JPH05188474A - Camera for common use of silver salt/electronic still - Google Patents

Abstract

PURPOSE:To enable the execution of not only the optical recording of the video by exposing of a silver salt film but the electrical recording of the image picked up by a solid-state image pickup element, etc., as well on a film surface. CONSTITUTION:This camera has an optical recording means for subjecting the silver salt film 10 formed with a transparent magnetic recording layer to optical recording by using this silver salt film, the image pickup means 15 for subjecting the film to image pickup separately from the optical recording means, a recording means 23 for recording the video data picked up by the image pickup means and a writing means 5 writing the video data recorded by the recording means on the transparent magnetic recording layer of the silver salt film.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver salt / electronic still camera capable of taking both a silver salt still picture and an electronic still picture.

[0002]

2. Description of the Related Art Conventionally, a silver salt still camera performs optical recording of an image by giving appropriate exposure to the film surface of a silver salt film. In addition, a solid-state image sensor such as CCD is used to capture an image, and instead of a silver salt film,
There is an electronic still camera that records electrically on a floppy disk or the like.

[0003]

However, in the prior art as described above, the silver salt still camera only optically records an image on the silver salt film by exposure, and the electronic still camera uses the floppy disk. Since it is only recorded electrically on the disc, both types of recording cannot be performed simultaneously in the same shooting scene. For this reason,
It was not possible to use electrical records as backup for optical records.

An object of the present invention is to provide a silver-salt / electronic still camera capable of performing not only optical recording of an image by exposure of a film but also electrical recording of an image picked up by a solid-state image pickup device on the film surface. Is to provide.

[0005]

In order to solve the above-mentioned problems, the silver salt / electronic still combined camera according to the present invention is a silver salt / electronic still combined camera using a silver salt film 10 on which a transparent magnetic recording layer is formed. The optical recording means for performing optical recording on the silver salt film, the image capturing means 15 for performing image capturing separately from the optical recording means, and the recording means for recording video data imaged by the image capturing means. 23,
The video data recorded by the recording means is provided in the transparent magnetic recording layer of the silver salt film, and the writing means 5 is provided.

[0006]

According to the present invention, by using a silver salt film having a transparent magnetic recording layer formed thereon, not only optical image recording by exposure to the film surface but also electrical image recording by the image pickup means can be performed in the same film. Can be done.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the silver salt / electronic still camera according to the present invention. The cartridge 9 is
A silver salt film 10 is housed inside, and a transparent magnetic film is coated on the film 10 to enable magnetic recording (USP 4,965,627).
issue). When the cartridge 9 is mounted on the camera body 1, since the screen 10a (the portion indicated by the broken line) of the film 10 faces the position corresponding to the aperture 8 of the camera body 1, the shutter 33 described later should be opened and closed. By this, an appropriate exposure is performed on the screen 10a.

FIG. 2 is a sectional view showing the optical system of the camera according to the embodiment. Inside the camera body 1, a CCD 15 is provided as an image pickup means. Camera body 1
The light incident on passes through the lens 11 as shown by the arrow,
When the mirror 12 is down, the mirror 12
After passing through the screen 13 and the penta prism 14, it is partially reflected by the half mirror 17, and the lens 16
An image is formed on the CCD 15 via. On the other hand, when the mirror 12 is up, an image is formed on the screen 10a of the film 10. Therefore, the electric image can be picked up by the CCD 15 almost at the same time as the exposure of the film 10.

As shown in FIG. 1, a camera 1 is provided with a penta cover 2 on its upper surface and a back cover 3 on its back surface. A pressure plate 4 and a head 5 beside the pressure plate 4 are provided inside the back cover 3. This head 5 has a back cover 3
When is closed, it faces the position corresponding to the side of the aperture 8. Therefore, when the film 10 is appropriately exposed and the film 10 is rolled up, the CCD
The data of the image picked up by 15 can be written on the entire surface of the exposed film 10 by the head 5.
At this time, the image written by the head 5 is written on the back side of the same screen 10a as the image exposed on the film 10.

Next, the control system of the camera according to this embodiment will be described with reference to FIG. The control system of this camera is
The CPU 31 is mainly configured to have a brightness signal from the photometric circuit 26, a film sensitivity from a known DX contact provided on the cartridge 9, and a mode setting signal such as a program or a manual from the mode setting means 28. , Signals from the SW circuit 29 such as a half-push switch and a release switch are input.

The CPU 31 controls the shutter 33 and the diaphragm 34 based on the above-mentioned luminance signal, film sensitivity, mode setting signal and the like via the driver 32, and when the exposure is completed, the hoisting / rewinding motor 36 controls. The film 10 in the cartridge 9 is wound up. Also, C
The PU 31 drives the display device 35 to display control values such as shutter speed and aperture value.

On the other hand, when the CPU 31 drives the CCD 15 via the driver 20, the video signal accumulated in the CCD 15 is recorded in the memory 23 via the interface circuit 22. The video signal recorded in the memory 23 is transferred to the film 1 by the head 5 at a predetermined timing.
It is magnetically recorded on the transparent magnetic film above 0.

Next, the operation of the camera of this embodiment will be described based on the flowchart showing the operation of the CPU 31 shown in FIG. When a half-press signal from the SW circuit 29 is input by half-pressing a release button (not shown), this program starts (S1) and the photometric signal from the photometric circuit 26 is input (S2). Next, the CPU 31
The proper exposure is calculated from the photometric signal input in step S2 and the sensitivity of the film from the DX contact (S3). Then, the result obtained by the above calculation is displayed on the display circuit 35 (S4).

When the release button is fully pressed, the SW circuit 29
Waits for the full-press signal to be input from (S5). If the full-press signal has been pressed, the process proceeds to step S6. If not, the process returns to step S2.

When the release button is fully pressed, the CCD 15
An image is picked up by (S6), and the picked up image signal is written in the memory 23 (S7). Next, the mirror 12 is raised (S8), the diaphragm 34 is controlled to a set value (S9), the shutter 33 is opened, the film 10 is appropriately exposed, and then the shutter 33 is closed (S10).
Further, after performing a returning operation such as moving down the mirror 12 and opening the narrowed diaphragm 34 (S1
1), start the winding / rewinding motor 36, and
The winding of 0 is started (S12).

Here, while feeding the film 10 for one frame, the image data written in the memory 23 is written on the film 10 by the head 5 (S13). Then
It is judged whether or not the hoisting / rewinding motor 36 has finished hoisting (S14).
The rewinding motor 36 is stopped (S15).

The present invention is not limited to the embodiment described above, and various modifications can be made. For example, the electrical data of the image picked up by the CCD 15 or the like has been described in the example of being written in the transparent magnetic film of the film 10 every time the film 10 is wound up, but the image data of all frames is written in the memory 23. It is also possible to perform only the exposure of, and when the film 10 is rewound after the exposure of all the frames is finished, the film 10 can be collectively written in.

When applied to a half-size camera or a panoramic camera, a magnetic recording layer may be provided on the optically unused portions on the top, bottom, left and right of the 35 mm silver salt film. In this case, the magnetic recording layer does not necessarily need to be transparent.

[0019]

As described in detail above, according to the present invention, optical recording of an image by exposure is performed on the front surface of the film.
Since the image can be electronically recorded on the back side of the same film, it is possible to easily and inexpensively realize a silver-salt / electronic still shared camera, and it is easy to handle both recordings.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a silver salt / electronic still camera according to the present invention.

FIG. 2 is a diagram showing an optical system of a camera according to an example.

FIG. 3 is a block diagram showing a circuit in the camera according to the embodiment.

FIG. 4 is a flowchart for explaining the operation of the camera of the embodiment.

[Explanation of symbols]

 1 Camera 2 Penta Cover 3 Back Lid 4 Pressure Plate 5 Head 8 Aperture 9 Cartridge 10 Film 10a Screen 11 Lens 12 Mirror 13 Screen 14 Penta Prism 15 CCD 16 Lens 17 Half Mirror 20 Driver 22 Interface Circuit 23 Memory 26 Photometry Circuit 28 Mode Setting Means 29 SW circuit 31 CPU 32 Driver 33 Shutter 34 Aperture 35 Display device 36 Winding / rewinding motor

Claims (1)

[Claims] 1. A combined silver salt / electronic still camera using a silver salt film on which a transparent magnetic recording layer is formed, the optical recording means performing optical recording on the silver salt film, and the optical recording means. An image pickup means for taking an image separately from the image pickup means, a recording means for recording the image data imaged by the image pickup means, and a writing means for writing the image data recorded by the recording means in the transparent magnetic recording layer of the silver salt film. A silver-salt / electronic still camera that is equipped with and.