Light assembly heater systems, apparatus, and methods
US11524621B2 · kind B2 · utility
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1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2021 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Oct 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/013
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heater system for an LED light assembly having a lens includes a flexible composite positioned around an outer surface of the lens. The flexible composite includes a polymer base layer, a plurality of conductive buses provided on the base layer, and a resistive layer electrically connecting the plurality of buses to form a circuit. The resistive layer includes conductor particles dispersed in a polymer matrix. The resistive layer has a crystalline first condition prior to applying electricity to one of the buses and an amorphous second condition in response to applying electricity to one of the buses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.