Edge-lit light panel having a downlight within a lined indentation in the panel
US9140420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2011 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Sep 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light fixture and method for producing downward-propagating illumination are disclosed. A downward-facing panel may produce diffuse light. The panel may be generally flat and may have an indentation, where the indentation may have a lining that also produces diffuse light. The panel and the lining may have essentially the same luminance, so that the indentation may be less visible for orientations other than directly below the indentation. The fixture may have a downlight recessed into the indentation, which may produce a directional beam that emerges downward from within the indentation. The directional beam may have a brightness controllable separately from the diffuse light, such as a dedicated dimmer switch. The indentation may be at the center of the panel. The panel may be incorporated into a ceiling tile, and may be bundled as part of a kit that can also include ceiling tiles with panels that don't have a downlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.