Light source module
US9348085B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jan 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0078
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light source module includes a plurality of light emitting units, and each of the light emitting units includes a reflection plate, a light extraction plate, a sidewall structure, a light source, and a diffusion plate. The light extraction plate has a plurality of first holes, and the light extraction plate and the reflection plate are opposite to each other. The sidewall structure having a plurality of second holes is located between the reflection plate and the light extraction plate, and the reflection plate, the light extraction plate, and the sidewall structure together constitute a first light guiding cavity. The light source is located in the first light guiding cavity and adjoins the sidewall structure. The diffusion plate is located above the light extraction plate, and a second light guiding cavity is formed between the light extraction plate and the diffusion plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.