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Light guide elements for laser automotive headlights

A technology of light-guiding components and light-emitting components, which is applied in the direction of headlights, vehicle parts, electric light sources, etc., can solve the problems of harming traffic participants, eye laser rays, etc., and achieve the effect of high light output rate

Active Publication Date: 2017-06-30
ZKW GRP GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently used laser sources with a power of 3 W or more, in the event of a loss of function (e.g. if the light-emitting element is not optimally encountered) can cause damage due to the high intensity of the eye-damaging laser beam, especially to other eyes traffic participant

Method used

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  • Light guide elements for laser automotive headlights
  • Light guide elements for laser automotive headlights
  • Light guide elements for laser automotive headlights

Examples

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Embodiment Construction

[0023] In the following figures, for the sake of clarity, identical components are assigned the same reference symbols. The terms used below such as "upper", "lower", "front" and "rear" relate to the state of assembly in a motor vehicle, if the light guide element 1 is also used in a motor vehicle headlight 2, which is front-mounted inside the car.

[0024] exist figure 1 A first variant of the light guiding element 1 according to the invention is shown in . The light guide element 1 is used, for example, in laser car headlights 2 (see image 3 ), and between the laser source 3 and the light-emitting element 4, the light-emitting element is excited for emitting visible light, especially white light, by the light incident from the laser source 3 . exist figure 1 Two different positions of the laser source 3 are shown in , as will be explained in more detail below.

[0025] The light guiding element 1 is preferably made of a transparent material, such as glass or plastic. ...

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Abstract

The invention relates to a light guide element ( 1 ) for a laser vehicle headlight ( 2 ), wherein the laser vehicle headlight ( 2 ) comprises at least one laser light source ( 3 ) and at least one irradiated by the laser light source ( 3 ) and thereby A light-emitting element (4) that can be excited for emitting visible light. The light guide element (1) has a first side surface (10), which is at least partially designed as a light entrance surface (5), and has a second side surface (20) opposite the first side surface (10), which is at least partially It is designed as a light exit surface (6) and at least one receiving body (7) for at least one light emitting element (4) is attached to it, wherein at least one alignment light guide element (1) is attached to the light entrance surface (5). The first reflection area ( 50 ) in the interior direction that reflects the light of the light incident surface ( 5 ) in the direction of the light-emitting element ( 4 ) containing body ( 7 ), wherein at least one alignment light guide element is attached to the light exit surface ( 6 ) (1) The second reflection area (60) in the inner direction, which reflects the light of the light-emitting element (4) in the direction of the light-emitting surface (6). The invention also relates to a motor vehicle headlight (2) having at least one such light-guiding element.

Description

technical field [0001] The invention relates to a light guide element for a laser vehicle headlight, wherein the laser vehicle headlight comprises at least one laser source and at least one luminous element which is irradiated by the laser source and thus excitable for emitting visible light. The invention also relates to a motor vehicle headlight having at least one laser light source and at least one luminous element irradiated by the laser light source and thus excitable for emitting visible light, with at least one such light guide element. Background technique [0002] Different types of motor vehicle headlights are known in the prior art, wherein in recent years mainly headlights with discharge lamps and halogen light sources have been used. For reasons of energy saving and in order to further reduce the space requirement of motor vehicle headlights, attempts are increasingly being made to use laser sources such as semiconductor lasers, since they are advantageous in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10
CPCF21S41/29F21S41/285F21S41/24F21S41/37F21S41/40F21S45/43F21S45/60F21S41/16F21S41/365F21S41/176
Inventor F.鲍尔
Owner ZKW GRP GMBH
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