SOLID CONCENTRATOR WITH TOTAL INTERNAL SECONDARY REFLECTION

摘要

A system includes a solid light-transmissive element comprising a first surface and a second surface, first reflective material disposed on the second surface of the light- transmissive element, and a solar cell to convert light received at the first surface to electrical current. The light received at the first surface may pass through the light- transmissive element, reflect off the first reflective material and intercept an area of an interface between the first surface and an adjacent environment at an angle of incidence greater than arcsin(nx/ny), where nx = an index of refraction of the adjacent environment and ny = an index of refraction of the light-transmissive element at the first surface.