公开(公告)号：US09671088B2

公开(公告)日：2017-06-06

申请号：US14763837

申请日：2013-12-19

Applicant: OSRAM GmbH

Inventor： Yusheng Ming ,  Zhijun Ou ,  Guangwei Chi ,  Jing Lin

IPC: F21V1/00 ,  F21V11/00 ,  F21V13/04 ,  G02B19/00 ,  F21V7/00 ,  F21V5/04 ,  F21Y101/00

CPC classification number: F21V13/04 ,  F21V5/04 ,  F21V5/046 ,  F21V7/0091 ,  F21Y2101/00 ,  F21Y2115/10 ,  G02B19/0028 ,  G02B19/0061 ,  G02B19/0066

Abstract: Various embodiments may relate to a lens for an illumination device, including an incident surface, an emergent surface, and a reflective surface connected between the incident surface and the emergent surface. The lens includes a first axis as an optical axis of the lens, a second axis perpendicular to the first axis and extending in a longitudinal direction of the lens, the first axis and the second axis defining a symmetrical surface of the lens, and a third axis perpendicular to the symmetrical surface, a first portion of light from a light source is incident upon the incident surface, refracted by the emergent surface, and then emerges to form a first light beam, and a second portion of light from the light source is incident upon the incident surface, reflected by the reflective surface, refracted by the emergent surface, and then emerges to form a second light beam.