Low power consumption, long life, high brightness, 50 thousand years of LED decorated the night scene in Tianjin

In December 23, the evening, Xiqing District of Tianjin University of Technology new campus lights, soft lights left the students busy on the road. In the quiet campus, perhaps no one aware of these lights is not common. In fact, the campus is currently the largest LED lighting demonstration project, located in the road, the lawn, 1500 LED road lamps and 5000 LED indoor lights, round the clock for energy saving and environmental protection will also make a contribution, the future of lighting lighting industry.

LED decrypt

Continuous light 100 thousand hours

There is a big road light

Street lamps are familiar with the life of the facilities, but in front of the LED, it seems that there is a sense of distance". A small piece of light from a light-emitting diode, the heart is a semiconductor chip that converts electricity directly into light. At present, small size, low power consumption, long life, high brightness, low heat and environmentally friendly LED street lighting has led to the revolution.

Tianjin University of Technology professor Niu Pingjuan director of semiconductor lighting engineering research and Development Center said, energy-saving lamps than incandescent lamp energy saving 4/5, and is recognized as one of the LED lamps in twenty-first Century the most promising high-tech products, more than energy-saving lamps 1/4, can work continuously for 100 thousand hours, almost no maintenance. LED street lamp energy saving than the traditional 50% or so, the total photoelectric efficiency of more than 85%, life is more than the traditional street lamp 5 times. Niu Pingjuan said, with LED street lamps to replace the traditional street lights, can greatly reduce the gas pollution generated by street lamps, improve urban air quality. LED street lamp is a cold light source, not like the traditional street lamp in the use of high temperature, which reduces the heat loss. In addition, LED street lamps do not contain ordinary energy-saving lamps, mercury, lead and other harmful substances. "

LED accounts

New campus of a year to save electricity 1 million 800 thousand degrees

In the new campus of Tianjin University of Technology, lawn, bench, dormitory...... LED light shines everywhere. These lamps are the school of semiconductor lighting engineering research and development center. We have recently added 3000 indoor lights, now there are 5000. According to a year to calculate, the new campus of the University of LED lights can save 1 million 800 thousand kwh of electricity than before, equivalent to nearly 700 households a year of electricity consumption. Cattle Professor calculations: assuming 30% users worldwide to use energy-efficient lighting products, preliminary calculation can reduce 2.6 tons of carbon dioxide emissions and 460 billion kwh of electricity consumption, which is equivalent to the annual electricity consumption of India or Chinese annual electricity consumption 1/4. According to the Ten City million light plan, by 2010, China will be in 10 to 20 cities to promote more than 300 thousand LED municipal lighting lamps. From 2005 to 2015, China is expected to be a total of 400 billion yuan of semiconductor lighting energy saving, saving electricity costs of $260 billion for the user to create an output value of 150 billion yuan, to solve the employment of 1 million people. By 2015, China's annual electricity consumption of semiconductor lighting will exceed the annual power generation of the Three Gorges power station.

With the Binhai high tech Zone, Dongli Development Zone, the style of a number of residential quarters have been carried out this year, LED lighting demonstration project, marking the "Ten City million" semiconductor lighting application engineering pilot work in the city. It is understood that the city landscape lighting construction, rebuilding will use LED lights, is expected this year will have more than 5 small lamp power, low power consumption, uniform illumination, good environmental protection LED lights decorate the castle at night. After a year of testing, LED lights will replace the traditional high-pressure sodium lamp, will also be used more widely. According to the "Tianjin semiconductor lighting engineering implementation plan", plans to use 3 years in the city, five large plates by LED Universiade, LED campus, LED eco city, LED Industrial Park, LED traffic, the application of LED lighting lamp above 500 thousand. To 2012, Tianjin LED demonstration project can realize annual electricity savings of 250 million degrees, electricity savings of about two hundred million yuan, equivalent to saving 100 thousand tons of coal, 1 billion liters of water, less emissions 70 thousand tons of carbon powder, 250 thousand tons of carbon dioxide, 8 thousand tons of sulfur dioxide, 4 thousand tons of carbon dioxide. By 2015, the city will promote the use of 2 million LED street lamps, saving electricity to achieve 1 billion degrees, saving about $800 million.

Professor Niu said: "we in combination with several enterprises independently developed the first domestic LED car headlights, including the use of manufacturing high brightness light source lamp, headlamp, position lamp, steering lamp, got the support of the National 863 program. On the basis of this, the center has submitted the national standard of LED automotive headlamp. "

LED current status

City Industrial Company

Annual production of 300 thousand

"LED has the characteristics of energy saving and emission reduction, environmental protection and durability. It has a broad development space for our country, which is increasingly affected by the energy shortage. "The cow said," recently, high power semiconductor lighting engineering research center of Ministry of education at the Tianjin University of Technology listed, means a set of R & D, engineering and industrialization production innovation mechanism for the integration of gradually formed. "It is understood that the research center has been combined with the city's 61 enterprises set up R & D and Industry Alliance of Tianjin semiconductor lighting project, initially completed the LED on the middle and lower reaches of the R & D and industrial layout, increase the key materials of LED and terminal product development efforts.

At present, Tianjin University of Technology established industry company, Tianjin Gongda Haiyu Semiconductor Lighting Co Ltd, the implementation of universal semiconductor lighting industry, has formed annual 300 thousand high-end LED lighting products production capacity. In 2008, the company applied for 42 patents, including invention patents of 8. The products are used in many demonstration projects in China and exported to the United States, Europe, India and other places. from