Polarized beam angle self-anti-dazzle LED outdoor directional lighting device

Abstract

The invention discloses a polarized beam angle self-anti-dazzle LED outdoor directional lighting device which comprises an LED lamp body and a plurality of LED lenses. Each LED lens comprises a reflection cup with an upward opening and a refraction lens arranged at the opening of the reflection cup, and an LED lamp is vertically and upwards installed in the center of the bottom in the reflection cup; the inner side wall of the reflection cup is used for reflecting light of the LED lamp to the refraction lens; and the refraction lens comprises an inclined plane part or a plurality of inclined plane parts arranged side by side, the inclined plane parts are parallel to the length direction of the LED lamp body and form included angles with the center line of the LED lamp, and all the inclined plane parts refract light rays reflected to the inclined plane parts to form light rays deviating towards the same side of the LED lamp body. The device is free of glare, and the device is high in light emitting uniformity, low in cost, simple in structure, light in weight and easy to assemble.

Description

technical field [0001] The invention relates to the field of lighting, in particular to an LED outdoor directional lighting device with self-anti-glare at a partial beam angle. Background technique [0002] Floodlights are lamps that specify that the illuminance on the illuminated surface is higher than that of the surrounding environment. They are mainly used for large-scale mines, building outlines, stadiums, overpasses, monuments, parks, and flower beds. Therefore, almost all large-area lighting fixtures used outdoors can be regarded as floodlights. LED floodlights are mainly used in single buildings, exterior wall lighting of historical buildings, green landscape lighting, billboard lighting and other special facility lighting, and atmosphere lighting in bars, dance halls and other entertainment venues. [0003] Building facades often use LED wall washers, also known as linear LED floodlights, and so on. Because of its long strip shape, some people call it LED line lig...

AI Technical Summary

Problems solved by technology

Because the lower part of the illuminated wall is closer to the lamp, while the upper part is farther away from the lamp, so ordinary light distribution will make the light in the lower part of the illuminated wall more concentrated, especially in the range of the double arrow line, it is very bright, the middle is weak, and the upper part changes sharply. Dark, poor overall uniformity

People stand on the opposite side of the irradiated building wall, and glare light shines into the eyes of the observer. The glare is relatively strong, causing the observer's visual discomfort and causing a lot of invalid light loss, thus reducing the overall Light utilization rate of lamps and lanterns

Therefore, in the process of installing floodlights in daily projects, the inclination angle of the lamps must be manually adjusted, which may easily cause differences in the angles of each lamp, and increase the difficulty of construction, and because tools are required for fixing the lamps and adjusting the angle, the entire The installation process takes a long time, and the installation effect is easily affected by human factors

[0006] In order to protect the glare of LED lamps, LED lamps on the market are covered with anti-glare panels or anti-glare covers, and the profile on the side of the shell that needs to be anti-glare is raised, such as figure 2 As shown, although it also meets the anti-glare protection requirements of outdoor lamps to a certain extent, it must add more metal materials. Due to the low light reflectivity of the added materials, the light efficiency of the whole lamp is virtually reduced, which not only increases The overall weight of the product also increases the difficulty of production assembly and packaging, and the product production efficiency is relatively low

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