Patent US2182628A successfully refreshed from Google Patents.
EP0218997A2
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Power generating optical filter
Assignee: Energy Conversion Devices Inc
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Filing: 1986-10-02
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Granted: —
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Expires: 2006-10-02
Abstract
Abstract A power generating optical filter (30) specially tuned to (1) transmit at least portions of selected wavelengths of incident light and (2) generate electrical power from absorbed portions of selected wavelengths of incident light. FlG.
Inventors
- 👤 Stanford R. Ovshinsky
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 19:48
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/17; H10F10/172; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/1055; B32B17/10678; H10F19/00; H10F19/80; H10F77/00; H10F77/20; H10F77/244; H10F77/247; H10F77/40; H10F77/42; H10F77/488; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/52; Y02E10/548; Y10; Y10S; Y10S136/00; Y10S136/291
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
113 words
A power generating optical filter (30) including a transparent substrate (32); a first substantially transparent electrode (34) disposed upon at least designated areas of the substrate; a body of photovoltaic material (36) disposed on the first electrode; and a second substantially transparent electrode (38) disposed on the body of photovoltaic material, characterized in that: the first and second electrodes and the body of photovoltaic material cooperating to (1) generate and collect electron-hole pairs and (2) transmit at least a portion of selected wavelengths of radiation incident thereupon, the frequencies of said transmitted wavelengths substantially differing from the frequencies of wavelengths transmitted through a body of photovoltaic material of identical or substantially similar composition.
Claim 2
Dependent Claim
113 words
A power generating optical filter (30) including a transparent substrate (32); a first substantially transparent electrode (34) disposed upon at least designated areas of the substrate; a body of photovoltaic material (36) disposed on the first electrode; and a second substantially transparent electrode (38) disposed on the body of photovoltaic material, characterized in that: the first and second electrodes and the body of photovoltaic material cooperating to (1) generate and collect electron-hole pairs and (2) transmit at least a portion of selected wavelengths of radiation incident thereupon, the frequencies of said transmitted wavelengths substantially differing from the frequencies of wavelengths transmitted through a body of photovoltaic material of identical or substantially similar composition.
Claim 3
Dependent Claim
22 words
A filter as in Claim 1, wherein the transmission of wavelengths is substantially uniform over a significant portion of the visible spectrum.
Claim 4
Dependent Claim
19 words
A filter as in Claim 2, wherein the significant portion of the visible spectrum is 450 to 800 nanometers.
Claim 5
Dependent Claim
37 words
A filter as in Claim 1, wherein the photovoltaic body and the electrodes are tailored to exhibit an absorbtion edge at a preselected wavelength of the visible spectrum for the transmission of light of a desired color.
Claim 6
Dependent Claim
31 words
A filter as in Claim 1, adapted for use as a motorized vehicle window (92), the power generated by the photovoltaic body adapted to operate an electrical component of the vehicle.
Claim 7
Dependent Claim
31 words
A filter as in Claim 1, adapted for use as architectural building windows (102), the power generated by the photovoltaic body adapted to operate an electrical appliance associated with the building.
Claim 8
Dependent Claim
24 words
A filter as in Claim 1, further including a substantially transparent encapsulating layer (52) protectively disposed on the exposed surface of the second electrode.
Claim 9
Dependent Claim
11 words
A filter as in Claim 1, wherein the substrate is translucent.
Claim 10
Dependent Claim
30 words
A filter as in Claim 1, further including means (38, 36) for transmitting externally supplied electrical current to at least a portion of the filter for resistively heating said substrate.
Claim 11
Dependent Claim
29 words
A filter as in Claim 30, further including a second body of photovoltaic material (46) and wherein a transparent, electrically conductive layer (48) is ohmically disposed between adjacent bodies.
Claim 12
Dependent Claim
24 words
A filter as in Claim 10, wherein the bodies include photovoltaic regions having band gaps optimized to absorb different wavelengths of the solar spectrum.
Claim 13
Dependent Claim
21 words
A filter as in Claim 1, further including an infra-red reflective body, for preventing transmission of substantial portions of infrared radiation.
Claim 14
Dependent Claim
38 words
A filter as in Claim 12, wherein said infra-red reflective body is a heat mirror and includes a layer of material chosen from the group consisting essentially of transparent electrically conductive materials, thin metallic films and combinations thereof.
Claim 15
Dependent Claim
21 words
A filter as in Claim 1, further including an infra-red absorbing layer for preventing transmission of substantial portions of infra-red radiation.
Claim 16
Dependent Claim
28 words
A filter as in Claim 1, further including an optical tuning layer (44), said layer of an appropriate thickness adapted to modify the optical transmission of the filter.
Claim 17
Dependent Claim
31 words
A filter as in Claim 1, adapted for use as a camera lens (112), the power generated by the photovoltaic body adapted to drive the electronic circuitry associated with the camera.
References Cited (Backward Citations)
No citation records indexed.
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