US3128669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera with automatic diaphragm control
Assignee: Eastman Kodak Co
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Filing: 1962-05-09
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Granted: 1964-04-14
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Steisslinger Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:53
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A CINE CAMERA HAVING A LENS SYSTEM ARRANGED ALONG AN OPTICAL AXIS FOR FOCUSING AN IMAGE OF A VIEWED SCENE ONTO A PHOTOSENSITIVE MATERIAL, SELECTIVELY OPERABLE MEANS FOR ADVANCING SAID PHOTOSENSITIVE MATERIAL ACROSS SAID OPTICAL AXIS, A PHOTOELECTRIC ELEMENT ILLUMINATABLE BY SCENE LIGHT, A FIRST DIAPHRAGM LOCATED ON SAID AXIS AND HAVING A VARIABLE APERTURE, AND MEANS COUPLING SAID ELEMENT TO SAID FIRST DIAPHRAGM FOR VARYING THE SIZE OF SAID APERTURE AS A FUNCTION OF THE ILLUMINATION OF SAID ELEMENT, THE COMBINATION COMPRISING: (A) A SECOND DIAPHRAGM HAVING A VARIABLE APERTURE AND ARRANGED IN FRONT OF SAID PHOTOELECTRIC ELEMENT FOR CONTROLLING THE ILLUMINATION OF SAID ELEMENT; AND (B) CONTROL MEANS COUPLING SAID SECOND DIAPHRAGM TO SAID ADVANCING MEANS FOR VARYING THE APERTURE IN
Claim 2
Dependent Claim
124 words
IN A CINE CAMERA HAVING A LENS SYSTEM ARRANGED ALONG AN OPTICAL AXIS FOR FOCUSING AN IMAGE OF A VIEWED SCENE ONTO A PHOTOSENSITIVE MATERIAL, SELECTIVELY OPERABLE MEANS FOR ADVANCING SAID PHOTOSENSITIVE MATERIAL ACROSS SAID OPTICAL AXIS, A PHOTOELECTRIC ELEMENT ILLUMINATABLE BY SCENE LIGHT, A FIRST DIAPHRAGM LOCATED ON SAID AXIS AND HAVING A VARIABLE APERTURE, AND MEANS COUPLING SAID ELEMENT TO SAID FIRST DIAPHRAGM FOR VARYING THE SIZE OF SAID APERTURE AS A FUNCTION OF THE ILLUMINATION OF SAID ELEMENT, THE COMBINATION COMPRISING: (A) A SECOND DIAPHRAGM HAVING A VARIABLE APERTURE AND ARRANGED IN FRONT OF SAID PHOTOELECTRIC ELEMENT FOR CONTROLLING THE ILLUMINATION OF SAID ELEMENT; AND (B) CONTROL MEANS COUPLING SAID SECOND DIAPHRAGM TO SAID ADVANCING MEANS FOR VARYING THE APERTURE IN
References Cited (Backward Citations)
US2080055A
Cited
US2250898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |