LED-based light source reflector with shell elements
US9528663B2 · kind B2 · utility
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19References
23Claims
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Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Oct 29, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical element that may be replaceably mounted to an LED based illumination device. The optical element includes a hollow shell reflector and a plurality of annular shell elements disposed within the hollow shell reflector at different distances from the input port of the optical element. An annular shell element that is closer to the input port of the optical element has a radius that is less than the radius of an annular shell element farther from the input port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.