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Motor vehicle lighting module with combined low and high beam function and adjustable light source

A lighting module and motor vehicle technology, which is applied in the field of motor vehicle headlights and motor vehicle lighting, and can solve problems such as lack of luminosity

Active Publication Date: 2021-06-04
VALEO VISION SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, given that the lower part of the beam of type "high beam" is basically produced using a cut-off beam of type "low beam", it may exhibit a lack of luminosity in the lower part of the beam of type "high beam"

Method used

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  • Motor vehicle lighting module with combined low and high beam function and adjustable light source
  • Motor vehicle lighting module with combined low and high beam function and adjustable light source
  • Motor vehicle lighting module with combined low and high beam function and adjustable light source

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Experimental program
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Embodiment Construction

[0033] figure 1 is a schematic diagram of the lighting module according to the present invention. Module 2 comprises an optical axis 4 , a first optical system 6 , a second optical system 20 and a lens 18 . The first and second optical systems 6 and 20 face each other, one on each side of the optical axis 4 .

[0034] The first optical system 6 basically comprises a light source 8 and a reflective surface 12 arranged on a support 10 . The reflective surface 12 forms a half-shell in the half-space delimited by the support 10 . Advantageously, the support is substantially flat. Advantageously, the reflective surface 12 has an elliptical profile with two focal points F 1 and F 2 , a focal point (F 1 ) corresponds to the position of the light source 8, and the other focal point (F 2 ) is located at the cut-off edge 14 of the reflective surface 16 .

[0035] Similar to the first optical system 6 , the second optical system 20 basically comprises a light source 22 arranged o...

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Abstract

The invention relates to a motor vehicle lighting module (2), comprising: an optical axis (4); a first optical system (6) with at least one first light source (8), the system (6) being configured to form a a first illumination beam along an optical axis (4) of a horizontal cutoff; and a second optical system (20) having at least one second light source (22), said system (20) being configured to communicate with the first optical system ( 6) The combination produces a second illumination beam along the optical axis (4), which has a greater vertical extent than the first illumination beam. The first light source or plurality of first light sources (8) have a variable lighting power varying between a high level and a low level, the first lighting beam being produced at a low level of lighting power and the second lighting beam being produced at a high generated under the level of lighting power.

Description

technical field [0001] The invention relates to the field of lighting, in particular for motor vehicles. More specifically, the invention relates to the field of motor vehicle headlamps Background technique [0002] Published patent document US 2005 / 0068787 A1 discloses a lighting module comprising two optical systems arranged opposite to each other. Each of these two optical systems basically includes a light source and a reflective surface. The two light sources are arranged on two opposite faces of the common support. Each of the reflective surfaces is a surface of revolution in a half-space bounded by a common support. The two reflective surfaces thus form two half shells facing each other. One of the two optical systems is configured to form an illumination beam with a horizontal cut-off, corresponding to the so-called "low beam". To do this, the module includes a reflective surface with an edge called a "cut-off" edge, which is located at the focal point of the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/65F21V5/04F21V19/00F21V7/04F21V13/04F21V23/00F21W102/135F21W107/10
CPCF21S41/20F21S41/60F21V5/04F21V7/04F21V13/04F21V19/00F21V23/003F21W2107/10F21W2102/00F21S41/365F21S41/285F21S41/36F21S41/321F21S41/663F21S41/153F21S41/148B60Q1/14
Inventor 安托万·德拉姆勃特力吉恩-卢克·迈雷诺
Owner VALEO VISION SA