Concentrator photovoltaic device
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United States of America Patent
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Jun 10, 2014
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N/A
app pub date -
May 18, 2011
filing date -
May 21, 2010
priority date (Note) -
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Abstract
A concentrator photovoltaic device includes: an optical concentrator; a solar battery cell; a homogenizer; a sealant; and a light transmission preventing layer. The homogenizer has a trapezoidal shape in which a sectional area at the optical concentrator side is larger than a sectional area at the solar battery cell side, a relationship of nh>nf>nt is satisfied among a refractive index nh of the homogenizer, a refractive index nf of the sealant, and a refractive index nt of the light transmission preventing layer, a thickness (H) of the light transmission preventing layer is equal to or larger than 0.1 mm and equal to or smaller than 1.2 mm, and a relationship of 0.5≦b/a<1.0 is satisfied between a height (b) of the light transmission preventing layer and a height (a) of the sealant at a position where the light transmission preventing layer is formed.
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