Display device emitting a light flux and mobile apparatus including the display device
US8262232B2 · kind B2 · utility
1Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Oct 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device is provided that includes: a projection unit emitting a light flux including image information; and a divergence angle controlling unit controlling a divergence angle of the light flux emitted from the projection unit to not more than a prescribed angle. The divergence angle controlling unit includes a transmission unit transmitting the light flux emitted from the projection unit and a light shielding unit shielding part of the light flux, and the part of the light flux is shielded by the light shielding unit so that the divergence angle of the light flux is controlled to not more than a prescribed angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.