Lighting source using solid state emitter and phosphor materials
US11028979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2016 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting apparatus includes a base, a first semiconductor radiation emitting diode, having a top surface and a side wall, disposed on the base, a transparent structure disposed on the base and surrounding the side wall and covering the top surface, and a phosphor structure placed within the transparent structure surrounding the side wall and covering the top surface. The first semiconductor radiation emitting diode has a width smaller than that of the base and is configured to emit a light which can be converted into a forward transferred down-converted radiation light and a back transferred down-converted radiation light by the phosphor structure. At least a portion of the forward transferred down-converted radiation light and the back transferred down-converted radiation light are emitted toward the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.