Email:elliewangled@chinacytech.com Shanghai Ceyuan Industrial Co.,Ltd

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Shanghai Ceyuan Industrial (SCI) Ltd.

ADD:Room 901, No.20, Lane777, West Guangfu Road, Putuo District, Shanghai, China. 

Contact: Ellie Wang

TEL: +86-573-82753308

Mobile: +8618042017693

FAX: +86-573-82753302

E-mail: elliewangled@chinacytech.com

Website: www.cyledlight.com


LED Street Light The Key Factor

LED lights with light is to make the light as far as possible to be projected to illuminate the various areas of the road, in line with the requirements of road lighting light distribution, LED street light design is accurate in place whether it can replace the traditional one of the key factors.

In order to meet the road surface brightness, illumination, LED Street Light uniformity requirements, and as much as possible so that most of the light are distributed in the road surface to improve the utilization of light to reduce unnecessary waste, usually need to LED light distribution, LED Street light output light irradiation on the road formed by the light type or spot to rectangle is better

LED street light distribution program in the road lighting requirements on the basis of the same time to consider the control of glare and consider the environmental coefficient. LED Street Light For road lighting, the luminous efficiency and light distribution curve is two important parameters, the current LED lights with light the main program has the following basic form.

In the power LED manufacturing process, the use of lens technology package can improve the light efficiency, reduce light output loss, change the light output characteristics, LED packaging lens technology and high-power LED street lighting a light distribution has a certain relationship. Through a good package lens design, LED can get better light output characteristics.

The use of double-headed lens package of LED light distribution, can be a single LED light intensity output curve into a "bat wing" shape, LED Street Light in order to further achieve the overall light intensity of the overall output curve of the "bat wing" shaped light.

LED lights in the high-power LED using a lens or reflector to further change the output optical characteristics, that is, the secondary light distribution LED lights.

LED lights of the secondary light distribution mainly in the following circumstances.

The use of all-reflective lens LED secondary light distribution. The light is directed from the relative optical density to the relative optical sparse medium, and the total reflection can occur when the incident angle is greater than the critical angle. Using this principle, the axisymmetric total reflection lens is designed.

For example, the beam angle is changed to within ± 30 °, LED Street Light which facilitates further light distribution design. The total reflection lens is shown in Fig.

The use of free-form lens LED secondary light distribution. In this design, the free-form surface optical element with asymmetric rectangular light distribution in the XY axis direction is used.

For example, an evenly distributed light distribution of ± 60 ° is generated on the X-axis to meet the lighting requirements in the length direction of the road, LED Street Light and a uniform distribution of light distribution of ± 30 ° is generated on the Y-axis to obtain an LED "Batwing "Shaped with light.

In the free-form surface design, the light distribution of the light source is matched with the illumination surface of the illumination target by including the differential equation method, LED Street Light the multi-parameter optimization method, the multi-surface simultaneous design method and the shear method

The use of external lens and reflector LED secondary light distribution. Choose the appropriate lens and parabolic reflector, so that the light to meet certain requirements

LED street light design with XY direction asymmetric rectangular light distribution of the free surface optical components (lens or reflective cup), LED Street Light because the rectangular light distribution in a single LED optical components have been completed, so the entire LED lights only need to align the LED module On the plate can be


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