Patent ID: 9678320
Date: 2017-06-13
CPC Classifications: G01J,G02B

Claim:
1. A lens, comprising: at least one object-side refractive surface; at least one image-side refractive surface; and a reflective surface oriented obliquely to an optical axis of the lens, wherein the reflective surface is arranged between the at least one object-side refractive surface and the at least one image-side refractive surface, wherein the reflective surface is arranged at a base of an opening extending into the lens, wherein the reflective surface is configured to partially reflect a luminous flux incident on an object side of the lens towards an edge region of the lens, wherein the lens comprises a plurality of reflective surfaces arranged between the at least one object-side refractive surface and the at least one image-side refractive surface; and wherein the lens is a honeycomb condenser lens with a plurality of object-side refractive surfaces and a plurality of image-side refractive surfaces.