US3877791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable mirror light valve and method of making the same
Assignee: RCA Corp
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Filing: 1974-02-20
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Granted: 1975-04-15
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Expires: 1994-02-20
Abstract
Abstract A deformable mirror light valve is improved by providing the deformable mirror light valve with a double layer deformable mirror. The double layer prevents damage to the mirror surface during and after construction.
Inventors
- 👤 William Ronald Roach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:22
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/022; G02; G02B; G02B26/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A METHOD OF CONSTRUCTING A DEFORMABLE MIRROR LIGHT VALVE COMPRISING THE STEPS OF : A. DEPOSITING A TRANSPARENT CONDUCTOR LAYER ON ONE SURFACE OF A TRANSPARENT SUBSTRATE, B. DEPOSITING A PHOTOCONDUCTOR LAYER ON SAID TRANSPARENT CONDUCTOR LAYER, C. DEPOSITING AN ELASTOMER LAYER ON SAID PHOTOCONDUCTOR LAYER, D. PARTIALLY CURING SAID ELASTOMER LAYER, THEN E. DEPOSITING A FIRST CONDUCTIVE LAYER ON SAID ELASTOMER LAYER, SAID FIRST LAYER PROVIDING GOOD OPTICAL ISOLATION AND HAVING THE ABILITY TO ADHERE TO SAID ELASTOMER LAYER, AND F. CURING SAID ELASTOMER LAYER SUBSTANTIALLY FULLY,
Claim 2
Independent Claim
88 words
A METHOD OF CONSTRUCTING A DEFORMABLE MIRROR LIGHT VALVE COMPRISING THE STEPS OF : A. DEPOSITING A TRANSPARENT CONDUCTOR LAYER ON ONE SURFACE OF A TRANSPARENT SUBSTRATE, B. DEPOSITING A PHOTOCONDUCTOR LAYER ON SAID TRANSPARENT CONDUCTOR LAYER, C. DEPOSITING AN ELASTOMER LAYER ON SAID PHOTOCONDUCTOR LAYER, D. PARTIALLY CURING SAID ELASTOMER LAYER, THEN E. DEPOSITING A FIRST CONDUCTIVE LAYER ON SAID ELASTOMER LAYER, SAID FIRST LAYER PROVIDING GOOD OPTICAL ISOLATION AND HAVING THE ABILITY TO ADHERE TO SAID ELASTOMER LAYER, AND F. CURING SAID ELASTOMER LAYER SUBSTANTIALLY FULLY,
Claim 3
Dependent Claim
22 words
A method in accordance with claim 1 wherein a layer of gold is evaporated on said elastomer layer as said first layer.
Claim 4
Dependent Claim
22 words
A method in accordance with claim 2 wherein a layer of indium is evaporated on said gold layer as said second layer.
References Cited (Backward Citations)
US3716359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |