Planar light source
US9482809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jul 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A planar light source including an LGP and first and second light sources are provided. The LGP has a first surface and a second surface opposite to each other and a first groove and a second groove. The first groove and the second groove are respectively located on the first surface and the second surface, and are respectively located at two sides of a center line of the LGP, where the center line equally divides the first surface and the second surface. The first groove has a first side surface and a first light incident surface, and the second groove has a second side surface and a second light incident surface, where the light sources are disposed in the grooves. The light sources are suitable for respectively providing a light beam entering the LGP through the corresponding light incident surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.