US3291996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera photocell with movable lens for maintaining a relatively constant vertical field angle as the camera is rotated
Assignee: Eastman Kodak Co
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Filing: 1963-08-29
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Granted: 1966-12-13
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 Allen G Stimson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:27
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/099; G03B7/09908; G03B7/0993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN OPTICAL SYSTEM FOR REGULATING THE ELEVATION OF THE VERTICAL FIELD ANGLE FROM WHICH A PHOTOELECTRIC CELL IS ILLUMINATED, COMPRISING: A TILTABLE FRAME SUPPORTING SAID CELL; A LIGHT DEFLECTOR FOR DIRECTING LIGHT ONTO SAID CELL; AND PENDULAR MEANS SUPPORTING SAID DEFLECTOR FOR MOVING AT LEAST A PART OF SAID DEFLECTOR RELATIVE TO SAID CELL WHEN SAID FRAME AND CELL ARE TILTED UP OR DOWN, THE DIRECTION OF RELATIVE MOVEMENT OF SAID DEFLECTOR PART BEING SUCH THAT THE ANGULAR MOVEMENT OF THE VERTICAL LIMITS TO THE FIELD OF ILLUMINATION OF SAID CELL IS LESS THAN THE ANGLE THROUGH WHICH SAID CELL IS TILTED.
Claim 2
Dependent Claim
102 words
AN OPTICAL SYSTEM FOR REGULATING THE ELEVATION OF THE VERTICAL FIELD ANGLE FROM WHICH A PHOTOELECTRIC CELL IS ILLUMINATED, COMPRISING: A TILTABLE FRAME SUPPORTING SAID CELL; A LIGHT DEFLECTOR FOR DIRECTING LIGHT ONTO SAID CELL; AND PENDULAR MEANS SUPPORTING SAID DEFLECTOR FOR MOVING AT LEAST A PART OF SAID DEFLECTOR RELATIVE TO SAID CELL WHEN SAID FRAME AND CELL ARE TILTED UP OR DOWN, THE DIRECTION OF RELATIVE MOVEMENT OF SAID DEFLECTOR PART BEING SUCH THAT THE ANGULAR MOVEMENT OF THE VERTICAL LIMITS TO THE FIELD OF ILLUMINATION OF SAID CELL IS LESS THAN THE ANGLE THROUGH WHICH SAID CELL IS TILTED.
References Cited (Backward Citations)
US2076482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |