公开(公告)号：US11822219B2

公开(公告)日：2023-11-21

申请号：US17361652

申请日：2021-06-29

申请人： Hisense Laser Display Co., Ltd.

发明人： Boyu Zhou ,  Changming Yang ,  Xintuan Tian ,  Wenbang Cai ,  Haijun Yin ,  Jian Zhang

IPC分类号： G03B21/14 ,  H04N9/31 ,  G03B21/20

CPC分类号： G03B21/145 ,  G03B21/142 ,  G03B21/2066

摘要： A projector includes a shell, a light source, an optical machine, a projection lens and an auxiliary positioning device. The light source is configured to provide illumination beams. The optical engine is configured to modulate the illumination beams based on received image signals to obtain projection beams. The projection lens is configured to project the projection beams on a projection plane for imaging. The auxiliary positioning device is connected to the shell and is configured to locate a position the projector. The auxiliary positioning device includes a positioning rod which includes a first end and a second end opposite to the first end; the first end of the positioning rod is connected to the shell, and the second end of the positioning rod is configured to abut against a reference object that is at a fixed position relative to the projection plane.