Ultra-small-angle light-intercepting lens

Abstract

The invention discloses an ultra-small-angle light-intercepting lens. The light-intercepting lens comprises a lens body, and is characterized in that the lens body is parabolic; a light source emitting cavity is formed in the middle of the bottom of the lens body, and peripheral reflection curved surfaces are arranged on the two sides of the lens body; an upper notch is used as a light-exiting cavity; the middle, corresponding to the center of the light-exiting cavity, of the emitting cavity is provided with a lens with double convex lens, and thus light is converged; the outer surfaces of theperipheral reflection curved surfaces are electroplated coatings, so that light is completely reflected to an inner cavity; the surface of the light-exiting cavity is arranged in a stepped mode, anda light-exiting surface is formed; and through combination of combined light condensation of the lens and the electroplated reflective surfaces and the double convex lens condensation, light spots oftwo lights overlap, the optical distance is shortened through the stepped light-exiting surface design, the light utilization rate is increased, the peak light intensity is effectively increased, thelight spots are condensed within 2 degrees, the light spot light-intercepting performance is good, obvious glare is avoided, the peak light intensity is high, and the light-intercepting lens is applicable to single high-power LED light source light distribution.

Description

technical field [0001] The invention relates to a lighting fixture, in particular to an ultra-small-angle light-cutting lens. Background technique [0002] With the popularization of LED light sources, LED lenses have been widely used, and the most commonly used ones are 4°~60° lenses, which can basically meet the needs of most working surfaces, but at present, the application of ultra-small angle lenses less than 4° There are still relatively few. At present, there are mainly two ways to do ultra-small angle light distribution. First, the light distribution of the reflector cup, through the secondary light distribution of the reflector cup, the light is converged, and the light output reaches 0°~2°. The disadvantage is reflection The defect rate of cup production is high, and the light in the center part radiates out in the form of a Lambertian body, which cannot be effectively used, resulting in a decrease in light efficiency; second, the lens light distribution, most of t...

AI Technical Summary

Problems solved by technology

[0002] With the popularization of LED light sources, LED lenses have been widely used, and the most commonly used ones are 4°~60° lenses, which can basically meet the needs of most working surfaces, but at present, the application of ultra-small angle lenses less than 4° There are still relatively few. At present, there are mainly two ways to do ultra-small angle light distribution. First, the light distribution of the reflector cup, through the secondary light distribution of the reflector cup, the light is converged, and the light output reaches 0°~2°. The disadvantage is reflection The defect rate of cup production is high, and the light in the center part radiates out in the form of a Lambertian body, which cannot be effectively used, resulting in a decrease in light efficiency; second, the lens light distribution, most of the current small-angle lenses are small-sized lenses, and the lens center structure The light in the middle is scattered by the frosting process, which is easy to produce glare, and the minimum light angle can only be 3°

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