Patent ID: 9323030
Filing Date: 2016-04-26
CPC Classification: G02B

Claim Text:
1. An optical focusing system, comprising: a) a lens group; b) a first reflective optical element; c) a second reflective optical element; and d) an optical sensing imaging surface; wherein: the first reflective optical element comprises a first incident surface, a first reflective surface, and a first emergent surface; the second reflective optical element comprises a second incident surface, a second reflective surface, and a second emergent surface; the second emergent surface is aspherical and has a wavy shape; the second emergent surface comprises a first convex part, a second convex part, and a concave part; the concave part is disposed between the first convex part and the second convex part; the first reflective optical element is disposed on an object end and the second reflective optical element is disposed at an image end, for reflecting light rays; and the optical sensing imaging surface is disposed at an emergent surface of the second reflective optical element disposed at the image end.