Lighting device having forward directed heat sink assembly
US7918578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2009 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Apr 18, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A headlamp lighting device is provided that allows for the adjustment of the size of the light beam and forward heat dissipation. The lighting device includes a housing, a light source provided on the housing for generating a light beam, an inner thermally conductive heat sink, and an outer heat sink member. The inner thermally conductive heat sink is disposed in thermal relationship with the light source. The outer heat sink member is in thermal heat transfer relationship with the inner heat sink and disposed generally forward of the rear end of the housing for directing thermal energy generated by the light source towards the front end of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.