Vehicle headlight including a plurality of led lighting device units
US7316495B2 · kind B2 · utility
21Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2004 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Jul 21, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A headlight has a plurality of lighting device units and a unit support member that supports the plurality of lighting device units. Each lighting device unit has a projection lens, a light emitting diode arranged behind a rear side focus of the projection lens, and a rectilinear propagation blocking member that is arranged in a vicinity of the rear side focus, and blocks a rectilinear propagation of a portion of light emitted from the light emitting diode so as to form a cutoff line. The projection lens and the rectilinear propagation blocking member are integrally formed as a light control member in each light device unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.