Patent ID: 8736738
Filing Date: 2014-05-27
Classification: G02B,H04N

Abstract:
1. An optical lens, comprising: an optically effective portion for converging light passing therethrough, the optically effective portion comprising a first surface, a second surface and a third surface interconnected between the first and second surfaces, the first surface and the second surfaces being plane surfaces and parallel with each other, the third surface being a convex surface; and a peripheral portion surrounding the optically effective portion, the peripheral portion having a fourth surface substantially perpendicular to the first and second surfaces, the third surface being convex away from the fourth surface, the first surface intersecting the fourth surface at a first side, the second surface intersecting the fourth surface at a second side, the first side and the second side having a same length, the length being greater than a distance between the first side and the second side, wherein the third surface intersects the fourth surface at a third side and a fourth side, the third and fourth sides being outwardly curved, the first side, the third side, the second side and the fourth side connected end to end.