Lightguide and light source incorporating same
US9989691B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2010 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q1/302
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lightguide (100) is disclosed. The lightguide includes a plurality of light extractors (120-123). Each light extractor is designed primarily to extract light that propagates within the lightguide and is incident on the light extractor from a first direction and reflect light that propagates within the lightguide and is incident on the light extractor from a second direction different than the first direction, toward another light extractor, where the other light extractor extracts the reflected light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.