Title:
LIGHT MODULE
Document Type and Number:
WIPO Patent Application WO/2014/072226
Kind Code:
A1
Abstract:
The invention relates to a light module for motor vehicle headlamps (10), comprising a laser light source (12) for emitting a primary light bundle (14) in a primary spatial angle sector about a primary beam axis (16), a photoluminescent element (18), which is arranged in such a way that the primary light bundle (14) that can be emitted by means of the laser light source (12) hits the photoluminescent element (18) and which is designed in such a way that a secondary light distribution (20) can be emitted as a result of the incident primary light bundle (14) by utilizing photoluminescence. The light module also comprises an emission optical device (22), which is designed in such a way that the secondary light distribution (20) can be converted into an emission light distribution of the light module (10). A detecting device (34) is provided, which is designed and arranged in such a way that the detecting device can detect when the radiation intensity of light bundles that extend in the beam path downstream of the photoluminescent element (18) in the primary spatial angle sector about the primary beam axis (16) exceeds a safety limit.
Inventors:
BRENDLE MATTHIAS (DE)
Application Number:
PCT/EP2013/072825
Publication Date:
May 15, 2014
Filing Date:
October 31, 2013
Export Citation:
Assignee:
AUTOMOTIVE LIGHTING REUTLINGEN (DE)
International Classes:
B60Q1/14; B60Q1/00; B60Q11/00; F21S8/10; F21Y101/02
Foreign References:
| US20110063115A1 | 2011-03-17 | |||
| US20110084609A1 | 2011-04-14 | |||
| US20120224384A1 | 2012-09-06 | |||
| US6883947B1 | 2005-04-26 |
Other References:
None
Attorney, Agent or Firm:
DREISS Patentanwälte (DE)
Download PDF: