US3905683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable mirror light valve for real time operation
Assignee: RCA Corp
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Filing: 1974-05-23
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Granted: 1975-09-16
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Expires: 1994-05-23
Abstract
Abstract The elastomer layer of a deformable mirror light valve has a resistivity such that a carrier moves through the photoconductor layer and the elastomer layer causing the projected image to rise and fall within real time rates. The elastomer layer includes a resistivity modifier.
Inventors
- 👤 William Ronald Roach
- 👤 Lynne Darcy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:38
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/08; G02B26/0816; G02B26/0825
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A deformable mirror light valve of the type having a transparent substrate, a transparent conductor layer covering one surface of said transparent substrate, a photoconductor layer on said transparent conductor layer, an elastomer layer on said photoconductor layer, and a deformable mirror layer on said elastomer layer, wherein the improvement comprises: said elastomer layer comprising silicone rubber having a resistivity modifier to impart to said layer a resistivity in the range of approximately 1010 ohm-cm to 1012 ohm-cm whereby a carrier moves through said photoconductor layer and said elastomer layer within real time rates under a constant direct current biasing voltage.
Claim 2
Dependent Claim
101 words
A deformable mirror light valve of the type having a transparent substrate, a transparent conductor layer covering one surface of said transparent substrate, a photoconductor layer on said transparent conductor layer, an elastomer layer on said photoconductor layer, and a deformable mirror layer on said elastomer layer, wherein the improvement comprises: said elastomer layer comprising silicone rubber having a resistivity modifier to impart to said layer a resistivity in the range of approximately 1010 ohm-cm to 1012 ohm-cm whereby a carrier moves through said photoconductor layer and said elastomer layer within real time rates under a constant direct current biasing voltage.
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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |