US3618499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera with coordinated aperture and focus adjustment means
Assignee: Eastman Kodak Co
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Filing: 1969-04-04
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Granted: 1971-11-09
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Expires: 1989-04-04
Abstract
Abstract A CAMERA HAVING BOTH FOCUSING AND LENS APERTURE ADJUSTMENTS IS PROVIDED WITH A COORDINATING MECHANISM FOR AUTOMATICALLY VARYING THE LENS FOCUS ADJUSTMENT AS A FUNCTION OF THE LENS APERTURE ADJUSTMENT, SO AS TO INSURE MAXIMUM DEPTH OF FIELD. IN A PREFERRED EMBODIMENT OF THE INVENTION, THIS MECHANISM IS INCORPORATED IN A CAMERA PROVIDED WITH AN AUTOMATIC RANGEFINDER LENS FOCUSING SYSTEM, SO THAT WHEN THE TRAVERSE OF THE RANGEFINDER FAILS TO DETECT SUBJECT AT A CLOSE DISTANCE, THE LENS IS THAN ADJUSTED TO ITS SHORTEST HYPERFOCAL SETTING COMPATIBLE WITH THE CONCURRENT ADJUSTMENT OF LENS APERTURE.
Inventors
- 👤 Donald M Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:37
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/28; G02B7/30; G02B7/32; G03; G03B; G03B7/00; G03B7/006; G03B7/08; G03B7/12; G03B7/14
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |