Headlamp assembly having a heat sink structure and wire heating element for removing water based contamination
US8899803B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2011 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Jan 8, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A headlamp assembly having a mechanism for reducing water based contamination is disclosed. A headlamp assembly includes a lens affixed to a housing having an inner surface and an outer surface, a wire heating element embedded within the inner surface of the lens, wherein the wire heating element is electrically coupled to a circuit board. An encapsulation layer is disposed over the wire heating element and a thermistor is affixed to the lens for sensing when the lens reaches a predetermined condition. The thermistor is electrically coupled to the circuit board and a micro-controller is provided for activating or deactivating the wire heating element based on the predetermined condition sensed by the thermistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.