Multiple mode light emitting device
US8657464B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Nov 2, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2113/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems of emitting different light from a multiple mode light emitting device are disclosed. An exemplary embodiment has a LED portion with a plurality of first LEDs and a plurality of second LEDs arranged in a first ring centered about a central axis, and a rotatable portion with a plurality of light conditioning elements arranged in a second ring centered about the central axis. The plurality of first LEDs emit and the plurality of second LEDs emit different types of light. Each light conditioning element receives and conditions light from one of the plurality of first LEDs when the light conditioning element is in a first position. Each light conditioning element receives and conditions light from one of the plurality of second LEDs when the light conditioning element is in a second position. The light conditioning elements may be reflector cups or may be lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.