A design method of anti-glare LED lamp

Abstract

The invention discloses a design method of an anti-glare LED lamp, the core of which is to add a matting insert in the lens sinker of the anti-glare LED lamp, and adjust the distance h between the bottom surface of the matting insert and the notch of the sinker multiple times, Obtain the light intensity distribution curve at each adjustment, and compare the value of the center light intensity with the initial value of the center light intensity without adding the extinction insert, and the value of the light intensity at the half-angle A degree is relative to the initial value at the half-angle A degree Ratio, the value of the light intensity at the half-angle B degree is compared with the initial value at the half-angle B degree. If the central light intensity attenuation is within the preset standard percentage, the value of the light intensity at the half-angle A degree is attenuated by more than 40%. , the attenuation of the light intensity at the half-angle B degree is above 50%, then the value of the distance h between the bottom surface of the matting insert and the notch of the sinking groove is the optimal h value. In the present invention, a extinction insert is fixed in the lens sinker, and compared with the original optical system without the extinction insert, the edge glare of the invalid area 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

Images