Patent ID: 8063352

Claim:
A color separation filter for solid state image sensor comprising: a micro lens array adapted to collect light from a full color spectrum light source; a mask layer attached to said micro lens array wherein said mask layer comprises plurality of openings, each opening positioned in front of a single micro lens from said micro lens array; a first array of prisms wherein each prism from said array of prisms is positioned in front of each of said plurality of openings; a second array of prisms attached to said first array of prisms with an optical glue layer wherein each prism from said first array of prisms is positioned in front of a prism from said second array of prisms creating a symmetrical optical path for said color spectrum light source; an array of photo detectors arranged in a plurality of photo detector groups wherein each of said groups is coupled to a prism from said second array of prisms; and each photo detector in said plurality of photo detector groups is configured to receive a portion of said full color spectrum light propagating via said symmetrical optical path.