Invention Grant
- Patent Title: Polarization adaptive waveguide HUD
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Application No.: US17481900Application Date: 2021-09-22
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Publication No.: US12111469B2Publication Date: 2024-10-08
- Inventor: Thomas A. Seder , Kai-Han Chang
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Vivacqua Crane, PLLC
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G02B5/30 ; G03H1/00

Abstract:
A head-up display system includes a hologram projector adapted to project a holographic image, a waveguide positioned in front of the hologram projector, wherein the holographic image projected by the hologram projector passes through the waveguide, a glare control prism positioned in front of the waveguide assembly, and a waveplate positioned between the waveguide and the glare control prism, the waveplate adapted to adjust the polarization of the holographic image.
Public/Granted literature
- US20230091935A1 POLARIZATION ADAPTIVE WAVEGUIDE HUD Public/Granted day:2023-03-23
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