Optical element for modifying the distribution of a light beam, for a motor vehicle headlight
US11487052B2 · kind B2 · utility
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0References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2019 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jul 5, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/43
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an optical element including a resin body having a functional surface covered with a reflective coating capable of reflecting light beams, the reflective coating including a copper layer covering at least the functional surface, a nickel layer covering the copper layer, and a chromium layer covering the nickel layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.