Patent US3732007A successfully refreshed from Google Patents.
US3732007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for instant recording of light images while observing said light images
Assignee: Minolta Co Ltd
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Filing: 1969-02-25
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Granted: 1973-05-08
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Expires: 1989-02-25
Abstract
Abstract The present invention relates to a method and a device for instant recording of light images while observing said light images which makes use of a three layer photosensitive plate having photopermeability and serving as a rear screen so as to enable projected light images to be visible, and composed of a high insulating layer, a photosensitive layer having the P.I.P. character, and a conductive layer; the exposure for uniformly irradiating the overall surface of the photosensitive plate is given from one face thereof and simultaneously the voltage of an optional polarity is impressed on the photosensitive plate to give an overall uniform charge thereto, and light images are irradiated onto the photosensitive plate and thus, while observing the light images effected on the rear screen, the voltage of opposite polarity to said polarity is impressed at any time desired to give the exposure of light images and thereby recording of light images is effected onto said photosensitive plate.
Inventors
- 👤 T Kushima
- 👤 S Tanaka
- 👤 K Seino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:12
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/056; G03G5/00; G03G5/02; G03G5/024
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
182 words
A method for instant recording of light images while observing said light images, comprising a pre-charging process for applying a corona discharge device having a transparent corona shield to a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photosemiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a conductive layer provided as a rear screen by providing a diffusing surface in parallel on the back of the surface of said photoconductive plate for receiving the light image irradiation, so as to give a uniform charge of an optional polarity to said high insulating layer of said photosensitive plate, the process further comprising irradiating light images formed by a light image forming member onto said photosensitive plate, using its diffusing surface as a back, and giving the charge of the opposite polarity to said polarity by means of said corona discharge device while observing the light images from the back of said photosensitive plate and said corona discharge device, and thereby giving the exposure of light images to said photosensitive plate.
Claim 2
Independent Claim
182 words
A method for instant recording of light images while observing said light images, comprising a pre-charging process for applying a corona discharge device having a transparent corona shield to a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photosemiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a conductive layer provided as a rear screen by providing a diffusing surface in parallel on the back of the surface of said photoconductive plate for receiving the light image irradiation, so as to give a uniform charge of an optional polarity to said high insulating layer of said photosensitive plate, the process further comprising irradiating light images formed by a light image forming member onto said photosensitive plate, using its diffusing surface as a back, and giving the charge of the opposite polarity to said polarity by means of said corona discharge device while observing the light images from the back of said photosensitive plate and said corona discharge device, and thereby giving the exposure of light images to said photosensitive plate.
Claim 3
Dependent Claim
157 words
A method for instant recording of light images while observing said light rays as claimed in claim 1, wherein said photosensitive layer of said photosensitive plate has a color sensitivity characteristic, one of said conductive layer and said high insulating layer being located on the back of the light image irradiation side of said photosensitive layer, a filter having a spectrum permeability characteristic being provided in parallel with said one of said conductive and high insulating layers, said spectrum permeability being characterized by its ability to absorb light rays within the spectral sensitivity wave length range of the spectral sensitivity property due to the color sensitivity in said photosensitive layer and having the permeability for light rays within the remainder of the spectral wave length range, and whereby light rays incident from the light image observing side exert no effect on said photosensitive layer in the process for giving the light image exposure to said photosensitive plate.
Claim 4
Dependent Claim
54 words
A method for instant recording of light images while observing said light images claimed in claim 1, wherein said high insulating layer of said photosensitive plate is transparent and faces the light image irradiation side and is composed of a three-layer photosensitive plate having a light ray, the photosensitive layer of which is translucent.
Claim 5
Dependent Claim
135 words
A method for instant recording of light images while observing said light images claimed in claim 3, wherein said translucent photosensitive layer of said photosensitive plate has the color sensitivity, and the conductive layer not facing the light image irradiation side of said photosensitive plate has a spectrum transmission property, and said spectrum transmission property is characterized by its ability to absorb light rays within the spectral sensitivity wave length range of the spectral sensitivity property in said photosensitive layer and having the permeability for light rays within the remainder of the spectral wave length range, whereby light rays incident from the light image observing side exert no effect on said photosensitive layer in the process for giving the light image exposure to said photosensitive plate, when observing light images from said conductive layer side.
Claim 6
Dependent Claim
50 words
A method for instant recording of light images while observing said light images claimed in claim 1, wherein said high insulating layer of said photosensitive plate faces the light image irradiation side and said conductive layer on the back of the photosensitive layer is semi-transparent and forms a rear screen.
Claim 7
Dependent Claim
197 words
A method for instant recording of light images while observing said light images claimed in claim 5, wherein said photosensitive plate is composed of a transparent high insulating layer facing the light image irradiation side, a photosensitive layer of a photo-semiconductor having the internal polarization character which has the color sensitivity, and a semi-transparent conductive layer provided on the back thereof; and one of said photosensitive layer, said semi-transparent conductive layer, and a filter provided in parallel therewith having the spectrum transmission property; being characterized in that said spectrum transmission property absorbs light rays within the spectral sensitivity wave length range of said photosensitive layer and has the permeability for light rays within the remainder of the spectral wave length range, and irradiates light images onto said photosensitive plate to enable them to be observed from the back of said photosensitive plate; and when applying the light image exposure process by giving the charge of the opposite polarity to the polarity at the time of the precharge process to said photosensitive plate while observing light images, light rays incident from the light image observing side to said photosensitive plate exerts no effect on the light image exposure.
Claim 8
Dependent Claim
182 words
A method for instant recording of light images while observing said light images claimed in claim 1, wherein said semi-transparent photosensitive layer has a color sensitivity characteristic, and one of said photosensitive layer, said high insulating layer which is provided on the back of the light image irradiation side of said photosensitive plate, said conductive layer, and a filter provided in parallel on the back of said photosensitive plate, has a spectrum transmission property characteristic; and wherein said spectrum transmission property absorbs light rays within the spectral sensitivity wave length range and allows light rays to pass within the remainder of the spectral wave length range, and irradiates light images onto said photosensitive plate to enable them to be observed from the back of said photosensitive plate, and, when applying the light image exposure process by giving the charge of the opposite polarity to the polarity at the time of the pre-charge process to said photosensitive plate while observing light images, light rays incident from the light image observing side to said photosensitive plate exert no effect on the light image exposure.
Claim 9
Dependent Claim
58 words
A method for instant recording of light images while observing said light images claimed in claim 1, wherein said transparent conductive layer of said photosensitive plate faces the light image irradiation side, and one of said photosensitive layer and said high insulating layer is made translucent to turn said photosensitive plate in a rear screen having the photo-permeability.
Claim 10
Dependent Claim
165 words
A method for instant recording of light imaGes while observing said light images claimed in claim 8, wherein said photosensitive layer has a color sensitivity characteristic, and one of said photosensitive layer, said high insulating layer, and a film provided in parallel on the back of said photosensitive plate, has a spectrum transmission property; and wherein said spectrum transmission property absorbs light rays within the spectral sensitivity wave length range of said photosensitivity layer and allows light rays to pass within the remainder of the spectral wave length range, and irradiates light images onto said photosensitive plate to enable them to be observed from the back of said photosensitive plate, and when applying the light image exposure process by giving the charge of the opposite polarity to the polarity at the time of the pre-charge process to the photosensitive plate while observing light images, light rays incident from the light image observing side to said photosensitive plate exert no effect on the light image exposure.
Claim 11
Independent Claim
189 words
A method for instant recording of light images while observing said light images, comprising a pre-charge process for applying a corona discharge device having a transparent corona shield to a photosensitive plate using its diffusing surface as the back, said photosensitive plate being composed of a transparent photo-semiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a transparent conductive layer serving as a rear screen by providing a diffusing surface in parallel on the back of the surface of said photoconductive plate for receiving the light image irradiation, so as to give a uniform charge to said high insulating layer of said photosensitive plate; the process further comprising irradiating light images formed by a light image forming member onto said photosensitive plate, using its diffusing surface as the back, and giving the charge of the opposite polarity to said polarity at the time of said pre-charge process by means of said corona discharge device while observing the light images from the back of said photosensitive plate and said corona discharge device, and thereby giving the exposure of light images to said photosensitive plate.
Claim 12
Independent Claim
189 words
A method for instant recording of light images while observing said light images, comprising a pre-charge process for applying a corona discharge device having a transparent corona shield to a photosensitive plate using its diffusing surface as the back, said photosensitive plate being composed of a transparent photo-semiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a transparent conductive layer serving as a rear screen by providing a diffusing surface in parallel on the back of the surface of said photoconductive plate for receiving the light image irradiation, so as to give a uniform charge to said high insulating layer of said photosensitive plate; the process further comprising irradiating light images formed by a light image forming member onto said photosensitive plate, using its diffusing surface as the back, and giving the charge of the opposite polarity to said polarity at the time of said pre-charge process by means of said corona discharge device while observing the light images from the back of said photosensitive plate and said corona discharge device, and thereby giving the exposure of light images to said photosensitive plate.
Claim 13
Dependent Claim
170 words
A method for instant recording of light images while observing said light images claimed in claim 10, wherein said photosensitive layer has a color sensitivity characteristic, and one of said photosensitive layer, said high insulating layer and said conductive layer facing the diffusing surface, and a filter provided in parallel on the diffusing surface has a spectrum transmission property, and wherein said spectrum transmission property absorbs light rays within the spectral sensitivity wave length range of said photosensitive layer and has the transmission property for light rays within the remainder of the spectral wave length range, and irradiates light images onto said photosensitive plate to enable them to be observed from the diffusing surface, and when applying the light image exposure process by giving the charge of the opposite polarity to the polarity at the time of the pre-charge process to the photosensitive plate during the light image irradiation, light rays incident from the light image observing side to said photosensitive plate exert no effect on the light image exposure.
Claim 14
Independent Claim
210 words
A method for instant recording of light images while observing said light images, comprising a pre-charge process for providing a corona discharge device having a transport corona shield to a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photosemiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a conductive layer serving as a rear screen having a light ray permeability characteristic; for giving the overall irradiation to said photosensitive plate by means of a subsidiary light source device and simultaneously giving the charge of an optional polarity by means of said corona dischArge device so as to effect the exposure for giving the uniform charge to said high insulating layer of said photosensitive plate; the process further comprising stopping the overall irradiation for said photosensitive plate effected by the subsidiary light source device and irradiating light images from the same side of the photosensitive plate onto said photosensitive plate, and giving the charge of the opposite polarity to said polarity at the time of said pre-charge process by means of said corona discharge device while observing the light images from the back of said photosensitive plate, and thereby giving the exposure of light images to said photosensitive plate.
Claim 15
Independent Claim
210 words
A method for instant recording of light images while observing said light images, comprising a pre-charge process for providing a corona discharge device having a transport corona shield to a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photosemiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a conductive layer serving as a rear screen having a light ray permeability characteristic; for giving the overall irradiation to said photosensitive plate by means of a subsidiary light source device and simultaneously giving the charge of an optional polarity by means of said corona dischArge device so as to effect the exposure for giving the uniform charge to said high insulating layer of said photosensitive plate; the process further comprising stopping the overall irradiation for said photosensitive plate effected by the subsidiary light source device and irradiating light images from the same side of the photosensitive plate onto said photosensitive plate, and giving the charge of the opposite polarity to said polarity at the time of said pre-charge process by means of said corona discharge device while observing the light images from the back of said photosensitive plate, and thereby giving the exposure of light images to said photosensitive plate.
Claim 16
Independent Claim
328 words
A method for instant recording of light images while observing said light images, comprising a pre-charge process for providing a corona discharge device having a transparent corona shield to a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photosemiconductor having a spectral sensitivity characteristic for producing persistent internal polarization by the light ray irradiation within the specific wave length range, and a conductive layer, serving as a rear screen by providing a diffusing surface in parallel on the back of the surface of said photoconductive plate for receiving the light image irradiation so as to give a uniform charge of an optional polarity to said high insulating layer, said conductive layer having a light ray-permeability property, turning the spectrum transmission property of the high insulating layer on the back of the light ray irradiation side of one of said conductive layer or a filter provided in parallel therewith for absorbing light rays within the spectral sensitivity wave length range of said photosensitive layer and thereby allowing light rays to pass within the remainder of the wave length range; and for irradiating the subsidial light source device for irradiating light rays within the spectral wave length range approximate to the spectral sensitivity wave length character of said photosensitive layer and the light images at the same time onto said photosensitive plate, and at the same time giving the uniform charge of an optional polarity to said high insulating layer by means of said corona discharge device to effect the exposure, the process further including giving the charge of the opposite polarity to the polarity at the time of said pre-charge process while observing the light images from the back of said photosensitive plate and thereby giving the exposure of light images, whereby in the process for giving said exposure of light images, light rays incident from the light image observing side to said photosensitive plate exert no effect on the light image exposure.
Claim 17
Independent Claim
328 words
A method for instant recording of light images while observing said light images, comprising a pre-charge process for providing a corona discharge device having a transparent corona shield to a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photosemiconductor having a spectral sensitivity characteristic for producing persistent internal polarization by the light ray irradiation within the specific wave length range, and a conductive layer, serving as a rear screen by providing a diffusing surface in parallel on the back of the surface of said photoconductive plate for receiving the light image irradiation so as to give a uniform charge of an optional polarity to said high insulating layer, said conductive layer having a light ray-permeability property, turning the spectrum transmission property of the high insulating layer on the back of the light ray irradiation side of one of said conductive layer or a filter provided in parallel therewith for absorbing light rays within the spectral sensitivity wave length range of said photosensitive layer and thereby allowing light rays to pass within the remainder of the wave length range; and for irradiating the subsidial light source device for irradiating light rays within the spectral wave length range approximate to the spectral sensitivity wave length character of said photosensitive layer and the light images at the same time onto said photosensitive plate, and at the same time giving the uniform charge of an optional polarity to said high insulating layer by means of said corona discharge device to effect the exposure, the process further including giving the charge of the opposite polarity to the polarity at the time of said pre-charge process while observing the light images from the back of said photosensitive plate and thereby giving the exposure of light images, whereby in the process for giving said exposure of light images, light rays incident from the light image observing side to said photosensitive plate exert no effect on the light image exposure.
Claim 18
Independent Claim
109 words
A device for instant recording of light images while observing said light images, comprising a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photo-semiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a conductive layer, having a transparent corona shield and a ray diffusion characteristic, a corona discharge device facing said high insulating layer of said photosensitive plate and having a light ray permeability characteristic, a switch for changing over the polarity interposed between said corona discharge device and an electric power source, and a light image forming device for irradiating light images onto said photosensitive plate.
Claim 19
Independent Claim
109 words
A device for instant recording of light images while observing said light images, comprising a photosensitive plate composed of a high insulating layer, a photosensitive layer composed of a photo-semiconductor having the ability to produce a persistent internal polarization by light ray irradiation, and a conductive layer, having a transparent corona shield and a ray diffusion characteristic, a corona discharge device facing said high insulating layer of said photosensitive plate and having a light ray permeability characteristic, a switch for changing over the polarity interposed between said corona discharge device and an electric power source, and a light image forming device for irradiating light images onto said photosensitive plate.
Claim 20
Dependent Claim
36 words
A device for instant recording of light images while observing said light images claimed in claim 14, wherein the light image forming device is composed of a braun tube to form images on said photosensitive plate.
Claim 21
Dependent Claim
46 words
A device for instant recording of light images while observing said light images claimed in claim 14, wherein on the light image forming device side of said photosensitive plate a subsidiary light source device is provided for irradiating uniformly the overall surface of said photosensitivE plate.
Claim 22
Dependent Claim
114 words
A device for instant recording of light images while observing said light images claimed in claim 16, wherein said photosensitive layer of said photosensitive plate has a spectral sensitivity property for producing a persistent internal polarization by light rays within the specific wave length range, and wherein said subsidiary light source device irradiates light rays approximate to the spectral sensitivity property of said photosensitive layer, and the spectrum transmission property of the layer on the back of the photosensitive plate facing said subsidiary light source device absorbs light rays within the spectral sensitivity wave length range of said photosensitive plate and allows light rays to pass within the remainder of the wave length range.
Claim 23
Dependent Claim
116 words
A device for instant recording of light images while observing said light images claimed in claim 16, wherein said photosensitive layer of said photosensitive plate has a spectral sensitivity property for producing persistent internal polarization by light rays within a specific wave length range, said subsidiary light source device irradiates light rays approximate to the spectral sensitivity property of said photosensitive layer, and on the back of the photosensitive plate facing to said subsidiary light source device there is provided a filter, the spectrum transmission property of which absorbs light rays within the spectral sensitivity wave length range of said photosensitive plate and allows light rays to pass within the remainder of the wave length range.
Claim 24
Dependent Claim
23 words
A method for instant recording of light images while observing said light images claimed in claim 1, wherein said photosensitive layer is semi-transparent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |