Laser-type traffic signal lamp

A traffic signal light and laser-type technology, applied in the field of optical systems, can solve problems such as difficult to meet the illumination angle and uniformity of illumination, low light energy utilization rate, uneven light-emitting surface, etc., and achieve good application prospects and light energy utilization rate. High, good monochromatic effect

Inactive Publication Date: 2015-12-16
JIANGXI SCI & TECH NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main shortcomings of this solution are: for example, the packaging structure cannot control the outgoing light, and it is difficult to meet the requirements of the irradiation angle and uniformity of irradiation; Energy utilization is low, requiring multiple LEDs to increase brightness

Method used

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  • Laser-type traffic signal lamp
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  • Laser-type traffic signal lamp

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Experimental program
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Effect test

Embodiment

[0013] Embodiment: A kind of laser type traffic signal light, comprises light source 1 and collimation system 3, also comprises beam expander system 2 and heat dissipation system 4, and described beam expander system 2 is positioned between light source 1 and collimation system 3, and described heat dissipation The system 4 is used to prevent the beam expander system 2 from being heated. The light emitted by the light source 1 is expanded by the beam expander system 2 and irradiates the collimator system 3 to form a uniform beam through the collimator system 3 .

[0014] The light source 1 includes red laser, yellow laser and green laser. Among them, the luminous power of the red laser is 40.9mw-102.2mw, the luminous power of the yellow laser is 11.4mw-28.5mw, and the luminous power of the green laser is 12.6mw-31.4mw.

[0015] The beam expander system 2 uses an optical diffraction device that has been etched into a multi-step structure by the laser direct writer to expand the...

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PUM

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Abstract

The invention discloses a laser-type traffic signal lamp, comprising a light source and a collimator system. The laser-type traffic signal lamp also includes a beam expanding system and a cooling system. The beam expanding system is located between the light source and the collimator system. The cooling system is used for preventing the beam expanding system from being heated. The light emitted from the light source passes through the beam expanding system, then illuminates the collimator system and then goes through the collimator beam system to form a uniform light beam. The invention makes full use of the advantages of high monochromaticity, brightness and directivity of laser and the advantages of small volume, light weight, high integration and the like of a optical diffraction device, achieves the lighting effect required by a traffic signal lamp while meeting the above design requirements, has the characteristic of high system compactness, breaks through the designing concept of a traditional traffic signal lamp, has the advantages of good lighting effect, compact structure, high solar energy utilization efficiency and so forth as compared with the traditional traffic signal lamp, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of optical systems, in particular to a laser traffic signal lamp. Background technique [0002] Traffic lights are a category of traffic safety products. They are an important tool to strengthen road traffic management, reduce traffic accidents, improve road use efficiency, and improve traffic conditions. Applicable to intersections such as crosses and T-shaped intersections, it is controlled by road traffic signal controllers to guide vehicles and pedestrians to pass safely and orderly. [0003] At present, the common traffic lights are mainly divided into two parts: the light source and the mask. Multiple single-color LEDs (light-emitting diodes) are arranged in a certain shape, and then they are simply packaged by the mask. The main shortcomings of this solution are: for example, the packaging structure cannot control the outgoing light, and it is difficult to meet the requirements of the irradiation ang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/095F21V13/00F21V29/70F21W111/02
Inventor 邓丽军刘国栋许虎黄振
Owner JIANGXI SCI & TECH NORMAL UNIV
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