Indicator light comprising an optical piece fulfilling an indicating function autonomously
US6755556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2003 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention proposes an indicator light, in particular for a motor vehicle. The indicator light includes a central optical axis, a light source and a solid optical piece. The solid optical piece includes at least (1) an input face whose generatrix lies in a direction substantially parallel to the optical axis, (2) a rear reflection face whose generatrix lies in a direction substantially inclined towards the front, and (3) a front exit face. The exit face is formed by a series of elementary distribution dioptric elements, each of which is designed to form an elementary light beam whose image, on a screen placed in front of the indicator light, corresponds to the indicating function to be fulfilled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.