公开(公告)号：US20110157899A1

公开(公告)日：2011-06-30

申请号：US12713347

申请日：2010-02-26

Applicant: CHUN-CHENG KO

Inventor： CHUN-CHENG KO

IPC: F21V7/00 ,  F21S8/10

CPC classification number: H01H13/83 ,  G02B6/0018 ,  G02B6/0038 ,  G02B6/0061 ,  H01H2219/056 ,  H01H2219/062 ,  H01H2219/0622

Abstract: A light guide ring unit includes a first annular surface, a second annular surface opposite to the first annular surface and an inner side surface connecting the first annular surface and the second annular surface. The first annular surface defines a plurality of first elongated grooves extending along a radius of the first annular surface. The second annular surface defines a second groove extending along a radius of the second annular surface. The first annular surface receives light from a light source, and the light is reflected by the inner walls of the second groove.

Abstract translation: 导光环单元包括第一环形表面，与第一环形表面相对的第二环形表面和连接第一环形表面和第二环形表面的内侧表面。 第一环形表面限定沿着第一环形表面的半径延伸的多个第一细长槽。 第二环形表面限定沿着第二环形表面的半径延伸的第二凹槽。 第一环形表面接收来自光源的光，并且光被第二凹槽的内壁反射。