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Light distribution module of laser garden lamp

A technology for light distribution modules and garden lights, which is applied to optical elements used to change the spectral characteristics of emitted light, semiconductor devices for light-emitting elements, light sources, etc., and can solve the problems of no solution, sudden drop in efficiency, and attenuation of light output efficiency And other issues

Pending Publication Date: 2019-08-27
JINAN SANXING LAMPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is a well-known "efficiency drop" phenomenon in LEDs that has nothing to do with heat dissipation, that is, as the driving power density increases, the light output efficiency will rapidly decay, and no reasonable solution has been found so far

Method used

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  • Light distribution module of laser garden lamp
  • Light distribution module of laser garden lamp
  • Light distribution module of laser garden lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment discloses a light distribution module of a laser garden lamp, such as figure 1 , 2 , 3, including blue laser 1, beam shaping lens 2, turning prism 3, reflective cup 7, fluorescent transparent ceramic 4, metal sleeve 5 and light distribution baffle 6.

[0026] The reflective cup 7 is a quadrangular truss-shaped cover body with only one open bottom surface, which is the light-emitting surface of the reflective cup 7. One surface of the fluorescent transparent ceramic 4 is installed on the unopened bottom surface of the reflective cup 7. This surface is marked as A surface. The other face is facing the reflective surface of the reflective cup 7, and this face is marked as the B face, which is the light-emitting face of the fluorescent transparent ceramic 4, and the metal sleeve 5 is set on the fluorescent transparent ceramic 4 except for the other parts of the A face and the B face, with light scattering The baffle 6 is located at the front end of the ligh...

Embodiment 2

[0038] In this embodiment, the inside of the metal sleeve 5 and the light-distributing scattering baffle 6 all adopt mirror surfaces, and the inner wall of the reflective cup 7 is still a scattering surface. Under the condition that the structure of the light distribution module remains unchanged, when the light-distributing scattering baffle adopts mirror reflection , different light distribution squares and light distribution curves can be obtained, which can be used for outdoor garden light lighting places with different distance-to-height ratios. Others are the same as in Example 1, and will not be repeated here.

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Abstract

The invention discloses a light distribution module of a laser garden lamp. The light distribution module comprises a blue laser, a reflection cup, a fluorescent transparent ceramic, a metal sleeve and a light distribution scattering baffle, wherein the reflection cup is a quadrangular frustum-shaped cover body with only one opened bottom surface, the fluorescent transparent ceramic is arranged inthe blue light laser, the metal sleeve sleeves outside the fluorescent transparent ceramic, the light distribution scattering baffle is positioned at the front end of the fluorescent transparent ceramic, the light distribution scattering baffle completely shields all emergent light of the fluorescent transparent ceramic, light-transmitting holes are formed in the reflection cup and the metal sleeve, light emitted by the blue laser can be gathered on the fluorescent transparent ceramic through the light-transmitting holes in the reflection cup and the metal sleeve, the fluorescent transparentceramic emits yellow light under the excitation of blue light, and the yellow light and the residual blue light are mixed to become warm white light or positive white light. According to the light distribution module, the blue laser is used for replacing a LED light source, so that the problem of limited light efficiency of the LED light source is solved; and meanwhile, the glare index of emergentlight is reduced by utilizing the reflection cup and the light distribution scattering baffle.

Description

technical field [0001] The invention relates to a light distribution module of a laser garden light, which can use a semiconductor blue light laser with a light efficiency higher than that of an LED for urban slow lanes, narrow lanes, residential quarters, tourist attractions, parks, and squares Outdoor white light lighting in public places. Background technique [0002] For ordinary garden lighting, some use traditional iodine tungsten bulbs, and some use energy-saving bulbs. In recent years, most garden lights use LEDs as light sources. The structure and light distribution methods of garden lights are also very different, but no garden lights using lasers as light sources have been found, and no garden lights have been found that use flat light distribution baffles that completely block the light beam and reflector cups on the scattering surface. The common indoor lighting grille lamp is a lamp that blocks part of the light energy by the grille, and is widely used in comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V9/30F21V9/40F21V5/04F21V7/00F21V7/04F21Y115/30
CPCF21V9/30F21V9/40F21V5/043F21V5/04F21V7/0041F21V7/04F21Y2115/30
Inventor 赵波吴升堂
Owner JINAN SANXING LAMPS