System and method of generating perceived white light
US10047929B2 · kind B2 · utility
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2References
13Claims
0Family size
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Key dates
| Filing date | Sep 16, 2015 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Sep 7, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method of generating perceived white light by laser. The system comprises a laser, a phosphoric substrate, and optionally a diffraction grating. In one embodiment, a blue laser beam from the laser penetrates the phosphoric substrate to create perceived white light in a Gaussian distribution appropriate for emergency lighting. In another embodiment, the blue laser beam is split into multiple beams by the diffraction grating. The multiple beams penetrate the phosphoric substrate to create perceived white light in a Gaussian distribution appropriate for emergency lighting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.