Design method of anti-dazzle LED lamp

Abstract

The invention discloses a design method of an anti-dazzle LED lamp. The core of the design method is characterized in that an extinction insert unit is added in a lens sink slot of the anti-dazzle LED lamp. Distances h between the bottom surface of the extinction insert unit and the notch of the sink slot are adjusted by multiple times to obtain a light intensity distribution curve of the adjustment at each time. The value of the center light intensity is compared with an initial value of the center light intensity with no extinction insert unit, a light intensity value of a half-angle A degree is compared with an initial value of the half-angle A degree, and a light intensity value of a half-angle B degree is compared with an initial value of the half-angle B degree. If the center light intensity attenuation is within a preset standard percentage number range, the light intensity value attenuation of the half-angle A degree is over 40%, and the light intensity attenuation of the half-angle B degree is over 50%, the value of the current distance h between the bottom surface of the extinction insert unit and the notch of the sink slot is the optimum one. According to the invention, because the extinction insert unit is fixed in the lens sink slot, compared with the original optical system with no extinction insert unit, the edge dazzle of the invalid region is obviously improved.

Description

technical field [0001] The invention relates to the technical field of LED traffic lights, in particular to a design method of an anti-glare LED light. Background technique [0002] With the improvement of road traffic management, there are more and more camera monitoring devices at intersections, and intelligent traffic fill lights, as one of its components, are playing an increasingly important role. In the process of taking pictures, strong light is needed to capture the scene clearly, but the strong light causes glare and discomfort to pedestrians and motor vehicle drivers on the side of the road, that is, glare, which produces invalid light for single-lane fill lights. For the glare problem, the effective optical angle of a single lane is 14 degrees, and the glare angle is 20 degrees, that is, the light intensity in the range of 0 degrees from the normal direction to 10 degrees on one side for one rotation, and invalid light beyond 20 degrees. [0003] Anti-glare lamps...

AI Technical Summary

Problems solved by technology

[0006] The third option is as image 3 As shown, an extinction grid 6 is placed outside the lens to eliminate invalid glare beyond 20 degrees, such as image 3 It can be seen that the extinction grid 6 is taller and longer than the lens, which greatly increases the height of the whole lamp, and the size is too large, which is not conducive to the installation of the whole lamp, and the cost of the extinction grid 6 is very high

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