Fresnel solar concentrator array with centered universal pivots

Details Fresnel solar concentrator array with centered universal pivots Fresnel solar concentrator array with centered universal pivots

2011-01-11

2011-01-11

Phan, James (Department: 2872)

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

C359S221200, C359S853000, C359S742000, C126S600000, C126S684000

Reexamination Certificate

active

07866836

ABSTRACT:
This invention deals with novel method and apparatus for positioning and motion control of the optical elements (mirrors and lenses) of a Fresnel solar concentrator tracking array which approximately eliminates gravitational torque by use of a central universal pivot or gimbals. Linkage torque is produced by induced and/or permanent dipole coupling to an electronic grid to produce angular deflection, and rotational motion that is enhanced by the presence of highly polarizable material. This system is ideally suited for maximization of solar energy focused by the array onto a receiver. Since there are no mechanical linkages, the instant invention is applicable for fabrication from the mini- to the nano-technology realm. The elimination of gravitational torque by balancing the optical elements on a universal pivot or gimbals greatly reduces the power required for the optical elements to track the sun and focus sunlight onto a receiver.

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