Automotive marker lamp
US5388035A · kind A · utility
51Cited by
21References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Jul 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicular marker lamp includes three light-emitting diodes located within a cup-shaped housing having a flat, transparent front wall or lens. Parallel V-shaped ribs in the rear surface of the lens form prisms that serve to horizontally spread the light beams emitted by the diodes. The ribs are angled differently so that the beam from each diode is spread to a different extent. A composite output beam is generated having a desired beam width and intensity. In a preferred arrangement, the width of the output beam is about 30.degree. in the vertical plane and 90.degree. in the horizontal plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.