US3606523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid variable light deflector
Assignee: RCA Corp
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Filing: 1968-05-14
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Granted: 1971-09-20
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Expires: 1988-05-14
Abstract
Abstract A LIGHT DEFLECTION APPARATUS USING HOLLOW OPTICAL ELEMENTS IN THE FORM OF LENSES AND PRISMS AND MEANS FOR SELECTIVELY INTRODUCING DIFFERING REFRACTIVE INDEX FLUID INTO THE ELEMENTS TO ALTER THE OPTICAL PROPERTIES OF THE ELEMENTS. A FURTHER APPARTUS EMBODIMENT USES A LONGITUDINALLY DIVIDED PRISM FOR CHANGING THE PRISM EXIT DIRECTION OF A TRANSITORY LIGHT BEAM BY SELECTIVELY CREATING TOTAL REFLECTION AT AN INTERFACE WITHIN THE PRISM BETWEEN A PERMANENT TRANSPARENT MEDIUM AND A SELECTIVELY INTRODUCED TRANSPARENT FLUID. D R A W I N G
Inventors
- 👤 George William Taylor
- 👤 Philip Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:53
CPC Classifications
G; G02; G02B; G02B1/00; G02B1/06; F; F15; F15C; F15C1/00; F15C1/007
Claims Analysis
Total Claims: 0
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |