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Projection headlight for vehicles

A projection type, headlight technology, applied in the direction of headlights, vehicle parts, lighting and heating equipment, etc., to achieve the effect of shortening the tolerance chain, avoiding manufacturing tolerances, and saving structural space

Pending Publication Date: 2022-02-25
海拉有限双合股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the secondary optics consist of a plurality of lens elements which require increased manufacturing costs and installation space

Method used

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  • Projection headlight for vehicles
  • Projection headlight for vehicles
  • Projection headlight for vehicles

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] Projector headlamps for vehicles are installed in the front area of ​​the vehicle. The projector headlight has a housing in which the optical components described below are arranged. The housing opening is closed by a glass-clear cover.

[0023] According to the first embodiment of the present invention, according to Figure 1 to Figure 3 , the projection headlight has a first light unit 1 and a second light unit 2, which are equipped with a common secondary optics 3, which are arranged along the main emission direction H between the first light unit 1 and the second light unit. The front of the second light unit 2.

[0024] The secondary optics 3 is designed as a lens with a single optical axis A. FIG. The lens 3 is designed as a converging lens, in particular a plano-convex converging lens, wherein the flat surface 4 of the lens 3 serves as a light entry surface and the convex surface 5 of the lens 3 serves as a light exit surface. Alternatively, the lens 3 can al...

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PUM

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Abstract

The invention relates to a projection headlight for vehicles, comprising a first lighting unit (1) containing a light source (8) and a primary optical unit (91, 92, 93, 94, 95) for pre-shaping light emitted by the light source (8), a second lighting unit (2, 2') containing a light source (8) and a primary optical unit (121, 122, 123; 151,152, 153) for pre-shaping the light emitted by the light source (8), a secondary optical unit (3) for imaging the light (20) exiting the primary optical unit (121, 122, 123; 151, 152, 153) of the first lighting unit (1) in a region in front of the vehicle as a first light distribution (L1) and light (21) exiting the primary optical unit (121, 122, 123; 151, 152, 153) of the second lighting unit (2, 2') as a second light distribution (L2), means for actuating the first lighting unit (1) and the second lighting unit (2, 2') in order to generate the light distribution consisting of the first light distribution (L1) and the second light distribution (L2), and a diaphragm (6, 6') with a diaphragm edge (7) for producing a light-dark boundary (HDG) in the first light distribution (L1). The invention is characterized in that the primary optical unit (91, 92, 93, 94, 95; 121, 122, 123; 151, 152, 153) of the first lighting unit (1) and / or the second lighting unit (2) comprises a plurality of light guide elements which are designed to be formed differently such that the light (20, 21) exiting the light guide elements is imaged into different sub-light distributions (TL12, TL13, TL14, TL15, TL21, TL22, TL23) of the first light distribution (L1) or the second light distribution (L2) by a secondary optical unit (3) paired with the first lighting unit (1) and the second lighting unit (2, 2').

Description

technical field [0001] The invention relates to a projection headlamp for a vehicle, comprising: a first light unit containing a light source and a primary optical device for preshaping the light emitted by the light source; a second light unit containing a light source and a primary optical device for primary optics for preshaping the light emitted by the light source; secondary optics for imaging the light emitted by the primary optics of the first light unit into a first light distribution in the area in front of the vehicle and for converting the light emitted by the second light unit The light emitted by the primary optics of the unit is imaged into a second light distribution; means for manipulating the first light unit and the second light unit to produce a light distribution consisting of the first light distribution and the second light distribution; a diaphragm having Edge of the stop used to create a light-dark boundary in the first light distribution. Background ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/255F21S41/151F21S41/32F21S41/43F21S41/143F21S41/24
CPCF21S41/255F21S41/151F21S41/322F21S41/43F21S41/143F21S41/24F21S41/19F21S41/657
Inventor B·德莱斯勒F-J·卡乐滋R·莱特辛
Owner 海拉有限双合股份公司
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