Invention Grant
- Patent Title: Virtual image display apparatus
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Application No.: US16524537Application Date: 2019-07-29
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Publication No.: US11307396B2Publication Date: 2022-04-19
- Inventor: Takashi Takeda , Masayuki Takagi , Toshiaki Miyao , 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: JPJP2018-142207 20180730
- Main IPC: G02B17/08
- IPC: G02B17/08 ; G02B27/01

Abstract:
A virtual image display apparatus includes a display device (image forming unit), a first mirror member configured to reflect imaging light from the display device, a second mirror member configured to reflect imaging light reflected by the first mirror member, and a third mirror member of a transmissive type configured to reflect imaging light reflected by the second mirror member toward a position of an exit pupil. One of the first mirror member and the second mirror member is a refractive reflective optical member that includes a refractive member including a refractive surface, and a mirror surface formed at a non-refractive surface of the refractive member.
Public/Granted literature
- US20200033573A1 VIRTUAL IMAGE DISPLAY APPARATUS Public/Granted day:2020-01-30
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B17/00 | 有或无折射元件的具有反射面的系统 |
G02B17/08 | .折反射系统 |