Invention Grant
- Patent Title: Image display apparatus
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Application No.: US15703338Application Date: 2017-09-13
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Publication No.: US10310165B2Publication Date: 2019-06-04
- Inventor: Osamu Yokoyama
- 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: JP2016-189255 20160928; JP2016-255069 20161228
- Main IPC: G02B27/01
- IPC: G02B27/01 ; F21V8/00

Abstract:
An image display apparatus includes an image display device configured to emit image light, a light guide member, a projection lens configured to project the image light toward the light guide member, and a light extracting unit provided on the light guide member, the light extracting unit being configured to extract the image light guided in the light guide member toward an exit pupil. The light extracting unit includes a first edge located at an end portion of the light extracting unit on the light incident section side and a second edge located at an end portion on the opposite side, and is capable of transmitting see-through light having been transmitted in the light guide member toward the exit pupil, and at least one of the first edge and the second edge is located outside a see-through visual field range in which the see-through light passes through.
Public/Granted literature
- US20180088271A1 IMAGE DISPLAY APPARATUS Public/Granted day:2018-03-29
Information query