Waveguide having unidrectional illuminance
US10422939B2 · kind B2 · utility
18Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2016 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Nov 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2013/1827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A luminaire includes an optical waveguide having a first surface and a second surface opposite the first surface, and a light source associated with the optical waveguide. At least about 80% of light produced by the light source is directed by the waveguide into an illumination distribution emitted from the first surface of the optical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.