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Automotive headlights for generating main and auxiliary light distributions

A technology for auxiliary lighting and automobiles, which is applied in the direction of motor vehicles, headlights, electric light sources, etc., and can solve problems such as no longer being recognizable

Active Publication Date: 2016-09-07
ZKW GRP GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the dark, when the main luminous unit, usually the dipped beam, is switched on, the illuminated area of ​​the auxiliary luminous unit is illuminated by the main light and is no longer recognizable

Method used

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  • Automotive headlights for generating main and auxiliary light distributions
  • Automotive headlights for generating main and auxiliary light distributions
  • Automotive headlights for generating main and auxiliary light distributions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 1 Shown is a lens 3 for a main lighting unit, for example for a low beam lighting unit, which is embodied as a projection module and has, for example, a light source, a reflector and a projection lens.

[0036] Light L irradiated onto the light incident surface 3a of the lens from a not shown light source, if necessary via a likewise not shown reflector 入射 part is reflected (L 反射1 ), for example about 4% of the incident light flux is reflected. In addition, the light is reflected on the light exit surface 3b when exiting from the lens 3 through the light exit surface 3b (L 反射2 ), and additional reflections occur internally. Again these reflections add up to about 4%, so that about 92% of the incident ray exits the lens (L 出射 ) and is used to generate the main light distribution.

[0037] Due to these reflections on the one hand light is lost and on the other hand the lens appears bright (illuminated).

[0038] figure 2A motor vehicle headlight 100 is show...

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Abstract

The present invention relates to a car headlight comprising a light emitting unit for producing the function of a main light, the light emitting unit is composed of a light source and a lens, the lens projects the light emitted by the light source distributed as a main light in the state where the light emitting unit is installed in the car into the area in front of the car as the main light distribution; and include an auxiliary lighting unit designed to produce an auxiliary lighting distribution, the auxiliary lighting unit is arranged so that the lighting of the auxiliary lighting unit during the operation of the auxiliary lighting unit or It is said that the area emitting light is arranged optically close to the lens of the light emitting unit of the main light. According to the invention, the lens of the main light emitting unit has an antireflection coating at least partially on its light incident surface, and / or the lens of the main light emitting unit has an antireflective coating at least partially on its light exit surface, and The auxiliary lighting unit is switched on during lamp operation.

Description

technical field [0001] The invention relates to an automobile headlight comprising at least one main lighting unit for producing a main lighting function, wherein said main lighting unit is composed of at least one light source and at least one lens such as a projection lens (condensing lens) , the at least one lens images the light emitted by the at least one light source as the main light distribution into the area in front of the car as the main light distribution in the state where the main light-emitting unit is installed in the car, and the headlight also includes a design At least one auxiliary light-emitting unit for producing auxiliary light distribution, wherein the at least one auxiliary light-emitting unit is arranged such that the light-emitting or light-emitting area of ​​the auxiliary light-emitting unit is optically close to the main light-emitting unit during operation of the auxiliary light-emitting unit The at least one lens of the lighting unit is provided....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10F21V5/04G02B1/11F21W101/02F21W107/10
CPCB60K11/04B60Q1/0047B60Q1/28B60Q2400/30F21S41/275B60Q1/381
Inventor M.丹纳A.鲁格
Owner ZKW GRP GMBH
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