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Automobile headlamp with laser light source

A technology for automotive headlights and laser light sources, which is applied in the light sources, headlights, semiconductor devices of light-emitting elements, etc., can solve the problems of high light precision requirements, large optical loss, increased weight, etc., and achieves low precision requirements and material costs. Low, low optical loss effect

Active Publication Date: 2021-06-04
中山市富同晟科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, although laser has been used as a light source for automobile headlights, its use technology is not mature, and it only appears in some high-end automobile brands. When forming the light distribution curve of automobile low beam or high beam, it is only Simply imitating the technology of existing LED automotive headlights, then, there are still similar problems, such as: the headlights are bulky, the weight increases, the requirements for light accuracy are high, the optical loss is too large, and the optical device materials are expensive. These problems also inevitably limit the laser as a light source for automotive headlights to enter the automotive field

Method used

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  • Automobile headlamp with laser light source
  • Automobile headlamp with laser light source
  • Automobile headlamp with laser light source

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Experimental program
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Effect test

Embodiment 1

[0026] An automobile headlamp with a laser light source 1, which can respectively form a low beam light distribution spot and a high beam light distribution spot, wherein the automobile low beam light includes a laser light source 1, three diffusion lenses for diffusing the laser light source 1 and a A low-beam shaping lens 5 forming a low-beam light distribution spot; an automobile high beam includes a laser light source 1, three diffusion lenses that diffuse the laser light source 1 and a high-beam shaping lens that forms a high-beam light distribution spot. In the present invention, the working principle of the low beam and the high beam of the automobile is that the light irradiated by the laser light source 1 passes through three diffusion lenses in sequence, the light is diffused, and the diffused light passes through the low beam shaping lens 5 and the far beam respectively. Light shaping lens, when it is projected onto the light distribution screen at a distance of 25m ...

Embodiment 2

[0037] An automobile headlamp with a laser light source 1, which can respectively form a low beam light distribution spot and a high beam light distribution spot, wherein the automobile low beam light includes a laser light source 1, three diffusion lenses for diffusing the laser light source 1 and a A low-beam shaping lens 5 forming a low-beam light distribution spot; an automobile high beam includes a laser light source 1, three diffusion lenses that diffuse the laser light source 1 and a high-beam shaping lens that forms a high-beam light distribution spot. In the present invention, the working principle of the low beam and the high beam of the automobile is that the light irradiated by the laser light source 1 passes through three diffusion lenses in sequence, the light is diffused, and the diffused light passes through the low beam shaping lens 5 and the far beam respectively. Light shaping lens, when it is projected onto the light distribution screen at a distance of 25m ...

Embodiment 3

[0046] An automobile headlamp with a laser light source 1, which can respectively form a low beam light distribution spot and a high beam light distribution spot, wherein the automobile low beam light includes a laser light source 1, four diffusion lenses for diffusing the laser light source 1 and a A low-beam shaping lens 5 that forms a low-beam light distribution spot; a car high beam includes a laser light source 1, four diffusion lenses that diffuse the laser light source 1 and a high-beam shaping lens that forms a high-beam light distribution spot. In the present invention, the working principle of the low beam and the high beam of the automobile is that the light irradiated by the laser light source 1 passes through three diffusion lenses in sequence, the light is diffused, and the diffused light passes through the low beam shaping lens 5 and the far beam respectively. Light shaping lens, when it is projected onto the light distribution screen at a distance of 25m along t...

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Abstract

The invention discloses an automobile headlamp with a laser light source, which can respectively form a low beam light distribution spot and a high beam light distribution spot. A low-beam shaping lens for the light spot and a high-beam shaping lens for forming the high-beam distribution light spot. Its beneficial effect is that the present invention not only enables the highly concentrated laser beams to form an effective driving lighting spot in a limited space, but also the low beam light distribution spot and the high beam light distribution spot meet the test requirements of the light distribution screen, and the entire front light The lamp is small in size, the cost of materials used is low, the optical loss in the light distribution process is small, and the requirements for the accuracy of the light are low.

Description

technical field [0001] The invention relates to the field of automobile headlights, in particular to an automobile headlight with a laser light source. Background technique [0002] Automobile headlights are one of the important parts of automobiles, especially to ensure the safe driving of automobiles at night. The country has made clear regulations and detailed standards on automobile headlights. [0003] Traditional automotive headlights, the light source is halogen or HID (high-intensity discharge), but halogen and HID have the disadvantages of high power consumption and low energy efficiency, and the halogen bulb has a large luminous point, which makes the secondary optical design difficult, which leads to the front The lamp is bulky and has a short irradiation distance. Compared with the halogen bulb, although the HID has a smaller luminous point, it also has weaknesses such as slow response speed. The LED light source that appeared after the halogen bulb and HID has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/16F21S41/25F21S41/265F21S41/275F21V5/00F21W102/135F21W107/10F21Y115/30
CPCF21V5/008F21Y2115/30F21S41/16F21S41/25F21S41/265F21S41/275F21W2102/135F21W2107/10
Inventor 陈少藩其他发明人请求不公开姓名
Owner 中山市富同晟科技有限公司