What are the requirements for the light distribution of solar street light lamps?

The area where a normal car driver's eyes are fixed is mainly the road 60 to 160 meters ahead. Because the reflected light from the road will form a brighter background, and the obstacle will become a dark image, because the brightness difference between the obstacle and the background is relatively large, so it is more distinguishable than the human eye. From the theoretical analysis, for the human eye structure and retinal cells, 1, cone cells 2, rod cells The International Commission on Illumination CIE uses the display ability RP to set the probability of seeing obstacles on the road to study the effect of the average brightness of the road on the visual function. Influence in road lighting design. In order to prevent the lane from being too bright, but the sidewalk is very dark, it is not conducive to the driver to see the roadside environment, which is potentially dangerous. In the light distribution design of solar street light, the human eye's vision should be fully considered. The brightness uniformity of road lighting is different than the glare environment. The road surface material, road width, lighting installation conditions and energy-saving factors need to fully consider the light distribution design along the lane direction. The light distribution design in the vertical lane direction needs to fully consider the polarized light design. ME1~ME5 road lighting requirements commonly used in the standard. Street lights and light distribution designed according to the previous analysis method It can be seen in the front that the light distribution design of solar street light is to comprehensively consider parameters such as brightness, uniformity, glare, and environmental ratio from the perspective of human vision and driving safety. Under the premise of satisfying safe and comfortable lighting, it can achieve the effect of saving energy as much as possible. The driving direction is close to the triangular section, and the street lamp with polarized design perpendicular to the direction of the road is the future trend. At the same time, the versatility of the product should be fully considered, and the roads with different road widths should be covered with as little light distribution as possible. Starting from the principle of human vision, combined with the current commonly used road lighting standards
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