driven. When the imaging back is mounted on the film surface of the camera, the control circuit of the camera prohibits the rewinding and energization of the winding motor. In addition, an electric contact portion is provided on each of the camera and the imaging back so that when the imaging back is mounted on the film surface of the camera, signals can be transmitted and received between the control circuit of the camera and the control circuit of the imaging back. Connect the electrical contact section and disable the ISO setting on the camera side, send the ISO film sensitivity data set on the imaging back side from the control circuit section of the imaging back to the control circuit section of the camera, and display the ISO film sensitivity display on the camera side. The transmitted ISO film sensitivity is changed and displayed. Therefore, when the imaging back is mounted, the camera side is automatically set to the ISO film sensitivity set on the imaging back side, and there is an effect that the imaging back can be performed based on the film sensitivity. In addition, since driving of the motor for feeding the film is prohibited, it is possible to prevent the battery from being consumed and to prevent useless operation on the camera side at the time of shooting by the imaging back.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an embodiment of a camera according to the present invention, which is a side view of a camera body and an imaging back.

FIG. 2 is a perspective view of the imaging back of FIG. 1 as viewed from the front side.

FIG. 3 is a perspective view of the camera body and the imaging back of FIG. 1 as viewed from the rear side.

FIG. 4 is a block diagram illustrating an embodiment of a camera circuit according to the present invention.

FIG. 5 is a flowchart for explaining the operation of the camera according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Camera body 2 ... Lens 3 ... Shutter 4,5,8,17 ... Electrical contact 6 ... Imaging back 7 ... Electronic imaging device 9 ... Recording medium insertion opening 10 ... Transfer terminal 11,15 ... Input button 12 ... Display panel ( 13) Aperture 14 ... Release button 16 ... Camera control circuit section 19 ... Imaging back side control circuit section 20 ... Lens drive section 21 ... Aperture control section 22 ... Shutter control section 23 ... Camera side display section 24 ... Motor drive section 25 arithmetic unit 26, 32 communication circuit 27, 31 control CPU 28 memory 29 signal processing unit 30 recording medium 33 transfer unit 34 storage unit

Claims (2)

[Claims] 1. A camera in which an imaging back provided with an electronic imaging device is detachable at a film surface position, and a winding and a rewinding are electrically driven, and an electric contact portion is provided on each of the camera and the imaging back. A camera having a detachable imaging back, wherein when the imaging back is mounted at a film surface position of the camera, a control circuit unit of the camera inhibits power supply to a rewinding and winding motor. 2. A camera of a type in which an imaging back including an electronic imaging device is detachably mounted on a film surface position and in which winding and rewinding are electrically driven, electrical contacts are provided on the camera and the imaging back, respectively. When the imaging back is attached to a film surface position of the camera, the electrical contact unit is connected so that signals can be transmitted and received between a control circuit unit of the camera and a control circuit unit of the imaging back, and the camera is connected to the camera. The ISO setting of the imaging side is invalidated, the ISO film sensitivity data set on the imaging back side is sent from the imaging back control circuit unit to the camera control circuit unit, and the ISO film sensitivity display of the camera side is sent to the camera back. A camera having a detachable imaging back, which is configured to change and display ISO film sensitivity data.