Automotive lamp
US7137718B2 · kind B2 · utility
8Cited by
15References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2002 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jan 16, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S43/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle lamp includes a lamp chamber containing at least one light source in an interior thereof and having a light-emitting opening, a lamp cover is attached to the light-emitting opening, and a polarizing film is applied to an inner surface of said cover body. The lamp cover includes a transparent cover body having a configuration and size capable of covering at least a light emission surface of the lamp. The polarizing film has fine textured structures on a surface thereof for changing color of the exterior of the lamp when the lamp is in a lit condition compared to an unlit condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.