Light-emitting device with remote scattering element and total internal reflection extractor element
US9291763B2 · kind B2 · utility
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48References
26Claims
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Key dates
| Filing date | Sep 12, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Sep 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A variety of light-emitting devices are disclosed that are configured to output light provided by a light-emitting element (LEE). In general, embodiments of the light-emitting devices feature a light-emitting element, a scattering element that is spaced apart from the light-emitting element and an extractor element coupled to the scattering element, where the extractor element includes, at least in part, a total internal reflection surface. Luminaires incorporating light-emitting devices of this type are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.