Batteries: thermoelectric and photoelectric – Photoelectric – Panel or array
Reexamination Certificate
2006-05-05
2010-12-14
Nguyen, Nam X (Department: 1795)
Batteries: thermoelectric and photoelectric
Photoelectric
Panel or array
C136S244000, C136S259000, C136S256000
Reexamination Certificate
active
07851693
ABSTRACT:
A Cassegrain-type concentrating solar collector cell includes primary and secondary mirrors disposed on opposing convex and concave surfaces of a light-transparent (e.g., glass) optical element. Light enters an aperture surface surrounding the secondary mirror, and is reflected by the primary mirror toward the secondary mirror, which re-reflects the light onto a photovoltaic cell. The photovoltaic cell is mounted on a central portion of heat spreader that extends over the primary mirror. The heat spreader transmits waste heat from the photovoltaic cell in a manner that evenly distributes the heat over the optical element, thereby maximizing the radiation of heat from the aperture surface into space. The heat spreader includes a thick copper layer formed on a flexible substrate (e.g., polyimide film) that is patterned with radial arms that facilitate mounting onto the convex surface of the optical element.
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patent
Fork David K.
Horne Stephen J.
Bever Patrick T.
Bever Hoffman & Harms LLP
Dinh Bach T
Nguyen Nam X
Palo Alto Research Center Incorporated
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