Lighting device
US8227964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2011 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Jun 3, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a light emitting module, a member disposed on the light emitting module, a cover surrounding the light emitting module and the member, and a heat sink. The light emitting module includes a substrate and a light emitting diode disposed on the substrate. The member includes a base having a hole configured to receive the light emitting diode and a projection configured to reflect light from the light emitting diode. A diameter of the base is greater than a maximum diameter of the projection. The heat sink includes an upper portion having a flat surface on which the substrate is disposed and a lower portion having a plurality of grooves formed on a side surface of the heat sink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.