Patent ID: 8159761
Filing Date: 2012-04-17
Classification: G02B,H01L

Abstract:
1. Apparatus for concentrating light rays, said light rays originating from at least one source external to said apparatus and arriving at said apparatus, comprising: a plurality of openings, for enabling said light rays arriving at said apparatus to enter said apparatus, the distance between said at least one source of said light rays and said apparatus being substantially larger than the size of each one of said plurality of openings, individual beams of said light rays thereby each arriving at said apparatus substantially collimated; a respective Fresnel lens assembly for each one of said plurality of openings; and a receiver, for receiving said light rays which enter said apparatus, each said respective Fresnel lens assembly including: wherein each one of said plurality of openings is located in front of said respective Fresnel lens assembly, on the focal plane of said respective first Fresnel lens, centered on the focal point of said respective first Fresnel lens, wherein said receiver is located behind each said respective Fresnel lens assembly, on the focal point of said respective second Fresnel lens.