JP2862261B2 - Cassette for electrostatic recording and cassette type electrostatic camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an electrostatic recording cassette and a cassette type static recording device capable of easily performing high-resolution electrostatic recording using a photosensitive member and a charge holding medium. It relates to an electronic camera.

[Conventional technology]

The applicant has already obtained high quality and high resolution for silver halide photography, electrophotography, television photography, television photography using solid-state imaging device (CCD), etc. and the processing steps are simple and long. We have proposed a recording / reproducing method using a charge storage medium that can store time, and can repeatedly and repeatedly reproduce stored character, line drawing, image, and code (1,0) information with image quality according to the purpose. (Japanese Patent Application No. 63-121592)
issue).

[Problems to be solved by the invention]

This electrostatic recording has extremely high resolution and can hold recorded information stably for a long time, but changes in conditions such as the distance between the photoconductor and the charge holding medium, applied voltage, and exposure time Therefore, there is a problem that setting of the interval, setting of the applied voltage, and the like are troublesome because the image quality of an image obtained by the method is greatly changed, and it has been desired to realize a device that can be easily photographed by anyone in a compact form.

The present invention has been made in view of the above circumstances, and a recording element composed of a photoreceptor and a charge holding medium is incorporated into an integrated case to form a cassette, which is simply set in a camera, thereby easily achieving high-resolution electrostatic recording. It is an object of the present invention to provide a cassette for electrostatic recording and a cassette-type electrostatic camera that can perform the above-described operations.

[Means for solving the problem]

For this purpose, the present invention relates to an electrostatic recording cassette incorporating a photoconductor fixed to a photographing window portion and a charge holding medium provided to face the photoconductor at a fixed interval, wherein the charge holding medium is An electrostatic recording cassette in which the recording unit can be sequentially moved to a photographing window, and a cassette type electrostatic camera in which the cassette can be incorporated, the charge holding medium is a film,
It consists of a disc type, etc., and displays barcodes indicating shooting conditions according to the photoreceptor material, charge holding medium, etc. on a part of the cassette surface, and attaches a semiconductor element that stores shooting conditions. Features.

[Action]

According to the present invention, electrostatic recording can be easily performed simply by assembling a photoconductor and a charge holding medium into a case so that the distance between them is constant, and setting the cassette in a camera. In this way, the distance between the photoconductor and the charge holding medium can be set with a predetermined machining accuracy. In addition, the cassette is set in a bar code with photographing conditions corresponding to the material of the photoconductor and the charge holding medium, and a means for reading the bar code is provided on the camera side.
Built-in camera only by setting cassette in camera
Since the photographing conditions such as shutter speed and aperture can be automatically set optimally by the ROM, anyone can easily perform electrostatic recording. In addition, ROM type IC, EPROM type IC, EE
It is also possible to mount a semiconductor element such as a PROM type IC or ROM if necessary, and exchange information with the CPU provided in the camera body to set the optimal shooting.

〔Example〕

 Hereinafter, embodiments will be described with reference to the drawings.

FIG. 1 is a view for explaining an embodiment of the cassette for electrostatic recording of the present invention, and FIG. 2 is a view for explaining a recording method in the present invention. In the figure, 100 is a cassette, 101 is a window, 102 is a barcode, 103 is a photoreceptor, 105 is a film-like charge holding medium, 107 is a film support member, 109 is a supply roll, and 111 is a take-up roll.

The cassette 100 is formed of an integral case of plastic or the like, and in this embodiment, a flexible film is used as a charge holding medium. A window 101 is opened on the upper surface of the cassette, and a photoconductor 103 is fixed to the cassette case at the window 101. An interval setting member 107 having a smooth surface is provided opposite to the photoconductor 103 at a predetermined interval to maintain a constant interval between the photoconductor and the charge holding medium, and is fixed to a cassette case. I have. By doing this,
The distance between the photoconductor and the charge holding medium can be set with a predetermined machining accuracy. The position of the distance setting member 107 may be adjusted so that the distance between the photoconductor and the charge holding medium can be changed. In addition, since the sensitivity varies depending on the type of the material of the photoreceptor, information on the photoreceptor material and the like is displayed as a conductive bar code 102, and can be read by a contact provided on a camera, for example. Then, in contact with the smooth surface of the interval setting member 107, the film-shaped charge holding medium 1
05 is fed out from the supply roll 109, and the recording that has been completed is taken up by the take-up roll 111. The cassette may be disposable, or only the film may be replaceable.

 Next, the recording principle will be described with reference to FIG.

FIG. 2 is a diagram for explaining a recording method using the charge holding medium of the present invention. In the figure, 103 is a photoreceptor, 103a is a photoconductive layer support, 103b is a photoreceptor electrode, 103c is a photoconductive layer, 105
Is a charge holding medium, 105a is an insulating layer, 105b is a charge holding medium electrode, 105c is an insulating layer support, and E is a power supply.

The photoreceptor 103 is formed on a photoconductive layer support 103a made of, for example, 1 mm thick glass, on which a transparent photoreceptor electrode 103b made of 1000 mm thick ITO is formed, and a photoconductive layer 103c of about 10 μm is formed thereon. It is configured. The charge holding medium 105 is a photoconductor 103
Is arranged with a gap of about 10 μm. The charge retention medium 105 is obtained by forming an Al electrode 105b having a thickness of 1000 mm on an insulating layer support 105c made of, for example, glass having a thickness of 1 mm by vapor deposition, and forming an insulating layer 105a having a thickness of 10 μm on the electrode 105b. In FIG. 1, this is in the form of a film.

First, as shown in FIG.
The charge holding medium 105 is set through a gap of about 10 μm, and the electrodes 103b and 103b are supplied by the power source E as shown in FIG.
A voltage is applied between 105b. In a dark place, since the photoconductive layer 103c is a high-resistance body, no change occurs between the electrodes.
When light is incident from the photoconductor 103 side, the photoconductive layer 103c in the portion where the light is incident exhibits conductivity, discharge occurs between the photoconductive layer 103c and the insulating layer 105a, and electric charges are accumulated in the insulating layer 105a.

When the exposure is completed, a voltage is applied as shown in FIG.
Turning off, and then taking out the charge holding medium 105 as shown in FIG. 2D, the formation of the electrostatic latent image is completed.

The photoconductor 103 and the charge holding medium 105 may be of a contact type instead of a non-contact type as described above, and in the case of the contact type, a positive or negative polarity is applied to the exposed portion of the photoconductive layer 103c from the photoconductor electrode 103b side. Charge is injected, and this charge is applied to the electrode 1 on the charge storage medium 105 side.
The charge is stopped when it is pulled by 05b, passes through the photoconductive layer 103c, and reaches the surface of the insulating layer 105a, and the injected charge is accumulated at that position. Then, when the photoconductor 103 and the charge holding medium 105 are separated, the insulating layer 105a is separated in a state where the charge is accumulated.

When this recording method is a planar analog recording, high resolution can be obtained in the same manner as the silver halide photography, and an insulating layer to be formed is formed.
Although the surface charge on 105a is exposed to the air environment, the air has a good insulating performance, so that it is stored for a long time without being discharged regardless of the light place or the dark place.

The charge storage period on the insulating layer 105a is determined by the properties of the insulator, and is affected by the charge trapping characteristics of the insulator other than the insulating properties of air. In the above description, charges are described as surface charges.Injected charges may simply accumulate on the surface, and microscopically penetrate into the vicinity of the insulator surface, and electrons or electrons enter the structure of the substance. Since the holes may be trapped, long-term storage is performed. In addition, the surface of the insulating layer 105a may be covered with an insulating film or the like and stored in order to prevent physical damage to the charge holding medium or discharge when the humidity is high.

Incidentally, in the embodiment of FIG. 1, the charge holding medium is formed of a flexible film, and a conductive layer is deposited on the inside or the lower surface thereof. And a voltage is applied. In this way, by exposing the image through the window 101 while applying a voltage, the film-shaped charge holding medium 10 is exposed.
An electrostatic latent image is recorded on 5. In this case, the photoreceptor and the film as a charge holding medium are set in a cassette in advance, and the delicate distance between the two is adjusted and fixed at the time of assembling. Therefore, the type of the photoreceptor is set according to the purpose. By preparing the cassette, the user can select the cassette in which the desired photoreceptor is incorporated.
It is possible to select a cassette having a sensitivity according to the purpose, such as 00 or ASA500. In this embodiment, one window is provided and recording is performed through the window. However, an additional reading window is provided, and an image recorded by a method such as potential reading and optical reading is provided through this window. You may make it read.

FIG. 3 is a conceptual diagram of an electrostatic camera incorporating the cassette of FIG. In the figure, 120 is an electrostatic camera, 121 is an objective lens, 123 is an aperture, 125 is a shutter, 127 is a contact, 129 is a battery and a circuit device.

The cassette shown in FIG. 1 can be incorporated into the electrostatic camera 120. When the cassette is inserted, the contact 127 contacts the bar code 102, and reads the material of the photoreceptor incorporated in the cassette. The ROM incorporated in the circuit device 129 automatically sets shooting conditions such as an applied voltage between the photoconductor and the charge holding medium, a shutter speed, and an aperture. Therefore, by simply turning on a switch (not shown), the user can perform image exposure under optimal conditions, and can easily perform high-resolution shooting.

Also, instead of a bar code, a semiconductor device (FIG. 102)
a) may be mounted on a cassette. For example, it is possible to store information specific to the cassette required on the camera side corresponding to the photoconductor and / or the charge holding medium in the ROM type IC, and electrically connect this to the CPU mounted on the camera body side.

In addition, by mounting ICs such as PROM, EPROM, and EEPROM on the cassette, date and time, subject description, shooting data (shutter speed, aperture, lens used, etc.), audio,
Information such as a serial number can be stored in the cassette. If it is possible to have a backup power supply on the cassette side, it is also possible to mount RAM. Then, if necessary, the CPU of the camera can rewrite the information in the EEPROM and EPROM mounted on the cassette.

In addition, a variety of usage forms, such as using various combinations such as ROM or ROM and RAM as necessary, reading data with the CPU and using it as it is, or processing some read data and using it It is possible to correspond to.

As described above, the mode in which the information at the time of shooting is stored on the cassette side is particularly effective in a cassette provided with a reading mechanism in which it is not necessary to take out the charge holding medium from the cassette after shooting.

FIG. 4 is a view showing another embodiment of the electrostatic recording cassette, and the same numbers as those in FIG. 1 indicate the same contents. In addition, 131 and 133 are spacers, 135 and 137 are rolls, 139 and 141
Is a spring.

In the cassette according to the present embodiment, spacers 131 and 133 are provided on the photoconductor 103, and rolls 135 and 1 provided opposite thereto are provided.
37 is pressed against the spacer by springs 139 and 141, and roll 13
The rotation of 5, 137 allows the film to be smoothly conveyed so that the distance between the photoreceptor and the film-like charge holding medium is kept constant. In this embodiment, the ground may be taken through a roll.

FIG. 5 shows a disk type electrostatic recording cassette, and FIG. 6 shows an electrostatic camera incorporating the cassette of FIG. In the figure, 200 is a disk type cassette, 201 is a case, 203 is a photoreceptor, 205 is a charge holding medium, 207 is a spacer, 209 is a window, 211 is a cassette hole, 213 is a disk hole, 220 is a camera, and 221 is a camera. An objective lens, 223 is an aperture, 225 is a shutter, 227 is a rotation axis, and 229 is a rotation knob.

In this embodiment, the charge holding medium is of a disk type, and a disk-shaped disk is incorporated in the cassette 200. A window 209 is opened in the case 201, through which image recording is performed. Hole 211 in the center of the case
However, a hole 213 is formed in the center of the disk.
This cassette is set in the camera 220, and the rotating shaft 227 is
The disk can be rotated by rotating the rotary knob 229 while passing through the first and 213, and an image can be recorded on a predetermined charge holding medium portion through the objective lens 221.

〔The invention's effect〕

As described above, according to the present invention, a recording element composed of a photoreceptor and a charge holding medium is integrally incorporated into a case to form a cassette, and only this is set in a camera, without requiring cumbersome setting of shooting conditions and the like. Thus, high-resolution electrostatic recording can be easily performed.

[Brief description of the drawings]

1 is a diagram for explaining an embodiment of the cassette for electrostatic recording of the present invention, FIG. 2 is a diagram for explaining a recording method in the present invention, and FIG. 3 is a diagram incorporating the cassette of FIG. FIG. 4 is a diagram showing another embodiment of the electrostatic recording cassette, FIG. 5 is a diagram showing a disk type electrostatic recording cassette, and FIG. 6 is a diagram of FIG. It is a figure showing an electrostatic camera incorporating a cassette. 100 ... cassette, 101 ... window, 102 ... barcode, 103
…… Photoconductor, 105… Film-like charge holding medium, 107 ……
Film support member, 109: supply roll, 111: take-up roll.

Claims (5)

(57) [Claims] An electrostatic recording cassette incorporating a photosensitive member fixed to a photographing window portion and a film-like charge holding medium opposed to the photosensitive member at a predetermined interval, comprising: An electrostatic recording cassette characterized in that a recording medium is sequentially supplied to a photographing window by contacting a medium on a surface of a spacing member facing a photosensitive member. 2. An electrostatic recording cassette incorporating a photoreceptor fixed to a photographing window portion and a film-like charge holding medium opposed to the photoreceptor at a predetermined interval, comprising: A cassette for electrostatic recording, wherein a medium is pressed by a spacer provided on a photoreceptor, and a recording unit is sequentially supplied to a photographing window. 3. An electrostatic recording cassette incorporating a photosensitive member fixed to a photographing window portion and a disk-shaped charge holding medium opposed to the photosensitive member at a predetermined interval, wherein the disk-shaped charge holding member is provided. A cassette for electrostatic recording, wherein the medium is rotated in the cassette and the recording unit is sequentially supplied to the photographing window. 4. The electrostatic recording cassette according to claim 1, wherein a bar code indicating a photographing condition corresponding to a photosensitive material is displayed on a part of the surface of the cassette. 5. A cassette-type electrostatic camera into which the cassette according to claim 1 can be incorporated, and which performs electrostatic recording on a charge holding medium through an objective lens and a photoreceptor.