Light condensing device, photovoltaic power generation device and photo-thermal conversion device
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United States of America Patent
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Jun 2, 2015
Issued Date -
N/A
app pub date -
Apr 18, 2014
filing date -
Oct 19, 2011
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Abstract
A first prism member includes a plurality of light condensing structures that are formed at the front surface and condense the light having entered thereat and a plurality of deflecting structures which deflect light having been condensed via the light condensing structures and output the deflected light; a second prism member includes an entrance surface set so as to face opposite the rear surface of the first prism member; and the light having been deflected and output by the deflecting structures of the first prism member enters the second prism member through the entrance surface of the second prism member, is guided toward the exit surface as the light is reflected at the reflecting structure and at the entrance surface inside the second prism member, and exits through the exit surface.
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