Patent US3909112A successfully refreshed from Google Patents.
US3909112A
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Optical processing apparatus
Assignee: Hitachi Ltd
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Filing: 1972-10-16
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Granted: 1975-09-30
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Expires: 1992-10-16
Abstract
Abstract Coherent light from a laser light source is caused to illuminate a film on which a plurality of holograms are recorded. A reconstructing light beam from the film is caused to be incident on an optical information modulator. The phase or amplitude of the reconstructing light beam is modulated by the modulator. The modulated light beam emanating therefrom is further focused on a predetermined position of a photo-detector consisting of a plurality of photocells.
Inventors
- 👤 Masaru Matsumura
- 👤 Yoshikazu Miyamoto
- 👤 Yoshihiro Onishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:29
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/26; G06; G06V; G06V10/00; G06V10/88; G06V10/89; G06V10/893; G06V10/895
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
158 words
Optical processing apparatus comprising: a light source; storage means containing a plurality of pieces of optical information spacially distributed thereover, said light source and said storage means being so arranged as to simultaneously illuminate all of said plurality of pieces of information in said storage means; optical means, disposed to receive respective light beam portions passing through said storage means from said light source, for producing reconstructed images of said pieces of optical information at a prescribed spacial location; a single means disposed at said prescribed spacial location, for modulating the amplitude of the light of said reconstructed images of said pieces of optical information; an optical detector having a plurality of optical detecting elements; and means, disposed to receive the modulated reconstructed images of said pieces of optical information, for simultaneously focusing said modulated reconstructed images onto said optical detecting elements, thereby providing an output representative of the modulated reconstructed images of said pieces of optical information.
Claim 2
Dependent Claim
158 words
Optical processing apparatus comprising: a light source; storage means containing a plurality of pieces of optical information spacially distributed thereover, said light source and said storage means being so arranged as to simultaneously illuminate all of said plurality of pieces of information in said storage means; optical means, disposed to receive respective light beam portions passing through said storage means from said light source, for producing reconstructed images of said pieces of optical information at a prescribed spacial location; a single means disposed at said prescribed spacial location, for modulating the amplitude of the light of said reconstructed images of said pieces of optical information; an optical detector having a plurality of optical detecting elements; and means, disposed to receive the modulated reconstructed images of said pieces of optical information, for simultaneously focusing said modulated reconstructed images onto said optical detecting elements, thereby providing an output representative of the modulated reconstructed images of said pieces of optical information.
Claim 3
Dependent Claim
27 words
Optical processing apparatus according to claim 1, wherein said storage means includes a hologram medium containing a plurality of minute holograms representing said pieces of optical information.
Claim 4
Dependent Claim
27 words
Optical processing apparatus according to claim 1, wherein said storage means includes a hologram plate containing a plurality of minute holograms representing said pieces of optical information.
Claim 5
Dependent Claim
44 words
Optical processing apparatus according to claim 1, wherein said single modulating means is such that only a portion of the reconstructed images is transmitted through a part of said modulating means, said transmissive part being sequentially shiftable over the entirety of said modulating means.
Claim 6
Dependent Claim
18 words
Optical processing apparatus according to claim 4, wherein the amount of transmission of light is varied with time.
Claim 7
Dependent Claim
44 words
Optical processing apparatus according to claim 1, wherein said single modulating means is such that only a portion of the reconstructed images is reflected at a part of said modulating means, said reflective part being sequentially shiftable over the entirety of said modulating means.
Claim 8
Dependent Claim
18 words
Optical processing apparatus according to claim 6, wherein the amount of reflection of light is varied with time.
Claim 9
Dependent Claim
25 words
Optical processing apparatus according to claim 1, wherein said focusing means is such that said modulated reconstructed images are separately focused into said optical detector.
Claim 10
Dependent Claim
131 words
Optical processing apparatus comprising: a light source; storage means containing a plurality of pieces of said optical information spacially distributed thereover, said plurality of pieces of information being simultaneously illuminated by said light source; means, disposed at a prescribed spacial location where an image of each of said pieces of information is reconstructed by a respective light beam portion from said light source passing through said storage means, for individually spacially modulating the amplitudes of the reconstructed images of said pieces of optical information; a plurality of optical detectors; and means, disposed to receive the modulated reconstRucted images of said pieces of optical information, for focusing said modulated reconstructed images onto said plurality optical detectors, thereby providing an output representative of the modulated reconstructed images of said pieces of optical information.
Claim 11
Dependent Claim
131 words
Optical processing apparatus comprising: a light source; storage means containing a plurality of pieces of said optical information spacially distributed thereover, said plurality of pieces of information being simultaneously illuminated by said light source; means, disposed at a prescribed spacial location where an image of each of said pieces of information is reconstructed by a respective light beam portion from said light source passing through said storage means, for individually spacially modulating the amplitudes of the reconstructed images of said pieces of optical information; a plurality of optical detectors; and means, disposed to receive the modulated reconstRucted images of said pieces of optical information, for focusing said modulated reconstructed images onto said plurality optical detectors, thereby providing an output representative of the modulated reconstructed images of said pieces of optical information.
Claim 12
Dependent Claim
27 words
Optical processing apparatus according to claim 9, wherein said storage means includes a hologram plate containing a plurality of minute holograms representing said pieces of optical information.
Claim 13
Dependent Claim
43 words
Optical processing apparatus according to claim 9, wherein said modulating means is such that only a portion of the reconstructed images is transmitted through a part of said modulating means, said transmissive part being sequentially shiftable over the entirety of said modulating means.
Claim 14
Dependent Claim
18 words
Optical processing apparatus according to claim 11, wherein the amount of transmission of light is varied with time.
Claim 15
Dependent Claim
43 words
Optical processing apparatus according to claim 9, wherein said modulating means is such that only a portion of the reconstructed images is reflected at a part of said modulating means, said reflective part being sequentially shiftable over the entirety of said modulating means.
Claim 16
Dependent Claim
18 words
Optical processing apparatus according to claim 13, wherein the amount of reflection of light is varied with time.
Claim 17
Dependent Claim
26 words
Optical processing apparatus according to claim 9, wherein said focusing means is such that said modulated reconstructed images are separately focused into said plurality of detectors.
Claim 18
Dependent Claim
132 words
An optical processing apparatus comprising: a storage medium containing a plurality of pieces of optical information spacially distributed thereacross; first means for directing light onto said storage medium and for producing a respective plurality of reconstructed images of the information spacially distributed across said storage medium at a prescribed spacial position relative to said storage medium; second means, disposed at said prescribed spacial position, for spacially modulating the amplitudes of the respective reconstructed images produced thereat by said first means; photodetecting means having a plurality of photodetecting elements; and third means, disposed between said second means and said photodetecting means, for simultaneously focusing the reconstructed images modulated by said second means onto said photodetecting means, to produce therefrom an output representative of the modulated reconstructed images of said pieces of optical information.
Claim 19
Dependent Claim
132 words
An optical processing apparatus comprising: a storage medium containing a plurality of pieces of optical information spacially distributed thereacross; first means for directing light onto said storage medium and for producing a respective plurality of reconstructed images of the information spacially distributed across said storage medium at a prescribed spacial position relative to said storage medium; second means, disposed at said prescribed spacial position, for spacially modulating the amplitudes of the respective reconstructed images produced thereat by said first means; photodetecting means having a plurality of photodetecting elements; and third means, disposed between said second means and said photodetecting means, for simultaneously focusing the reconstructed images modulated by said second means onto said photodetecting means, to produce therefrom an output representative of the modulated reconstructed images of said pieces of optical information.
Claim 20
Dependent Claim
29 words
Optical processing apparatus according to claim 16, wherein said storage medium comprises a hologram medium containing a plurality of minute holograms representing said pieces of optical information distributed thereacross.
Claim 21
Dependent Claim
153 words
Optical processing apparatus comprising: a recording medium in which a plurality of pieces of standard information are recorded; a light source producing light for simultaneously illuminating said plurality of pieces of standard information; a single means, disposed at a location where reconstructed images of said plurality of pieces of standard information are formed by said simultaneous illumination from said light source, for modulating the spacial distribution of the amplitudes of said reconstructed images with unknown information, thereby obtaining a coincidence output between said reconstructed images and said unknown information; means for focusing said modulated reconstructed images; a plurality of means, disposed at a location where said modulated reconstructed images are to be focused, for detecting said focused, modulated, reconstructed images; and means for comparing the amplitudes of the outputs from said plurality of detecting means with each other, thereby discriminating with which of said pieces of standard information of said unknown information corresponds.
Claim 22
Dependent Claim
153 words
Optical processing apparatus comprising: a recording medium in which a plurality of pieces of standard information are recorded; a light source producing light for simultaneously illuminating said plurality of pieces of standard information; a single means, disposed at a location where reconstructed images of said plurality of pieces of standard information are formed by said simultaneous illumination from said light source, for modulating the spacial distribution of the amplitudes of said reconstructed images with unknown information, thereby obtaining a coincidence output between said reconstructed images and said unknown information; means for focusing said modulated reconstructed images; a plurality of means, disposed at a location where said modulated reconstructed images are to be focused, for detecting said focused, modulated, reconstructed images; and means for comparing the amplitudes of the outputs from said plurality of detecting means with each other, thereby discriminating with which of said pieces of standard information of said unknown information corresponds.
Claim 23
Dependent Claim
37 words
Optical processing apparatus according to claim 18, wherein the apparatus further comprises optical means for focusing said reconstructed images on said single modulating means, said opTical means located between said record medium and said single modulating means.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |