Light emitting module and lamp
US7282748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2005 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | May 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting module having a light-emitting efficiency. The light-emitting module that emits light includes a semiconductor light-emitting element that emits light; and a light transmission member that is provided to cover the semiconductor light-emitting element with materials for transmitting the light emitted from the semiconductor light-emitting element and forms a sub-wavelength grating for reducing reflection of the light on its outgoing face for sending the light incident from an interface facing said semiconductor light-emitting element to its outside in grid periods shorter than a wavelength of the light transmitted by the light transmission member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.