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US3173347A
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Autoamtic exposure control for a camera
Assignee: Eastman Kodak Co
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Filing: 1963-03-06
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Granted: 1965-03-16
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Expires: 1983-03-06
Abstract
No abstract record available.
Inventors
- 👤 Allen G Stimson
- 👤 John H Eagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A CAMERA HAVING A PHOTOELECTRIC EXPOSURE CONTROL SYSTEM FOR REGULATING THE EXPOSURE OF FILM IN SAID CAMERA, SAID CONTROL SYSTEM INCLUDING AN ELECTRICALLY ENERGIZABLE MEASURING INSTRUMENT HAVING AN OUTPUT MEMBER POSITIONABLE AS A FUNCTION OF THE ENERGIZATION OF SAID INSTRUMENT, THE COMBINATION COMPRIS: A FIRST SOURCE OF ILLUMINATION FOR ILLUMINATING THE SCENE TO BE PHOTOGRAPHED WITH NONVISIBLE ELECTROMAGNETIC RADIATION, A SECOND SOURCE OF ILLUMINATION FOR ILLUMINATING SAID SCENE WITH VISIBLE LIGHT; A PHOTOCELL RESPONSIVE TO RADIATION FROM SAID FIRST SOURCE REFLECTED FROM SAID SCENE FOR CONTROLLING THE ENERGIZATION OF SAID MEASURING INSTRUMENT TO POSITION SAID OUTPUT MEMBER AS A FUNCTION OF SAID VISIBLE LIGHT REFLECTION FROM SAID SCENE; EXPOSURE MEANS ADJUSTABLE IN ACCORDANCE WITH THE POSITION OF SAID OUTPUT MEMBER; AND MEANS FOR ENERGIZING SAID FIRST AND SECOND SOURCES OF ILLUMINATION.
Claim 2
Dependent Claim
132 words
IN A CAMERA HAVING A PHOTOELECTRIC EXPOSURE CONTROL SYSTEM FOR REGULATING THE EXPOSURE OF FILM IN SAID CAMERA, SAID CONTROL SYSTEM INCLUDING AN ELECTRICALLY ENERGIZABLE MEASURING INSTRUMENT HAVING AN OUTPUT MEMBER POSITIONABLE AS A FUNCTION OF THE ENERGIZATION OF SAID INSTRUMENT, THE COMBINATION COMPRIS: A FIRST SOURCE OF ILLUMINATION FOR ILLUMINATING THE SCENE TO BE PHOTOGRAPHED WITH NONVISIBLE ELECTROMAGNETIC RADIATION, A SECOND SOURCE OF ILLUMINATION FOR ILLUMINATING SAID SCENE WITH VISIBLE LIGHT; A PHOTOCELL RESPONSIVE TO RADIATION FROM SAID FIRST SOURCE REFLECTED FROM SAID SCENE FOR CONTROLLING THE ENERGIZATION OF SAID MEASURING INSTRUMENT TO POSITION SAID OUTPUT MEMBER AS A FUNCTION OF SAID VISIBLE LIGHT REFLECTION FROM SAID SCENE; EXPOSURE MEANS ADJUSTABLE IN ACCORDANCE WITH THE POSITION OF SAID OUTPUT MEMBER; AND MEANS FOR ENERGIZING SAID FIRST AND SECOND SOURCES OF ILLUMINATION.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |