Light emitting module and planar light source
US11287105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2021 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Feb 5, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting module includes: a light guide member including: an emission region defined by a sectioning groove, a light source placement part located in the emission region, and a light adjusting hole that, in a schematic top view, is located between the sectioning groove and the light source placement part; and a light source disposed in the light source placement part. A refractive index of an inside of the light adjusting hole is lower than a refractive index of the light guide member. In the schematic top view, the light adjusting hole is positioned to intersect with a first straight line connecting a center of the light source and a farthest point in the sectioning groove, the farthest point being farthest from the center of the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.