Apparatus for efficiently coupling light from a light source into a thin object
US8662727B2 · kind B2 · utility
3Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2009 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | May 17, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0041
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for efficiently coupling light from a light source into a thin object such as a rod or a sheet is disclosed. In an embodiment, the apparatus comprises a sheet and a linear light source placed along the edge of the sheet. The light from linear light source is coupled into the sheet using one or more concentrator blocks. In another embodiment, the apparatus comprises a rod and a point light source placed near one end of the rod. The light from point light source is coupled into the rod using one or more concentrator blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.