公开(公告)号：US11435658B2

公开(公告)日：2022-09-06

申请号：US17351468

申请日：2021-06-18

Applicant: TRIPLE WIN TECHNOLOGY (SHENZHEN) CO. LTD.

Inventor： Shih-Che Lin ,  Tao Wang ,  Yong-Bo Luo

IPC: G03B21/20 ,  H04N9/31 ,  G03B21/28

Abstract: A projection module includes a light source, a reflective structure, and an optical structure. The light source emits laser light. The reflective structure includes a first reflective element and a second reflective element. The optical structure includes a first optical element and a second optical element. The reflective structure is disposed between the laser source and the optical structure. The first reflective element reflects a portion of the laser light towards the second reflective element, and transmits a remaining portion of the laser light towards the second optical element. The second reflective element reflects the laser light from the first reflective element towards the first optical element. The first optical element and the second optical element cooperatively project the laser beam towards an object.