Laser stimulated white-light lighting system

一种照明系统、白光的技术，应用在照明系统领域，能够解决发光效率低等问题，达到增强光强度、提升出光效率、实施成本低廉的效果

Inactive Publication Date: 2017-10-10
NAT CENT UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to overcome the defects of low luminous efficiency of the existing lighting system, and provide a laser-excited white light lighting system, which includes: a hemispherical reflector, a light-transmitting carrier plate, a wavelength conversion layer, a reflective layer, and Most Heat Dissipating Structures

Method used

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  • Laser stimulated white-light lighting system
  • Laser stimulated white-light lighting system
  • Laser stimulated white-light lighting system

Examples

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Embodiment Construction

[0040] see figure 1 and image 3 Shown is a laser-excited white light illumination system 100 of an embodiment, which includes: a hemispherical reflector 10 ; a light-transmitting carrier 20 ; a wavelength conversion layer 30 ; a reflective layer 40 ; and a plurality of heat dissipation structures 50 .

[0041] Such as figure 1 and image 3 As shown, the hemispherical reflector 10 of the laser excitation white light illumination system 100 has a reflective arc surface 13 and an opening 12 , and a first light entrance hole 11 is provided on the reflective arc surface 13 .

[0042] The material of the hemispherical reflector 10 is not particularly limited, and may be made of ceramics, metal or other heat-resistant materials. The shape of the hemispherical reflector 10 is formed to reflect the light reflected by the reflective layer 40 on the transparent carrier 20 to the position of the excitation region 21 .

[0043] Such as figure 1 , figure 2 and image 3 As shown, th...

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PUM

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Abstract

The present invention discloses a laser stimulated white light lighting system, it includes a hemispherical reflector, a light-permeable board, a wavelength conversion layer, a reflective layer and plural heat-radiating structures, wherein the laser light emitted by a laser light source passes through a first light entrance hole of the hemispherical reflector and subsequently through the wavelength conversion layer to produce white light. With the implementation of the present invention, complex production process or equipment is not required thus reduce the system cost, the lighting system is capable of accurately outputting white light and promoting photon recycling effect to raise illumination efficiency. With the addition of a second light entrance hole, wavelength-division or angular division multiplexing can be carried out to raise the intensity of the output white light without increasing the etendue of the source light, thereby widening the range of application of the lighting system.

Description

technical field [0001] The present invention relates to an illumination system, in particular to a laser-excited white light illumination system with a hemispherical reflector and laser as a light source, which can accurately output white light, improve light output efficiency, and enhance the light intensity of emitted white light. It is suitable for wide promotion and application in the industry. Background technique [0002] In modern life, the use of energy-saving light sources is being rapidly popularized. Among them, LEDs, which have a very low power demand and can provide sufficient brightness requirements, are growing the fastest. [0003] Most of the LEDs used today are white LEDs, and most of them are completed by exciting phosphors with blue crystal grains. However, the luminous characteristics of the blue crystal grains have a relatively large etendue, so that the efficiency of combining them with phosphors has been unable to be effectively improved. On the oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V7/04F21V7/22F21V9/16
CPCF21S2/00F21V7/045F21V7/22F21V13/08F21Y2113/00F21V29/76F21V9/32F21V9/38F21V7/04F21V29/74
Inventor 孙庆成杨宗勋
Owner NAT CENT UNIV
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