JPH02111173A - Repetitive recording method for optical information and image pickup device - Google Patents

Abstract

PURPOSE:To realize an image pickup device with high resolution by forming image of optical image information corresponding to an optical image of an object onto a reversible recording member, erasing the information recorded on the recording member prior to the recording and recording the optical image information repetitively thereupon. CONSTITUTION:Prior to the recording of optical image information corresponding to the optical image of an object onto a reversible recording member 10, an erasure member EA erases the information already recorded on the recording member 10. While the optical image information corresponding to the optical image of an object O is separated by a 3-color separation optical system CSA, the resulting information is formed on the reversible recording member 10. As the reversible recording member 10, a photochromic material, a thermoplastic film or a magneto-optical material is used. Since the signal is reproduced as a video signal facilitating picture signal processing such as edit, trimming or the like, the method is utilized effectively in many applications such as print, electronic publishing or instrumentation requiring the reproduction of the picture with high resolution.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a high-resolution imaging device, and particularly to a high-resolution imaging device that can record and reproduce optical image information using a rewritable recording member.

(Prior art) The video signal obtained by imaging the subject is edited, trimmed,
Because it is easy to process other image signals, and easy to record, reproduce, and erase, it is used in many fields other than broadcasting1, such as printing, electronic publishing, and measurement. Applications are now being attempted in many fields, such as imaging and recording of optical image information corresponding to multiple time periods such as moving images, and imaging and recording of - images with higher resolution than conventional devices. There has been a strong demand for the emergence of an imaging device that can perform the following steps.By the way, in the imaging devices that have been commonly used, the optical image of the subject is converted into photoelectric conversion by the imaging lens using the imaging lens. The optical image of the subject is converted into electrical image information by an image sensor, and the electrical image information is output as a serial video signal on the time axis. It is f? 8 It is as per knowledge.

(Problems to be Solved by the Invention) Now, in order to obtain high-quality and high-resolution reproduced images, an imaging device that can generate video signals corresponding to the reproduced images is required. In the image pickup device used, there is a limit to miniaturization of the electron beam diameter in the image pickup tube, and higher resolution cannot be expected by miniaturizing the electron beam diameter, and the target capacity of the image pickup tube is the same as the target area. For example, in the case of video imaging devices, the frequency band of the video signal increases to several tens of MHz as the resolution increases. ~For reasons such as problems in terms of S/N because it exceeds several hundred MHz,
It is difficult to generate a video signal that can reproduce a high-quality, high-resolution reproduced image.

That is, in order to generate the image No. 48 that can reproduce high-quality, high-resolution images using an imaging device that uses an image pickup tube as an image pickup element, it is necessary to miniaturize the electron beam diameter in the image pickup tube, It is conceivable to use a large-area target as a target, but there is a limit to miniaturization of the electron beam in the image pickup tube due to the performance of the electron gun in the image pickup tube and the structure of the focusing system. There is a limit to increasing resolution by reducing the diameter, and if you use an imaging lens with a large image size and try to obtain high resolution by increasing the target area, it will be difficult to increase the resolution by increasing the target area. Depending on the imaging device using the image pickup tube, the S/N ratio of the image pickup tube output signal decreases significantly due to a decrease in high-frequency signal components in the output signal of the image pickup tube due to an increase in the target capacity of the image pickup tube. It is not possible to properly generate a video signal that can reproduce a high-quality, high-resolution reproduced image.

In addition, in order to reproduce high-quality, high-resolution images using an imaging device that uses a solid-state image sensor as an image sensor, it is necessary to use a solid-state image sensor with a large number of pixels; As more and more solid-state image sensors are driven, the clock frequency for driving them becomes higher (for example, in the case of a video camera, the clock frequency for driving the solid-state image sensor is several hundred MHz), and the frequency of the clock used to drive the solid-state image sensor becomes higher. Since the capacitance value of the circuit used in the solid-state imaging device has increased due to the increase in the number of pixels, such a solid-state imaging device is not practical considering the current situation where the limit of the clock frequency of the solid-state imaging device is said to be 20 MHz. It is considered that it cannot be constructed as a

In this way, conventional imaging devices have been unable to generate good video signals that can reproduce high-quality, high-resolution images due to the presence of an image sensor that is essential to their configuration. There is a desire for an imaging device that can generate video signals that can reproduce high-quality, high-resolution images, and that can easily perform editing, trimming, and other image signal processing. For example, in printing, electronic In many fields such as publishing and measurement, there has been a strong demand for an imaging device that can capture and record one image at a higher resolution than conventional imaging devices.

(Means for Solving the Problems) The present invention focuses optical image information corresponding to an optical image of a subject on a reversible recording member, and records it on the reversible recording member. A method for repeatedly recording optical image information in which information previously recorded on a recording member is erased and optical image information is repeatedly recorded; and a reversible recording method for recording optical image information corresponding to an optical image of a subject using an imaging lens. comprising means for forming an image on the member, means for recording the optical image information on the reversible recording member, and means for erasing recorded information recorded on the reversible recording member. a means for forming an image on a reversible recording member by an imaging lens in a state in which optical image information corresponding to an optical image of a subject is color-separated by a three-color separation optical system; An imaging device comprising means for recording color-separated optical image information on the reversible recording member, and means for erasing recorded information recorded on the reversible recording member. an apparatus, a means for forming an optical image of a subject on a light-to-light conversion element using an imaging lens, and a means for reversibly converting optical image information corresponding to the optical image of the subject formed on the above-mentioned light-to-light conversion element. means for reprojecting the light onto the recording member;
An imaging device comprising means for recording the optical image information on the reversible recording member, and means for erasing the recorded information recorded on the reversible recording member, and three-color separation. means for disposing an optical system between an imaging lens and a light-to-light conversion element, and for forming an optical image of a subject on the light-to-light conversion element by the imaging lens; means for reprojecting optical image information corresponding to an optical image of a subject onto a recording member having reversibility; means for recording optical image information on the recording member having reversibility; and means having the reversibility. Embodiment 6 Hereinafter, a method for repeatedly recording optical image information of the present invention and wx will be described with reference to the accompanying drawings. The specific contents of the image device will be explained in detail. Figures 1 to 12 and Figures 20 to 32
The figure is a block diagram of a typical configuration example of an imaging device that implements the method for repeatedly recording optical image information of the present invention, and FIGS. 1
Figure 5 is an example of the characteristic curve of a dielectric mirror, Figure 16 is a plan view of the three-color separation optical system, Figure 17 is a perspective view of the three-color separation optical system, and Figure 18 is for explaining the principle of recording charge images. 19 is a perspective view showing how an optical image separated by a three-color separation optical system is recorded on a recording member, and FIGS. 33 to 40 are illustrations of the recording member. FIG. 4 is a diagram for explaining an erasure method in a case where the process is performed using a charge image.

The embodiments of the imaging device shown in each of FIGS. 1 to 12 and 20 to 524 are film-like recording members wound on reels 11 and 12 as reversible recording members. In addition, the embodiment of the imaging device shown in each figure of FIGS. 25 to 32 uses a single sheet of IIA as a reversible recording member. Although a configuration example is shown in which a recording member for recording is used, any configuration may be used as the recording member 10.

1 to 12 and 20 to 32 are: ・The members indicated by the drawing code EA in each of FIGS. 1 to 12 and 20 to 32 are: This is an erasing device used to erase previously recorded information recorded on the recording member 10 before recording image information.

The above-mentioned erasing device EA has a recording member 10 of each recording member 7' depending on the type of recording member 10 used in the imaging device.
It goes without saying that a device should be used that is configured to have a function that allows the information signals recorded on it to be erased well. A method of erasing the charge image on the recording member 10 when the information signal is recorded on the recording member 10 in the form of a charge image will be described later with particular reference to the figures from FIG. 32 onwards. .

In the image pickup apparatus shown in each of FIGS. 1 to 4 and 9 to 12, the erasing operation performed by the erasing device EA on the reversible recording member 10 is an optical image information This shows an example of a configuration in which recording is performed at a position different from the position where recording is performed, and is also shown in FIGS. 5 to 8 and 20 to 32. An example of a configuration of an imaging device in which the erasing operation performed by the erasing device EA on the recording member 10 having reversibility is performed at the same position where optical image information is recorded is shown below. It shows.

Furthermore, in the imaging apparatus shown in FIGS. 1, 5, and 25, the optical image of the subject O is
An embodiment in which the optical image information corresponding to the optical image of the object is formed on the recording member lO by an imaging lens; An example of the configuration of an imaging device is shown, which includes means for recording optical image information on the reversible recording member, and means for erasing recorded information recorded on the reversible recording member. and also
In the imaging device shown in each of FIGS. 2, 6, and 26, the optical image of the subject O is formed by a three-color separation optical system C5.
An embodiment in which a plurality of optical images color-separated by A are formed on the recording member 10 by the imaging lens 1, that is, the optical image information corresponding to the optical image of the subject Q is three-color. A recording member 1 that is reversible by a contact lens 1 in a state where the colors are separated by the separation optical system C8A.
0, and a recording member 10 having reversibility for storing the color-separated optical image information
and a recording member 10 having reversibility as described above.
This shows an example of the configuration of an imaging device equipped with a means for erasing recorded information recorded in the image capturing device.Furthermore, the imaging device shown in each of FIGS. A means for forming an optical image of the object O on the light-to-light conversion element 3 by the photographing lens 1, and a means for reversibly converting optical image information corresponding to the optical image of the object formed on the light-to-light conversion element 3. means for re-projecting the optical image information onto the recording member 10 having reversibility, means for recording the optical image information on the recording member 10 having reversibility; 4, FIGS. 8 to 12, and FIGS. 20 to 2.
The imaging device shown in each of FIGS. 4 and 28 to 32 includes a three-color separation optical system CS, A, an imaging lens 1, and a light beam.
A means for forming an optical image of the object O on the light-to-light conversion element 3 by means of the imaging lens 1, and a means for forming an optical image of the object O on the light-to-light conversion element 3; A recording member 1 having reversibility for recording optical images and corresponding optical image information
0, a means for recording optical and other information on the reversible recording member 10, and a means for erasing recorded information recorded on the reversible recording member 10. An example of the configuration of an imaging device equipped with the following is shown.

In each of the embodiments of the imaging device described above, when a film-like recording member is used as the reversible recording member 1o, the recording member 10 is moved from the feed-out lever 11 by a drive mechanism (not shown). Take-up reel 12
The object is moved in a predetermined movement manner relative to the object.

That is, when the imaging device is operating in the shutter camera operation mode, after the optical shutter 2 is opened for a predetermined period of time and then closed, the recording member 10 is When the imaging device is operating in the operating mode as a video camera, each image is recorded while standing still for a predetermined time period. After that, the recording member 10
Intermittent feeding is performed such that the image is rapidly transferred by one frame (-one image). Note that as the intermittent transport mechanism for the recording member 10 described above, a mechanism similar to a well-known transport mechanism for movie shooting machines may be adopted.

Examples of the reversible recording member described above include photochromic materials, thermoplastic films, magneto-optical materials,
Any reversible optical recording member can be used as long as it has reversibility, and the reversible recording member 10 can photoelectrically convert an optical image incident thereon and record it as a charge image. It is also possible to use a recording member such as the one shown in FIG.
A recording member configured in a similar configuration to the light-to-light conversion element described later with reference to FIGS. 15 to 15, or a recording member whose configuration is described later with reference to FIG. can be mentioned.

Further, the recording member 10 may be in the form of a disc, a sheet, or
It may be in the form of a tape or any other configuration.

Next, the specific configuration of the three-color separation optical system C8A, which is indicated by the drawing code C8A in many of the figures showing embodiments of the imaging device, will be explained with reference to FIGS. 16 and 17. The specific structure of the light-to-light conversion element 3, which is indicated by the reference numeral 3 in many of the drawings showing embodiments of the imaging apparatus, will be described with reference to FIGS. 13 to 15.

First, the three-color separation optical system C3A is illustrated in FIG. 17 as an example in its entire perspective view, and in FIG. 16 as a plan view for explaining its construction principle. In the figure and FIG. 17, Dp is a dichroic mirror (R surface) that reflects red light and transmits green light and blue light, and a dichroic mirror (B, surface) that reflects blue light and transmits green light and red light. ) are orthogonal to each other (dichroic prism Dp).
, and Pr is a prism having a total reflection surface Mr, p
b is a prism having a total reflection surface Mb.

In FIG. 16, when light from object 0 enters the dichroic prism Dp through the imaging lens 1, among the light incident on the dichroic prism OP, the dichroic mirror (R surface) and the dichroic mirror (B
The green light component of the optical image of the object that has passed through both the dichroic prism D
Of the light incident on p, the red light component of the optical image of the subject reflected by the two surfaces of the dichroic mirror is reflected by the total reflection surface of the prism Pr, passes through the prism Pr, and forms the image forming surface Ig described above. The light is imaged on the imaging plane Ir which is in the same plane as that and is close to the above-mentioned imaging plane Ig, and furthermore, among the light incident on the dichroic prism Dp, the light is reflected by the 8 surfaces of the dichroic mirror. The blue light component of the optical image of the object is reflected by the total reflection surface of the prism pb, passes through the prism Pb, and is located in the same plane as the image formation planes Ig and Ir described above, and forms the image formation surface described above. Painter g.

The image is formed on an imaging plane Ib that is close to Ir.

And the three imaging planes I g g I r ?
As described above, Ib is formed in the same plane, and is arranged in a straight line.

Three-color separation optical system C shown in FIGS. 16 and 17
In 8A, the prism Pr extends the optical path length of the red light, and the prism pb extends the optical path length of the blue light, and as described above, the imaging plane Ig of the green light and the imaging plane Ig of the red light are formed.
r and the blue light imaging plane Ib are arranged in the same plane and close to each other on the - straight line as described above, and the prism Pr, Pb
or the amount of optical axis shift a of each color light, that is, X=a.

Let d be the amount of extension of the optical path length by the prisms Pr and Pb described above or the optical path length in the prisms Pr and Pb, and the prism P
If the refractive index of the constituent material of r and Pb is n, then X = d
Since it is expressed as (n 1)/n, as mentioned above, in order to equalize the amount of extension X of the optical path length by the prisms Pr and Pb and the deviation fika of the optical axis of each color light, the optical path length in the prisms Pr and Pb is This can be done by changing d and the refractive index n of the constituent materials of the prisms Pr and Pb.

As in the three-color separation optical system CSA of the above-mentioned configuration, three imaging planes Ir are formed adjacent to each other in a straight line within the same plane.
, Ig, and Ib. When using a color separation optical system configured to form optical images of a subject separated into individual colors, reversible recording members can be placed at the positions of the plurality of image formation planes described above. By arranging them, three high-resolution images are recorded and reproduced in parallel.

Next, the light-light conversion element will be explained with reference to @13 to FIG. 15. The light-to-light conversion element 3 may be a spatial modulation element such as a liquid crystal type optical modulator, a photoconductive Pockels effect element, a microchannel type optical modulator, etc.
Alternatively, an element constructed using a photochromic material can be used, but the light-to-light conversion element 3 may or may not have a memory function, depending on the purpose. Choice available.

FIG. 13 is a side sectional view showing a configuration example of a liquid crystal type optical modulator 3 that can be used as a light-to-light conversion element 3. In the liquid crystal type optical modulator 3 shown in FIG. 13, 31 is made of glass. plate, 32.33 is a transparent conductive electrode, 34 is a light guide I\!
35 is a light shielding layer, 36 is a dielectric mirror, 37 is a nematic liquid crystal layer, 38° and 39 are the above-mentioned nematic liquid crystal layer 3.
7, the optical axis of the molecule is parallel to the electrode plates, and 45 between the electrode plates.
40 is an optical glass substrate, 41 is an AC power source, WL is a writing light, and RL is a reading light.

When the optical image of the subject incident on the liquid crystal light modulator 3 shown in FIG. The electrical resistance value changes in accordance with the optical image of the object. The light shielding layer 35 is provided to prevent the electrical resistance value of the photoconductive film 34 from being changed by the readout light RL.

Then, the above-mentioned photoconductive film 34. The optical axis of the liquid crystal molecules in the nematic liquid crystal layer 37 to which an electric field corresponding to the optical image of the object is applied via the light shielding layer 35 dielectric mirror 36 and the liquid crystal alignment film 38 is no longer parallel to the polar plate. , when the readout light RL is projected onto the optical glass substrate 40 side of the liquid crystal type optical modulator 3, the nematic liquid crystal)jj'J
By generating reflected light RLr of the readout light RL due to the birefringence effect of the liquid crystal in
On the side, the optical image of the subject will be cursed.

FIG. 14 shows a configuration example of a light-to-light conversion element 3 having a different configuration from the light-to-light conversion element 3 already described with reference to FIG. In FIG. 14, 32.33 is a transparent electrode, which is provided on an optical glass substrate 31.40,
In FIG. 14, PCL is a photoconductive layer, DML is a dielectric mirror, and PML is an optical member (for example, lithium niobate single crystal or bismuth silicate) that changes the state of light according to the intensity distribution of the applied electric field. A light modulating material layer such as BSO)...The following example describes the case where the light modulating material layer is composed of a lithium niobate single crystal), where WL is the writing light and RL is the reading light. light, EL
is the erasure light.

In FIG. 14, the direction of incidence of the erasing light EL and the direction of incidence of the readout light RL are shown in the same direction, which means that the light-to-light conversion element 3 shown in FIG. As illustrated in Fig. 15, the readout light R with wavelength λ1
This is because a material having such a light transmittance characteristic as to reflect light L and transmit erasing light EL having a wavelength λ2 is used.

Now, when writing optical information to the light-to-light conversion element 3 shown in FIG. 14, a circuit consisting of a power source Vs and a changeover switch SW is connected to the light-to-light conversion element 3, A switching control signal is supplied to the switch SW to switch the movable contact of the changeover switch SW to the fixed contact WR side, and the voltage of the power supply Vs is applied between the transparent electrodes 32 and 33, and the voltage of the power supply Vs is applied between both ends of the photoconductive layer PCL. An electric field is applied to the light-to-light conversion element 3, and writing light WL is made incident on the transparent electrode 32 side of the light-to-light conversion element 3, thereby writing optical information into the light-to-light conversion element 3.

That is, the writing light WL incident on the light-to-light conversion element 3 as described above is transmitted through the transparent electrode 32 and is guided into the light guide WiM! jP
When the photoconductive layer PCL reaches CL, the electrical resistance value of the photoconductive layer PCL changes corresponding to the optical image caused by the incident light that has reached it. A charge image corresponding to the optical image caused by the incident light that has arrived is generated.

Regarding the light-to-light conversion element 3 in which the writing operation by the writing light WL continues to be performed, the reading operation of optical information written in the form of a charge image corresponding to an optical image by the incident light as described above is performed. When implementing, selector switch S
Assuming that the movable contact of W is switched to the fixed contact WR side,
While the voltage of the power source Vs is being applied between the transparent electrodes 32 and 33, readout light RL of a constant light intensity is projected from a light source (not shown) onto the transparent electrode 33 side of the light-to-light conversion element 3. It is done by doing.

That is, at the interface between the photoconductive layer PCL and the dielectric mirror DML in the light-to-light conversion element 3 where optical information has been written by incident light as described above, there is a photoconductive layer ff1PcL.
However, a charge image having an intensity distribution corresponding to the optical image due to the incident light reaching the is generated.

An optical member PML (
For example, a lithium niobate single crystal (PML) is in a state where an electric field is applied to it due to a charge image generated in correspondence with an optical image caused by incident light.

Since the refractive index of the lithium niobate single crystal PML described above changes depending on the electric field due to the first-order electro-optic effect, the refractive index of the lithium niobate single crystal PML changes depending on the electric field due to the first-order electro-optic effect. The aforementioned light guide 11I! The refractive index of the lithium niobate crystal PML, which is provided in series with the dielectric mirror DML with respect to the layer PCL, improves the light guide in the light-to-light conversion element 3 due to the incorporation of optical information by the incident light as described above. It changes depending on the charge image generated at the interface between ffiJM PCL and the dielectric mirror DML in correspondence with the optical image caused by the incident light that has reached the photoconductive layer PCL.

Therefore, when the readout light RL is projected onto the optical glass substrate 40 on the side of the transparent electrode 33, the readout light RL projected as described above changes from the optical glass substrate 40→transparent electrode 33→
Lithium niobate single crystal PML → dielectric mirror DML →
Then, the readout light RL described above is reflected by the dielectric mirror DML and returns to the optical glass substrate 40 on the transparent electrode 33 side as reflected light. Since the refractive index changes depending on the electric field due to the first-order electro-optic effect, the reflected light of the readout light RL changes depending on the intensity of the electric field applied to the lithium niobate crystal PML due to the first-order electro-optic effect of the lithium niobate crystal PML. It contains image information according to the distribution, and a reproduced optical image corresponding to the optical image created by the incident light is generated on the optical glass substrate 40 on the side of the transparent electrode 33.

Furthermore, in order to erase the information written by the write light WL as described above, a switching control signal is supplied to the aforementioned changeover switch SW to switch the movable contact of the changeover switch SW to the fixed contact E side. This is carried out by making sure that no electric field is generated between the transparent electrodes 32 and 33 in the light-to-light converting element 3, and then inputting the erasing light EL having a negative intensity distribution from the transparent electrode 33 side.

The light-light conversion element described with reference to FIGS. 13 and 14 stores optical image information of a subject imaged on it by an imaging lens in the form of a charge image, and stores the stored charge image. It has the function of reproducing the information as optical image information and the function of erasing the stored information.

Therefore, the light described with reference to FIGS. 13 and 14 -
The recording member having the same configuration as the light conversion element 3 can be used as the reversible recording member 10 to be used in the method for repeatedly recording optical image information and in the imaging device of the present invention. it is obvious.

Next, a specific configuration example of another reversible recording member having a function of recording an optical image as a charge image will be described with reference to FIG.

In FIG. 18, RLr is light containing optical image information to be recorded, and this light RLr connects glass substrate BP and transparent electrode E.
tw and a photoconductive layer member PCB, the light is incident on a recording head that functions as an optical image-to-charge image conversion member. In a state in which a recording operation is performed, the end face of the recording head, that is, the end face of the photoconductive layer member PCE and the surface of the charge retention layer CHL in the recording member 10 are in close contact with each other, or the two are opposed to each other with a small gap therebetween. Although made with the state.

The recording member 10 is a charge holding member F made up of an electrode Et which also serves as a substrate and a layer of an insulating material (for example, a polymer material).
A power supply Vb is connected between the picture electrodes Et and Etw so that an electric field is applied between the electrodes Et of the recording member 10 and the electrodes Etw of the recording head during recording. ing.

During the recording operation, the light RLr is imaged on the photoconductive layer member PCH in the recording head, which is constructed by laminating the glass substrate BP, the transparent electrode Etw, and the photoconductive layer member PCE. Since a constant voltage is applied from the power supply vb between the electrode Etw in the recording member 10 and the electrode Et in the recording member 10, the electrical resistance of the photoconductive layer member PCH described above is imaged thereon. It changes in response to the amount of light.

Therefore, the end face of the recording head, that is, the photoconductive layer member PC
A charge image pattern corresponding to the optical image incident on the recording head appears on the end surface of E, thereby causing charge retention yr! in the recording member 10. A charge image for one image corresponding to the optical image incident on the recording head is formed on the jc:HL,
This is recorded on the recording member 10. It goes without saying that the charge image recorded on the recording member 10 can be easily erased, and the recording member 10 having the structure shown in FIG. 18 can be used as a reversible recording member.

Note that when the above-mentioned charge image recording member, photochromic material, thermoplastic film, magneto-optical material, etc. are used as the reversible recording member 10, each recording member 10 used is suitable for erasing. It goes without saying that erasing of the recording member 10 having reversibility should be performed using an erasing device [EA] having a configuration similar to the above.

In the imaging devices shown in FIGS. 1 and 5 and FIG. 25, an optical image of a subject O is formed on a reversible recording member 10 by an imaging lens 1,
Optical image information corresponding to the optical image of the subject is recorded on the reversible recording member 10, but in the imaging apparatus shown in the first figure, the erasing device TI for the reversible recording member 10 is
The erasing operation by EA is performed at a position preceding the position where the optical image information of the subject O is to be recorded, and in the imaging apparatus shown in FIG. 5 and FIG. 25, respectively. The erasing operation by the erasing device EA on the reversible recording member 10 is performed at the same position where the optical image information of the subject 0 is to be recorded.

Note that it goes without saying that the erasing operation on the recording member 10 may be performed before the reversible recording member 10 is attached to the imaging device (this is common to all embodiments). be).

Next, the imaging device shown in each of FIGS. 2, 6, and 26 transmits a plurality of optical images obtained by color-separating the optical image of the subject 0 by the three-color separation optical system C8A to the imaging lens 1. This is an embodiment of an imaging device configured to form an image on the recording member 10 by using an eraser FIEA for the recording member 10 having reversibility.
The erasing operation is performed at a position preceding the position where the optical image information of the subject O is to be recorded. The erasing operation by the erasing device fiEA on the reversible recording member 10 is performed at the same position as the position where the optical image information of the object O is to be recorded.

The state in which a plurality of optical images color-separated by the three-color separation optical system C8A are focused on the recording member 10 by the imaging lens 1 is illustrated in FIG. 19 for the case where the recording member is a roll film. It is a good idea to refer to it.

Next, the imaging device shown in FIGS. 3, 7, and 27 transmits the optical image of the subject 0 to the imaging lens 1.
The image is formed on the light-to-light conversion element 3 by the light-to-light conversion element 3, and the optical image information corresponding to the optical image of the subject imaged on the light-to-light conversion element 3 is reprojected by light onto the reversible recording member 10. The present invention is an imaging apparatus in which the above-mentioned optical image information is recorded on the above-described reversible recording member 10.

In the imaging apparatus shown in FIG. 3, the erasing operation by the erasing device ff1EA on the recording member 10 having reversibility is performed at a position preceding the position where the optical image information of the subject ○ is to be recorded. In the imaging apparatus shown in FIGS. 7 and 27, an erasing device for the reversible recording member 10 is used. i! The erasing operation by EA is performed at the same position where the optical image information of the object O is to be recorded.

Next, the imaging apparatus shown in each of FIGS. 4, 8 to 12, 20 to 24, and 28 to 32 connects the three-color separation optical system C8A to the imaging lens 1 and the optical system. - A plurality of optical images obtained by color-separating the optical image of the subject 0 are formed on the light-to-light conversion element 3 by the imaging lens 1, and the light-to-light conversion element 3 is A plurality of optical images obtained by color-separating the optical image of the imaged object ○ and corresponding optical image information are re-projected onto the reversible recording member 10 using light, thereby producing the reversible recording member 10 described above.
In the imaging apparatus shown in FIGS. 4 and 9 to 12, the erasing device EA erases the reversible recording member 10. The operation is performed at a position preceding the position where the optical image information of subject 0 is to be recorded, and also in FIGS. 8, 20 to 24, 28 to 32, etc. In the imaging devices shown in FIG.
The erasing operation by the erasing device iEA is performed at the same position where the optical image information of the subject ○ is to be recorded.

Next, the imaging apparatus shown in FIGS. 3, 4, 7, 8 to 12, 20 to 24, and 27 to 32, that is, -Light conversion element 3
Among the embodiments of the imaging device which is provided with tΔ as a constituent member, the imaging device has a configuration in which a three-color separation optical system C8A is provided between the imaging lens 1 and the light-to-light conversion element 3. will be explained in more detail.

In FIG. 4, 0 is a subject, 1 is an imaging lens, 2 is an optical shutter provided when the color imaging device is configured as a shutter camera, C8A is a three-color separation optical system,
Reference numeral 3 indicates a light-to-light conversion element, 4 indicates a half prism (beam splitter), and 5 indicates a light source for reading light used when reading out optical image information from the light-to-light conversion element 3. This light source 5 is a laser light source. , any other light source can be used. Further, 6.9 is a lens, 7 and 8 are polarizing plates (polarizing plates 7 and 8 are used as necessary), 10 is a recording member, and 11.1
2 is a reel, and EA is an erasing device.

When the imaging device is configured with an optical shutter, the colors are separated by the three-color separation optical system provided to the light-to-light conversion element 3 during the period when the optical shutter 2 is open. The charge images generated in the light-to-light conversion element 3 in correspondence with the plurality of optical images are read out again in the state of optical images by the readout light, and then sent to the erasing device f! Previously recorded information is recorded on the recording member 10 by being reprojected onto the recording member 10 which has been previously erased by EA.

In addition, if the imaging device is configured without an optical shutter, the light that is incident on the light-to-light conversion element 3 after the time when the charge image in the light-to-light conversion element 3 is erased. The plurality of optical images color-separated by the three-color separation optical system and the corresponding charge images generated by the writing light WL are read out again as optical images by the readout light, and the previously recorded information is read out by the erasing device EA. The image is recorded on the recording member 10 by being reprojected onto the recording member 10 which has been previously erased.

The readout light RL incident on the light-to-light conversion element 3 in order to read out the charge image generated in the light-to-light conversion element 3 as an optical image simultaneously converts the entire charge image in the light-to-light conversion element 3 into an optical image. It may be a light flux having a large cross-sectional area that can be read out as It may also be flying spot scanning light that can be reproduced as information.

FIG. 19 is a diagram illustrating a state in which three optical images obtained by separating the optical image of subject 0 by a three-color separation optical system C5A are recorded on the recording member 10. In this figure, the recording member 10 is a tape. The optical image of the object O is separated into three optical images R, G, and B by the three-color separation optical system C3A.
This example shows a state where the two are recorded adjacent to each other.

The imaging device of the embodiment shown in FIG. 20 is the imaging device shown in FIG.
This corresponds to an embodiment in which the erasing operation is performed at the same position as the recording member 10 where optical image information is recorded, and the imaging apparatus of the embodiment shown in FIG. This corresponds to an embodiment in which the roll film-shaped recording member 10 in the imaging apparatus shown in FIG. 20 described above is changed to a recording member for recording a single image.

Next, Figure 9 (Figure 21, Figure 29) and Figure 10 (Figure 2)
The imaging device of the embodiment shown in FIGS. 2 and 30 is a configuration example in which a signal processing function is added to the imaging device shown in FIGS. 4, 20, and 28. It is also a block diagram.

FIG. 11 (FIG. 23, FIG. 31) shows the above-mentioned FIG.
28 is a block diagram showing a configuration example in which a photoelectric conversion function is added to the imaging device shown in FIG. 20 and FIG.
Each component corresponding to each component in the imaging device shown in FIG. 8 is given the same drawing reference numeral as that used in FIGS. 4, 20, and 28. .

First, in the imaging device shown in FIG. 9 (FIGS. 21 and 29), 13 is a light source, 14 is a lens, 15 is a half prism, and 16 is a signal processing device.
In the imaging apparatus shown in FIGS. 21 and 29), light emitted from a light source 13 is projected onto a recorded portion of the recording member 10 via a lens 14 and a half prism 15.

Of the light reflected from the recording member 10, the light that has passed through the half prism 15 is provided to the signal processing device 16.

The signal processing device 16 described above performs various signal processing such as editing, trimming, and optical amplification based on the optical image information incident thereon. It is constructed using memory, controllable parallel functional elements, controllable functional coupling elements, etc.

The signal processing device 2116 described above may perform optical parallel signal processing.

Note that as the signal processing circuit described above, one configured to perform various signal processing on a time series signal obtained by photoelectrically converting the light incident thereon may be used (
This point also applies to the signal processing circuit 16 shown in other figures).

In addition, the optical image information transmitted through the half prism 15 is directly projected onto the monitor screen to be recorded on the recording member 1.
Of course, the optical image recorded at zero may be monitored.

Next, the imaging device shown in FIG. 10 (FIG. 22, FIG. 30) includes a half prism 15 in the optical path between the lens 9 and the recording member 10, and the image to be recorded on the recording member 10. It is configured such that a part of the light of the optical image information is reflected by the half prism 15 and given to the signal processing device 16. The signal processing device E116 described above performs various signal processing such as editing, trimming, and optical amplification based on the optical image information input thereto.

The signal processing device 16 is configured using a controllable spatial modulation element, an irreversible parallel memory, a controllable parallel functional element, a controllable functional coupling element, etc., and the signal processing device 16 described above The fact that optical parallel signal processing may be performed in the embodiment is the same as in the embodiment shown in FIG. 9 (FIG. 21, FIG. 29) described above; In the imaging device shown in FIGS. 22 and 30, the optical image information reflected by the half prism 15 is directly projected onto the monitor screen so that the optical image to be recorded on the recording member 10 can be monitored. It's good.

Next, in the imaging device shown in FIG. 11 (FIGS. 23 and 31), 17 is a light source, 18 is an optical scanner (flying point scanner), 19 is a half prism, and 20 is a photodetector ( For example, a photodiode, a COD line sensor), and after the light emitted from the light source 17 is scanned by the optical scanner 18, it is projected onto the recorded portion of the recording member 10 via the half prism 19. It is. Therefore, among the reflected light from the recording member 10, the half prism 15
By applying the transmitted light to the photodetector 20,
Since the photodetector 20 described above outputs an electrical signal corresponding to the optical image information recorded on the recording member 10,
For example, the recorded information may be monitored by supplying it to a monitor receiver MTV.

The signal can be supplied to the signal processing circuit 21 to perform editing, trimming, and other signal processing.

FIG. 12 (FIG. 24, FIG. 32) is a block diagram of another embodiment of the imaging device of the present invention in which recording and reproduction of optical image information on the recording member 10 is performed by the holography method. In FIG. 12 (FIGS. 24 and 32), 0 is a subject, 1 is an imaging lens, and 2 is an optical shutter provided when the imaging device is configured as a shutter camera.

C8A is a three-color separation optical system, 3 is a light-light conversion element,
The above-mentioned light-to-light conversion element 3 may be one having the configuration described above, that is, a spatial modulation element 5 such as a liquid crystal type optical modulator, a photoconductive Pockels effect element, a microchannel type optical modulator, etc. An element or an element constructed using a photochromic material can be used.

Further, in FIG. 12 (FIGS. 24 and 32), 22 is a lens, 10 is a reversible recording member, and 11.12 is a reel. In practice, it goes without saying that a cassette may be used in which the feed-out reel 11 and take-up reel 12 of the recording member 10 are housed in one container.

In the imaging device shown in FIG. 12 (FIGS. 24 and 32), the optical image of the subject ○ is separated into three optical images by the three-color separation optical system CSA, and the three optical images are sent to the light-to-light conversion element 3 by the imaging lens 1. However, if the imaging device is configured as a shutter camera, an optical image of the object O is formed on the light-to-light conversion element 3 by the imaging lens 1 with the optical shutter 2 open. Needless to say, it will be done.

23 emits light to be used as readout light to the light-to-light conversion element 3, and coherent light that is shared when photographing a hologram on the recording member 10 and when reproducing a wavefront from the recording member 10. The light source is a semiconductor laser, for example.

The light that is used both for reading out the optical image from the light-to-light conversion element 3 and for photographing the hologram is transmitted from the light source 23 to the light source 23.
→ Half mirror 24 → Half mirror 25 → Concave lens 27
→It is supplied to the light-to-light conversion element 3 through the path of the light-to-light conversion element 3. As a result, an optical image corresponding to the optical image of the subject appears on the light-light conversion element 3, and the optical image is recorded by the lens 22 by being given to the lens 22 as a signal wave in the holography method. Part 1
Focuses on 0.

The coherent light emitted from the light source 23 described above is transmitted to the recording member 10 from the light source 23→half mirror 24→half mirror 2.
5→concave lens 26→recording member 10, the recording member 10 contains a hologram corresponding to the optical image of the subject appearing on the output side of the light-to-light conversion element 3, that is, an optical image of subject 0. is recorded on the recording member 10 as a hologram of three optical images separated by the three-color separation optical system C5A.

In the imaging apparatus shown in FIGS. 12 and 24, the recording member 10 described above is in the form of a roll film, and the recording member is moved from the feed reel 11 by a drive mechanism (not shown). Take-up reel 1
2 in a predetermined movement manner. That is, when the imaging device is operating in the shutter camera operation mode, after the optical shutter 2 is opened for a predetermined period of time and then closed, the recording member IO is moved for one frame (-). Image bones) are made to be transported only, and
When the imaging device is operating in the operating mode as a video camera, after each image is recorded while standing still for a predetermined period of time.

Intermittent feeding is performed to rapidly transport the recording member 10 by one frame (-one image frame).

Note that the intermittent transport mechanism for the recording member 10 described above is as follows:
A mechanism similar to a well-known transport mechanism used in movie shooting machines may be employed.

Further, as the recording member 10 described above in the imaging apparatus shown in FIG. 32, a recording member for recording one image is used.

The recording member 10 in the imaging device shown in FIG. 12 described above is transported to the recording position after the recorded travel information is erased in advance by the erasing device EA, and the imaging device in the embodiment shown in FIG. In the imaging device shown in FIG. 12,
The erasing operation on the recording member 10 by the erasing device EA is
This corresponds to an embodiment in which optical image information is recorded on the recording member 10 at the same position, and the imaging apparatus of the embodiment shown in FIG. This corresponds to an embodiment in which the roll film-shaped recording member 10 in the illustrated imaging device is changed to a recording member for recording a single image.

Next, a method of erasing a charge image on a recording member when recording is performed in the form of a charge image on the recording member will be described with reference to FIGS. 33 to 40.

FIG. 33 shows an example of the configuration of an imaging device configured to record a charge image on the recording member 10, which is similar to the configuration already described with reference to FIG. In FIG. 33, the component consisting of the transparent electrode Etw and the photoconductive layer member PCE is a recording head that functions as an optical image-charge image conversion member. When a recording operation is performed, the end surface of the recording head, that is, the end surface of the photoconductive layer member PCE and the surface of the charge retention layer CHL of the recording member are in close contact with each other or are separated by a small distance. They are placed in a state where they are facing each other.

The recording member consists of an electrode Et which also serves as a substrate and an insulating material (
For example, a charge retention layer CH composed of a layer of polymer material)
When recording, the electrode Et of the recording member and the electrode Etw of the recording head are
Both types of tiEt and E
A power supply vb is connected between tw.

During recording operation, light is applied to the transparent electrode Etw and the photoconductive layer member PC.
The image is formed on the photoconductive layer member PCB in the recording head, which is constructed by laminating E and E. However, as mentioned above, there is a power source between the electrode Etw in the recording head and the electrode Et in the recording member. Because a constant voltage is applied from vb.

The electrical resistance of the photoconductive layer member PCE described above changes in accordance with the amount of light focused on it, and the end face of the recording head, that is, the end face of the photoconductive layer member PCE, has a A charge image pattern corresponding to the incident optical image appears, and as a result, one image worth of charge image corresponding to the incident optical image to the recording head is formed on the charge retention layer CHL of the recording member. The polarity of the charge image formed on the charge retention layer CHL of the recording member is
ftt from power supply VB during recording operation! iEtw and electrode Et
It is determined in relation to the polarity of the applied voltage supplied between the two.

For example, in the example shown in Figure 33, the positive electrode of the power source vb is connected to the electrode Etw side, and the negative electrode of the power source vb is connected to the electrode Et side, so that the surface of the charge retention layer CHL of the recording member is A charge image is formed by positive charges.

FIG. 39(a) is a diagram illustrating a state in which the voltage of that part is increased due to the positive charge image formed as described above. In FIG. 1, V dark (+) is This shows the so-called fogging position.

FIG. 34 shows the charge retention layer C1 of the recording member as described above.
(The charge image due to the positive charge formed on the surface of L is
A negative charge is placed on the surface of the charge retention layer CHL of the recording member.
34 is an explanatory diagram of the case where the charge retention layer CHL of the recording member in FIG.
At the same time, the negative electrode of the erasing power supply Vbe is connected to the electrode Etw side, and the surface of the charge retention layer CHL of the recording member is charged with a negative charge. The charge image due to positive charges is erased. FIG. 39(b) shows the state erased by negative charges formed as described above, with a constant potential of Vdark (-).

That is, in the erasing method shown in FIG. 34, when erasing the charge image recorded on the charge retention layer CHL of the recording member, the charge image recorded on the charge retention layer CHL of the recording member placed in a place not exposed to light is erased. On the other hand, when recording a charge image, the charge retention layer CH
Erasing is performed by applying a voltage having a polarity opposite to that of the voltage applied to L to the charge retention layer CHL.

The components shown within the dashed-dotted line frame in FIG. 35 are the same components as the imaging device shown in FIG. 33, and the parts shown above the dash-dotted line frame - 34 is a part where the erasing operation shown in FIG. 34 is performed, and FIG. 35 shows the part before a charge image is recorded on the charge retention layer CHL of the recording member in the imaging device shown in the dashed-dotted line frame. 2 shows a configuration in which the charge image on the charge retention layer CHL of the recording member is slidably erased.

FIG. 36 shows that a recording head comprising a transparent electrode Etw and a photoconductive layer member PCE, which functions as an optical image-charge image conversion member, is irradiated with light emitted from a light source Le;
Erasing is performed by connecting the positive electrode of the power source @vb to the electrode Etw side and connecting the negative electrode of the power source vb to the electrode Et side to deposit a uniform positive charge on the surface of the charge retention layer CHL7 of the recording member. This is an example of a case where the (Q) in FIG. 39 shows a state erased by uniformly charging the positive charges formed as described above, using a constant potential of V bright (+) in the figure.

If the polarity of the charge of the charge image to be recorded on the charge retention layer CHL of the recording member is determined in advance to be positive, a uniform charge is applied to the surface of the charge retention layer CHL of the recording member as shown in FIG. 36. For example, the means described with reference to FIG. 34 is applied to the surface of the charge retention layer CHL of the recording member to which positive charges such as A state in which a negative charge is attached.

FIG. 37 shows that a recording head comprising a transparent electrode Etw and a photoconductive layer member PCE, which functions as an optical image-charge image conversion member, is irradiated with light emitted from a light source Le;
The negative electrode of the erasing power source Vbe is connected to the electrode Etw side, and the positive electrode of the erasing power source Vbe is connected to the electrode Et side to maintain the charge of the recording member [by depositing a uniform negative charge on the surface of the CHL]. This is an example of a case where deletion is performed. FIG. 39(d) shows a state in which the positive charges formed as described above are erased by uniform charging, using a constant potential of V bright (-).

FIG. 38(a) shows that the positive pole of the power supply vb is connected to one fixed contact of a changeover switch SWa which has a movable contact connected to the terminal T1 on the m-pole Etw side, and the changeover switch SWa
The negative electrode of the erasing power source Vbs is connected to the other fixed contact of the electrode E, and the negative electrode of the power source vb and the erasing power source Vbe are connected to the terminal T2 on the electrode Et side. Imaging operation is performed with the movable contact of the switch SWe switched to the fixed contact side connected to the positive pole of the power supply vb, and during erasing operation, the movable contact of the changeover switch SWe is switched between the two fixed contacts. Fig. 38(b) shows a configuration in which the positive terminal of the power supply vb is connected to one fixed contact of the changeover switch SWe, which has a movable contact connected to the terminal T1 on the electrode Etw side. In addition, one end of the erasing AC power source Ee is connected to the other fixed contact of the changeover switch SWe, and the negative terminal of the aforementioned power source Vb and the other end of the erasing AC power source Ee are connected to f.
I! , is connected to the terminal T2 on the extreme t side, and during imaging operation, the movable contact of the changeover switch SWe is connected to the power source vb.
An imaging operation is performed with the positive terminal of the switch SWe switched to the connected fixed contact side, and during an erasing operation, the movable contact of the changeover switch SWe is switched to the erasing AC power supply Ee. ing.

It is effective for the above-mentioned alternating voltage from the erasing alternating current power source Ee to be such that the amplitude gradually decreases on the time axis in order to effectively erase the charge image. Also, when erasing a charge image by applying an alternating voltage to a recording member on which a charge image is recorded, a voltage with a polarity opposite to the applied voltage used when forming the charge image is applied at the end of erasing. It is also effective to ensure that the charge image is erased satisfactorily.

FIG. 40 shows a state in which a charge image of positive charges is recorded on the surface of the charge retention layer CHL of the recording member as illustrated in FIG. 39(a). This figure explains the erasing operation when negative charges are uniformly attached to the surface of the charge retention layer CHL of the member. The voltage vl indicates a portion where the voltage is lower than the voltage vl described above (the portion where the voltage of the charge retention layer CHL is vq(+)).

In this way, as illustrated in FIG. 39(a), a charge image due to positive charges exists in a state where a charge image due to positive charges is formed on the surface of the charge retention layer CHL of the recording member. Since a higher voltage is applied to this part than to other parts, the negative electrode of the erasing power supply V b e is connected to the electrode E.
When connected to the tw side, the surface of the charge retention layer CHL of the recording member is uniformly charged with negative charges and erased, and as shown in FIG. (-) constant potential.

(Effects of the Invention) As is clear from the above detailed explanation, the method and imaging device for repeatedly recording optical image information of the present invention can store optical image information corresponding to an optical image of a subject on a reversible recording member. A method for repeatedly recording optical image information, in which the information recorded on the recording member is erased and the optical image information is repeatedly recorded before forming an image on the reversible recording member. , an imaging device that implements this method, that is, a means for forming an image of optical image information corresponding to an optical image of a subject on a reversible recording member using an imaging lens;
an imaging device comprising: means for recording the optical image information on the reversible recording member; and means for erasing the recorded information recorded on the reversible recording member; means for causing optical image information corresponding to the optical image to be imaged on a reversible recording member by an imaging lens in a state in which the optical image information is color-separated by a three-color separation optical system;
A means for recording the color-separated optical image information on the reversible recording member, and a means for erasing the recorded information recorded on the reversible recording member. an imaging device, a means for forming an optical image of a subject on a light-to-light conversion element using an imaging lens, and a means for reversibly converting optical image information corresponding to the optical image of the subject formed on the above-described light-to-light conversion element. means for re-projecting the optical image information onto the reversible recording member, means for recording the optical image information on the reversible recording member, and recording information recorded on the reversible recording member. an imaging device having a means for erasing the image, and a means for disposing a three-color separation optical system between an imaging lens and a light-to-light conversion element, and forming an optical image of a subject on the light-to-light conversion element by the imaging lens. a means for re-projecting optical image information corresponding to the optical image of the subject formed on the light-to-light conversion element onto the reversible recording member; Since the imaging device is equipped with means for recording image information and means for erasing the recorded information recorded on the recording member having reversibility, it is possible to erase the information recorded on the recording member of the present invention. This is because the method for recording optical image information in green, which erases and repeatedly records the optical image information, and the imaging device that implements this method do not use the image pickup tube or solid-state imaging device used in conventional imaging devices. , a problem with conventional imaging devices that use an image sensor, that is, in an imaging device that uses an image pickup tube as the image sensor, there is a limit to miniaturization of the electron beam diameter in the image pickup tube. Because of this, it is not possible to achieve higher resolution by miniaturizing the electron beam diameter, and because the target capacity of the image pickup tube increases in proportion to the target area, it is also possible to achieve higher resolution by increasing the target area. For example, in the case of video imaging devices, the frequency band of video signals has increased to several tens of megabytes as resolution increases.
Hz to several hundred MHz or more, which poses a problem in terms of S, making it difficult to generate video signals that can reproduce high-quality, high-resolution playback images. In addition, there are problems when using a solid-state image sensor with a large number of pixels to reproduce high-quality, high-resolution images using an imaging device that uses a solid-state image sensor as an image sensor. As the number of solid-state image sensors increases, the frequency of the clock to drive them increases (for example, in the case of a video camera, the frequency of the clock to drive the solid-state image sensor is several hundred MHz), and the frequency of the clock to drive the solid-state image sensor increases. As the capacitance value of the circuit used in the solid-state imaging device increases due to the increase in the number of pixels, the current limit of the clock frequency of such a solid-state imaging device is said to be 20 MHz. According to the present invention, it is possible to provide an imaging device that can easily obtain high-quality and high-resolution reproduced images, without the drawback that it is impossible to configure a practical device. In addition, in the present invention, optical image information of a subject at a plurality of times can be sequentially recorded on an irreversible recording member, or recorded on a reversible recording member used as a recording member for recording two images. It can be edited, cropped, and played back as a video signal that is easy to perform other image signal processing, so printing and electronic publishing require high-resolution image playback.

It can be effectively used in many fields such as measurement, and
Since a three-color separation optical system having a configuration that can be miniaturized is used, advantages such as the ease of miniaturizing the imaging device can be obtained.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 to 12 and 20 to 32 are block diagrams of different embodiments of the imaging device of the present invention, and FIGS. 13 and 14 show a light-light conversion element. FIG. 15 is a side view of the wavelength selection characteristic curve for explaining the operation, FIG. 16 is a plan view of the three-color separation optical system, and FIG. 17 is a side view of the three-color separation optical system.
A perspective view of a color separation optical system, FIG. 18 is a side view showing an example of the configuration of a recording member for recording charge images, FIG. 19 is a diagram illustrating the S mode of the recording member, and FIGS. 33 to 40 are FIG. 3 is a diagram for explaining an elimination method. 0... Subject, 1... Imaging lens, 2... Optical shutter provided when the imaging device is configured as a shutter camera, 3... Light-light conversion element, 4...
Half prism, 5... Light source of readout light used when reading out optical image information from the light-to-light conversion element 3. 6.9, 14, 22... Lens, 7, 8... Polarizing plate. 10... Recording member, 13, 17.23... Light source, 1
5゜19...half prism, 16...signal processing bag, 18...optical scanner (flying point scanner), 20 is photodetector, 21...signal processing circuit, 25... half mirror
126゜27...Concave lens, 32.33...Transparent electrode, MTV...Monitor receiver, PCL...Photoconductive layer, DML...Dielectric mirror, PML...Optical member (
light modulating material layer member), SW, SWe... changeover switch,
Vbe...power supply for erasing, Vs, Vb...power supply, 11゜A Figure 39 Procedural amendment (voluntary) March 23, 1989 Commissioner of the Japan Patent Office Yoshi 1) Moon Yi +, y, ・1.゛・υ2- 1. Indication of the case Patent Application No. 240295 of 1988 2. Title of the invention: Method for repeatedly recording optical image information and imaging device 3. Person who makes corrections. Relationship with the case. Patent Applicant Location: Yokohama, Kanagawa Prefecture 3-12 Moriyamachi, Kanayo-ku, Ichi Name (432) Japan Victor Co., Ltd. 4, Agent address 3-4-19-915 No. 7, Higashina-yo, Tokyo Parts Ward, Contents of amendment (1) Patent claim Correct the range as shown in the attached sheet. (2) The first line of page 10 of the specification, "The present invention is optical image information corresponding to an optical image of a subject" is corrected as follows. "The present invention is optical image information" (3) Page 55, line 11 of the specification, "The imaging device provides optical image information corresponding to the optical image of the subject" is corrected as follows. [Image device is optical image information] Facsimile 03 (472) 2257 5. Date of correction order (self-initiated) 6. Target of correction (1) Ming! Claims column (2) Detailed explanation of the invention in the specification column of Book II: ``Claims: IL optical image information is imaged on a reversible recording member, Method 2 for repeatedly recording optical image information in which optical image information is repeatedly recorded by erasing information recorded on a recording member prior to recording on a recording member having a characteristic, an optical image corresponding to an optical image of a subject means for forming an image of information on a reversible recording member using an imaging lens; means for recording the optical image information on the reversible recording member; The imaging device 3 is equipped with a means for erasing the recorded information, and the optical image information corresponding to the optical image of the subject is color-separated by the three-color separation optical system and focused on a reversible recording member by the imaging lens. means for recording the color-separated optical image information on the reversible recording member; and recorded information recorded on the reversible recording member. an imaging device 4 comprising a means for erasing an optical image of a subject, a means for forming an optical image of a subject onto a light-to-light conversion element using an imaging lens, and an optical image of a subject formed on the above-mentioned light-to-light conversion element; means for reprojecting corresponding optical image information onto a reversible recording member using light; means for recording the optical image information on the reversible recording member; and the reversible recording. 5. A three-color separation optical system is disposed between the imaging lens and the light-to-light conversion element, and the optical image of the subject is converted into light by the imaging lens. −
means for forming an image on the light-to-light conversion element, and means for re-projecting optical image information corresponding to the optical image of the subject imaged on the light-to-light conversion element onto a reversible recording member using light;
a Wl image device 6 comprising means for recording optical image information on the reversible recording member described above, and means for erasing recorded information recorded on the reversible recording member;
6. The wl imaging device U't according to claim 2, wherein erasing of the reversible recording member is performed prior to recording of optical image information. 7. Claims 2 to 5, wherein the reversible recording member is erased at a position where optical image information is recorded.
The imaging device 8 according to any one of claims 2 to 5, wherein erasing of the reversible recording member is performed at a position different from a position where optical image information is recorded. 9. The imaging device described in 9.1.3 has different optical characteristics as a three-color separation optical system. A first imaging plane on which a first optical image is formed by light transmitted through both of the second two dichroic mirrors, and a first prism on which light reflected by the first dichroic mirror (marked in the box) is formed. a second image forming surface on which a second optical image is formed by being reflected by the total reflection surface to pass through the first prism so that the optical path length is elongated in a predetermined manner; The light reflected by the second dichroic mirror is the second
and a third imaging surface on which a third optical image is formed with the optical path length being extended in a predetermined manner by being reflected by the total reflection surface of the prism to pass through the second prism. The imaging device 10 according to claim 3 or 5, wherein the imaging device 10 is configured to be arranged in a straight line in close proximity to each other within the same plane, and the optical image information of the subject is used as a charge image. Claims 2 to 5, wherein the charge image is erased by applying a voltage of opposite polarity to the applied voltage used when forming the charge image to the reversible recording member on which the charge image is recorded. The imaging device 11 according to any one of claims 2 to 3, wherein an alternating voltage is applied to a reversible recording member in which optical image information of a subject is recorded as a charge image to erase the charge image. The imaging device 12 according to any one of item 5 applies an alternating voltage whose amplitude gradually decreases on a time axis to a reversible recording member in which optical image information of a subject is recorded as a charge image to charge a charge image. Claims 2 to 5 wherein the image is erased
In the imaging device 13 according to any one of the paragraphs, when an alternating voltage is applied to a reversible recording member in which optical image information of a subject is recorded as a charge image to erase the charge image, the charge is removed at the end of erasing. Claims 2 to 5, wherein the charge image is erased by applying a voltage of opposite polarity to the applied voltage used when forming the image.
"Imaging device described in any of paragraphs"

Claims (1)

[Scope of Claims] 1. Prior to forming optical image information corresponding to an optical image of a subject on a reversible recording member and recording it on the reversible recording member, Method 2 of repeatedly recording optical image information, in which the information recorded in the image is erased and the optical image information is repeatedly recorded, the optical image information corresponding to the optical image of the subject is imaged onto a reversible recording member using an imaging lens. an imaging device 3 comprising: means for recording the optical image information on the reversible recording member; and means for erasing recorded information recorded on the reversible recording member. , a means for causing optical image information corresponding to an optical image of a subject to be color-separated by a three-color separation optical system and imaged on a reversible recording member by an imaging lens; An imaging device 4 comprising a means for recording optical image information of the state on the reversible recording member, and a means for erasing the recorded information recorded on the reversible recording member; A means for forming an optical image on a light-to-light conversion element using an imaging lens, and a means for recording optical image information corresponding to the optical image of a subject formed on the above-mentioned light-to-light conversion element to a reversible recording member. A means for reprojecting with light, a means for recording the optical image information on the reversible recording member, and a means for erasing the recorded information recorded on the reversible recording member. A three-color separation optical system is arranged between the imaging lens and the light-to-light conversion element, and an optical image of the subject is converted into light by the imaging lens.
means for forming an image on the light-to-light conversion element, and means for re-projecting optical image information corresponding to the optical image of the subject imaged on the light-to-light conversion element onto a reversible recording member using light;
An imaging device 6 comprising means for recording optical image information on the reversible recording member described above and means for erasing recorded information recorded on the reversible recording member, and reversible recording. The imaging device 7 according to any one of claims 2 to 5, wherein erasing of the member is performed prior to recording of the optical image information, and erasing of the reversible recording member is performed when the optical image information is recorded. Claims 2 to 5 wherein the recording is performed at the location where the recording is performed.
The imaging device 8 according to any one of claims 2 to 5, wherein erasing of the reversible recording member is performed at a position different from a position where optical image information is recorded. In the imaging device 9 described in , a first optical image is formed by light transmitted through both the first and second dichroic mirrors, which have mutually different optical characteristics as a three-color separation optical system. The light reflected by the first image forming surface and the first dichroic mirror described above is reflected by the total reflection surface of the first prism to pass through the first prism, and the optical path length is extended in a predetermined manner. a second imaging surface on which a second optical image is formed in a state in which the second optical image is formed;
and a third imaging surface on which a third optical image is formed with the optical path length being extended in a predetermined manner by being reflected by the total reflection surface of the prism to pass through the second prism. The imaging device 10 according to claim 3 or 5, wherein the imaging device 10 is configured to be arranged in a straight line in close proximity to each other within the same plane, and the optical image information of the subject is used as a charge image. Claims 2 to 5, wherein the charge image is erased by applying a voltage of opposite polarity to the applied voltage used when forming the charge image to the reversible recording member on which the charge image is recorded. The imaging device 11 according to any one of claims 2 to 3, wherein an alternating voltage is applied to a reversible recording member in which optical image information of a subject is recorded as a charge image to erase the charge image. The imaging device 12 according to any one of item 5 applies an alternating voltage whose amplitude gradually decreases on a time axis to a reversible recording member in which optical image information of a subject is recorded as a charge image to charge a charge image. The imaging device 13 according to any one of claims 2 to 5, which erases an image, applies an alternating voltage to a reversible recording member in which optical image information of a subject is recorded as a charge image. Claim 2: When the charge image is erased by applying a voltage, the charge image is erased by applying a voltage having a polarity opposite to that of the applied voltage used when forming the charge image at the end of erasing. Items to 5th
Imaging device according to any of the paragraphs