Invention Grant
- Patent Title: Virtual image display device and optical unit
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Application No.: US17388570Application Date: 2021-07-29
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Publication No.: US12061340B2Publication Date: 2024-08-13
- Inventor: Daiki Matsumoto
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP 20129069 2020.07.30
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G02B5/10 ; G02B26/08

Abstract:
A virtual image display device includes an image light generation device generating image light, a transmissive tilted mirror reflecting the image light from the image light generation device, and a concave transmissive mirror having a concave shape and reflecting, toward the transmissive tilted mirror, the image light reflected by the transmissive tilted mirror to form an exit pupil. The virtual image display device further includes an absorber layer or an absorption film on an external side of a transmissive reflective surface formed in the concave transmissive mirror.
Public/Granted literature
- US20220035163A1 VIRTUAL IMAGE DISPLAY DEVICE AND OPTICAL UNIT Public/Granted day:2022-02-03
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