Light-emitting device and lamp
US8421111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2011 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Aug 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8516
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting device including: a base which is translucent; a semiconductor light-emitting element provided on the base; a sealing member for sealing the semiconductor light-emitting element and including a first wavelength conversion material for converting a wavelength of light emitted by the semiconductor light-emitting element to a predetermined wavelength; and a groove provided on a side of the semiconductor light-emitting element, recessed from a top surface of the base on which the semiconductor light-emitting element is provided or a back surface of the base which is a surface opposite to the top surface, and for holding a second wavelength conversion material for converting the wavelength of the light emitted by the semiconductor light-emitting element to the predetermined wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.