Light emitting device
US7166873B2 · kind B2 · utility
17Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2003 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Apr 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light emitting device includes a semiconductor laser chip which emits a laser beam; a coherence reducing member which receives the laser beam and reduces coherence of the laser beam to generate a lower coherence light beam; and a package which houses the laser chip and the coherence reducing member, the package having an opening; wherein the laser beam emitted from the laser chip is converted into a lower coherence light beam by the coherence reducing member, and the lower coherence light beam is outputted through the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.