LED high bay was originally designed to ensure the normal production of factories and mines, and is now widely used in sports lighting. With the development of high-power white light emitting diode (LED) chips, and their advantages of high luminous efficiency, long life, etc., they gradually replaced traditional light sources as the main force of lighting. The traditional high bay lighting with metal halide as a light-emitting body has also gradually been replaced by LED high bay.
The general lighting is usually arranged evenly on the stadium or factory or on the side wall, lighting the entire work surface. LED high bay is suitable for casting or flood lighting in factories and enterprises, industrial and mining enterprises, shopping malls, stadiums, etc. It has excellent explosion-proof performance, low light attenuation, high luminous efficiency, energy saving and environmental protection, long life, etc. It has been popularized in the world. application.
With the wide application of LED high bay, its problems are gradually exposed, among which the high glare is particularly prominent. The traditional high bay have no anti-glare measures and have serious glare problems. They have a great impact on production and life, and may cause harm to the human eye. Ordinary anti-glare LED high bay in the traditional LED high bay in front of frosted diffusion plate or anti-glare lens, although it can reduce the glare to a certain extent, but far from the use of requirements, but also bring about greater loss of light energy.
TUBU designed an anti-glare LED high bay,60° UGR<22,40° UGR<19. By adding a funnel-shaped free-form surface reflector to the high bay fixture, the shape of the outer surface of the workpiece is optimized so that the illuminance of the inner wall of the lamp cup is even and the glare of high bay is greatly reduced.
Glare refers to the visual condition that there is extreme brightness contrast in space or time due to unfavorable brightness distribution, causing visual discomfort and reducing the visibility of the object. In the field of vision, excessive brightness appears in a certain part of the field of view or changes in brightness occur too much before and after, resulting in a feeling of light that the human eye cannot adapt to, which may cause disgust, discomfort, or even blindness.
Glare is one of the important causes of visual fatigue. Glare impact on the human body is mainly the glare of the human eye, its main assessment indicators are: glare light source or reflection source brightness, glare light source eye angle, background brightness and glare light source deviation from the line of sight angle.
Glare has a tremendous impact on the smooth production of workshops and sports events, and even affects people’s lives. Against this background, it has become a consensus among the industry to design anti-glare mining high bay lamps with optimized anti-glare effect and low loss of light energy.
Ordinary LED high bay has high glare. The main reason is that the LED light source has high luminous intensity and strong directionality. When the human eye looks directly at the LED light source, its glare value must be great. To make people look at the high bay lighting will not have a lot of glare:
1.make the human eye can not see the light source;
2.increase the light emitting area.