Automobile intelligent headlamp laser light source system and application method

A laser light source, intelligent technology, applied in the direction of light source, headlights, optical elements used to change the spectral characteristics of emitted light, etc., can solve the problems of uneven illumination, high assembly requirements, low production efficiency, etc., to meet the requirements of vehicle vibration Requirements, easy alignment of optical path, convenient installation and debugging

Pending Publication Date: 2021-11-02
安徽翰视激光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the car headlights using this working mode, once the structure of the reflective surface / condenser is determined, the light pattern of the car headlights is also determined, and it is impossible to change the light pattern according to the use environment. In addition, because the output light shape of the existing light source (bulb or LED) is fixed, the car headlights using the above working mode cannot change the distribution of the light on the ground in front of the car.
[0003] Existing DLP smart headlights need light sources for lighting. Conventionally, high-pressure mercury lamps or LED light sources are used, but both light sources have some shortcomings. High-pressure mercury lamps have short life, high heat generation, and prominent heat dissipation problems. Applied in civilian projection systems, not suitable for vehicle lighting sources
LED solid-state light sources can be used in vehicle lighting systems, but because of low luminous density and large optical expansion, multiple LED splicing is required, and multiple LED shaping light path synthesis is required. The overall volume is large, the system is complex, and the cost is high;
[0004] There are also differences in brightness between multiple LEDs, and there is uneven lighting; during production, installation and commissioning, due to the complex structure, high assembly requirements, low production efficiency, and high cost, a new technical solution is needed to solve the above problems. technical problem

Method used

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  • Automobile intelligent headlamp laser light source system and application method
  • Automobile intelligent headlamp laser light source system and application method
  • Automobile intelligent headlamp laser light source system and application method

Examples

Experimental program
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Effect test

no. 1 example

[0041] When implementing, follow these steps:

[0042] 1) The light from the laser light source 11 is directed to the first collimated and compressed optical path 12, and the compressed light is reflected by the dichroic mirror 15. The reflective surface below the dichroic mirror 15 is provided with a spectroscopic optical film, which mainly reflects laser light. The effect of light from the light source 11;

[0043] 2) The light reflected by the dichroic mirror 15 is reshaped by the focusing optical path 1# 14, and the focused spot is 1-3mm in diameter and projected onto the wavelength conversion device 13, which is a reflective structure with a heat-conducting base, and the reflected light The strength and angle satisfy the Lambertian distribution, and the heat-conducting substrate is made of a metal material with good thermal conductivity, such as copper, aluminum or composite materials, etc.;

[0044] 3) The light reflected by the wavelength converting device 13 is the conv...

no. 2 example

[0047] When implementing, follow these steps:

[0048] 1) The light from the laser light source 11 is irradiated to the first collimated and compressed optical path 12, and the compressed light is reflected by the dichroic mirror 15, and an optical film is provided on the reflecting surface below the dichroic mirror 15, and the optical film is preferably The spectroscopic optical film mainly plays the role of reflecting the light of the laser light source 11;

[0049] 2) The light reflected by the dichroic mirror 15 is reshaped by the focusing optical path 1#14, and the focused light spot is 1-3 mm in diameter and projected onto the wavelength conversion device 13. The device is a transmission structure, and the intensity and angle of the transmitted light meet the Lambertian requirements. distributed;

[0050] 3) The light transmitted by the wavelength conversion device 13 is the wavelength-converted light, which then reaches the shaping optical path 16;

[0051] 4) The lig...

no. 3 example

[0053] When implementing, follow these steps:

[0054] 1) directing the light from the laser light source 11 to the first collimated and compressed optical path 12;

[0055] 2) After the compressed light is reshaped by the focusing optical path 1# 14, the focused light spot is 1-3 mm in diameter and projected onto the wavelength conversion device 13. The device is a transmission structure, and the intensity and angle of the transmitted light satisfy the Lambertian distribution;

[0056] 3) The light transmitted by the wavelength conversion device 13 is the wavelength-converted light, which then reaches the shaping optical path 16;

[0057] 4) The light shaped by the shaping optical path 16 is then transmitted through the focusing optical path 2# 17 to obtain the desired light source, and then projected onto the DMD chip 18 .

[0058] To sum up, the scheme is simple in structure and easy to operate. It adopts a single-channel solid-state laser light source module, the optical ...

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PUM

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Abstract

The invention relates to an automobile intelligent headlamp laser light source system and an application method. The automobile intelligent headlamp laser light source system comprises a laser light source (11), light of the laser light source (11) sequentially passes through a first collimation compression light path (12), then passes through a focusing light path 1 # (14) to reach a wavelength conversion device (13), a shaping light path (16) and a focusing light path 2 # (17), and finally reaches a DMD chip (18). According to the laser light source system, a solid semiconductor laser light source is utilized, the solid semiconductor laser light source is focused on the ceramic fluorescence conversion pieces through a focusing light path, the ceramic fluorescence conversion pieces with different characteristics are selected, visible light with different wavelengths can be emitted through laser, and the light serves as a light source system of an intelligent headlamp, so that the light energy utilization efficiency can be improved, the lighting luminous flux can be improved, and the system power consumption is reduced; and the system is simple in structure, can achieve reflection type and projection type, can carry out selection according to the site environment, and is wide in application scene.

Description

technical field [0001] The invention relates to the field of automobile intelligent lighting systems, in particular to an automobile intelligent headlight laser light source system and an application method. Background technique [0002] At present, the mainstream technology of traditional car headlights is the working mode of light source (bulb or LED) plus reflective surface / condenser, that is, the light is reflected by the reflective surface / condenser to achieve the desired light pattern. The technology is mature and reliable. However, in the car headlights using this working mode, once the structure of the reflective surface / condenser is determined, the light pattern of the car headlights is also determined, and it is impossible to change the light pattern according to the use environment. In addition, because the output light shape of the existing light source (bulb or LED) is fixed, the car headlights using the above working mode cannot change the distribution of the ...

Claims

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Application Information

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IPC IPC(8): F21S41/16F21S41/25F21V9/40F21V9/20F21W102/10F21W107/10F21Y115/30
CPCF21S41/16F21S41/25F21V9/40F21V9/20F21W2102/10F21W2107/10F21Y2115/30
Inventor 吴新民
Owner 安徽翰视激光科技有限公司
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