Xinhua Beijing on Dec. 11 (Xinhua Jiangtao) to Tsinghua University-based research and development of new LED (light emitting diode abbreviation) city road lighting breakthrough technology bottlenecks, making the LED lights similar to the actual distribution of a rectangular illumination, illumination distribution, road use than the current comprehensive energy-saving high-pressure sodium lamps up to 60%.
According to reports, the traditional high pressure sodium lamps often used, the existence of the uneven distribution of illumination, the illuminated object color distortion, glare serious, life is short, high maintenance and other shortcomings, the overall polishing efficiency is low. High luminous efficiency white LED, and has low production costs, device performance and stability, the market easy to accept, efficient, energy saving, long life, good color rendering index, etc., it is likely to become the first choice for the next generation of new street lights. However, the efficient production of power type LED lamp face higher optical, thermal and technical barriers.
Power type LED used for lighting the special problems of urban roads, Tsinghua University, State Key Laboratory on Integrated Optoelectronics Research Group Professor Luo Yi set up a technology research group, recently in the LED lights on the optical system and cooling structure of a major breakthrough, obtained proprietary high light extraction efficiency, rectangular uniform distribution of power type LED illumination optical system package. After testing, single white LED power-based road use than the current comprehensive energy-saving high-pressure sodium lamps up to 60%.
Dongguan Kingsun Group and Tsinghua University, Tsinghua University successfully with independent intellectual property rights owned power type LED package and the application of technology implementation industrialization. Meanwhile, both sides jointly in high-efficiency, high reliability and intelligent cluster LED driver technology, a unique LED lamp assembly manufacturing industry has made significant progress in technology.
The current new lighting products have been successfully applied to the Guangdong Provincial Science Center lighting project, Tsinghua University Olympic venues road lighting, road lighting, Changping Town, Dongguan, Dongguan Shi Pai Town, a comprehensive renovation project nearly ten thousand street-lamp, a Dongguan Shilong Town comprehensive renovation project more than a street lamp, lighting district, Shenzhen Energy Engineering Meishan Court, Zhongshan Torch Development Zone, New Street Lights, Torch Development Zone, Zhongshan City, city lighting engineering and other high-power LED street lighting project, and achieved good energy saving and lighting effects. It is estimated that if the country's roads are high-efficiency lighting, new LED lights, you could save 42 billion kWh of electricity, equivalent to saving 15.8 million tons of standard coal, close to several large production of coal a year.
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