Lighting device comprising photoluminescent plate
US8847481B2 · kind B2 · utility
3Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device including a photoluminescent plate may be provided that includes a light source and a photoluminescent plate disposed over the light source. The photoluminescent plate includes a base layer and a first phosphor layer. The base layer transmits light and has a first roughness on one surface thereof. The first phosphor layer is disposed on the one surface of the base layer and includes a first phosphor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.