Automotive lamp
US9482402B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jun 6, 2012 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/148
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automotive lamp includes an LED, a substrate that mounts the LED, a reflector that reflects the light emitted from the LED, and an projection lens having an incident surface, which receives the light reflected by the reflector, and an emission surface that emits the light toward a front area of the automotive lamp. A fine asperity structure is formed on the incident surface of the projection lens. The fine asperity structure includes recesses or raised portions formed with the pitch less than or equal to the visible light wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.