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Photovoltaic solar concentrator

United States Patent

December 11, 2012
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Microsystems Enabled Photovoltaics (MEPV)
A photovoltaic solar concentrator is disclosed with one or more transverse-junction solar cells (also termed point contact solar cells) and a lens located above each solar cell to concentrate sunlight onto the solar cell to generate electricity. Piezoelectric actuators tilt or translate each lens to track the sun using a feedback-control circuit which senses the electricity generated by one or more of the solar cells. The piezoelectric actuators can be coupled through a displacement-multiplier linkage to provide an increased range of movement of each lens. Each lens in the solar concentrator can be supported on a frame (also termed a tilt plate) having three legs, with the movement of the legs being controlled by the piezoelectric actuators.
Nielson; Gregory N. (Albuquerque, NM), Okandan; Murat (Edgewood, NM), Resnick; Paul J. (Albuquerque, NM), Cruz-Campa; Jose Luis (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
12/ 957,082
November 30, 2010
GOVERNMENT RIGHTS This invention was made with Government support under Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.