Lighting device and corresponding method
US9903998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2016 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Mar 12, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes an elongated profiled body including at least one light permeable material, e.g. a polymeric material, having a mouth portion where an e.g. white light radiation source assembly is arranged which includes one or more electrically powered light radiation sources facing the profiled body. The light radiation emitted by the light radiation source assembly propagates through the light permeable material of the profiled body. The material of the profiled body includes pigments and is at least in part light diffusive, whereby, by propagating through profiled body, the light radiation becomes a colored light radiation of a color determined by the pigments and with a homogeneous near field distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.