Patent US3314052A successfully refreshed from Google Patents.
US3314052A
Expired / Lapsed
US
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Light modulation system
Assignee: International Business Machines Corp
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Filing: 1963-04-12
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Granted: 1967-04-11
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Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Adolf W Lohmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:01
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/42; G02B27/4266; G11; G11C; G11C13/00; G11C13/04; G11C13/042; H; H04; H04N; H04N5/00; H04N5/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A SYSTEM COMPRISING, A POINT SOURCE OF LIGHT, A COLLIMATING LENS, A CONVERGING LENS, A DIFFRACTION GRATING POSITIONED BETWEEN SAID COLLIMATING LENS AND SAID CONVERGING LENS, A SIGNAL INPUT MEANS, MEANS FOR MODULATING THE ANGULAR ORIENTATION OF SAID GRATING IN RESPONSE TO SAID SIGNAL INPUT MEANS, A MASK IN THE FRAUNHOFER PLANE OF SAID CONVERGING LENS, SAID MASK HAVING AREAS OF VARYING TRANSMISSIVITY, AND DETECTING MEANS IN THE IMAGE PLANE OF SAID CONVERGING LENS TO DETECT THE AMOUNT OF LIGHT INCIDENT UPON SAID DETECTING MEANS.
Claim 2
Independent Claim
85 words
A SYSTEM COMPRISING, A POINT SOURCE OF LIGHT, A COLLIMATING LENS, A CONVERGING LENS, A DIFFRACTION GRATING POSITIONED BETWEEN SAID COLLIMATING LENS AND SAID CONVERGING LENS, A SIGNAL INPUT MEANS, MEANS FOR MODULATING THE ANGULAR ORIENTATION OF SAID GRATING IN RESPONSE TO SAID SIGNAL INPUT MEANS, A MASK IN THE FRAUNHOFER PLANE OF SAID CONVERGING LENS, SAID MASK HAVING AREAS OF VARYING TRANSMISSIVITY, AND DETECTING MEANS IN THE IMAGE PLANE OF SAID CONVERGING LENS TO DETECT THE AMOUNT OF LIGHT INCIDENT UPON SAID DETECTING MEANS.
References Cited (Backward Citations)
US2050417A
Cited
US2967211A
Cited
US2891108A
Cited
US2834005A
Cited
US2943147A
Cited
US2985866A
Cited
US3084334A
Cited
US3195432A
Cited
US3064519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |