Lighting fixtures having enhanced heat sink performance
US8419238B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jul 5, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lighting fixtures having an enhanced heat sink performance are provided. A heat sink member is a unitary ring member. An outside surface of the heat sink member is disposed exterior of the lighting fixture and includes a plurality of outwardly extending fins. An inside surface of the heat sink member is disposed inside of the lighting fixture and includes a plurality of surfaces configured for mating engagement with a respective light source board. The heat sink member joins upper and lower globe portions of the lighting fixture. A reflector or a light pipe optionally is provided interior of the light fixture, providing illumination directional control. A polygon shaped lighting fixture provides a LED light output to cross in a plane proximate to a light center of the fixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.