Li Jinmin: LED into the family interior lighting is an inevitable process

The LED can be used for indoor lighting, which can adjust the lighting source to make the indoor light change with the time of the morning, noon and night. At present, semiconductor lighting has begun to enter the Home Furnishing lighting, decorative lights from the festival of the most simple, to the desktop lighting lamps, chandeliers, gallery lights and garden lights, especially combined with solar battery, has become a modern living environment highlights, beautify and improve the quality of life of the role. Semiconductor lighting speed of development is basically every 18 months luminous efficiency increased by 50%, the cost decreased by 1 times. From the United States semiconductor lighting plan roadmap can know, in 2007 the white LED gradually into the general lighting market. By 2010, part of the white LED will replace fluorescent lamps, into the main market, including home lighting. China's semiconductor lighting applications in the market has exceeded the United States, I believe in 2010 will occupy a larger market share in home lighting. Indoor lighting for the light source requirements are: to ensure that the work, learning and living environment to achieve a comfortable standard of illumination and lighting quality, objectively display brightness and color of the object, to obtain the true effect of direct observation of external features of human. At the same time of high luminous efficiency and brightness, the color temperature and high color rendering index should be close to natural light. The main problems existing in the interior of the semiconductor lighting is a light effect should be improved; two is the color blue light white LED color yellow fluorescent powder synthesized by cold; three is the color index, show ideal color coefficient of solar spectrum as well as the gap between the four is the actual life; life is affected by many factors. From the theory of 100 thousand hours of life is still relatively far away; five is the power, the power is low, can not meet the needs of indoor lighting. LED into the indoor lighting is the most important milestone in the semiconductor lighting into the general lighting market, the technical problems faced by the most prominent, which needs to continue to develop from the following aspects. First of all, to improve the quality of chip epitaxial materials, improve the internal quantum efficiency and luminous efficiency, increase the service life of the LED; secondly, the improved LED encapsulation technology, improve the light efficiency, and solve the problem of heat dissipation of high power LED; thirdly, the scale of production, reduce the production cost of the LED; finally, the development of new technology to to improve the LED color temperature and color factor. From the current development of domestic and foreign technology, LED into the household lighting is an inevitable process. Reasonable and effective government organizations, coupled with China's scientific research ability and enterprise base, we have full confidence to achieve this goal. Home lighting if the general use of LED lighting tools, the market will be very great. The next 35 years is an important period of development, semiconductor lighting in the field of general lighting will emerge like mushrooms. With the development of new technologies and the gradual expansion of the capacity of the supplier's MOCVD epitaxial furnace, the production cost of the LED unit will be greatly reduced, thus eliminating the biggest cost barrier for LED to enter the ordinary lighting.

Source: China electronic newspaper