US3929510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar radiation conversion system
Assignee: United States Department of the Army
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Filing: 1974-05-22
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Granted: 1975-12-30
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Expires: 1994-05-22
Abstract
Abstract A system for converting solar radiation into useful electrical energy is provided. The system includes a silicon cell and solar radiation conversion means integral with or spaced from the silicon cell. The solar radiation conversion means is characterized by a band-emission spectrum that provides a good spectral match with the spectral response of a silicon cell.
Inventors
- 👤 Emil Kittl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:22
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/40; H10F77/42; H10F77/45; G; G02; G02F; G02F2/00; G02F2/02; H02; H02S; H02S10/00; H02S10/30; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/52
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A SYSTEM FOR CONVERTING SOLAR RADIATION INTO USEFUL ELECTRICAL ENERGY, SAID SYSTEM COMPRISING A SILICON CELL AND SOLAR RADIATION CONVERSION MEANS, SAID SOLAR RADIATION CONVERSION MEANS COMPRISING YTTERBIUM OXIDE AND SMALL AMOUNTS OF AT LEAST ONE OTHER RARE EARTH OXIDE SELECTED FROM THE GROUP CONSISTING OF PARSEODYMIUM OXIDE, NEODYMIUM OXIDE, HOLMIUM OXIDE, ERBIUM OXIDE, AND THULIUM OXIDE.
Claim 2
Independent Claim
57 words
A SYSTEM FOR CONVERTING SOLAR RADIATION INTO USEFUL ELECTRICAL ENERGY, SAID SYSTEM COMPRISING A SILICON CELL AND SOLAR RADIATION CONVERSION MEANS, SAID SOLAR RADIATION CONVERSION MEANS COMPRISING YTTERBIUM OXIDE AND SMALL AMOUNTS OF AT LEAST ONE OTHER RARE EARTH OXIDE SELECTED FROM THE GROUP CONSISTING OF PARSEODYMIUM OXIDE, NEODYMIUM OXIDE, HOLMIUM OXIDE, ERBIUM OXIDE, AND THULIUM OXIDE.
Claim 3
Dependent Claim
18 words
A system according to claim 1 wherein the solar radiation conversion means is spaced from the silicon cell.
Claim 4
Dependent Claim
18 words
A system according to claim 1 wherein the solar radiation conversion means is integral with the silicon cell.
Claim 5
Dependent Claim
16 words
A system according to claim 2 including optical means for collecting and concentrating the sun''s radiation.
Claim 6
Dependent Claim
31 words
A system according to claim 4 wherein said optical means includes a cassegrain two mirror arrangement and a cavity receiver, said cavity receiver being provided with the solar radiation conversion means.
Claim 7
Dependent Claim
16 words
A system according to claim 3 wherein the radiation conversion means is a glassy host material.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |