US3089398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ophthalmic cameras
Assignee: Carl Zeiss AG
•
Filing: 1960-07-12
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Granted: 1963-05-14
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Expires: 1980-07-12
Abstract
No abstract record available.
Inventors
- 👤 Wilms Karl Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/13; A61B3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A CAMERA FOR PHOTOGRAPHING THE RETINA OF THE HUMAN EYE, COMPRISING A STATIONARY CAMERA PORTION, COLLECTING FRONT AND REAR OPTICAL SYSTEMS ARRANGED IN SPACED RELATION IN SAID CAMERA PORTION FORMING A TELECENTRIC PHOTOGRAPHIC OBJECTIVE, THE SPACE DISTANCE BETWEEN SAID TWO COLLECTIG SYSTEMS BEING SELECTED SUCH THAT THE IMAGE OF THE PUPIL OF SAID EYE PRODUCED BY SAID FRONT SYSTEM COINCIDES WITH A STOP ARRANGED IN THE FOCUS PLANE ON THE OBJECT SIDE OF SAID REAR SYSTEM, A MOVABLE CAMERA PORTION ON SAID STATIONARY PORTION ADAPTED TO BE DISPLACED AXIALLY ALONG THE OPTICAL AXIS OF SAID TELECENTRIC PHOTOGRAPHIC OBJECTIVE, AN IMAGE RECEIVING CASSETTE MOUNTED
Claim 2
Dependent Claim
104 words
IN A CAMERA FOR PHOTOGRAPHING THE RETINA OF THE HUMAN EYE, COMPRISING A STATIONARY CAMERA PORTION, COLLECTING FRONT AND REAR OPTICAL SYSTEMS ARRANGED IN SPACED RELATION IN SAID CAMERA PORTION FORMING A TELECENTRIC PHOTOGRAPHIC OBJECTIVE, THE SPACE DISTANCE BETWEEN SAID TWO COLLECTIG SYSTEMS BEING SELECTED SUCH THAT THE IMAGE OF THE PUPIL OF SAID EYE PRODUCED BY SAID FRONT SYSTEM COINCIDES WITH A STOP ARRANGED IN THE FOCUS PLANE ON THE OBJECT SIDE OF SAID REAR SYSTEM, A MOVABLE CAMERA PORTION ON SAID STATIONARY PORTION ADAPTED TO BE DISPLACED AXIALLY ALONG THE OPTICAL AXIS OF SAID TELECENTRIC PHOTOGRAPHIC OBJECTIVE, AN IMAGE RECEIVING CASSETTE MOUNTED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |