Headlight projection module for a motor vehicle

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

Active Publication Date: 2013-05-08
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 u

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

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Example Embodiment

[0057] The invention relates to the field of motor vehicle headlights. in Figure 19 Such a headlight is shown as an example in, and is indicated by reference numeral 1 as a whole. The headlight 1 includes a headlight housing 2, which is preferably made of plastic. In the light exit direction 3, the housing 2 has a light output hole 4, which is closed by a transparent cover plate 5, which is preferably made of glass or transparent plastic. Of course, the housing 2 and the cover 5 can also be made of other materials different from the above materials. The cover plate 5 may have an optically functional element (for example, a prism or a cylindrical lens) 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 formed as a so-called clear disk without optically active elements.

[0058] At least one projection module 10 according to the present invention is arranged in the interior of the headl...

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Abstract

The invention relates to a headlight projection module (10) for a vehicle, which is used for generating preset light distribution. 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. In order to enable the headlight projection module (10) to realize maximally effective structure and to illuminate a non-circular secondary optical unit (14) as uniform as possible with the whole surface, it is suggested that an optically active micro-structure (24) that refracts light be arranged in the beam path of the concentrated light in a virtual object position of the secondary optical unit (14). The micro-structure (24) has dimensions of the function-determining structural elements (26, 27) in the micrometer range, especially a height difference of the single structural elements (26, 27).

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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IPC IPC(8): F21S8/10F21V13/00F21W101/10F21Y101/02
CPCF21S48/125F21S48/1233F21S48/1283F21S48/1154G02B5/0215F21V5/002F21S48/1258F21S48/1159F21V5/008F21S48/1747F21S48/1241F21S41/143F21S41/153F21S41/24F21S41/25F21S41/26F21S41/275F21S41/663G02B3/00
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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