US3305834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical system utilizing fraunhofer diffraction patterns for specimen identification purposes
Assignee: International Business Machines Corp
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Filing: 1963-12-31
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Granted: 1967-02-21
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Cooper Lawrence
- 👤 Richard W Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/42; G02B27/46; G06; G06V; G06V10/00; G06V10/88; G06V30/00; G06V30/10; G06V30/22; G06V30/224; G06V30/2247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN OPTICAL SYSTEM FOR SPECIMEN IDENTIFICATION PURPOSES COMPRISING MEANS FOR GENERATING A FRAUNHOFER DIFFRACTION PATTERN OF THE SPECIMEN TO BE IDENTIFIED, A RELATIVELY OPAQUE MASK HAVING A RADIALLY DISPOSED, RELATIVELY TRANSPARENT SLIT THEREIN DISPOSED IN THE DIFFRACTION PLANE OF SAID GENERATING MEANS, MEANS TO ROTATE SAID SLIT ABOUT THE MAJOR AXIS OF THE OPTICAL SYSTEM, AND MEANS FOR SENSING RADIANT ENERGY TRANSMITTED THROUGH SAID MASK AS A FUNCTION OF THE ANGULAR POSITION OF SAID SLIT.
Claim 2
Dependent Claim
75 words
AN OPTICAL SYSTEM FOR SPECIMEN IDENTIFICATION PURPOSES COMPRISING MEANS FOR GENERATING A FRAUNHOFER DIFFRACTION PATTERN OF THE SPECIMEN TO BE IDENTIFIED, A RELATIVELY OPAQUE MASK HAVING A RADIALLY DISPOSED, RELATIVELY TRANSPARENT SLIT THEREIN DISPOSED IN THE DIFFRACTION PLANE OF SAID GENERATING MEANS, MEANS TO ROTATE SAID SLIT ABOUT THE MAJOR AXIS OF THE OPTICAL SYSTEM, AND MEANS FOR SENSING RADIANT ENERGY TRANSMITTED THROUGH SAID MASK AS A FUNCTION OF THE ANGULAR POSITION OF SAID SLIT.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |