公开(公告)号：US20200018460A1

公开(公告)日：2020-01-16

申请号：US16453926

申请日：2019-06-26

Applicant: NICHIA CORPORATION

Inventor： Wataru KITAHARA ,  Yoshinori MOMOSE ,  Wataru OGURA

IPC: F21V7/00 ,  F21V8/00 ,  G02B3/08 ,  F21V7/04

Abstract: An optical device comprises: at least one first reflecting surface disposed so as to reflect first light that has a light distribution having an optical axis parallel to a first axis, to an arc-shaped first region surrounding the first axis; and a second reflecting surface and a third reflecting surface that are disposed such that the second reflecting surface and the third reflecting surface meet each other on the first axis, and such that the first reflecting surface is disposed between the second reflecting surface and the third reflecting surface.