White light LED for road illumination

Abstract

The invention discloses a white light LED used for street illumination, comprising a bracket which consists of a base and a heat-conductive column which is arranged at the center of the base; the middle of the heat-conductive column is provided with a groove, the bottom of which is fixed with an LED chip, wherein, the base is also fixed with an optical lens, the bottom of which is connected with the base through a fixed base; the top of the optical lens is a convex rectangular platform; furthermore, one end of the long edge side of the rectangular platform is high and the other end thereof islow. The white light LED leads the light beam emitted by the LED light source to be reflected and refracted for many times by the optical lens and to be emitted finally in the same direction, therefore, the light beam is more concentrative, the waste of the light beam is avoided, the utilization ratio of the light is effectively improved, the dark area between the illumination of the street lampsis eliminated, and the safety accidents of driving in night are avoided.

Description

Technical field: [0001] The invention relates to a street lamp lighting device, in particular to a white light emitting diode for road lighting. The invention can make the LED luminescence have orientation, so as to improve the utilization rate of the light. Background technique: [0002] At present, the light distribution curves of power light-emitting diodes mainly include batwing type, Lambert type, side-emitting type and focusing type, etc., and one of their common characteristics is the normal distribution of wide-angle circles. If these light sources are used for road lighting, many light sources will be wasted in places that do not need lighting. In the direction of the road, due to the relatively large distance between the lamps, there are often dark areas that cannot be illuminated between the lamps, which not only causes a waste of energy, but also brings great inconvenience to driving at night, and is likely to cause safety hazards. . Invention content: [000...

AI Technical Summary

Problems solved by technology

If these light sources are used for road lighting, a lot of light sources will be wasted in places that do not need lighting

In the direction of the road, due to the relatively large distance between the lamps, there is often a dark area that cannot be illuminated between the lamps, which not only causes a waste of energy, but also brings great inconvenience to driving at night, and is likely to cause safety hazards.

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