Patent ID: 8487179
Filing Date: 2013-07-16
Classification: F24S,H01L,Y02E

Abstract:
1. An apparatus for increasing photovoltaic cell efficiency, comprising: a first photovoltaic cell; a second photovoltaic cell, positioned adjacent to the first photovoltaic cell; a first filter positioned adjacent to and abutting the first photovoltaic cell at a first angle to the first photovoltaic cell; a second filter positioned adjacent to and abutting the second photovoltaic cell at a second angle to the second photovoltaic cell, the second filter operable to reflect light into the first filter; a first mirror positioned adjacent to and abutting the first photovoltaic cell at a third angle to the first photovoltaic cell; and a second mirror positioned adjacent to and abutting the second photovoltaic cell at a fourth angle to the second photovoltaic cell.