Reduced package depth low profile headlamp
US5550716A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Nov 18, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V11/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reduced package depth low profile headlamp includes a light source emitting light in an elongated shape with a length longer than a width. The length forms a predetermined angle with respect to the horizontal axis to generate light within predetermined a cutoff. A converging lens receiving light from the light source has an optical axis. The lens has a spherical inner surface with a center and an elliptical outer surface having a first and second focal point. The light source is positioned substantially on the optical axis so that the light source is substantially at the center of the spherical inner surface and the first focal point of the elliptical outer surface is substantially coincident with the center of the spherical inner surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.