Views: 306 Author: Site Editor Publish Time: 2021-09-06 Origin: Site
LED street light is a street light made with an LED light source, which has many advantages. LED street light has design requirements, so what are the design requirements of LED street light? Let's take a look at it together next.
This is the content list:
The design of LED street light should have the function of directional light emission
LED street light needs a constant current drive power supply to ensure its normal operation
Because power LED street light is almost always equipped with a reflector, and the efficiency of this reflector is significantly higher than the reflector efficiency of the luminaire. In addition, the luminous efficiency of LED street lights has been tested to include the efficiency of its reflector. The use of LED street light should be as far as possible to use the LED directional emission of light characteristics so that each LED street light in the LED directly to the light of the various areas of the road, and then use the lamps reflector auxiliary light distribution, to achieve very reasonable road lamps and lanterns of comprehensive light distribution. It should be said, LED street lights to meet the standard illumination and illumination uniformity requirements, LED street lights should contain three times the function of light distribution to better achieve. LED street light with reflector and has a reasonable beam output angle of the LED itself has a good once the light distribution function. In the LED street light, according to the LED street light height and road width design of each LED installation position and the direction of the emitted light can achieve a good secondary light distribution function. The reflector in the LED street light, only as an auxiliary three light distribution means to ensure better uniformity of road illumination.
In the actual design of LED street light, it can be used in the basic setting of each LED set shooting direction premise, each LED with a ball joint fixed in the luminaire, when the LED street light used in different heights and irradiation width, can be adjusted by the ball joint to make each LED irradiation direction to achieve satisfactory results. In determining the power, the beam output angle of each LED of LED street light, according to E (lx) = I (cd) / D (m) 2 (light intensity and illumination distance square inverse law), respectively, to calculate the power of each LED in the basic selected beam output angle should have, and can be adjusted by adjusting the power of each LED and LED driver circuit output to each LED a different power to make each LED light output to reach the expected value. These adjustment means are unique to road luminaires using LED light sources, making full use of these characteristics of LED street lights can be achieved to meet the illumination and illumination uniformity of the road surface under the premise of reducing the lighting power density, to achieve the purpose of energy-saving.
the LED street light power system is also different from the traditional light source, requires a constant current drive power supply, is to ensure its normal work of a major cornerstone, a simple switching power supply scheme often brings LED street light damage. How to make a group of LEDs closely compressed together safely, is also an indicator of the examination of the LED street light. Ensure the constant LED output power. To make the LED driver circuit show constant current characteristics, from the output of the driver circuit to look inward, the output impedance must be high. The correct design solution is to use an active electronic switching circuit or use high-frequency current to drive LED street light, using the above two programs can make the driver circuit maintaining good constant-current output characteristics, LED street light still has a high conversion efficiency.
CECEP Latticelighting is a high-tech company that focuses on LED energy-saving lighting applications and provides intelligent lighting solutions. We base on the design requirements of LED street lights, and on this basis, other designs of LED street lights can also do our best to meet the consumers, if you are interested in LED street lights then you can contact us, our website is www.latticelighting.com.