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Laser and LED integrated automotive headlamp

A technology for automotive headlamps and LED lamp modules, applied in the field of automotive lighting, can solve the problems of inability to meet the directionality and high power, long mechanical deflection response time, electromagnetic environment affected by temperature, etc., and achieves the optimization of the light path. Comprehensive utilization of design and energy, lightweight structure, small size effect

Inactive Publication Date: 2019-04-30
HUIZHOU FRONT OPTOELECTRONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the temperature of LED rises rapidly, and the efficiency decreases during use, and LED is used as a high beam of a car, and it still cannot meet the requirements of directionality and high power in the case of no lighting or poor lighting conditions
[0005] In addition, the existing LED headlights adopt the design scheme of integrating the high beam and low beam, and generally adopt the electromagnetic scheme, and realize the switching between the high beam and the low beam by electromagnetically attracting the light baffle. , this scheme has complex mechanical structure, many parts, high cost, and there are problems such as long mechanical deflection response time, electromagnetic environment affected by temperature, etc.

Method used

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  • Laser and LED integrated automotive headlamp

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The laser light output by the blue laser emitter is transmitted to the lens 11 coated with yellow phosphor to output the white laser light source by optical fiber. The beam expander lens 12 diffuses the laser beam, the shaping lens 11 shapes the beam, and the outgoing beam passes through the high beam functional area of ​​the aspheric light distribution lens 8 to form high beam lighting.

[0036] The low beam light adopts LED light source, and emits a light beam through a composite shaper, and the light beam passes through the low beam functional area of ​​the aspheric light distribution lens 8 to realize low beam lighting. The circuit control module 1 is connected to the laser module 5 and the LED lamp module 6 .

Embodiment 2

[0038] The laser output by the blue laser transmitter is transmitted to the lens (or yellow phosphor film) coated with yellow phosphor in the form of beam transmission to output a white laser light source, and the lens (or yellow phosphor film) coated with yellow phosphor is located in the far The top of the light guide groove 10 of the light lamp is followed by a beam expander lens 12 and a shaping lens 11. The beam expander lens 12 diffuses the laser beam, and the shaping lens 11 shapes the beam. The outgoing beam passes through the high beam function of the aspheric light distribution lens 8 Zone formation high beam lighting.

[0039] The low beam light adopts LED light source, and emits a light beam through a composite shaper, and the light beam passes through the low beam functional area of ​​the aspheric light distribution lens 8 to realize low beam lighting. The circuit control module 1 is connected to the laser module 5 and the LED lamp module 6 .

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Abstract

The invention relates to the field of automotive lighting, in particular to a laser and LED integrated automotive headlamp. The laser and LED integrated automotive headlamp comprises a circuit controlmodule, an optical processing module, a first heat dissipation module, a second heat dissipation module, a laser module and an LED lamp module, wherein the circuit control module is connected with the laser module and the LED lamp module; the first heat dissipation module is connected with the laser module; the second heat dissipation module is connected with the LED lamp module; the laser moduleand the LED lamp module are connected with the optical processing module respectively; the circuit control module is used for controlling on-off of the laser module and the LED lamp module. The laserand LED integrated automotive headlamp integrates a high-beam headlamp and a low-beam headlamp and is small in size, output laser of the high-beam headlamp has richer white light spectrum output, larger spectrum coverage rate and high color rendering index, better environmental protection property is realized, and the laser and LED integrated automotive headlamp further has the characteristic ofstable quality.

Description

technical field [0001] The invention relates to the field of automobile lighting, in particular to an automobile headlight integrating laser and LED. Background technique [0002] Car headlights refer to the lighting devices installed on both sides of the head of the car for night driving. As the eyes of the car, it is not only related to the external image of a car owner, but also related to the front of the car at night or in bad weather The lighting effect of the lighting directly affects the operation and traffic safety of driving at night. [0003] The main types of car headlights are traditional halogen headlights, xenon headlights and new LED headlights. Traditional halogen headlights and xenon headlight bulbs have disadvantages such as low luminous efficiency, short life, low reliability, and long start-up time. LED headlights have obvious advantages. Compared with traditional halogen headlights and xenon headlights, LED headlights not only have small size, long li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/25F21S45/47F21V23/04B60Q1/04F21W107/10F21Y115/10
CPCB60Q1/04F21V23/04F21Y2115/10F21S41/25F21S45/47F21W2107/10
Inventor 马建设王丽萍黄剑炜宋昱铭苏萍
Owner HUIZHOU FRONT OPTOELECTRONIC TECH CO LTD