Patent · US Active

Projection lens for use in an LED module for a motor vehicle headlamp, and an LED module and motor vehicle headlamp having a projection lens of this type

US9476558B2 · kind B2 · utility

2Cited by

1References

17Claims

0Family size

Assignee

Automotive Lighting Reutlingen GmbH · DE

Inventors

Emil P. Stefanov · Eßlingen, DE
Christian Buchberger · Reutlingen, DE
Markus Kiesel · Reutlingen, DE
Martin Licht · Round Rock, US

Key dates

Filing date	Sep 4, 2014
Grant date	Oct 25, 2016
Priority date	—
Expiry date	May 15, 2035

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 lens for use in an LED module of a motor vehicle headlamp. The LED module has a light source in the form of an LED matrix including numerous LED chips disposed in a matrix adjacent to and/or above one another, a primary lens including numerous primary lens elements disposed in a matrix adjacent to and/or above one another for bundling light emitted from the light source, and a projection lens. The projection lens projects a light exit surface of the primary lens to generate a predefined light distribution on a surface in front of the vehicle. The projection lens is designed such that it generates at least two separate images of the light exit surface of the primary lens on its image side, which are offset to one another in the horizontal direction.

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