Since 2014, the town's light pollution prevention plan has been carried out. After so many years of hard work, it has finally passed the temporary certification of the international dark sky community (indicating that there are still some areas for improvement), which is the first certified international dark sky in Germany. Community. Two or three things to reduce light pollution - how dark is it? The certification done by the International Dark Space Association is unique, it's not a completely light pollution-free, uninhabited wasteland, because that's too easy.
What they want is a place that people frequently visit or Photo Manipulation Services inhabit, with an established source of man-made light pollution. However, after consultation, communication and integration of opinions, the improvement of environmental light pollution will be carried out together, and certification will only be granted if the low light pollution standards set are met, which is a very meaningful process. Readers may ask, does the so-called promotion of light pollution control mean to eliminate all lights? This is a big misunderstanding. In fact, to put it simply, it is to use outdoor lighting appropriately, reasonably and in a friendly environment. How to meet these requirements? The International Dark Sky Association makes the following five recommendations: Lighting only when needed Light only where needed Should not exceed the necessary brightness Minimize blue light exposure full mask pointing down You can try to check the night lights around your life.
It is not difficult to find that most of the lighting is wasted. For example, some lamps are not equipped with a lampshade. The light they emit is scattered, and most of them are directed to the sky. Above the horizontal plane centered on the light source, the light directed to the sky is wasted. This is the biggest source of light pollution in the dark night. Although some lamps and lanterns are flat when there is no light irradiating surface, they are not installed horizontally downward, and some light will still illuminate the sky, which is also the source of light pollution. Therefore, it is not difficult to achieve the requirement of low light pollution.