Patent ID: 8669461

Claim:
A photovoltaic cell comprising: a dichromatic lens; and a plurality of sub-cells; wherein the dichromatic lens comprises: a plurality of zones arranged on a lens structure, each of said zones having a specified radius and varying height, said lens structure focusing propagating light applicable to any intensity distribution for a plurality of wavelengths, said lens structure focusing propagating light of a specified first wavelength to a first region and a specified second wavelength to a second region when a phase shift occurs because of varying heights of said zones; and wherein the plurality of sub-cells comprises: at least a first sub-cell positioned at the first region to absorb light from the plurality of zones comprising the first specified wavelength and at least a second sub-cell positioned at the second region to absorb light from the plurality of zones comprising the second wavelength, wherein the absorber layer of the first sub-cell is photosensitive to the first wavelength and the absorber layer of the second sub-cell is photosensitive to the second wavelength.