Shanghai Ceyuan Industrial Co.,Ltd

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



LED Street Light The Utilization Rate

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

In the road lighting, if there is no LED light source light, LED Street Light the light on the road surface for the larger circular spot, there will be part of the light scattered outside the road without being used

In order to meet the road surface brightness, LED Street Light illumination, uniformity requirements, LED Street Light 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 The light of the street light is illuminated. The light or light spot formed on the road surface is preferably rectangular

The spatial distribution of luminous intensity is often referred to as light distribution curve. Under the street light, the light intensity should be the smallest, with the elevation angle θ increased, LED Street Light the intensity I increased.

LED street light distribution program in the road lighting requirements on the basis of the same time to consider the control glare and consider the environmental coefficient. For road lighting, LED Street Light 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, LED Street Light the use of lens technology package can improve light efficiency, reduce light output loss, change the light output characteristics, LED package 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.

With the double-headed lens package of LED light distribution, can be a single LED light intensity output curve into a "bat wing" shape, 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 light 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.

LED lights three times the light distribution is in the high-power LED on the basis of the completion of the second light, through a number of LED (unit module) superposition and space arrangement to meet the road lighting average brightness, average illumination and uniformity The request.

LED lights designed with XY-oriented asymmetric rectangular light distribution of the free surface optical components (lens or reflective cup), because the rectangular light distribution in a single LED optical components have been completed, so the entire LED lights only need to LED array On the plate can be.

A plurality of LEDs are arranged to form an LED module. The LED on the LED module is optically aligned with an axially symmetric, totally reflective lens or reflector, and the width of the radiation through the lens or reflector is sufficient to cover the width of the road.

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