Distributed optical reflector of LED (light emitting diode) street lamp

Abstract

The invention discloses a distributed optical reflector of an LED (light emitting diode) street lamp. In street lighting application, height of a lamp pole can be lowered to reduce power and realize secondary energy conservation. The optical reflector comprises three groups of symmetrically connected reflecting cups, and each side of the reflecting cup groups includes a first reflecting cup, a second reflecting cup and a third reflecting cup. The first reflecting cup is formed by a reflector A, a reflector B, a reflector C and a high-power mounting hole J. The second reflecting cup and the third reflecting cup are the same with the first reflecting cup in structure. Efficient light and overall uniformity in different distances of streets are realized by the arrangement of different angles of reflection, different areas of light and the different power LED sources, average illumination is increased by 20-30%, the uniformity is increased by 40-50%, and application cost is lowered by 10-20%; and the optical reflector has significant social and economical benefits.

Description

technical field [0001] The invention relates to a secondary optical reflector for street lamps, in particular to an optical reflector for LED street lamps in distributed arrangement. Background technique [0002] At present, road lamps using LEDs use the characteristics of directional light emission of LEDs, so that each LED in the road lamps can directly emit light to each area of ​​the illuminated road surface, and then use the auxiliary light distribution of the lamp reflector to achieve a very reasonable Comprehensive light distribution of road lamps. In most LED lamps, a single light source is used to realize the overall light distribution. In road lighting applications, there will be a problem of high illuminance close to the light pole and low illuminance far away from the light pole, especially for main road applications. The power of lamps and lanterns will be increased and the installation height will be increased to ensure the average illuminance and overall unif...

AI Technical Summary

Problems solved by technology

In most LED lamps, a single light source is used to realize the overall light distribution. In road lighting applications, there will be a problem of high illuminance close to the light pole and low illuminance far away from the light pole, especially for main road applications. The power of lamps and lanterns will be increased and the installation height will be increased to ensure the average illuminance and overall uniformity requirements. This is costly, low light utilization rate, and energy-saving effect is not obvious

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