Beautiful Expo Axis, Bright Night Views, and Grand Riverside Views Whenever you enter the Shanghai Expo site at night, visitors are always attracted by this colorful garden of dreams. What kind of light can be so bright? Probably many tourists will have such questions when they linger on. The answer to all this is LED technology. Shanghai World Expo Park is the world's largest LED technology display area.
Billion LED lights up at the opening ceremony of the Shanghai World Expo. In addition to the gorgeous fireworks, the 300-meter-long and 30-meter-high LED display screen makes many people wonder. And it is also the world's largest outdoor LED display. From the Sunny Valley on the Expo Axis to the Qingming Shanghe map in the China Pavilion, to the submarine signs at the entrance to the park, and to the lights in the various stadiums, the technology in the Expo Garden can be seen everywhere. According to Zhu Weihua, deputy director of the Electronic Information Industry Division of the Shanghai Municipal Economic Information Commission, a preliminary estimate of a total of 1.03 billion LED chips was used throughout the Shanghai Expo site. About 80% of the indoor lighting sources in the Expo venues use green light sources.
Why is the reason why the World Expo Site uses energy-saving LED technology in the Expo Park? Compared to ordinary energy-saving lamps, what are the advantages of LED? The Shanghai World Expo held yesterday to sense the activities of Shanghai has solved the puzzle for us.
You touch this lamp. In the product showroom of Shanghai Sansi Technology Development Co., Ltd., Chairman Chen Bishou laughed and invited reporters to touch the exceptionally bright fluorescent tube. The reporter carefully looked at the lamp underneath, and he couldn't find the ballast. Only a few computer-chip interfaces were exposed. From the perspective of its brightness, if you change the ordinary lamp, it must be hot too hot. However, when reporters carefully pressed their fingers on them, they did not feel awkward.
This is the advantage of LED lights, not only energy efficiency, heat dissipation. Using LED technology, at the same power, its power consumption is at least 40% lower than that of conventional lamps. LED lights can directly convert electricity into light, which is a very energy-saving and environmentally friendly green lighting source. According to this calculation, with the use of LED technology, the power consumption of the entire Expo site is about 30% less than that of using ordinary light sources.
Shanghai has already taken the lead in the country, Zhu Weihua. At present, China has included semiconductor LED lighting in its medium and long-term science and technology development plan. In September last year, Shanghai also made clear the development of LED as the new display area. At present, as one of the national semiconductor lighting engineering industrialization bases, Shanghai has basically established a relatively complete epitaxial production, chip preparation, packaging integration, LED application industry chain.
Zhu Weihua told reporters that in terms of LED technology, China is at the forefront of the world, and in China, Shanghai is the vanguard of this. For the Shanghai World Expo Opening Ceremony big screen, the display center of the Expo Cultural Center and the display lighting equipment of many venues, Shanghai Sisi, which provides LED technical support, is the leader of the LED industry in China, and it also ranks among the top three in the world. .
Manufacturing costs are still a bit high. Since LED technology is so energy-efficient, why not let it enter the family home as soon as possible? The key is still to solve the cost problem. Zhu Weihua told reporters that due to the very high technical content of LED lights, not only the support of chip technology, but also strict requirements on heat-dissipating materials, etc., as well as corresponding standards in terms of facilities and equipment, the relatively large manufacturing costs make the selling price higher than normal. A piece of light. Ordinary energy-saving lamps can be purchased for 20 yuan, and one LED lamp may be 100 yuan. Zhu Weihua said that although costs are a major bottleneck in limiting the civilian use of LEDs, the city has already provided many supportive policies in this area, and has increased the number of engineering materials, equipment technologies, and software electrification and technological transformation. Promotional support.
If we can reduce the price from 100 to 50, then it is no surprise that citizens use LED lights at home.
Hongzhun Lighting Factory , http://www.gdflashlights.com