Lens and anti-glare LED (light-emitting diode) lamp

Abstract

The invention discloses a lens and an anti-glare LED (light-emitting diode) lamp. A top surface of the lens is an emergent light surface, a side surface of the lens is a total reflection surface or reflection surface, the bottom of the lens is provided with a sunken groove, the sunken groove is provided with an incidence side surface and an incidence top surface which allow light to enter the lens, and an extinction insert is fixed on the incidence top surface of the sunken groove; the anti-glare LED lamp comprises an LED light source and the lens, and the LED light source is located at the center of the opening of the sunken groove. Since the extinction insert is fixed in the sunken groove of the lens, compared with a conventional optical system without an extinction insert, the lens remarkably improves the edge glare of the ineffective area, and meanwhile, the change of the light intensity of the central effective area is tiny. The solution has the advantages of simple and compact structure, wide application range, high universality, low cost, easiness in control, wide anti-glare range and the like.

Description

technical field [0001] The invention relates to the technical field of LED traffic lights, in particular to a lens and 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 in the ...

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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