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US3825317A
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US
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Application of a novel photosensitive member to hologram
Assignee: Canon Inc
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Filing: 1972-07-27
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Granted: 1974-07-23
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Expires: 1992-07-27
Abstract
Abstract A hologram comprises an interference pattern composed of a mutual diffusion portion of a photoconductor and a metal formed at an exposed portion of a photosensitive member, the photosensitive member containing two constituting elements, that is, a photosensitive receptor containing a photoconductor and a photosensitive intensifier capable of diffusing into the photoconductor when irradiated and at least one of the constituting elements being in a layer form, and the combination of the constituting elements being selected from the group consisting of (i) each of the two constituting elements being in a form of layer, (ii) one constituting element being in a form of layer and the other constituting element being dispersed in said layer, and (iii) one constituting element being in a form of layer and the other constituting element being contacted with the surface of said layer.
Inventors
- 👤 E Inoue
- 👤 J Tsujiunchi
- 👤 H Kokado
- 👤 Y Tokunaga
- 👤 H Sakuma
- 👤 H Hanada
- 👤 T Yamaguchi
- 👤 I Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:08
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/705; G03H; G03H1/00; G03H1/02; G03H1/024; G03H1/0244; G03H2001/0208; G03H2001/0212; G03H2001/026; G03H2001/0264; G03H1/04; G03H1/0486; G03H2001/0491; G03H2240/00; G03H2240/20; G03H2240/21; G03H2250/00; G03H2250/12; G03H2260/00; G03H2260/30; G03H2260/35; G03H2260/36; G03H2260/50; G03H2260/63
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
34 words
A hologram according to claim 1 in which the irradiation of an interference pattern is carried out by exposure to an original pattern having an interference pattern capable of being used as a hologram.
Claim 2
Dependent Claim
13 words
A hologram according to claim 1 in which the chalcogen glass contains halogen.
Claim 3
Dependent Claim
143 words
A hologram prepared by irradiating an interference pattern containing recorded information on a photosensitive member having, as a photosensitive layer, a laminate of a photoconductive layer and a metal layer, the photoconductive layer being mainly composed of at least a photoconductive material selected from the group of chalcogen glass of glass material containing a sulfur family element (S, Se, Te), organic photoconductive materials, metal halides, metal sulfides, metal selenide, metal telluride, and metal oxide and the metal layer being mainly composed of metal which diffuses into the photoconductive layer when exposed to light radiation and by causing the diffusion of metal in the photoconductive layer at the exposed portion of the photosensitive member and thereafter by removing at least one of the metal layer and the photoconductive layer which do not contribute to the formation of the diffused portion to form a relief.
Claim 4
Dependent Claim
127 words
A hologram prepared by irradiating an interference pattern containing recorded information on a photosensitive member having, as a photosensitive layer, a laminate of a photoconductive layer and a metal layer, the photoconductive layer being mainly composed of at least a photoconductive material selected from the group of chalcogen glass of glassy material containing a sulfur family element (S, Se, Te), organic photoconductive materials, metal halides, metal sulfides, metal selenide, metal telluride, and metal oxide and the metal layer being mainly composed of metal which diffuses into the photoconductive layer when exposed to light radiation and by causing the diffusion of metal in the photoconductive layer at the exposed portion of the photosensitive member and thereafter by removing the mutual diffusion portion thus prepared to form a relief.
Claim 5
Dependent Claim
34 words
A hologram according to claim 5 in which after removing the mutual diffusion portion, the metal at the unexposed portion is diffused in the photoconductive layer by exposing the whole surface to light irradiation.
Claim 6
Dependent Claim
21 words
A hologram according to claim 5 in which the metal layer is removed by dissolving after removing the mutual diffusion portion.
Claim 7
Dependent Claim
25 words
A hologram according to claim 5 in which the photoconductive layer at the unexposed portion is removed by dissolving after removing the mutual diffusion portion.
Claim 8
Dependent Claim
20 words
A hologram prepared by transferring the original relief of the hologram in claims 5 to a transfer member by press-transferring.
Claim 9
Dependent Claim
20 words
A hologram prepared by transferring the original relief of the hologram in claim 8 to a transferring member by press-transferring.
Claim 10
Dependent Claim
140 words
A hologram prepared by irradiating an interference pattern containing recorded information on a photosensitive member having, as a photosensitive layer, a laminate of a photoconductive layer and a metal layer, the photoconductive layer being mainly composed of at least a photoconductive material selected from the group of chalcogen glass of glassy material containing a sulfur family element (S, Se, Te), organic photoconductive materials, metal halides, metal sulfides, metal selenide, metal telluride, and metal oxide and the metal layer being mainly composed of metal which diffuses into the photoconductive layer when exposed to light radiation and by causing diffusion of metal in the photoconductive layer at the exposed portion of the photosensitive member and thereafter by removing the photosensitive layer at the unexposed portion and further etching the unexposed portion of the base supporting the photosensitive layer to form a relief.
Claim 11
Dependent Claim
25 words
A hologram according to claim 11 in which the mutual diffusion portion is removed after etching the surface of The base at the unexposed portion.
Claim 12
Dependent Claim
24 words
A hologram according to claim 11 in which a relief of the hologram in claim 11 is transferred to a transferring member by press-transferring.
Claim 13
Dependent Claim
24 words
A hologram according to claim 12 in which a relief of the hologram in claim 12 is transferred to a transferring member by press-transferring.
Claim 14
Dependent Claim
164 words
A hologram prepared by irradiating an interference pattern containing recorded information on a photosensitive member having, as a photosensitive layer, a laminate of a photoconductive layer and a metal layer, the photoconductive layer being mainly composed of at least a photoconductive material selected from the group of chalcogen glass of glassy material containing a sulfur family element (S, Se, Te), organic photoconductive materials, metal halides, metal sulfides, metal selenide, metal telluride, and metal oxide and the metal layer being mainly composed of metal which diffuses into the photoconductive layer when exposed to light radiation and by causing the diffusion of metal in the photoconductive layer at the exposed portion of the photosensitive member and thereafter by peeling off the exposed portion to expose the surface of the base supporting the photo-sensitive layer and by etching the exposed portion to form a relief and, if desired, by removing at least one of the metal layer and the photosensitive layer at the unexposed portion by dissolving.
Claim 15
Dependent Claim
22 words
A hologram according to claim 15 in which the formed relief of the hologram is transferred to a transferring member by press-transferring.
Claim 16
Dependent Claim
35 words
A hologram according to claim 15 in which the metal at the unexposed portion is diffused in the photoconductive layer by exposing the whole surface thereof to light irradiation after peeling off the exposed portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |