Patent · US Active

Projection module of an automobile headlight

US7988345B2 · kind B2 · utility

7Cited by

3References

17Claims

0Family size

Assignee

Automotive Lighting Reutlingen GmbH · DE

Inventors

Ernst-Olaf Rosenhahn · Bodelshausen, DE
Ralf Ackermann · Kirchentellinsfurt, DE
Ulrike Schloeder · Reutlingen, DE
Henning Weinhold · Gomaringen, DE
Benjamin Stauß · Hamburg, DE

Key dates

Filing date	Aug 29, 2008
Grant date	Aug 2, 2011
Priority date	—
Expiry date	Mar 14, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a projection module of an automobile headlight. The module includes several semiconductor light sources to broadcast optical irradiation of a primary optics assembly to bundle the emitted irradiation, and a secondary optics assembly that projects the bundled irradiation to create the desired light distribution in front of the vehicle. In order to reduce the weight and dimensions of the projection module, it is proposed that the secondary optics assembly is formed as a multi-part complex lens that includes several lens segments. Each of these lens segments is assigned to at least one irradiation bundle of irradiation bundled from the primary optics assembly, and projects this assembly as partial distribution in front of the vehicle, whereby the overall distribution of the projection module results from overlapping the partial distributions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.