Invention Grant
- Patent Title: Laser projector and diffractive display device
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Application No.: US16954864Application Date: 2018-12-14
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Publication No.: US11435592B2Publication Date: 2022-09-06
- Inventor: Kasimir Blomstedt , Juuso Olkkonen , Mika Aikio
- Applicant: DISPELIX OY
- Applicant Address: FI Espoo
- Assignee: DISPELIX OY
- Current Assignee: DISPELIX OY
- Current Assignee Address: FI Espoo
- Agency: Maschoff Brennan
- Priority: FI20176163 20171222
- International Application: PCT/FI2018/050929 WO 20181214
- International Announcement: WO2019/122516 WO 20190627
- Main IPC: G02B27/10
- IPC: G02B27/10 ; F21V8/00 ; G02B26/08 ; G02B26/10 ; G02B27/12

Abstract:
The invention relates to a laser projector for presenting an image on a waveguide plane. The projector comprises a laser source (10, 10A, 10B, 10C) capable of emitting a polychromatic light beam (11) or a plurality of narrow-wavelength light beams (11A, 11B, 11C), and a guidance element (12A, 12B) for directing light emitted by the light source to different pupils (16A, 16B, 16C) of the waveguide plane, the different pupils being displaced with respect to each other in the waveguide plane. The invention also concerns a personal display device comprising such projector.
Public/Granted literature
- US20210088798A1 LASER PROJECTOR AND DIFFRACTIVE DISPLAY DEVICE Public/Granted day:2021-03-25
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