Patent US2389423A successfully refreshed from Google Patents.
Patent US3784741A successfully refreshed from Google Patents.
US3784741A
Expired / Lapsed
US
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Cathode ray tube device
Assignee: Toshiba Corp
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Filing: 1971-07-19
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Granted: 1974-01-08
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Expires: 1991-07-19
Abstract
Abstract A cathode ray tube device comprising a face plate having a picture transmission glass plate and a picture reception fiber plate, and a reflector disposed slantwise in front of the glass plate. In picture reception, the medium is traveling in front of the face plate. In picture reading or transmission, however, the graphic medium is traveling along the side of the face plate. These media are traveling in front and on the side of the face plate in their respective positions independent of each other.
Inventors
- 👤 H Minami
- 👤 M Ando
- 👤 Y Obata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:56
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/892
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
A cathode ray tube device for recording and reading information comprising: a funnel-shaped envelope including a neck portion coupled to a cone portion; a faceplate disposed on the front end of said envelope and comprising a fiber glass plate for recording and a clear glass plate for reading juxtaposed thereto, said fiber glass plate being formed of a number of glass fibers densely arranged in the axial direction of the cathode ray tube and having a surface adapted to contact with a photosensitive medium for recording; a phosphor screen disposed inside said faceplate; an electron gun unit received in said neck portion for emitting an electron beam toward said phosphor screen; and a reflector having a reflecting surface disposed slantwise in front of said clear glass plate for reflecting light from said screen to a medium to be read.
Claim 2
Dependent Claim
139 words
A cathode ray tube device for recording and reading information comprising: a funnel-shaped envelope including a neck portion coupled to a cone portion; a faceplate disposed on the front end of said envelope and comprising a fiber glass plate for recording and a clear glass plate for reading juxtaposed thereto, said fiber glass plate being formed of a number of glass fibers densely arranged in the axial direction of the cathode ray tube and having a surface adapted to contact with a photosensitive medium for recording; a phosphor screen disposed inside said faceplate; an electron gun unit received in said neck portion for emitting an electron beam toward said phosphor screen; and a reflector having a reflecting surface disposed slantwise in front of said clear glass plate for reflecting light from said screen to a medium to be read.
Claim 3
Dependent Claim
43 words
The cathode ray tube device according to claim 1 which further comprises a head pad for contacting the photosensitive medium to said glass fiber plate and a lens system for focusing the reflected light from said reflector onto said medium to be read.
Claim 4
Dependent Claim
21 words
The cathode ray tube device according to claim 1 whereiN said medium to be read is located adjacent said face plate.
Claim 5
Dependent Claim
82 words
The cathode ray tube device according to claim 1 wherein said faceplate is comprised of a thick glass fiber plate and a thin clear glass plate so connected to the side of said thick glass fiber plate that the outer surface of said clear glass plate is in a retracted position from the outer surface of said glass fiber plate, said reflector being a rectangular prism coupled to the side of said glass fiber plate to which said glass plate is connected.
Claim 6
Dependent Claim
32 words
The cathode ray tube device according to claim 4 wherein the outer surface of said rectangular prism is in substantially the same plane as the outer surface of said glass fiber plate.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |