Shanghai light pollution control policy introduced LED advertising screen will be divided into day and night standards

Nowadays, LED for outdoor advertising screen "light pollution" complaints, Shanghai city greening and City Council announced in late August, is drafting the "Shanghai city landscape lighting facilities management approach", to improve the brightness of LED no basis situation.

LED advertising "light pollution" frequent advertisers, residents each one sticks to his argument

With the development of the city, LED advertising screen sprung up in general, initially in Xujiahui, Huaihailu Road and other commercial Quan Xingqi, now extended to ordinary residential buildings. With LED advertising screen produced by "light pollution" problem more and more, the South Mall LED advertising screen was that the screen is too light, the influence of Humin elevated road safety; Zhongshan Park Shanghai Bookmall Changning branch LED advertising screen is that contrast is too strong, too. How wide is the LED screen? The general public buildings, shopping malls, Public opinions are divergent. advertisers, unable to agree on which is right. The dispute for a long time, but found that no one in the standard, the "Laoniangjiu" Shanghai Landscaping Bureau, when tired.

Green and amenity Bureau of Shanghai City, the relevant responsible person told the reporter, in 2004 Shanghai had promulgated "Shanghai city environment (decoration) lighting standards", which only provides lighting brightness of traditional outdoor advertising and signs, is not suitable for LED electronic display. Because at that time, Shanghai's LED advertising screen is not much, and now 8 years later, this specification is obviously outdated. "The responsible person said, the brightness of LED is a very flexible index, in the case of damage to the eyes, the brightness of advertisers believe to be big, is conducive to the advertising effect, and people think that the screen is too bright, will hurt the eyes, the impact of travel or rest.

"This time we will learn to cooperate and Shanghai lighting, by collecting data and detailed analysis, as far as possible to produce a standard brightness, the maximum brightness is LED advertising screen limits, and standard to distinguish between day and night. "These people, the standard is a minimum standard, if a building LED standard, but people still feel the screen is too bright to life, they will still be people-oriented, on-the-spot investigation, coordinate and solve.

Strobe, contrast and other values will be gradually refined

An expert at the Shanghai Institute of lighting is introduced, the LED screen will focus on standard brightness level, at present, people reflect such as flicker, contrast and other issues, yet not included, these indicators will be gradually refined in the future research. The "management approach" may be introduced in November.

The reporter learned that, in addition to the provisions of LED advertising screen brightness, Shanghai will be based on the city construction layout, regional function and cultural features, organize the preparation of city landscape lighting facilities planning, reasonable layout of landscape lighting facilities, control the scale of development, reduce the living landscape lighting caused by light pollution of city people's livelihood.

For some new LED screen, adjust the brightness is relatively easy, can be set by the background software parameters, but there are some models of the old LED screen, the need for complex manual operation. "Comprehensive assessment of Shanghai semiconductor lighting engineering research center Li Shuzhi believes that after the standard, whether it is for advertisers and building shopping malls to adjust the LED brightness, or the relevant government departments to implement the examination and enforcement work, have important reference value.