Projection-type light
US6386743B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/334
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A projection-type vehicle light includes a light source, a front lens that includes a plurality of aspherical lenses, and a reflector unit for directing reflected light rays incident to a corresponding aspherical lens. A plurality of elipse group reflector units can be used having a common first focus located round the light source, and a plurality of second foci respectively positioned between a focus of a corresponding aspherical lens and a front of the corresponding aspherical lens. The projection-type vehicle light provides a unique appearance with superior transparency of the front lens and a three dimensional feeling when viewed. The projection-type vehicle light also has a high efficiency of light rays reflected by a reflecting surface incident to an aspherical lens, and provides horizontally wide and highly uniform light distribution patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.