US3192841A
Expired / Lapsed
US
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Assignee: Societe dOptique et de Mecanique de Haute Precision
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Filing: 1962-03-19
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Granted: 1965-07-06
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Reymond Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:35
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/02; G03B13/06; G03B13/18; G03B13/20; G03B7/00; G03B7/08; G03B7/099; G03B7/0993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A TELEMETER VIEW-FINDER FOR A PHOTOGRAPHIC OBJECTIVE HAVING A DIAPHRAGM WITH AN ADJUSTABLE DIAPHRAGM APERTURE FOR THE OBJECTIVE, A SIGHTING OBJECTIVE, AT LEAST ONE DOUBLE PRISM, AN INTERSECTION ANGLE FOR SAID PRISM LOCATED IN THE PLANE OF THE TRUE IMAGE FORMED BY SAID SIGHTING OBJECTIVE, A TWO CARRIAGE SEPARATED BY AN AIR SPACE, AN EYE-PIECE, INLET APERTURES IN FRONT OF SAID SIGHTING OBJECTIVE, THE IMAGES OF SAID APERTURES BEING COMBINED INTO A SIGNAL TURE AXIAL IMAGE IN SAID AIR SPACE, AND MEANS IN THE AIR SPACE DISPOSED IN THE PATH OF THE LIGHT RAYS FORMING REDUNDANT NON-AXIAL TRUE IMAGES OF SAID INLET APERTURES FOR RECEIVING SAID LIGHT RAYS IN ORDER TO ADJUST THE DIAPHRAGM APERTURE OF THE PHOTOGRAPHIC OBJECTIVE SAID MEANS INCLUDING AT LEAST ONE PHOTOELECTRIC CELL ELECTRONICALLY CONNECTED TO SAID DIAPHRAGM.
Claim 2
Dependent Claim
133 words
IN A TELEMETER VIEW-FINDER FOR A PHOTOGRAPHIC OBJECTIVE HAVING A DIAPHRAGM WITH AN ADJUSTABLE DIAPHRAGM APERTURE FOR THE OBJECTIVE, A SIGHTING OBJECTIVE, AT LEAST ONE DOUBLE PRISM, AN INTERSECTION ANGLE FOR SAID PRISM LOCATED IN THE PLANE OF THE TRUE IMAGE FORMED BY SAID SIGHTING OBJECTIVE, A TWO CARRIAGE SEPARATED BY AN AIR SPACE, AN EYE-PIECE, INLET APERTURES IN FRONT OF SAID SIGHTING OBJECTIVE, THE IMAGES OF SAID APERTURES BEING COMBINED INTO A SIGNAL TURE AXIAL IMAGE IN SAID AIR SPACE, AND MEANS IN THE AIR SPACE DISPOSED IN THE PATH OF THE LIGHT RAYS FORMING REDUNDANT NON-AXIAL TRUE IMAGES OF SAID INLET APERTURES FOR RECEIVING SAID LIGHT RAYS IN ORDER TO ADJUST THE DIAPHRAGM APERTURE OF THE PHOTOGRAPHIC OBJECTIVE SAID MEANS INCLUDING AT LEAST ONE PHOTOELECTRIC CELL ELECTRONICALLY CONNECTED TO SAID DIAPHRAGM.
References Cited (Backward Citations)
US1993084A
Cited
US2058532A
Cited
US2360256A
Cited
US2659268A
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US2655848A
Cited
FR1209793A
Cited
US3006262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |