US3091167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual signal for photographic cameras
Assignee: Eastman Kodak Co
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Filing: 1962-06-20
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Granted: 1963-05-28
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Expires: 1982-06-20
Abstract
No abstract record available.
Inventors
- 👤 Cameron B Estes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:24
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/18; G03B17/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A CAMERA HAVING AN AUTOMATIC EXPOSURE CONTROL SYSTEM INCLUDING A PHOTOCELL AND A MEMBER MOVED AUTOMATICALLY UNDER CONTROL OF SAID PHOTOCELL AS A FUNCTION OF SCENE BRIGHTNESS TO REGULATE THE EXPOSURE OF FILM IN SAID CAMERA, THE COMBINATION COMPRISING: MEANS INCLUDING AN ELECTRIC LAMP AND A SOURCE OF ELECTRICAL POTENTIAL FOR SAID LAMP FOR TRANSMITTING LIGHT TO A VIEWING LOCUS VISIBLE FROM OUTSIDE OF THE CAMERA; SIGNAL CONTROL MEANS COMPRISING A SCALE DEVICE DISPOSED IN COOPERATIVE RELATION WITH SAID TRANSMITTING MEANS AND MOVED BY SAID MEMBER FOR MODIFYING THE LIGHT TRANSMITTED TO SAID LOCUS IN ACCORDANCE WITH THE POSITION OF SAID MEMBER, SAID SCALE DEVICE HAVING AREAS OF CONTRASTING LIGHT TRANSMISSION DEFINING SCALE INDICIA AND HAVING A PATH OF MOVEMENT INTERSECTING THE LIGHT TRANSMITTED TO SAID LOCUS; AND A BAFFLE HAVING A PINHOLE APERTURE INTERPOSED BETWEEN SAID LAMP AND THE PATH OF SAID SCALE DEVICE.
Claim 2
Dependent Claim
146 words
IN A CAMERA HAVING AN AUTOMATIC EXPOSURE CONTROL SYSTEM INCLUDING A PHOTOCELL AND A MEMBER MOVED AUTOMATICALLY UNDER CONTROL OF SAID PHOTOCELL AS A FUNCTION OF SCENE BRIGHTNESS TO REGULATE THE EXPOSURE OF FILM IN SAID CAMERA, THE COMBINATION COMPRISING: MEANS INCLUDING AN ELECTRIC LAMP AND A SOURCE OF ELECTRICAL POTENTIAL FOR SAID LAMP FOR TRANSMITTING LIGHT TO A VIEWING LOCUS VISIBLE FROM OUTSIDE OF THE CAMERA; SIGNAL CONTROL MEANS COMPRISING A SCALE DEVICE DISPOSED IN COOPERATIVE RELATION WITH SAID TRANSMITTING MEANS AND MOVED BY SAID MEMBER FOR MODIFYING THE LIGHT TRANSMITTED TO SAID LOCUS IN ACCORDANCE WITH THE POSITION OF SAID MEMBER, SAID SCALE DEVICE HAVING AREAS OF CONTRASTING LIGHT TRANSMISSION DEFINING SCALE INDICIA AND HAVING A PATH OF MOVEMENT INTERSECTING THE LIGHT TRANSMITTED TO SAID LOCUS; AND A BAFFLE HAVING A PINHOLE APERTURE INTERPOSED BETWEEN SAID LAMP AND THE PATH OF SAID SCALE DEVICE.
References Cited (Backward Citations)
US2297262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |