Display apparatus and display method
US10884242B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2018 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Feb 16, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0121
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A display apparatus includes: a display surface configured to display an image; and a concave mirror configured to reflect light beams from the display surface toward a transparent member, in which a virtual image of the image is presented by the transparent member. An optical path after a first light beam is reflected in the transparent member coincides with an optical path after a second light beam is reflected in the transparent member by the reflection in the concave mirror, the first light beam reaching the transparent member from one point on the display surface and reflecting on a front surface of the transparent member, and the second light beam reaching the transparent member from the one point and reflecting on a rear surface of the transparent member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.