Headlight projection module for a motor vehicle

A technology for projection modules and headlights, applied in the direction of headlights, vehicle parts, vehicle lighting systems, etc., can solve the problem of different circular cross-sections, and achieve a large design effect

Active Publication Date: 2015-04-08
AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in modern headlight projection modules, the secondary optical unit 14 differs from the circular cross-section due to its design and / or position

Method used

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  • Headlight projection module for a motor vehicle
  • Headlight projection module for a motor vehicle
  • Headlight projection module for a motor vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The invention relates to the field of motor vehicle headlights. exist Figure 19 Such a headlight is shown by way of example in , and is indicated as a whole by the reference numeral 1 . The headlight 1 contains a headlight housing 2 which is preferably made of plastic. In the light exit direction 3 , the housing 2 has a light exit opening 4 which is closed by a transparent cover 5 , preferably made of glass or transparent plastic. Of course, the housing 2 and the cover plate 5 can also be made of other materials different from the above materials. The cover plate 5 can have optically active elements, such as prisms or cylindrical lenses, in order to spread the penetrating light in the horizontal and / or vertical direction. However, it is also conceivable that the cover plate 5 is designed as a so-called clear disk without optically active elements.

[0058] Arranged within the headlight housing 2 is at least one projection module 10 according to the invention, the d...

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Abstract

The headlight projection module (10) has a light source (11) for emitting light, a primary lens (12) for concentrating a part of the emitted light, and a secondary lens (14) for projecting a part of the concentrated light in a light emitting direction (3) of the projection module. An optically active micro structure (24) that refracts light is arranged in the beam path of the concentrated light in a virtual object position of the secondary lens. The micro structure has dimensions of the function-determining structural elements in the micrometer range. An independent claim is included for a motor vehicle headlight with a headlight housing.

Description

technical field [0001] The invention relates to a headlight projection module for a motor vehicle for generating a predetermined light distribution. The projection module contains: [0002] - a light source for emitting light; [0003] - a primary optical unit that bundles at least a portion of the emitted light; [0004] - A secondary optics unit which projects at least a part of the bundled light in the light emission direction of the projection module, for example onto a roadway ahead of the motor vehicle. Background technique [0005] New projection headlights now mainly use semiconductor light sources, especially light-emitting diodes (LEDs) as light sources. Light-emitting diodes, at least not yet, do not produce high luminous density values ​​such as occur in high-pressure gas discharge lamps. For this reason, light-emitting diodes are controllable in an extended dynamic range and can be operated at significantly lower temperatures. light is generated in the case ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10F21V13/00F21W101/10F21Y101/02
CPCF21S48/1283G02B3/00F21S48/1266G02B5/0215F21V5/002F21S48/1258F21S48/1159F21S48/1747F21V5/008F21S48/1241F21S41/143F21S41/153F21S41/24F21S41/25F21S41/26F21S41/275F21S41/663
Inventor 埃米尔·P·斯特凡诺夫马库斯·基赛尔恩斯特奥拉夫·罗森汉
Owner AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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