Vehicle headlamp with light-emitting unit shifted from optical axis of lens
US7131758B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2004 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Jul 2, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There are provided five first lighting units for carrying out light irradiation to form a horizontal cutoff line. Each of the first lighting units has such a structure that includes a first light source formed by a light emitting diode provided to face forward in such a manner that one side of a rectangular light emitting chip is extended in a horizontal direction, and first projection lenses provided in front thereof and serving to project the image of the first light source as an inverted image forward from the lighting units. Consequently, the inverted image of the first light source projected forward from the lighting unit is an almost rectangular image having an upper edge extended almost horizontally. These are provided with a shift from each other in the horizontal direction, thereby forming a horizontal cutoff line. Two additional rows of lighting units provide light for an oblique cutoff line and a diffuse light pattern, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.