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Motor vehicle lighting device with at least one micro-projection light module and method for producing same

A technology of micro-projection and lighting device, which is applied in the direction of motor vehicles, road vehicles, signal devices, etc., can solve problems such as high cost, and achieve the effect of reducing cost, increasing quantity, and achieving high precision

Pending Publication Date: 2022-04-12
AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thereby, a process with very high precision is required for positioning the lenses relative to each other, which results in high costs (eg processes from the semiconductor industry) (cf. EP3282181A1)

Method used

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  • Motor vehicle lighting device with at least one micro-projection light module and method for producing same
  • Motor vehicle lighting device with at least one micro-projection light module and method for producing same
  • Motor vehicle lighting device with at least one micro-projection light module and method for producing same

Examples

Experimental program
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Embodiment Construction

[0041] in detail, figure 1A sectional view of a motor vehicle lighting device 10 with a housing whose light exit opening is covered by a transparent cover 14 is shown. Arranged in the interior of the housing 12 is a micro projection light module 16 which has a light source 18 , auxiliary optics 20 and a micro projection optics 22 . The light source 18 is preferably a semiconductor light source with which light 19 can be emitted in the direction of the auxiliary optics 10 .

[0042] figure 2 show figure 1 A three-dimensional view of the miniature projection light module 16. The pico projection light module 16 has a plurality of pico projectors 28 arranged in rows 24 and columns 26 .

[0043] image 3 A longitudinal section of a single micro-projector 28 of the micro-projection light module is shown. Each individual microprojector 28 has a light entrance surface 30 , an aperture layer 32 and an exit lens surface 34 .

[0044] According to the invention, the diaphragm lay...

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Abstract

The invention relates to a motor vehicle lighting device having at least one micro-projection light module having a light source, an auxiliary optical device and a micro-projection optical element having a plurality of micro-projectors arranged in rows and columns, each of the plurality of mini-projectors has a light incident surface, an aperture layer, and an exit lens surface. The motor vehicle lighting device is characterized in that the aperture layer is arranged directly on the light incident surface and is attached to the incident lens surface. One independent claim relates to a method for manufacturing such a motor vehicle lighting device.

Description

technical field [0001] The invention relates to a lighting device for a motor vehicle with at least one micro projection light module with a light source, auxiliary optics and a micro projection optics with a plurality of projection optics arranged in rows and columns A micro projector, each of the plurality of micro projectors has a light incident surface, an aperture layer and an exit lens surface. The invention also relates to a method for producing such a motor vehicle lighting device. Background technique [0002] In order to project an image of the light distribution within the projector as an external light distribution onto, for example, a road surface with limited installation space, the construction of the projector from a plurality of micro-projectors has proven to be suitable. Such projectors are known as components of motor vehicle headlights from DE 10 2017 112 971 A1 and WO 2019 / 120900 A1. Such projectors operate with a very short focal length and therefore ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/275F21S41/265F21S41/20F21W102/10F21W107/10
CPCF21S41/143F21S41/265F21S41/47F21S41/275
Inventor 费利克斯·弗雷塔格塞巴斯蒂安·席尔德曼托比亚斯·鲁兹
Owner AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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