LED street lamps are mainly used, trunk roads, secondary Gan, branches, factories, schools, gardens, city squares, courtyards and other road lighting.
The increase in output power and luminous flux also needs to be further enhanced from the high power white led Epitaxy technology, chip technology and other basic levels. In two times optical design, the LED radiation forms have Lambert type, side shoot type, bat wing type and concentrating type. In the field of road lighting, according to the design experience Lambert type and bat airfoil is more suitable, through two times optical design, so that LED lighting range, photometric curve to meet the needs of road lighting.
LED in the road lamps and lanterns used in the most common form is mainly in the lamp, in an almost flat surface (also reflective surface) mounted on the matrix-type LED, this design method is not possible to get good lighting with light.
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