Patent US3305689A successfully refreshed from Google Patents.
US3305689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical signal converter system
Assignee: Lockheed Martin Corp
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Filing: 1963-06-26
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Granted: 1967-02-21
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul M Leavy
- 👤 John S Strobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:11
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/0354; G06F3/03542; G01; G01S; G01S1/00; G01S1/02; G02; G02B; G02B6/00; G02B6/04; G02B6/06; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/381; G02B6/3817; G02B6/42; G02B6/4201; G02B6/4274; G02B6/4284; G02B6/4292; G02B6/4293
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN COMBINATION WITH A CATHODE RAY DISPLAY TUBE HAVING A MULTIPHOSPHOR COATED SCREEN AND A WRITING BEAM CONTROLLABLE TO WRITE UPON SAID SCREEN, SAID SCREEN BEING COATED WITH A FIRST PHOSPHOR HAVING A FIRST FREQUENCY CHARACTERISTIC AND A SECOND PHOSPHOR HAVING DIFFERENT FREQUENCY CHARACTERISTICS, SAID SCREEN EMITTING RADIANT ENERGY CONSISTING OF FREQUENCIES FROM BOTH PHOSPHORS AT THE POINT OF IMPACT OF SAID WRITING BEAM AS SAID WRITING BEAM SCANS ACROSS SAID SCREEN, LIGHT DETECTION MEANS SOLELY RESPONSIVE TO ONE SPECTRAL WAVELENGTH FOR GENERATING A CORRESPONDING ELECTRICAL SIGNAL, A LIGHT SOURCE, A LIGHT PENCIL, OUTPUT LIGHT CONDUCTIVE FIBERS CONVEYING LIGHT FROM SAID LIGHT SOURCE TO SAID LIGHT PENCIL, OPTICAL FOCUSING MEANS FOR FOCUSING SAID CONVEYED LIGHT FROM SAID LIGHT PENCIL ONTO AN AREA EXTERNAL TO SAID PENCIL AND AT A PREDTERMINED DISTANCE FROM SAID PENCIL, INPUT LIGHT CONDUCTING FIBERS TERMINATING IN SAID LIGHT PENCIL FOR CONDUCTING LIGHT FROM SAID PENCIL TO SAID DETECTION MEANS, SAID OPTICAL FOCUSING MEANS CAPTURING LIGHT EMITTED AT SAID AREA AND FOCUSING SAID LIGHT ONTO SAID INPUT LIGHT CONDUCTIVE FIBERS.
Claim 2
Dependent Claim
173 words
IN COMBINATION WITH A CATHODE RAY DISPLAY TUBE HAVING A MULTIPHOSPHOR COATED SCREEN AND A WRITING BEAM CONTROLLABLE TO WRITE UPON SAID SCREEN, SAID SCREEN BEING COATED WITH A FIRST PHOSPHOR HAVING A FIRST FREQUENCY CHARACTERISTIC AND A SECOND PHOSPHOR HAVING DIFFERENT FREQUENCY CHARACTERISTICS, SAID SCREEN EMITTING RADIANT ENERGY CONSISTING OF FREQUENCIES FROM BOTH PHOSPHORS AT THE POINT OF IMPACT OF SAID WRITING BEAM AS SAID WRITING BEAM SCANS ACROSS SAID SCREEN, LIGHT DETECTION MEANS SOLELY RESPONSIVE TO ONE SPECTRAL WAVELENGTH FOR GENERATING A CORRESPONDING ELECTRICAL SIGNAL, A LIGHT SOURCE, A LIGHT PENCIL, OUTPUT LIGHT CONDUCTIVE FIBERS CONVEYING LIGHT FROM SAID LIGHT SOURCE TO SAID LIGHT PENCIL, OPTICAL FOCUSING MEANS FOR FOCUSING SAID CONVEYED LIGHT FROM SAID LIGHT PENCIL ONTO AN AREA EXTERNAL TO SAID PENCIL AND AT A PREDTERMINED DISTANCE FROM SAID PENCIL, INPUT LIGHT CONDUCTING FIBERS TERMINATING IN SAID LIGHT PENCIL FOR CONDUCTING LIGHT FROM SAID PENCIL TO SAID DETECTION MEANS, SAID OPTICAL FOCUSING MEANS CAPTURING LIGHT EMITTED AT SAID AREA AND FOCUSING SAID LIGHT ONTO SAID INPUT LIGHT CONDUCTIVE FIBERS.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |