Image projection device and projection device
US10627631B2 · kind B2 · utility
0Cited by
3References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 28, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Aug 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is an image projection device that includes: a light source 12 that emits a laser beam 34; a scanning mirror 14 that two-dimensionally scans the laser beam 34 emitted from the light source 12; and a projection mirror 24 that projects scanned light onto a retina 26 of an eyeball 22 of a user to project an image onto the retina 26, the scanned light being composed of the laser beam 34 that has been scanned by the scanning mirror 14, wherein the laser beam 34 emitted from the light source 12 is scanned by using a part of an operating range of the scanning mirror 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.