Light module for a motor vehicle headlamp
US8465187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2010 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Jul 21, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/45
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a light module (23) for a motor vehicle headlight (2), for generating an adaptive light distribution. The light module (23) comprises a light source (30, 70, 71) for emitting light, a primary optical element (31, 73, 74) for focusing the emitted light, and a diaphragm arrangement (32, 32′) for implementing a variable effective upper edge (36, 36′), which can be introduced into a beam path of the emitted and/or focused light. To provide a simple and cost effective way to improve the visibility of the driver of the motor vehicle (1), but not result in a glare to other road users, it is proposed that the diaphragm arrangement (32, 32′) is designed to implement an effective upper edge (36, 36′) is formed, which brings about the generation of a lower beam light distribution (10) with substantially horizontal light-dark boundary (13) and with an illuminated region (14) formed at a specific horizontal position above the light-dark boundary (13), which region is delimited on the right-hand side and on the left-hand side by light-dark boundaries and has an extent in the horizontal and vertical directions of in each case a few angular degrees on a measuring screen ar…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.