LED (light-emitting diode) street lamp reflector

Abstract

The invention discloses an LED (light-emitting diode) street lamp reflector which comprises a plurality of reflector modules. Each reflector module comprises a base; the upper surface of the base is provided with a light receiving reflecting surface; a light polarizing plate is vertically arranged on the base; the surface of the light polarizing plate, which is opposite to the light receiving reflecting surface, is provided with a light polarizing reflecting surface; the light receiving reflecting surface and the light polarizing reflecting surface are both arc-shaped curved surfaces; and the light receiving reflecting surface is perpendicular to the light polarizing reflecting surface. The light receiving reflecting surface of the LED street lamp reflector is perpendicular to the light polarizing reflecting surface, and an LED light source with a disposable bimodal lens is arranged on a limiting hole of the base, the asymmetrically distributed light can be formed in the road width direction, and more light rays can irradiate one side of a lane so that the road illuminating light flux utilization of an LED street lamp can be improved. When the LED street lamp reflector is used for illuminating the road, more light rays can irradiate the lane so that the illuminance of the surface of the lane can be improved. The LED street lamp reflector can be used easily and flexibly and has high illuminance and high uniformity of illuminance.

Description

technical field [0001] The invention relates to a reflector, in particular to a reflector for an LED street lamp, and belongs to the field of reflectors for an LED street lamp. Background technique [0002] The light distribution curve of LED street lamps is a bat-wing shape in the direction of road driving, so that the light can diverge along the road length and irradiate the road surface, so as to achieve a certain uniformity of road surface illumination; in the direction of road width, the light distribution curve of LED street lamps It is generally symmetrical. Even if the light pole has a cantilever and an elevation angle, there is still too much light irradiating the area other than the roadside, and there is a waste of part of the light. [0003] At present, the traditional LED street lamp light distribution technology uses secondary lenses to achieve batwing light distribution and at the same time obtain asymmetric light distribution in the direction of road width, a...

AI Technical Summary

Problems solved by technology

However, its disadvantages are: for different manufacturers and different types of LED light sources, it is necessary to design a separate matching secondary lens, otherwise a reasonable light distribution cannot be obtained; The road surface spots obtained after the lens will have obvious light color inconsistency; even if the secondary lens realizes the polarized light of the LED street light, it often cuts off the light at a certain angle in the direction of the road width, causing the road illuminance to change rapidly somewhere. Reduce, for example, there are obvious dark areas in the outermost lanes of roads with more than four lanes; the lens material of the secondary lens will age after long-term use in the road lighting environment, thereby reducing the light efficiency and lighting effect of LED street lights