De-Cai Opto: LED technology and the future of competition depends on the size of
Guangzhou Municipality has said that light pollution may develop in the near future pricing policy. The news being reported on a rise in the community discussion. Also aroused the public’s “light pollution” the concept of attention.
In the end What is light pollution?
Light pollution thirties early twentieth century put forward by the international astronomical community, they consider light pollution in urban outdoor lighting to light up the sky result in negative effects on astronomical observations. Later, Britain and other countries known as the “interference of light” in Japanese is called “light pollution.”
At present, domestic and foreign for light pollution and no clear definition. Now generally believed that effects of light pollution refers to natural environment on human normal life, work, rest and recreation adversely affected, damage people’s ability to observe the object, the body does not cause damage to human health, comfort and range of light. From 10 nm to 1 mm wavelength of light radiation, ie ultraviolet radiation, visible light and infrared radiation, in different conditions are likely to be light pollution.
LED electronic display brightness for its high strength to become the sources of light pollution. Many people it is a love-hate relationship. On the one hand, as one of the hallmarks of urban modernization, making the city look more dynamic fashion. LED Advertising with scrolling text to visual, image, graphic advertising caused people’s active interest in viewing audience a wide range of advantages over traditional media, the compelling viewing and guiding. Meanwhile, outdoor LED large screen, its low consumption capacity, environmental protection, durability, color saturation and volume characteristics of light, the masses of the rich cultural life, improve urban quality, service economy has played a positive role. However, to some extent it interferes with people’s lives. Light affects the safety of occupants and pedestrians, but also affect nearby residents at night to rest.
After weighing the pros and cons, as a manufacturer of LED electronic display, and Germany that its color photoelectric charge to be controversial, the more difficult to implement light pollution charges, Guiyang city departments can refer to the management of large-screen outdoor LED specifications. The first task is the planning, development of outdoor electronic display setting norms. Relevant departments to perform their duties: Business, management and administration department is responsible for urban management of outdoor electronic display setting of supervision and administration, police traffic control department should be in conjunction with industrial, commercial, municipal management and administration department of the outdoor electronic display of traffic safety evaluation criteria, and is responsible for on the outdoor electronic display settings for traffic safety evaluation. Management of the access radio and television and radio and television programs, outdoor electronic display for content review of its signal transmission, air safety supervision and management. To conduct rational distribution, will set the outdoor electronic display major public square in the city or walk street, the appropriate display brightness adjustment, set reasonable playing time. Believe if strictly enforced these norms, light pollution can certainly be controlled and slow. Vibrant city, the residents live and work, of course, to the development of LED industry provide a broader space.
LED technology and the future of competition depends on the size of
After more than ten years of development, China’s LED display industry shape a group of key enterprises with certain scale. The future of LED’s industrial competitiveness will depend on two aspects, one technical, which includes improving luminous efficiency, reduce costs of technology to increase the power of technology devices, the direction of a line extension of existing technologies may also be a new technology line; also includes access to quality products, technology, and the external drive such as the lighting system design and chip design technology; second scale, partly because large-scale to reduce costs, the market strong bargaining power; the other hand, compound epitaxial wafers and integrated circuit manufacture of silicon is that even with a very different extension of the production out of the chip performance will have greater differences from the relatively high demands on the consistency of application areas (such as the typical LCD backlight), the one extension only part to meet the requirements, but large-scale enterprises, its multiple layers of market structure can not meet the requirements of a market to another market deployment of chip products, the company’s total output efficiency of the full increase.
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