JP2605991B2 - Electromagnetic radiation information recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic radiation information recording device.

[0002]

2. Description of the Related Art A video signal obtained by picking up an optical image of a subject by an image pickup device is easy to edit, trim, and other image signal processing, and has a reversible recording member capable of erasing a recorded signal. Although it has a feature that recording and reproduction can be easily performed by using it, an imaging device that has been conventionally generally used for generating a video signal is
The optical image of the subject formed on the photoelectric conversion unit of the imaging device by the imaging lens is converted into electrical image information corresponding to the optical image of the subject by the photoelectric conversion unit of the imaging device, and the electrical image information is converted. It is of a configuration that can be output as a serial video signal on the time axis, and in the configuration of the imaging device, various types of imaging tubes and various solid-state imaging devices are conventionally used as the imaging device described above. This is well known.

In order to obtain a high-quality and high-resolution reproduced image, an imaging device capable of generating a video signal capable of reproducing a high-quality and high-resolution reproduced image is required. However, in an image pickup apparatus using an image pickup tube as an image pickup device, there is a limit to miniaturization of the electron beam diameter in the image pickup tube, so that it is not possible to expect high resolution by minimizing the electron beam diameter, and Since the target capacity of the image pickup tube increases in correspondence with the target area, it is not possible to realize high resolution by increasing the target area. Due to the fact that the frequency band of the video signal becomes several tens MHz to several hundred MHz or more as a result, the image quality becomes higher due to the imaging device. It is difficult to generate a video signal as capable of reproducing the reproduction image Zodo.

In an image pickup device used in a conventional image pickup apparatus, after an electric signal generated by photoelectrically converting optical information to be recorded is transmitted as a video signal, a new image of the object is obtained. The image capturing apparatus itself has a configuration that can generate a video signal corresponding to a natural optical image, and stores an electric signal generated corresponding to a sequential subject image. Therefore, conventionally, when it is necessary to record an electrical information signal obtained by imaging, the video signal generated by the imaging device is recorded using, for example, a magnetic recording device. However, since it is useful in various respects that the contents of the image are recorded, there has been a demand for an apparatus having a storage function in the image pickup apparatus itself. Therefore, as one of the apparatuses that can satisfy the above-mentioned demand, the present applicant company has at least a photoconductive layer member and a light modulating material layer member between the first electrode and the second electrode. For example, liquid crystal, PLZ
T, lithium niobate, and other light modulating materials), and a means for supplying a predetermined voltage between the first and second electrodes. Many electromagnetic radiation information recording apparatuses in which an electromagnetic radiation flux to be recorded is incident on a layer member to record the electromagnetic radiation information to be recorded on the light modulation material layer member. Has been proposed.

In an electromagnetic radiation information recording apparatus in which electromagnetic radiation information to be recorded is recorded on a light modulation material layer member, a light modulation material used for recording electromagnetic radiation information is used. Since the characteristic curve showing the change characteristic of the light transmittance with respect to the change of the applied voltage in the layer member is not linear but has a curve, the characteristic curve is For example, in order to enable recording and reproduction of a color image in a good state, a substantially linear portion in a characteristic curve showing a change characteristic of light transmittance with respect to a change in applied voltage in the light modulating material layer member is required. Only need to be made to be used for recording. However, the change characteristic of the light transmittance with respect to the change of the applied voltage in the light modulation material layer member used for recording the electromagnetic radiation information to be recorded is a variation in the characteristic generated at the time of manufacturing the light modulation material layer member,
Since the electromagnetic radiation information recording device is constantly changing due to various changes such as a change in the ambient temperature, the light transmission with respect to the change in the applied voltage in the light modulating material layer member used for recording the electromagnetic radiation information is always performed. It is not always the case that the electromagnetic radiation information targeted for recording is recorded by the recording operation using the substantially linear portion of the characteristic curve indicating the rate change characteristic.

[0006] The applicant's company has previously disclosed a first electrode and a second electrode in Japanese Patent Application No. 2-41529 as an electromagnetic radiation information recording device capable of solving the above-mentioned problems. A component configured to include at least a photoconductive layer member and a light modulating material layer member between the first and second electrodes, and a means for supplying a predetermined voltage between the first and second electrodes. And applying the electromagnetic radiation to be recorded to the photoconductive layer member, and applying the reference light to the photoconductive layer member and the light modulating material layer member. The range is within the range of the voltage applied to the light modulation material layer member when the light in the region between white and black of the subject is given to the photoconductive layer member and the light modulation material layer member. A reference light having a light intensity such that the photoconductive layer member and the light modulating material layer Material, and is recorded according to the detection result of the light intensity of the reference light transmitted through the light modulation material layer member in the component portion including the photoconductive layer member and the light modulation material layer member. We have proposed an electromagnetic radiation information recording device that automatically controls the amount of exposure by electromagnetic radiation.

FIG. 6 shows a schematic configuration of an electromagnetic radiation information recording device proposed in Japanese Patent Application No. 2-41529 described above.
The following is a description with reference to FIG. In FIG. 6, O is a subject, L is an imaging lens, Et1 and Et2 are transparent electrodes,
PCL is a photoconductive layer member, PML is a light modulating material layer member, RL
S is a reference light source, PD is a photodetector, and VC is a supply voltage control circuit. In the electromagnetic radiation information recording apparatus shown in FIG. 6, light including image information from the subject O is formed into an image on the photoconductive layer member PCL by the imaging lens L. The emitted reference light having a predetermined light intensity is applied to the transparent electrode Et1 → the photoconductive layer member PCL → the light modulating material layer member PML → the transparent electrode Et2 →
It is provided to the photodetector PD via the optical path of the photodetector PD. In the photodetector PD, an output signal corresponding to the amount of reference light incident thereon is supplied to the supply voltage control circuit VC as a control signal, and the supply voltage is controlled in accordance with the control signal output from the photodetector PD. The voltage output from the control circuit VC is supplied between the two transparent electrodes Et1 and Et2. In the state where the voltage is supplied from the supply voltage control circuit VC between the two transparent electrodes Et1 and Et2 as described above, the two transparent electrodes E
The photoconductive layer member PCL and the light modulating material layer member PML provided between t1 and Et2 are connected to the aforementioned supply voltage control circuit VC.
Is placed in the electric field generated between the two transparent electrodes Et1 and Et2 by the voltage supplied between the two transparent electrodes Et1 and Et2 to which the voltage is supplied.

As described above, the impedance of the photoconductive layer member PCL on which the optical image of the subject O is formed by the imaging lens L is in a state of changing corresponding to the optical image of the subject O. An electric field whose electric field intensity is changed corresponding to the optical image of the subject O is applied to the light modulating material layer member PML provided in series with the photoconductive layer member PCL. As a result, the optical state of the light modulating material layer member PML is changed to a state in which the optical properties are changed corresponding to the electric field intensity applied thereto. As the light modulating material layer member PML, for example, when a polymer-liquid crystal composite film having a configuration in which a nematic liquid crystal or a smectic liquid crystal is sealed in a number of fine holes in a polymer material is used, Since the alignment state of the liquid crystal in the many fine holes in the polymer-liquid crystal composite film is changed corresponding to the optical image of the subject O, the polymer-liquid crystal composite film Accordingly, the light transmittance is changed.

FIG. 7 exemplifies a characteristic curve of the light modulating material layer member PML showing the change characteristic of the light transmittance with respect to the change of the applied voltage in the light modulating material layer member PML using the polymer-liquid crystal composite film. 7, the horizontal axis is voltage,
The vertical axis is the light transmittance. The voltage on the horizontal axis in FIG. 7 is a voltage applied to both ends of the light modulation material layer member PML, that is, as illustrated in FIG. 6, the transparent electrode Et1, the photoconductive layer member PCL, and the light modulation material layer member PML. And the transparent electrode Et2 are arranged in series, and are voltages at both ends of the light modulating material layer member PML in a configuration in which the transparent electrode Et2 and the transparent electrode Et2 are arranged in series. Since the voltage value obtained by subtracting the voltage value between both ends of the photoconductive layer member PCL from the voltage value supplied to the photoconductive layer member PCL, the voltage on the horizontal axis in FIG. This indicates a voltage value applied to the modulation material layer member PML. The voltage value indicated by Vb on the horizontal axis in FIG.
Photoconductive layer member PCL corresponding to the black portion of subject O
Indicates the voltage value applied between both ends of the modulation material layer member PML at the portion of the light modulation material layer member PML, and the light transmittance of the light modulation material layer member PML in the state where the voltage Vb is applied is Tb,
The voltage value indicated by Vw on the horizontal axis in FIG. 7 is a voltage value applied between both ends of the light modulating material layer member PML in the portion of the photoconductive layer member PCL corresponding to the white portion of the subject O. The light transmittance of the light modulating material layer member PML in the state where the voltage Vw is applied is Tw, but the portion of the characteristic curve between the voltage value Vb and the voltage value Vw is as follows. As described above, it needs to be substantially linear.

As described above, the change characteristic of the light transmittance with respect to the change of the applied voltage in the light modulation material layer member PML used for recording the electromagnetic radiation information to be recorded is as described above. Since the variation is caused by various causes such as variation in characteristics caused at the time of manufacturing the member PML, change in the ambient temperature, etc., the modulation material layer corresponds to a portion from a black portion to a white portion in the optical image from the subject O. Member PM
The range of the voltage value applied between both ends of L is not necessarily kept in the range of the voltage values indicated by Vb to Vw on the horizontal axis in FIG. Therefore, in the electromagnetic radiation information recording device already proposed in Japanese Patent Application No. 2-41529, when the reference light emitted from the reference light source RLS is given to the photoconductive layer member PCL and the light modulating material layer member PML, The range of the voltage value applied to the light modulating material layer member PML is such that light in the region between white and black of the subject O is given to the photoconductive layer member PCL and the light modulating material layer member PML. The reference light having a light intensity that falls within the range of the voltage applied to the light modulating material layer member PML at the time of
ML, and in accordance with the detection result of the light intensity of the reference light transmitted through the light modulation material layer member PML in the component portion including the photoconductive layer member PCL and the light modulation material layer member PML,
The range of the voltage value applied between both ends of the modulation material layer member PML corresponding to the black portion to the white portion in the optical image from the subject O is the voltage value indicated by Vb to Vw on the horizontal axis in FIG. The voltage between the first and second electrodes is automatically controlled so that good recording can always be performed so that the state is maintained within the range. In FIG. 7, Vr denotes a voltage applied between both ends of the light modulation material layer member PML when the reference light emitted from the reference light source RLS is applied to the photoconductive layer member PCL and the light modulation material layer member PML. In FIG. 7, Tr is a light modulation material layer member PML.
Shows the light transmittance of the light modulating material layer member PML when the voltage value Vr is applied between both ends of the light modulating material layer member PML.

[0011]

According to the above-mentioned proposed electromagnetic radiation information recording apparatus, the above-mentioned problem can be solved satisfactorily. In the apparatus, electromagnetic radiation targeted for recording is applied to a component including at least a photoconductive layer member and a light modulation material layer member between a first electrode and a second electrode. And the light source R of the reference light
Since the irradiation of the reference light radiated from the LS is performed at the same time, problems such as the fact that the information to be recorded cannot be accurately recorded or the detection result by the reference light is inaccurate occur. So a solution was needed.

[0012]

According to the present invention, there is provided a component comprising at least a photoconductive layer member and a light modulating material layer member between a first electrode and a second electrode; Means for supplying a predetermined voltage between the first and second electrodes, the electromagnetic radiation flux to be recorded is made incident on the photoconductive layer member, and If you want to record the electromagnetic radiation information that is being recorded,
A control information detection electromagnetic radiation flux having a predetermined intensity is incident on a control information detection area formed by dividing at least one of the first and second electrodes into a plurality of portions, and Means for causing the electromagnetic radiation flux to be recorded to enter an area other than the control information detection area, and first and second electrodes, a photoconductive layer member, and a light modulation material layer member in the control information detection area. Based on the detection result of the light intensity of the reference light transmitted through the light modulating material layer member in the above-described component in a state where the voltage applied between the first and second electrodes in the component including Means for setting, as a recording electrode voltage, first and second electrode voltage values so that an appropriate recording state can be obtained by the photoconductive layer member; and an electromagnetic recording apparatus in which the recording electrode voltage is recorded. An electromagnetic radiation information recording apparatus comprising: means for allowing a recording operation to be performed in a state where the radiation flux is supplied between the first and second electrodes in a region where the ray flux is incident; and a first electrode and a second electrode. A component configured to include at least a photoconductive layer member and a light modulating material layer member between the electrodes; and a means for supplying a predetermined voltage between the first and second electrodes. When the electromagnetic radiation flux to be recorded is incident on the photoconductive layer member and the electromagnetic radiation information to be recorded is recorded on the light modulation material layer member, the components described above are used. In the state where the voltage between the first and second electrodes in the above is set to a voltage in a range that does not cause a change in the state of the light modulation material layer member, a predetermined voltage is applied by the electromagnetic radiation targeted for recording in the above-described components. Exposure is performed Means for opening the optical shutter to expose light, and the range from the white part to the black part of the subject given by the above-described exposure operation is applied to the voltage and light applied to the light modulating material layer member of the constituent part. A reference light having a predetermined intensity is provided after the optical shutter is closed so that a state is set to a predetermined portion on a characteristic curve indicating a relationship with the transmittance. Control of the voltage between the first and second electrodes according to the detection result of the light intensity of the reference light transmitted through the light modulation material layer member in the component portion including the photoconductive layer member and the light modulation material layer member The present invention provides an electromagnetic radiation information recording device that performs the following.

[0013]

According to the present invention, the first and second electrodes in the component portion including at least the photoconductive layer member and the light modulating material layer member between the first electrode and the second electrode. A control information detection electromagnetic radiation flux having a predetermined intensity is incident on a control information detection region formed by dividing at least one of the electrodes into a plurality of portions. The first and second electrodes in the control information detection region include the first and second electrodes, the photoconductive layer member, and the light modulation material layer member.
An appropriate recording state is obtained with the photoconductive layer member based on the detection result of the light intensity of the reference light transmitted through the light modulating material layer member in the above-described constituent part in a state where the voltage applied between the electrodes is changed. The first and second electrode voltage values are set as recording electrode voltages. Next, the recording operation is performed with the recording electrode voltage being supplied between the first and second electrodes in the region where the electromagnetic radiation flux to be recorded is incident on the recording electrode voltage. . Further, a light modulating material is provided between the first and second electrodes in a component portion including at least the photoconductive layer member and the light modulating material layer member between the first electrode and the second electrode. While supplying a voltage in a range that does not cause a change in the state of the layer member, open the optical shutter so that a predetermined exposure is performed by the electromagnetic radiation that is to be recorded on the above-described components. Expose. After the optical shutter is closed, a reference light having a predetermined intensity is applied to a component including the photoconductive layer member and the light modulation material layer member. The voltage between the first and second electrodes is automatically controlled in accordance with the detection result of the light intensity of the reference light transmitted through the light modulation material layer member, and the white of the subject given by the exposure operation is controlled. The range from the part to the black part is set to a predetermined part on the characteristic curve showing the relationship between the applied voltage and the light transmittance in the light modulating material layer member of the above-described constituent part. To be done.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific contents of the electromagnetic radiation information recording apparatus of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 1 and 5 are block diagrams of different embodiments of the electromagnetic radiation information recording apparatus of the present invention, and FIGS. 2 and 3 are diagrams showing a part of the components of the electromagnetic radiation information recording apparatus of the present invention. FIG. 4 is a characteristic example diagram for explaining the operation of the components of the electromagnetic radiation information recording apparatus of the present invention shown in FIG. 3, and FIG. 7 is a response characteristic curve example with respect to the wavelength of the photoconductive layer member. 1 and 5, O is a subject, L is an imaging lens, Et
1, Et2 is a transparent electrode, PCL is a photoconductive layer member, PML is a light modulating material layer member, RLS is a reference light source, PD is a photodetector, CCT is a control circuit, OP is an operation unit, SW1 is a changeover switch, SW2 is a switch, and FIGS. 1 and 3
And VC in FIG. 5 are supply voltage control circuits. Further, in FIG. 5, PS is an optical shutter. The transparent electrode Et1 shown in FIG. 1 is divided into a portion denoted by reference numeral 1 and a portion denoted by reference numeral 2, but in the configuration example shown in FIG. Is a portion corresponding to the recording area, and the portion of the transparent electrode Et1 indicated by reference numeral 2 is a portion corresponding to the control information detection area. In the configuration example shown in FIG. 2, the portions of the transparent electrodes Et1 indicated by reference numerals 1a to 1d are portions corresponding to the recording area, and the portions of the transparent electrodes Et1 indicated by reference numerals 2a to 2d are This is a portion corresponding to the control information detection area. When a plurality of recording areas are provided as in the example of FIG. 2, instead of providing separate control information detection areas for each of the recording areas as in the configuration example illustrated in FIG. 2, Needless to say, a control information detection area commonly used for a plurality of recording areas may be provided.

In the electromagnetic radiation information recording apparatus according to one embodiment of the present invention shown in FIG. 1, light from a subject 0 passes through a portion 1 corresponding to a recording area on a transparent electrode Et1 by an imaging lens L through a photoconductive layer. The reference light, which is imaged on the member PCL and has a predetermined light intensity emitted from the reference light source RLS, corresponds to the control information detection area on the transparent electrode Et1 2 → the photoconductive layer member PCL → Light modulation material layer member PML → Transparent electrode Et2 → Provided to photodetector PD via optical path of photodetector PD,
The imaging operation in the electromagnetic radiation information recording device shown in FIG. 1 is performed by operating the supply voltage control circuit VCA in the connection mode as shown in FIG. 1A first between the transparent electrodes Et1 and Et2. After the setting of an appropriate applied voltage to be supplied to the camera is performed, the imaging operation of the subject O is performed in a connection manner as shown in FIG. That is, when the imaging / recording operation mode is set for the operation unit OP in the electromagnetic radiation information recording apparatus of FIG. 1 to perform the imaging / recording operation, the control circuit is operated in accordance with the imaging / recording operation mode set for the operation unit OP. The CCT includes a first control operation for setting an appropriate applied voltage to be supplied between the transparent electrodes Et1 and Et2 in the supply voltage control circuit VCA, and a control operation for the transparent electrodes Et1 and Et2.
The second control operation for performing the imaging of the subject while the appropriate applied voltage is being supplied between Et2 is executed in series on the time axis. When the control circuit CCT performs the above-described first control operation, the electromagnetic radiation information recording apparatus of FIG. 1 sets the movable contact v of the changeover switch SW1 to the fixed contact as shown in FIG. Switch to the P side and turn on switch SW2.
An operating power is supplied to the reference light source RLS, and a control signal is supplied to the supply voltage control circuit VCA so that an appropriate applied voltage to be supplied between the transparent electrodes Et1 and Et2 can be set. . Thereby, the light source RL of the reference light
The reference light having a predetermined light intensity emitted from S corresponds to the portion 2 corresponding to the control information detection area in the transparent electrode Et1 → the photoconductive layer member PCL → the light modulation material layer member PM
L → transparent electrode Et2 → applied to the photodetector PD via the optical path of the photodetector PD. In the photodetector PD, an output signal corresponding to the amount of reference light incident thereon is used as a control signal as a supply voltage control circuit VCA. (For example, the configuration may be as shown in FIG. 3), the magnitude of the supply voltage control circuit VCA is controlled in accordance with the control signal output from the photodetector PD. Output voltage is output from output terminals a and b, and output terminal a → switch SW
1 movable contact v → the same fixed contact P → the circuit of the part 2 corresponding to the control information detection area in the transparent electrode Et1, and the circuit of the output terminal b → the transparent electrode Et2.
Supply between Et2.

The supply voltage control circuit V illustrated in FIG.
In CA, input / output terminals a to e shown in FIG.
Correspond to the input / output terminals a to e in the supply voltage control circuit VCA shown in FIG. When the control circuit CCT is performing the first control operation described above, the movable contact v of the changeover switches SW3 and SW4 is changed to the fixed contact P side by the changeover control signal supplied from the control circuit CCT via the input terminal d. When the control circuit CCT performs the above-described second control operation, the movable contact v of the changeover switches SW3 and SW4 is changed by the switching control signal supplied from the control circuit CCT via the input terminal d. Is switched to the fixed contact T side. The supply voltage control circuit VCA illustrated in FIG. 3 is adapted to supply the voltage between the transparent electrodes Et1 and Et2 when the control circuit CCT performs the first control operation described above, that is, when the supply voltage control circuit VCA supplies the voltage between the transparent electrodes Et1 and Et2. 3 shows a state in which a setting operation of an appropriate applied voltage is performed. When the control circuit CCT starts the first control operation, the movable contact v of the changeover switches SW3 and SW4 in the supply voltage control circuit VCA is switched to the fixed contact P side. C
The counter 4 is reset by supplying a reset signal from the CT via the input terminal e. The counter 4 counts pulses to be counted supplied from the pulse generator 3 via the fixed contact P and the movable contact v of the changeover switch SW3, supplies the counted value to the latch circuit 5, and supplies the count value to the changeover switch SW3. To the digital-to-analog converter 7 via the fixed contact P and the movable contact v. The digital-to-analog converter 7 converts the count value supplied thereto into an analog signal and supplies the analog signal to the amplifier 8. The output signal from the amplifier 8 is sent to output terminals a and b and the transparent electrodes Et1 and Et2. Supplied to

On the other hand, the reference light radiated from the light source RLS of the reference light and having a predetermined light intensity corresponds to the control information detection area in the transparent electrode Et1 2 → the photoconductive layer member PCL → the light modulating material Layer member PML → Transparent electrode Et2 →
The output signal Vrx output from the photodetector PD given via the optical path of the photodetector PD is supplied to the matching circuit 6 in the supply voltage control circuit VCA via the switch SW2 and the input terminal c. The coincidence circuit 6 outputs an output signal Vc when the reference voltage Vs and the signal Vrx coincide with each other, supplies the output signal Vc as a latch pulse to the latch circuit 5, and latches the count value of the counter 4 at that time. And the output signal Vc
Is also supplied to the control circuit CCT via the output terminal f.
The control circuit CCT generates a switching control signal based on the signal Vc supplied thereto, and supplies the switching control signal to the switching switches SW1, SW3, SW4, and the switch SW1, whereby the switching switches SW1, SW3, SW4
Is switched from the fixed contact P side to the fixed contact T side, the switch SW1 is turned off, and the supply of operating power to the reference light source RLS is stopped. Thereby, the electromagnetic radiation information recording apparatus of FIG. 1 changes from the operation in the connection mode shown in FIG. 1A to the operation in the connection mode shown in FIG. 1B, that is, the control circuit CCT. In the second control operation, the imaging operation for the subject is performed in a state where an appropriate applied voltage is supplied between the transparent electrodes Et1 and Et2, and the count value stored in the latch circuit 5 is stored. Is supplied to the digital-to-analog converter 7 via the fixed contact T and the movable contact v of the changeover switch SW3. The digital-to-analog converter 7 converts the count value supplied thereto into an analog signal and outputs the analog signal to the amplifier 8. And output signals from the amplifier 8 are output terminals a and b.
And supplied to the transparent electrodes Et1 and Et2.

As described above, in the electromagnetic radiation information recording apparatus shown in FIG. 1, by the connection mode shown in FIG. 1A, the appropriate voltage to be supplied between the transparent electrodes Et1 and Et2 by the supply voltage control circuit VCA. With the operation for setting the voltage and the connection mode as shown in FIG. 1B, the imaging of the subject is performed in a state where an appropriate applied voltage is supplied between the transparent electrodes Et1 and Et2. Is performed in series on the time axis, but setting of an appropriate applied voltage to be supplied between the transparent electrodes Et1 and Et2 performed by the supply voltage control circuit VCA is performed. The operation is as described above with reference to FIG. 3, but the transparent electrodes Et1 and Et1 performed by the supply voltage control circuit VCA described above are used.
The reference voltage Vs required for setting an appropriate applied voltage to be supplied between Et2 is determined as follows. That is, during the setting operation of the appropriate applied voltage to be supplied between the transparent electrodes Et1 and Et2 performed by the supply voltage control circuit VCA, the reference light having the predetermined light intensity emitted from the reference light source RLS is emitted. 2 corresponds to the control information detection area in the transparent electrode Et1 → photoconductive layer member P
CL → light modulating material layer member PML → transparent electrode Et2 → output signal Vrx output from photodetector PD given via the optical path of photodetector PD as shown in FIG. 4 (b). At the same time as the reference voltage Vs, the transparent electrode Et
When the applied voltage between 1 and Et2 is the appropriate applied voltage Vr {(a) in FIG.
The reference voltage Vs is determined so as to be the electrode voltage Vr} shown on the vertical axis.

Then, the count value stored in the latch circuit 5 as described above is supplied to the digital-to-analog converter 7 via the fixed contact T and the movable contact v of the changeover switch SW3. In step 7, the count value is converted into an analog signal, amplified by the amplifier 8, output from the output terminals a and b of the supply voltage control circuit VCA, and supplied to the transparent electrodes Et1 and Et2. , Et2, and a portion 1 corresponding to the recording area of the transparent electrode Et1 where light from the subject 0 is imaged by the imaging lens L, and the transparent electrode Et2. A good imaging operation can be performed in the state where the appropriate applied voltage is supplied as described above.

In the above-described electromagnetic radiation information recording apparatus shown in FIG. 1, the transparent electrode E is exposed prior to the exposure of the object O with the optical image.
In order to obtain an appropriate applied voltage to be applied between t1 and Et2, at least one of the transparent electrodes Et1 and Et2 is divided into a portion corresponding to a recording area,
A portion corresponding to the control information detection area is provided so that the voltage is applied to each of the portions in series on the time axis. The embodiment of the radiation information recording apparatus includes a transparent electrode Et.
An optical shutter PS is opened so that an exposure with a predetermined exposure amount is performed in a state where no voltage is applied between 1 and Et2, and an optical image of the subject O is captured on the photoconductor layer member PCL by the imaging lens L. After forming an image, the optical shutter PS is closed, and in this state, the range from the maximum value to the minimum value of the amount of exposure given by the above-described exposure operation is the light modulating material layer of the above-described constituent part. A predetermined value is set after the optical shutter PS is closed so that a state is set to a predetermined portion on a characteristic curve indicating a relationship between the applied voltage and the light transmittance of the member. In accordance with the detection result of the light intensity of the reference light transmitted through the light modulation material layer member PML in the component portion including the photoconductive layer member PCL and the light modulation material layer member PML to which the reference light having the high intensity is given. This is an electromagnetic radiation information recording apparatus that automatically controls the voltage between the electrodes Et1 and Et2. Unlike the electromagnetic radiation information recording apparatus described with reference to FIG. 1, the transparent electrodes Et1 and Et2 are not divided. .

In the embodiment of the electromagnetic radiation information recording apparatus of the present invention shown in FIG. 5, when the imaging and recording operation mode is set for the operation unit OP in order to perform the imaging and recording operation, the above-described operation is performed. The control circuit CCT determines the opening time of the optical shutter based on the result of detecting the brightness of the subject by a sensor (not shown) according to the imaging / recording operation mode set in the unit OP, and FIG. (No voltage is applied between the transparent electrodes Et1 and Et2 in a state where no voltage is applied between the transparent electrodes Et1 and Et2 as described above.) Good), the optical shutter is opened and exposed so that a predetermined exposure is performed by the electromagnetic radiation targeted for recording on the above-described components, and the recording area is exposed at a predetermined exposure amount. Controlled and to open the optical shutter PS as is performed, the photoconductive layer member P
An optical image of the subject O is formed on the CL by the imaging lens L.
Thereby, the optical image information of the subject O is recorded on the photoconductive layer member PCL by the electron-hole pairs corresponding to the optical image of the subject O. Next, the control circuit CCT controls the optical shutter PS to be closed as shown in FIG. 5B, and controls the reference light so that the reference light is emitted from the reference light source RLS. The operating power is supplied to the light source RLS, and the transparent electrodes Et1, E2 are supplied to the supply voltage control circuit VC.
A control signal is provided for enabling appropriate setting of the applied voltage to be supplied during t2.

Thus, the reference light having a predetermined light intensity emitted from the reference light source RLS is converted from the transparent electrode Et1 → the photoconductive layer member PCL → the light modulation material layer member PML →
Transparent electrode Et2 → Photodetector P via optical path of photodetector PD
D, the photodetector PD supplies an output signal corresponding to the amount of reference light incident thereon to the supply voltage control circuit VC as a control signal, and the supply voltage control circuit VC outputs the output signal from the photodetector PD. An output voltage whose magnitude is controlled in accordance with the control signal is supplied between the transparent electrodes Et1 and Et2. The output voltage from the supply voltage control circuit VC has a range of a voltage value applied to the light modulating material layer member PML by being applied between the transparent electrodes Et1 and Et2.
The range of the voltage applied to the light modulating material layer member PML when the light in the region between the white and black of the subject O is given to the photoconductive layer member PCL and the light modulating material layer member PML. A reference light having a predetermined light intensity so as to be inside is provided to the photoconductive layer member PCL and the light modulation material layer member PML, and the above-described photoconductive layer member PCL and light modulation material layer member P are provided.
In response to the detection result of the light intensity of the reference light transmitted through the light modulation material layer member PML in the component portion including
The range of the voltage value applied between both ends of the modulation material layer member PML corresponding to the black portion to the white portion in the optical image from FIG. 7 is the range of the voltage value indicated by Vb to Vw on the horizontal axis in FIG. Is set by the supply voltage control circuit VC so as to be supplied between the transparent electrodes Et1 and Et2. As the light modulating material layer member used in the implementation of the electromagnetic radiation information recording device of the present invention, a polymer-liquid crystal composite film, PLZT, or the like is preferably used. Needless to say, other than these can be used. The recording medium may be in any form such as a disk, a film, a card, and a tape.

[0023]

As is apparent from the above description, the electromagnetic radiation information recording apparatus of the present invention comprises at least a photoconductive layer member and a light modulating material layer between a first electrode and a second electrode. A predetermined strength in a control information detection area formed by dividing at least one of the first and second electrodes into a plurality of portions in a component portion configured to include a member. The control information detection electromagnetic radiation flux is incident, and the first and
The light modulating material layer member in the component portion including the second electrode, the photoconductive layer member, and the light modulating material layer member in a state where the voltage applied between the first and second electrodes is changed. Based on the detection result of the light intensity of the reference light transmitted through
The first and the first such that an appropriate recording state can be obtained with the photoconductive layer member.
A second electrode voltage value is set as a recording electrode voltage, and then the recording electrode voltage is set between the first and second electrodes in a region where the electromagnetic radiation flux to be recorded is incident. The recording operation is performed while the recording electrode voltage is supplied, and at least a photoconductive layer member and a light modulating material layer member are provided between the first electrode and the second electrode. In the state where a voltage in a range that does not cause a change in the state of the light modulating material layer member is supplied between the first and second electrodes in the component, the recording is performed on the component. An optical shutter is opened and exposed so that a predetermined exposure is performed by electromagnetic radiation, and after the optical shutter is closed as described above, a component including a photoconductive layer member and a light modulating material layer member is exposed. Provides a reference light of a predetermined intensity Te, according to the detection result of the light intensity of the reference light described above that has passed through the light modulating material layer member, the first, second
By automatically controlling the voltage between the electrodes, the range from the white part to the black part of the subject given by the above-described exposure operation is the applied voltage and light transmittance of the light modulating material layer member of the above-mentioned constituent part. Is set to a predetermined portion on the characteristic curve indicating the relationship between the transparent electrodes Et1 and Et2 by the reference light during the imaging operation period of the optical image of the subject. By arranging in series on the time axis a period during which an appropriate applied voltage to be supplied is set, and performing an operation in each period, the already proposed electromagnetic wave described above is achieved. The problem in the radiation information recording apparatus, that is, the recording portion is configured to include at least the photoconductive layer member and the light modulating material layer member between the first electrode and the second electrode. Being targeted Since the exposure operation using the electromagnetic radiation and the irradiation of the reference light emitted from the reference light source RLS are performed at the same time, the information to be recorded cannot be accurately recorded, All problems such as inaccurate detection results can be solved satisfactorily.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electromagnetic radiation information recording device of the present invention.

FIG. 2 is a diagram showing a part of the components of the electromagnetic radiation information recording apparatus of the present invention.

FIG. 3 is a diagram showing a part of the components of the electromagnetic radiation information recording apparatus of the present invention.

FIG. 4 is a characteristic example diagram for explaining the operation of the electromagnetic radiation information recording apparatus of the present invention.

FIG. 5 is a block diagram of the electromagnetic radiation information recording device of the present invention.

FIG. 6 is a diagram for explaining the operation of a conventional electromagnetic radiation information recording apparatus.

FIG. 7 is a characteristic curve diagram of applied voltage versus light transmittance of the light modulation material layer member.

[Explanation of symbols]

O: subject, L: imaging lens, Et1, Et2: transparent electrode,
PCL: Photoconductive layer member, PML: Light modulation material layer member, RL
S: Reference light source, PD: Photodetector, VC, VCA: Supply voltage control circuit, PS: Optical shutter, CCT: Control circuit, SW1, SW3, SW4: Changeover switch, SW2 ...
Switch, 1, 1a to 1d: portion corresponding to recording area in transparent electrode Et1, 2, 2a to 2d: transparent electrode E
Control information detection area at t1, 3 ... pulse generator, 4 ...
Counter, 5 Latch circuit, 6 Match circuit, 7 Digital-to-analog converter, 8 Amplifier, Vs Reference voltage

Continued on the front page (72) Inventor Masato Furuya 3-12-12 Moriyacho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture Within (72) Inventor Takehisa Koyama 3-12-12 Moriyacho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture Japan Victor Company Stock Inside the company (72) The inventor Yuji Uchiyama 3-12-12 Moriyacho, Kanagawa-ku, Yokohama-shi, Kanagawa Japan Victor Company of Japan, Ltd. (56) References JP-A-2-222924 (JP, A) JP-A-4-211221 (JP , A)

Claims (2)

(57) [Claims] 1. A component comprising at least a photoconductive layer member and a light modulating material layer member between a first electrode and a second electrode; and the first and second electrodes described above. Means for supplying a predetermined voltage therebetween, and the electromagnetic radiation flux to be recorded is made incident on the photoconductive layer member, and is recorded on the light modulation material layer member. When recording electromagnetic radiation information, a control information detection area having a predetermined intensity in a control information detection area formed by dividing at least one of the first and second electrodes into a plurality of portions. Means for causing the electromagnetic radiation flux to enter and for causing the electromagnetic radiation flux to be recorded to enter an area other than the control information detection area, and a first and second electrodes and light in the control information detection area Conductive layer material and Detection of the light intensity of the reference light transmitted through the light modulating material layer member in the above-mentioned constituent part in a state where the voltage applied between the first and second electrodes in the constituent part including the light modulating material layer member is changed. Means for setting the first and second electrode voltage values such that an appropriate recording state can be obtained in the photoconductive layer member as a recording electrode voltage based on the result, and the recording electrode voltage as a recording target. Means for performing a recording operation in a state where the recording medium is supplied between the first and second electrodes in a region where the incident electromagnetic radiation flux is incident. 2. A component comprising at least a photoconductive layer member and a light modulating material layer member between a first electrode and a second electrode; and the first and second electrodes described above. Means for supplying a predetermined voltage therebetween, and the electromagnetic radiation flux to be recorded is made incident on the photoconductive layer member, and is recorded on the light modulation material layer member. In the case where the electromagnetic radiation information is recorded, in the state where the voltage between the first and second electrodes in the above-mentioned constituent part is set to a voltage in a range that does not cause a change in the state of the light modulation material layer member, the above-described structure is used. A means for opening and exposing an optical shutter so that a predetermined exposure is performed by electromagnetic radiation which is to be recorded on the portion, and from a white portion to a black portion of the subject given by the above-described exposure operation Is within the range described above. The above-described optical shutter is closed so that a state is set to a predetermined portion on a characteristic curve showing the relationship between the applied voltage and the light transmittance in the light modulation material layer member of the component. According to the detection result of the light intensity of the reference light transmitted through the light modulating material layer member in the component including the photoconductive layer member and the light modulating material layer member to which the reference light having a predetermined intensity is given after the 1st, 2nd
An electromagnetic radiation information recording apparatus for automatically controlling the voltage between the electrodes.