Apparatus for controlling the re-distribution of light emitted from a light-emitting diode
US9964280B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Mar 18, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Mar 18, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for re-distributing light emitted from a light source using an optical element is described. The optical element is manufactured using a bulk matrix material, and diffusing particles and/or scattering particles are embedded within the bulk material. The optical element is coupled to the light source to capture emitted light and redistribute the light in a desired angular distribution pattern depending on the ratio of total weight of diffusing particles to total weight of scattering particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.