Safe laser light
US11316321B1 · kind B1 · utility
1Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2020 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Jan 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/34333
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a device and method for a laser based light source using a combination of laser diode or waveguide gain element excitation source based on gallium and nitrogen containing materials and wavelength conversion phosphor materials designed for inherent safety. In this invention a violet, blue, or other wavelength laser diode source based on gallium and nitrogen materials is closely integrated with phosphor materials, such as yellow phosphors, to form a compact, high-brightness, and highly-efficient, light source with closed loop design features to yield the light source as an eye safe light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.