公开(公告)号：US11226077B2

公开(公告)日：2022-01-18

申请号：US17142293

申请日：2021-01-06

Applicant: Young Optics Inc.

Inventor： S-Wei Chen ,  Yung-Ming Chuang

IPC: F21S41/25 ,  F21S41/40 ,  F21S41/20 ,  F21S41/153

Abstract: A projection device and a headlight for vehicle are provided. The projection device includes a light source, a light valve and a projection lens. The light source is used to emit a light beam. The light valve is located at the downstream of an optical path of the light source. The projection lens is located at the downstream of an optical path of the light valve and has an optical axis. The light valve is located on the optical axis of the projection lens and is tilted with respect to the projection lens to form an acute angle with the optical axis. The projection lens is used for projecting the light beam on a first projection surface and a second projection surface.