Micro lens array type LED (light-emitting diode) headlamp for automobile illumination

A technology for microlens arrays and automotive lighting, which is applied to components of lighting devices, cooling/heating devices of lighting devices, lighting devices, etc., can solve problems such as low utilization of light energy, improve service life, and ensure safety. Effect

Active Publication Date: 2013-10-23
SOUTH CHINA UNIV OF TECH
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the above-mentioned problems, and provides a microlens array type headlight for LED automobile lighting. It solves the problem of low utilizatio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Micro lens array type LED (light-emitting diode) headlamp for automobile illumination
  • Micro lens array type LED (light-emitting diode) headlamp for automobile illumination
  • Micro lens array type LED (light-emitting diode) headlamp for automobile illumination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation and protection of the present invention are not limited thereto.

[0048] Such as figure 1 As shown, the microlens array headlamp for LED automotive lighting provided by the present invention is composed of LED chip 100, aluminum substrate 200, heat sink 300, parabolic reflector 400 and free-form surface microlens array 500. The LED chip is welded on the fixed position of the aluminum substrate, and the aluminum substrate, the parabolic reflector and the free-form surface microlens array are installed on the heat sink through corresponding assembly methods.

[0049] The light distribution principle of the microlens array type headlight for LED automobile lighting provided by the invention is as follows: figure 2 As shown, the headlight does not need a light barrier, and the optical system only includes the LED c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a micro lens array type LED (light-emitting diode) headlamp for automobile illumination, which comprises an LED chip, an aluminium substrate and a radiator. The micro lens array type LED headlamp further comprises a collimator and a free-form surface micro lens array. The LED chip is welded on the aluminium substrate; the aluminium substrate, the collimator and the free-form surface micro lens array are arranged on the radiator; the light-emitting surface of the LED chip faces the incident face of the collimator; after light passes through the collimator, the light is emitted in a parallel light beam way, and the light enters the incident face of the free-form surface micro lens array vertically. The micro lens array type LED headlamp for automobile illumination, disclosed by the invention, has the advantages of less spare and accessory parts, simple and stable structure, convenient installation and high radiating efficiency, in addition, a light barrier is not needed for light distribution, the loss of light energy caused by a light distribution system is reduced, and the light energy use ratio is improved. By adopting the free-form surface optical design, the trend of light rays can be effectively controlled, the glare effect is restrained, and meanwhile, the light distribution requirements of the LED headlamp for an automobile in the national standard GB25991-2010 can be met.

Description

technical field [0001] The invention relates to the technical field of LED automobile headlight lighting, in particular to a microlens array type headlight for LED automobile lighting. Background technique [0002] LED light sources have the advantages of long life, high efficiency and energy saving, small size, and environmental protection. At present, they have been widely used in vehicle brake lights, turn lights, tail lights, and instrument lights. Research on the application of headlights is also increasing. More, LED will soon become the mainstream of the car light source market. With the continuous expansion of the application of LED in vehicle lighting systems and the continuous improvement of application technology, LED will gradually replace traditional incandescent lamps and halogen tungsten lamps and become the "fourth generation" light source of vehicle lights. The development trend of lighting application. [0003] Compared with other light sources, LEDs have...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F21S8/10F21V19/00F21V7/22F21V5/04F21V29/00F21W101/02F21W101/10F21V29/76F21W107/10
Inventor 王洪陈赞吉葛鹏
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap