US3703660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photochromic fiber optic image storage device
Assignee: Corning Glass Works
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Filing: 1971-08-19
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Granted: 1972-11-21
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Expires: 1991-08-19
Abstract
Abstract Disclosed is a fiber optic image storage device of the type having a plurality of light-conducting optical fibers secured together in side-by-side relation so that corresponding opposite ends of the fibers cooperate to define first and second faces. Each of the fibers is characterized in that it comprises a glass core and a layer of photochromic glass formed upon the surface of the core. The layer of photochromic glass may function as a sheath having a refractive index substantially the same as that of the core, or it may have a refractive index lower than that of the core thereby forming with the core a light reflecting interface. The core may consist of a photochromic glass or a nonabsorbing glass.
Inventors
- 👤 Norman F Fyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:23
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/892; H01J29/02; H01J29/10; H01J29/14; G; G02; G02B; G02B6/00; G02B6/04; G02B6/06; G02B6/08; Y; Y10; Y10S; Y10S348/00; Y10S348/902
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
70 words
An image storage device comprising a plurality of light conducting fibers secured together in side-by-side relation to form a fiber optic plate, corresponding opposite ends of said fibers cooperating to define first and second end faces, each of said fibers comprising a glass core having a given refractive index and a layer of photochromic glass formed upon the surface of said core, and means for supporting said fiber optic plate.
Claim 2
Dependent Claim
70 words
An image storage device comprising a plurality of light conducting fibers secured together in side-by-side relation to form a fiber optic plate, corresponding opposite ends of said fibers cooperating to define first and second end faces, each of said fibers comprising a glass core having a given refractive index and a layer of photochromic glass formed upon the surface of said core, and means for supporting said fiber optic plate.
Claim 3
Dependent Claim
32 words
An image storage device in accordance with claim 1 wherein said supporting means comprises a cathode ray tube faceplate having a plurality of supports on which said fiber optic plate is disposed.
Claim 4
Dependent Claim
43 words
An image storage device in accordance with claim 1 wherein said supporting means comprises a cathode ray tube envelope which engages a peripheral portion of said fiber optic plate so that said fiber optic plate forms the faceplate of said cathode ray tube.
Claim 5
Dependent Claim
62 words
An image storage device in accordance with claim 1 wherein the refractive index of said core glass is substantially the same as that of said photochromic glass layer, said fibers further comprising a layer of cladding glass formed upon the surfacE of said layer of said photochromic glass, the refractive index of said cladding glass being lower than said given refractive index.
Claim 6
Dependent Claim
19 words
An image storage device in accordance with claim 4 wherein said cladding glass is an ultraviolet light absorbing glass.
Claim 7
Dependent Claim
25 words
An image storage device in accordance with claim 5 further comprising a thin sheet of high density photochromic glass disposed on said first end face.
Claim 8
Dependent Claim
39 words
An image storage device in accordance with claim 4 wherein said cladding glass is a non-absorbing glass, said fibers further comprising an extra mural layer of ultraviolet absorbing material formed upon the surface of said layer of cladding glass.
Claim 9
Dependent Claim
25 words
An image storage device in accordance with claim 7 further comprising a thin sheet of high density photochromic glass disposed on said first end face.
Claim 10
Dependent Claim
26 words
An image storage device in accordance with claim 1 wherein the refractive index of said layer of photochromic glass is lower than said given refractive index.
Claim 11
Dependent Claim
25 words
An image storage device in accordance with claim 9 further comprising a thin sheet of high density photochromic glass disposed on said first end face.
Claim 12
Dependent Claim
18 words
An image storage device in accordance with claim 9 wherein said glass core consists of a photochromic glass.
Claim 13
Dependent Claim
25 words
An image storage device in accordance with claim 11 further comprising a thin sheet of high density photochromic glass disposed on said first end face.
Claim 14
Dependent Claim
58 words
An image storage device in accordance with claim 9 wherein said glass core consists of a photochromic glass capable of providing a given optical density when activated and said layer of photochromic glass consists of a high density photochromic glass which is capable of providing when activated an optical density greater than that of said given optical density.
Claim 15
Dependent Claim
27 words
An image storage device in accordance with claim 13 further comprising a layer of ultraviolet absorbing material formed upon the surface of said layer of photochromic glass.
Claim 16
Dependent Claim
18 words
An image storage device in accordance with claim 9 wherein said glass core consists of a non-absorbing glass.
Claim 17
Dependent Claim
23 words
An image storage device in accordance with claim 15 wherein the axes of said light conducting fibers are perpendicular to said end faces.
Claim 18
Dependent Claim
25 words
An image storage device in accordance with claim 16 further comprising a thin sheet of high density photochromic glass disposed on said first end face.
Claim 19
Dependent Claim
38 words
An image storage device in accordance with claim 17 further comprising means for directing a collimated beam of probing light toward said first end face, the direction of said beam being non-parallel with the axes of said fibers.
Claim 20
Dependent Claim
43 words
An image storage device in accordance with claim 18 wherein said supporting means comprises a cathode ray tube envelope which engages a peripheral portion of said fiber optic plate so that said fiber optic plate forms the faceplate of said cathode ray tube.
Claim 21
Dependent Claim
51 words
An image storage device in accordance with claim 19 further comprising a layer of phosphor disposed adjacent to said second end face, said phosphor being capable of radiating ultraviolet light, and a dichroic layer disposed between said second face and said phosphor layer for reflecting green light and passing ultraviolet light.
Claim 22
Dependent Claim
27 words
An image storage device in accordance with claim 15 wherein the axes of said light conducting fibers are not perpendicular to said first and second end faces.
Claim 23
Dependent Claim
25 words
An image storage device in accordance with claim 21 further comprising a thin sheet of high density photochromic glass disposed on said first end face.
Claim 24
Dependent Claim
35 words
An image storage device in accordance with claim 22 further comprising means for directing a collimated beam of probing light toward said first face, the direction of said beam being perpendicular to said first face.
Claim 25
Dependent Claim
39 words
An image storage device in accordance with claim 23 wherein said supporting means comprises a cathode ray tube envelope which engages a peripheral portion of said plate so that said plate forms the faceplate of said cathode ray tube.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |