Light source and light plate for light emitting module
US11402691B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 2021 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | May 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light emitting module comprising a light guide plate and a light source. The light guide plate has a polygonal shape with a plurality of corners in a plan view. The light guide plate has a first primary face which serves as an emission face, a second primary face opposing the first primary face, and a recessed portion in the second primary face. The light source is disposed in the recessed portion. The recessed portion has an opening on the second primary face, and a bottom face having a polygonal shape in a plan view. The light source has lateral faces along sides of the bottom face of the recessed portion. In a plan view, diagonal lines connecting opposing corners of the first primary face intersect with the sides of the bottom face of the recessed portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.