Semiconductor lighting and life asymptotic

At present, semiconductor lighting has begun to enter the home lighting, has become a bright spot in the modern living environment, play a role in beautifying and improving the quality of life.

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.

The requirements of indoor lighting on the light source is guaranteed to work, study and living environment to achieve comfortable lighting illumination standard and good 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 blue light white color temperature, color temperature of LED yellow phosphor 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. Firstly, the quality of the epitaxial wafer is improved, the internal quantum efficiency and luminous efficiency are improved, and the service life of LED is increased. Secondly, improve the packaging technology of LED, improve the efficiency of light, and solve the problem of high power LED heat dissipation. Thirdly, large-scale production, reduce the production cost of LED; finally, the development of new technologies to improve the color temperature and color rendering coefficient of LED.

From the current development of domestic and foreign technology, LED into the household lighting is an inevitable process. 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 expansion of the capacity of the MOCVD epitaxial furnace, the LED will greatly reduce the production cost of the LED unit, thus eliminating the biggest obstacle to the cost of conventional lighting.