Wide field of view concentrator

摘要

The present invention is a system that offers a capability to concentrate light from a large focal point onto a small spot on a detector. The system also offers off-axis capability should the system be moved, poorly pointed, off axis or jostled while in use. As designed, the present invention includes a half-ball lens having a front end and a back end, a compound parabolic concentrator (CPC) having a front end and a back end, wherein the front end of said CPC is adjacent to the back end of the half-ball lens such that the CPC is centered against the back end of the half-ball lens, and a detector, wherein the detector is adjacent to the back end of the CPC.

主权项

1. A device comprising:
a. a half-ball lens having a front end and a back end; b. a compound parabolic concentrator (CPC) having a front end and a back end, wherein said front end of said CPC is adjacent to said back end of said half-ball lens in immediate proximity such that said CPC is centered against said back end of said half-ball lens; and c. a high speed photo detector, wherein said high speed photo detector is adjacent to said back end of said CPC;
wherein the half-ball lens is configured to collimate, into the CPC, light focused by a Fresnel lens and incident at the half-ball lens at an angle exceeding an acceptance angle of the CPC, such that the light collimated into the CPC is concentrated on the high speed photo detector.