LED to enter the field of general lighting technology costs need to cross the two line

LED (light emitting diode) is a kind of energy-saving, environmental protection, long life and multi-purpose light source. Professional consulting institutions predict global high brightness LED market will reach $9 billion in 2011, an average annual compound growth rate of 16.7%. With the rapid increase of LED luminous efficiency, the LED application market has stepped into the general lighting. But LED is also faced with the development of high cost, uncertainty of the performance of the bottleneck, in the current global as much as $10 billion in lighting business opportunities, the high price of LED is still the main factor restricting its development. The high cost can not be fully commercialized from the last century since 60s the first commercial LED market, LED has been used for 40 years in the lighting industry, the industry of the middle and lower reaches has formed a relatively complete industrial chain, LED is used in more and more industries, especially in the field of indoor lighting is recognized the LED is an important aspect of future development. In the field of indoor lighting, the main application is still the traditional light source, including incandescent lamp, halogen tungsten lamp, fluorescent lamp, metal halide lamp, etc.. This kind of light source consumes a large amount of electricity, the color and the control mode are single, and the heat radiation of the light source is big. LED light source has the advantages of easy control, full of energy saving and environmental protection, high quality light environment can be created to replace other traditional light sources, can fully meet the high-grade interior decoration lighting market demand, provides a new way for indoor space lighting design. In particular, the emergence of high-power LED for LED lighting in the field of indoor lighting applications to find a breakthrough, accelerated the application of LED in the field of indoor lighting. According to reports, at present, the application of LED in indoor lighting engineering is mainly concentrated in the field of commercial lighting, decorative lighting based. At this stage, LED is already available in many places to replace the traditional light source, especially the emergence of high power LED, the acceleration of LED to replace the traditional lighting speed, but also makes the LED become more realistic in a large area of indoor lighting applications. With the vertical depth the whole industry maturity and development of LED products, LED in high power price and light effect will have great changes, coupled with the national policy to guide, to actively promote the social public opinion, we have reason to believe that the next ten years, LED will be like a fluorescent lamp now, fly into the homes of ordinary people. However, because of the high production cost, the indoor lighting of white LED lamps can not be fully commercialized in the global market. Secretary General of the Shanghai Optoelectronics Industry Association, Chinese lighting industry association of semiconductor lighting Specialized Committee director Tang Guoqing stressed in an interview with reporters, LED into the interior of the general lighting is the trend of development, but the cost is still high, wide range of upgrading alternative incandescent lamps, fluorescent light still need time, but in the mood lighting (indoor lighting museums, concert halls, high-grade hotels, residential, etc.) or the reception office lighting, indoor public places (such as indoor parking lot, commercial field) and other areas have been gradually extended. "The final realization of semiconductor lighting requires the popularization and application of indoor lighting, which is the keynote of development. Tang Guoqing said. China optical photonics industry association branch of the Secretary General of optical devices, said Peng Wanhua, LED lighting products cost is too high, is a few times the ordinary lighting, some ten times. The field of LED product application is currently in the stage of development and expansion, has not yet formed a large-scale market, pending further development and expansion. Effect of light and heat problems remain to be solved in recent years, with the rapid development of white LED technology, people began to seriously consider whether LED has time to enter the large-scale indoor lighting field, the general manager of Shanghai Blaupunkt photoelectric materials company Bingwen beam said that many useful and practical solutions have been proposed, application LED in the field of indoor lighting is still in the exploratory stage. Interior lighting is a very huge market, the market outlook is indisputable. But the quality of indoor lighting light demanding LED, there are many places need to be improved, in the field of indoor lighting, the short term will not be on the traditional light source including incandescent lamp, halogen lamp, threatening fluorescent lamp, energy saving lamp, metal halide lamp etc.. Liang Bingwen stressed. Shanghai think science and Technology Development Co., Ltd. Cheng Deshi believes that LED application in indoor lighting has a basic threshold, that is, the luminous efficiency must reach the level of fluorescent energy-saving lamps. If the price factor is taken into consideration, the luminous efficiency of LED should be at least 1.5 times higher than that of fluorescent lamp. Currently, LED is far from reaching this level. "There is one of the most simple way to judge, with the touch of the LED lamp heat sink, when the heat sink temperature is lower than the temperature of the fluorescent lamp shell, LED indoor lighting era can really come. Cheng said. Fudan University professor Fang Zhilie believes that indoor lighting is undoubtedly the largest market. Taking into account the energy-saving lamps, fluorescent lamps, the luminous efficiency has not been too much (laboratory records have doubled, but the product efficiency is almost the same), plus the cost is much higher, the market is still waiting to start. "Fang Zhilie thinks. Peng Wanhua said, LED industry from the current situation is still very small, only tens of billions of yuan in the market. LED technology has yet to be a breakthrough, especially the efficiency of the current level of industrialization is generally 60lm/W ~ 80lm/W, compared with the advantages of energy-saving lamps, the index should be raised to 150lm/W ~ 200lm/W. In addition, the main parameters of the general lighting LED requirements are not yet clear, such as color temperature, color rendering, safety, etc.. Peng Wanhua said. Improve the technical transformation platform for the potential market of LED products is very large, Peng Wanhua think,