Illumination device
US8422094B2 · kind B2 · utility
0Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Sep 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illumination device comprising: an optical guide for receiving light emitted from a light source and guiding the light by repetitive transmission and reflection; a reflective member for reflecting light transmitting in the optical guide to an outside of the optical guide within the optical guide; a supplemental reflective member for reflecting light transmitting the reflective member and light leaked from the optical guide while evading the optical guide to an inside of the optical guide, transmitting the reflective member and light leak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.