Secondary optic for concentrating photovoltaic device

摘要

A light concentrating optic for use with a photovoltaic device includes a light pipe having a first end portion for receiving light and a second end portion for outputting concentrated light. An optical element is coupled to the light pipe on the first end portion and configured to form an optical interface between the light pipe and the optical element. The optical element includes at least one light transmitting surface configured to redirect incident light entering the optical element to disperse the light to fall incident on side walls of the light pipe to increase homogeneity and intensity of light through the second end portion.

主权项

1. A light concentrating optic for use with a photovoltaic device, comprising:
a light pipe having a first end portion for receiving light and a second end portion for outputting concentrated light; an optical element coupled to the light pipe on the first end portion and configured to form an optical interface between the light pipe and the optical element, the optical element having at least one light transmitting surface facing toward the light pipe that is configured to redirect incident light entering the optical element to disperse the light to fall incident on side walls of the light pipe to increase homogeneity and intensity of light through the second end portion; and a convex lens coupled to the optical element via a first interface material, wherein the first interface material has an index of refraction different from the convex and the optical element.