Patent US2885116A successfully refreshed from Google Patents.
US3971672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light diffuser for photovoltaic cell
Assignee: TOTAL ENERGIE DEVELOPPEMENT
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Filing: 1975-02-03
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Granted: 1976-07-27
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Expires: 1995-02-03
Abstract
Abstract A photovoltaic system in which strips of active photovoltaic cells are coated on one side of a sheet of glass, the glass being illuminated by the sun from the other side of the sheet and the strips being separated by inactive areas devoted to electrodes, in which light diffusing areas are provided on said other side of the sheet of glass in superposition of the inactive areas in order to refract sunlight which would otherwise fall wholly on the inactive areas, on large part to the active areas of the cells.
Inventors
- 👤 Curtis M. Lampkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:31
CPC Classifications
H; H10; H10F; H10F19/00; H10F19/30; H10F19/31; H10F10/00; H10F10/10; H10F10/16; H10F10/169; H10F77/00; H10F77/40; H10F77/42; H10F77/484; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/52
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A solar cell, including a sheet glass substrate, plural actice photo-sensitive strips coated on one planar surface of said substrate, said active strips being separated by inactive areas and having diffusing surfaces superposed over said inactive areas on the other planar surface of said substrate, whereby radiation passing directly through said substrate to said active strips is undiffused and radiation passing through said diffusing surfaces is refracted in part to said active strips.
Claim 2
Dependent Claim
73 words
A solar cell, including a sheet glass substrate, plural actice photo-sensitive strips coated on one planar surface of said substrate, said active strips being separated by inactive areas and having diffusing surfaces superposed over said inactive areas on the other planar surface of said substrate, whereby radiation passing directly through said substrate to said active strips is undiffused and radiation passing through said diffusing surfaces is refracted in part to said active strips.
Claim 3
Dependent Claim
36 words
The combination according to claim 1, wherein said inactive areas include SnO x coated on said substrate and providing a negative electrode, and wherein said active strips include CdS 2 -CU 2 S microcrystalline photovoltaic heterojunctions.
Claim 4
Dependent Claim
77 words
In a photovoltaic system of the type having a transparent substrate, plural active photo-sensitive areas coated on one planar surface of said substrate, and inactive areas adjacent to said active photosensitive areas, the combination with said substratee of a diffusing means superposed over and in a plane essentially parallel with said inactive areas and of such configuration so that radiation passing through said diffusing means is diffused in part from said inactive areas to said photo-sensitive areas.
Claim 5
Dependent Claim
77 words
In a photovoltaic system of the type having a transparent substrate, plural active photo-sensitive areas coated on one planar surface of said substrate, and inactive areas adjacent to said active photosensitive areas, the combination with said substratee of a diffusing means superposed over and in a plane essentially parallel with said inactive areas and of such configuration so that radiation passing through said diffusing means is diffused in part from said inactive areas to said photo-sensitive areas.
Claim 6
Dependent Claim
17 words
The combination according to claim 3, wherein said diffusing means comprises an abraded portion of said substrate.
Claim 7
Dependent Claim
17 words
The combination according to claim 3, wherein said diffusing means comprises an etched portion of said substrate.
References Cited (Backward Citations)
US2904612A
Cited
US3880633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |