LED-based light source reflector with shell elements
US8770800B1 · kind B1 · utility
7Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2014 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Mar 11, 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.