Invention Grant
- Patent Title: Laser projector
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Application No.: US17587515Application Date: 2022-01-28
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Publication No.: US12078814B2Publication Date: 2024-09-03
- Inventor: Wei Li , Youliang Tian , Xintuan Tian
- Applicant: Hisense Laser Display Co., Ltd.
- Applicant Address: CN Shandong
- Assignee: Hisense Laser Display Co., Ltd.
- Current Assignee: Hisense Laser Display Co., Ltd.
- Current Assignee Address: CN Qingdao
- Agency: HAUPTMAN HAM, LLP
- Priority: CN 1910214208.6 2019.03.20 CN 1910214780.2 2019.03.20 CN 1910539489.2 2019.06.20
- Main IPC: G02B27/14
- IPC: G02B27/14 ; G02B26/06 ; G02B27/09 ; G03B21/00 ; G03B21/20 ; H01S5/00 ; H01S5/40

Abstract:
A laser projector includes a laser assembly, a beam combination mirror group and a phase delaying component. The laser assembly includes a red laser light emitting region, a blue laser light emitting region and a green laser light emitting region. Red laser light is polarized in a first direction, green laser light is polarized in a second direction, and blue laser light is polarized in a third direction. The beam combination mirror group combines the red laser light, the blue laser light and the green laser light. The phase delaying component is on a light emitting path of at least one of the red laser light, the blue laser light the green laser light, and changes a polarization direction of the at least one of the red laser light, the blue laser light or the green laser light before being output by the beam combination mirror group.
Public/Granted literature
- US20220155606A1 LASER PROJECTOR Public/Granted day:2022-05-19
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