Hollow lightguide having multiple reflectors
US9261643B2 · kind B2 · utility
0Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2010 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Apr 30, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2804
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lightguide is disclosed. The lightguide includes a staircase shape optical construction that includes a plurality of light reflecting risers. At least two of the risers include non-parallel light reflecting portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.