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Method for determining the zero position of a mirror arrangement in a vehicle headlight

A technology for headlights and vehicles, which is used to test the alignment of automobile headlights, headlights, vehicle components, etc., to achieve reliable calibration or detection.

Active Publication Date: 2019-12-10
ZKW GRP GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this only allows the determination of the motor position, wherein additional geometrical influences on the beam path, tolerances such as positioning of the optical components or twisting of the support frame are not detected.

Method used

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  • Method for determining the zero position of a mirror arrangement in a vehicle headlight
  • Method for determining the zero position of a mirror arrangement in a vehicle headlight
  • Method for determining the zero position of a mirror arrangement in a vehicle headlight

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Embodiment Construction

[0022] exist figure 1 The first embodiment of the present invention is further described in . In particular, the components that are important for the headlight according to the invention are shown, wherein it is clear that the motor vehicle (KFZ) headlight also contains many other components that enable its operation in the motor vehicle, for example Especially useful use in passenger cars (PKW) or motorcycles. The optical starting point of the headlight is a light source 1 which emits a light beam 2 and to which an actuating device 3 is assigned, wherein the actuating device 3 is used for supplying power to the light source 1 and for monitoring the light source or For example for controlling the temperature, and can also be provided for modulating the intensity of the irradiated light beam. "Modulation" is understood in connection with the present invention to mean that the intensity of the light source can be varied in the sense of being switched on and off, whether conti...

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PUM

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Abstract

In order to determine the zero position of an adjusting drive (14) for controlling the illumination range of a light module (10) in a vehicle headlight, light from a light source (1) is directed onto an absorbing surface (12). The absorption surface (12) has openings through which the light passes as a confined beam (17). The light module is rotated with respect to its angular position by means of the adjusting drive (14), wherein the intensity of the light beam (17) passing through the opening is detected by means of a photosensitive sensor (15) arranged on the absorbing surface (12) AFTER.

Description

technical field [0001] The invention relates to a headlight for a vehicle, for example a passenger car, which has one (or more) light modules (Lichtmodul) with at least one light source and at least one mirror arrangement (Spiegeleinrichtung), wherein the The light module is assigned an adjusting drive, by means of which the light module can be turned in order to set an angular position preset for operation. The invention also relates to a method for determining a null position of the angular position of a light module in a headlight of the type mentioned. Background technique [0002] Headlights with a mirror arrangement for deflecting the light and for forming a specific desired light pattern are known. Such a mirror arrangement can be a simple mirror, which can be flat or arched; or it can be realized as an array of micromirrors (so-called DLP, which stands for Digital Light Processor (Digital Light Processor). )). In many applications, the mirror arrangement together ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/36G01M11/06F21S41/675F21S41/40F21S41/657F21S41/24
CPCF21S41/60B60Q1/076B60Q1/10G01M11/06F21S41/675B60Q2200/38F21S41/24F21S41/36F21S41/40F21S41/657F21S41/285
Inventor P.马耶T.米特勒纳
Owner ZKW GRP GMBH