Patent US3450885A successfully refreshed from Google Patents.
US3450885A
Expired / Lapsed
US
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Image converter having photo-sensitive material having a response time dependent on intensity of incident light
Assignee: ROBERT L WILLES
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Filing: 1966-10-25
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Granted: 1969-06-17
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Expires: 1986-10-25
Abstract
No abstract record available.
Inventors
- 👤 Robert L Willes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:09
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/257; H04N5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD FOR CONVERTING A LIGHT IMAGE TO AN ELECTRIC SIGNAL COMPRISING THE STEPS OF: (A) IMPINGING A LIGHT IMAGE UPON A SURFACE OF A LAYER OF PHOTOSENSITIVE MATERIAL, THE PHOTOELECTRIC RESPONSE TIME OF SAID MATERIAL BEING DEPENDENT UPON THE INTENSITY OF LIGHT INCIDENT THEREON; (B) IMPINGING A SCANNING SPOT OF LIGHT UPON A SURFACE OF SAID LAYER; AND (C) SENSING THE VARIATION OF THE PHOTOELECTRIC RESPONSE TIME OF THE MATERIAL.
Claim 2
Independent Claim
71 words
A METHOD FOR CONVERTING A LIGHT IMAGE TO AN ELECTRIC SIGNAL COMPRISING THE STEPS OF: (A) IMPINGING A LIGHT IMAGE UPON A SURFACE OF A LAYER OF PHOTOSENSITIVE MATERIAL, THE PHOTOELECTRIC RESPONSE TIME OF SAID MATERIAL BEING DEPENDENT UPON THE INTENSITY OF LIGHT INCIDENT THEREON; (B) IMPINGING A SCANNING SPOT OF LIGHT UPON A SURFACE OF SAID LAYER; AND (C) SENSING THE VARIATION OF THE PHOTOELECTRIC RESPONSE TIME OF THE MATERIAL.
References Cited (Backward Citations)
US2912592A
Cited
US3335226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |