Optical Differential Solar Tracking System

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United States of America Patent

APP PUB NO 20160047877A1
SERIAL NO

14459580

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system and method of using differential optical signals to track the orientation of a solar surface or surfaces is proposed. Two dispersive prisms or gratings arranged in a mirror-symmetric fashion are used to decompose light into its constituent colors, and the gain of a differential amplifier circuit based on the difference of the frequencies of single color collimated light produced by the two prisms or gratings is used to maintain the on-sun orientation of the solar surface or surfaces. The invention provides for a high-precision, low-cost solar tracking system. Preferably, the signal processing and tracking of solar surfaces is performed by a mobile robot that travels to multiple solar surfaces to minimize cost.

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Patent Owner(s)

Patent OwnerAddress
SOLARCITY CORPORATION3055 CLEARVIEW WAY SAN MATEO CA 94402

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chu, Kevin C Mountain View, US 4 161
Trujillo, Salomon J Redwood City, US 6 161

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