Invention Grant
- Patent Title: Head-mounted display
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Application No.: US16505852Application Date: 2019-07-09
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Publication No.: US11275246B2Publication Date: 2022-03-15
- Inventor: Akira Komatsu , Masayuki Takagi , Toshiaki Miyao , Takashi Takeda , Tokito Yamaguchi
- 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: JPJP2018-130463 20180710
- Main IPC: G02B27/01
- IPC: G02B27/01

Abstract:
A head-mounted display includes a display device, a projection optical member, a prism member, and a light condensing and reflecting surface. The prism member includes a first prism, and a second prism that is disposed further toward an exit pupil side than the first prism. The first prism includes an incident surface, a reflection surface that totally reflects the image light, and a first joining surface that is joined with the second prism via a semi-transmissive reflection surface. The second prism includes a second joining surface that is joined with the first joining surface, and an opposing flat surface that is disposed parallel to the reflection surface to face the reflection surface and configured to transmit the image light, reflected by the semi-transmissive reflection surface and then by the light condensing and reflecting surface and thereafter passing through the semi-transmissive reflection surface.
Public/Granted literature
- US20200018966A1 HEAD-MOUNTED DISPLAY Public/Granted day:2020-01-16
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