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Optical structure of lighting device for motor vehicle headlamps

A technology of lighting equipment and optical structure, which is applied in the field of vehicle headlights and lighting equipment, and can solve problems such as undesired light effects and discomfort

Active Publication Date: 2018-08-07
ZKW GRP GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of such a light distribution, it has proven to be problematic that undesired light effects occur in the region of the segments that are necessarily adjacent to one another, in particular brightness fluctuations in this region, which are visible in the grid. structure, which may be perceived as uncomfortable by the vehicle occupant
[0013] In addition, there is usually always the problem of a clear light-dark boundary in this case

Method used

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  • Optical structure of lighting device for motor vehicle headlamps
  • Optical structure of lighting device for motor vehicle headlamps
  • Optical structure of lighting device for motor vehicle headlamps

Examples

Experimental program
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Embodiment Construction

[0135] First reference below Figure 1-6 , which—without limiting the subject matter of protection—illustrates a principled possibility of the arrangement of the optical structure according to the invention. The optical arrangement according to the invention can also be used in motor vehicles in other cases as the lighting device shown here.

[0136] figure 1 A lighting device 1 in the form of a projection system is schematically shown with a reflector 2 , a light source 3 , an (optional) masking arrangement (Blendenanordnung) 4 and a projection lens 5 with a curved outer side 5 a and a planar inner side 5 b.

[0137] figure 2 A lighting device 1 in the form of a reflective system is schematically shown with a reflector 2 , a light source 3 and a diffusing or covering plate 6 , reference numerals 6 a and 6 b designating the outside and inside of a glass pane 6 .

[0138] image 3 show figure 1 A schematic representation of the projection system of , wherein the optical s...

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PUM

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Abstract

The invention relates to an optical arrangement (100) of a lighting device (1) for a motor vehicle headlamp, said lighting device (1) being arranged for irradiating light, the light emitted from said lighting device (1) forming a predetermined a light distribution (LV1), wherein the optical structure (100) is so associated with or part of the lighting device (1) that the optical structure (100) is transmitted by substantially the total luminous flux of the lighting device (1), and wherein the unmodified light distribution (LV1) produced by the lighting device (1) is modified by the optical structure (100) into a predeterminable modified light distribution (LV2), wherein the modified light distribution (LV2) is obtained by using a scattering function (PSF) bends the unmodified light distribution (LV1) to form, and wherein the optical structure (100) is configured such that the unmodified light distribution (LV1) is modified corresponding to the scattering function (PSF).

Description

technical field [0001] The invention relates to an optical arrangement of a lighting device for a motor vehicle headlight, which lighting device is provided for irradiating light, the light irradiated by the lighting device forming a predetermined light distribution. [0002] The invention also relates to a lighting device for a vehicle headlight having such an optical structure. [0003] Furthermore, the invention relates to a vehicle headlight having at least one such lighting device. Background technique [0004] According to the law, the light distribution of vehicle headlights must meet a series of conditions. [0005] For example above the light and dark line (HD line) - ie outside the primary lighting area - minimum and maximum light intensities are required at certain places according to ECE and SAE. This acts as a “marker light” and enables overhead illumination of road signs in the case of illumination of passing vehicles. The light intensities used are generall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/25F21V5/04F21V13/04F21Y115/10
CPCF21S41/275G02B27/00F21W2102/18F21S41/43F21W2102/16
Inventor D.基伊斯林格
Owner ZKW GRP GMBH