Off-axis illumination LED luminaire
US9103953B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2011 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Mar 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This is directed to a LED light fixture having a shaped light guide array with a CPC reflector for directing light off-axis, and methods for constructing the same. A LED light fixture includes a LED module providing light and an elongated light guide array placed adjacent to the LED module. The elongated light guide array can include a curved outer surface through which light is emitted into an environment. To further control the output of light, and to direct light off-axis, the light guide array can include a CPC reflector disposed around a boundary or periphery of the light guide array. The CPC reflector can be angled such that light is directed at angles above a cut-off angle by which the reflector is rotated about a focus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.