LED street lamp

A technology of light-emitting diodes and street lamps, which is applied to semiconductor devices of light-emitting elements, light sources, electric light sources, etc., can solve the problems of motor vehicle driver danger, strong glare of LED street lamps, etc., and achieve the effect of reducing glare.

Inactive Publication Date: 2009-09-16
FU ZHUN PRECISION IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from this that the light intensity values ​​of this kind of LED street lamps in the 80° and 90° angle directions are all greater tha

Method used

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Embodiment Construction

[0016] Such as figure 2 As shown, the light-emitting diode street lamp of the present invention includes a housing 10 with a driving circuit module (not shown) inside and two housings 10 that are respectively locked on opposite sides of the housing 10 and electrically connected to the housing 10. Lamp body 20,60.

[0017] Please also see image 3 , the housing 10 is a quadrangular truss structure, with a bottom surface 12 and a top surface 14 opposite to each other, two front and rear sides (not marked in the figure) and two left and right installation surfaces 16 surrounding it. Both the bottom surface 12 and the top surface 14 of the housing 10 are trapezoidal, and the bottom surface 12 is parallel to the top surface 14 . The area of ​​the bottom surface 12 is larger than that of the top surface 14 . The front side of the casing 10 is smaller than the rear side, and a cylindrical lamp holder 11 is installed in the middle of the rear side for connecting with a light pole ...

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Abstract

A light-emitting diode (LED) street lamp comprises a shell, and a first lamp body and a second lamp body arranged on the shell; the first lamp body and the second lamp body respectively comprise a heat emitter and a plurality of LED modules closely arranged on the heat emitter, wherein the heat emitters of the first lamp body and the second lamp body are obliquely arranged at the two opposite side surfaces of the shell, and the LED modules closely arranged on the heat emitters of the first lamp body and the second lamp body are in nonsymmetrical distribution relative to the shell. Compared with the prior art, the LED modules at the two opposite sides of the shell of the LED street lamp are in nonsymmetrical distribution, thus reducing the light intensity of one side of the LED lamp in the directions of the angles of 90 degrees and 80 degrees, and achieving the aims of reducing glare and even being free from glare.

Description

technical field [0001] The invention relates to a lighting device, in particular to a light-emitting diode street lamp. Background technique [0002] As a high-efficiency light source, light-emitting diodes have many characteristics such as environmental protection, power saving, and long life, and have been widely used in various fields, such as street lamps and other lamps. [0003] The requirement of road lighting for lamps is that cut-off lamps must be used on urban expressways and main roads. The International Commission on Illumination (CIE) defines cut-off lamps as: the angle between the direction of the maximum light intensity and the downward vertical axis of the lamp is 0°~65°, the maximum allowable light intensity of the lamp in the direction of 90° angle and 80° angle is 10cd / 10001m and 30cd / 10001m respectively, and regardless of the luminous flux of the lamp, its The maximum light intensity shall not exceed 1000cd. [0004] A traditional LED street lamp has tw...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V29/00F21V17/00F21V15/02F21W131/103F21Y101/02F21V29/508F21V29/71F21Y105/16F21Y115/10
CPCF21W2131/103Y02B20/72
Inventor 刘友学何立
Owner FU ZHUN PRECISION IND SHENZHEN
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