Indicator lights for motor vehicles
US6273591A · kind A · utility
9Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S43/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An indicator light for a motor vehicle has a point source, an intermediate screen which receives the light directly from the source, and a cover glass outside the screen. The intermediate screen comprises a series of optical cells, each of which has, on an internal face, a curved surface for straightening and spreading the light. Each cell further has, on an outer face, a set of at least two flat facets which are oblique with respect to a plane of the intermediate screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.