Edge-lit light fixture incorporating a downlight and having a uniform external appearance
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United States of America Patent
Stats
-
Jan 19, 2016
Grant Date -
Dec 20, 2012
app pub date -
Jun 14, 2011
filing date -
Jun 14, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A light fixture and method for producing downward-propagating illumination that includes an edge-lit lightguide illuminated from its perimeter. The lightguide has a light extractor, such as a dot pattern on its bottom surface, which extracts a portion of the light from inside the lightguide and directs it to a diffuser. The fixture also includes a downlight, arranged above the lightguide and producing a downlight beam downward. The downlight beam transmits from the top face through the bottom face of the lightguide and emerges from the bottom face of the lightguide as a directional beam. The downlight beam has a downlight beam footprint. The light extractor has a light extractor area that excludes the downlight beam footprint, and the diffuser has a diffuser area that also excludes the downlight beam footprint.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- F21V Class
- 12.62 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 19, 2027 |
