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In 1879, Edison invented the world's first incandescent lamp, using carbon wire as a filament, opened the first revolution in the history of human lighting. The principle of incandescent lamp is that the filament generates heat and generates visible light, and the luminous efficiency is low. The efficiency of converting electric energy into light energy is less than 5.
In the 1940s, fluorescent lamps appeared and the energy conversion efficiency increased to 25, making it the second revolution in lighting technology.
In 1962, LED light sources appeared, and the energy conversion efficiency increased to more than 60. Compared with various traditional light sources, LED light sources have the advantages of long service life, excellent energy saving performance and rich colors, which have become the third revolution of lighting technology.
The development history of human lighting history With the continuous development of LED technology, LED is breaking through the problems of light decay, heat dissipation, light efficiency, etc., and has gradually become a recognized new energy-saving and environmental protection light source, which has gradually been in landscape decorative lighting, portable lighting, outdoor architectural lighting. And other fields are widely used. Since 2011, LED lighting has made breakthroughs in indoor lighting, road lighting and other fields, and is expected to become mainstream around 2015.
Development of the domestic LED lighting industry In early 2006, the State Council issued the “National Medium- and Long-Term Science and Technology Development Planâ€, which included the high-efficiency, energy-saving and long-life semiconductor lighting products in the first priority of the first priority area (energy) in the medium and long-term planning. (Industrial energy-saving) has attracted widespread attention at home and abroad; in October of the same year, the National Eleventh Five-Year Plan 863 Program Semiconductor Lighting Project was officially launched.
On January 10, 2008, the Ministry of Finance and the National Development and Reform Commission jointly issued the Interim Measures for the Administration of Financial Subsidy Funds for Efficient Lighting Products to Promote the Rapid Development of the LED Industry.
In 2009, the Ministry of Science and Technology launched a pilot project for the application of semiconductor lighting applications in ten cities in 21 cities. Public spaces in the city such as roads, tunnels, parking lots, gas stations and other places have vigorously promoted the installation of LED lighting.
On November 4, 2011, the "Notice on the gradual ban on the import and sale of ordinary lighting incandescent lamps" issued by the National Development and Reform Commission and the five ministries and commissions clearly stated that the incandescent lamps will be phased out and planned to be October 1, 2016. Incandescent lamps will completely withdraw from the market.
On July 11, 2012, the Ministry of Science and Technology released the "12th Five-Year Special Plan for the Development of Semiconductor Lighting Technology." The plan proposes that by 2015, China's semiconductor lighting industry will reach 500 billion yuan, and cultivate 20-30 leading enterprises with core technologies, more independent intellectual property rights and independent brands, and support 40-50 innovative high-tech enterprises. 50 pilot cities of 10 cities and 10 pilot cities and 20 industrial bases with strong innovation capabilities and distinctive features, improve the industrial chain, optimize the industrial structure, increase market share, and significantly enhance the international competitiveness of the semiconductor lighting industry.
The promulgation and implementation of the above policies and measures have greatly promoted the LED lighting industry in China. In recent years, China's LED lighting industry has experienced rapid growth. In 2009, the output value of China's LED lighting industry was only 23.288 billion yuan, but by 2013, the output value of China's LED lighting industry has exceeded 110 billion yuan, with an average annual growth rate of 49.50.
Domestic LED lighting industry competition There are tens of thousands of domestic LED lighting companies, but there are generally small-scale, weak technical strength, low product quality, high-end products are still dominated by foreign manufacturers. From the perspective of regional distribution, domestic lighting production enterprises are mainly distributed in the Pearl River Delta region and the Yangtze River Delta region. Similar to the distribution of traditional lighting companies, China's LED lighting companies are also mainly distributed in the above two regions. However, compared with the Yangtze River Delta region, many LED packaging companies and accessory manufacturers are located in the Pearl River Delta region. The Pearl River Delta region has a more complete LED industry chain, so LED lighting companies are more distributed in the Pearl River Delta region.
Analysis of the development prospects of the domestic LED lighting industry From the development prospects of China's LED application field, LED lighting faces a broad space for development. In recent years, with the continuous breakthrough of LED white light luminous efficiency and cost reduction, the pace of LED entering the general lighting field has gradually accelerated, and it is expected to become a substitute for traditional lighting sources such as incandescent lamps and fluorescent lamps in the next few years.
It is estimated that the output value of China's LED lighting industry will increase by 58 in 2014, reaching 180 billion yuan.