LED (light-emitting diode) reflector

Abstract

The invention discloses an LED (light-emitting diode) reflector, which can be used for distributing light rays emitted by an LED single lamp. When the reflector is used for illuminating at a cross road, and the range of a mounting elevation angle (and a horizontal contained angle) is 15-90 degrees, a center joining area cannot form a hot spot, and a dark area cannot be formed below a lamp pole, so that the whole area is uniformly illuminated.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to an LED reflector. Background technique [0002] In the outdoor spotlight lighting scene, a common scene is the lighting of the intersection. Light poles are arranged at the four corners of the intersection, and several spotlights are installed on the light poles to illuminate the intersection area, including the center of the intersection. Traffic intersection area and vehicle stop and waiting area; some intersections have green belts, and the green belts are generally located at the four corners of the intersection, that is, the area under and behind the light pole. illumination. Due to the limitation of light pole style, installation bracket form and actual construction, the installation elevation angle (angle with the horizontal) of the lamp head in the crossroad high pole light is often relatively large, such as 45 degrees or more than 45 degrees, or even 75 degrees or ...

AI Technical Summary

Problems solved by technology

When it is used for intersection lighting, the existing problems are: first, when the elevation angle of the light source (the angle with the horizontal) is small, such as below 30 degrees, because the light converges in the central area of ​​the intersection, the central traffic intersection area will appear obviously bright. Spots, the illuminance value is obviously greater than the area under the light pole, and the large brightness contrast will cause bad visual effects; second, when the elevation angle (angle with the horizontal) of the light source is large, such as 45 degrees, a large part of the light cannot be irradiated In the crossroad area, light is wasted, the illuminance value is low, and the uniformity of illumination is not enough; third, when the elevation angle of the light source (with the horizontal elevation angle) is larger, such as more than 60 degrees, there is more waste of light. At the same time, the light pole There are obvious dark areas below and the landscape effect is lost

Images