Adiabatic secondary optics for solar concentrators used in concentrated photovoltaic systems
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United States of America Patent
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Nov 7, 2017
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N/A
app pub date -
Apr 4, 2014
filing date -
Apr 10, 2013
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Abstract
A solar concentrator for concentrating solar radiation toward a solar cell, a concentrated photovoltaic module including a solar concentrator and a solar cell, and a secondary optical element for use in a solar concentrator are provided. The solar concentrator includes a primary optical element for collecting and focusing the solar radiation, and a secondary optical element. The secondary optical element is arranged to receive the solar radiation collected and focused by the primary optical element and includes an input end, and output end, and an adiabatic light guide tapering from the input end toward the output end and configured for concentrating and adiabatically guiding the solar radiation between the input and output ends. Some embodiments of the present invention can be useful in solar photovoltaic applications where it is desirable to provide high acceptance angles while maintaining high concentration and optical efficiency levels.
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