LED lamp life has been one of the main issues of concern to everyone. Construction Good lighting cooling system alone choose low thermal resistance of LED components is not enough, it must reduce the PN junction to ambient thermal resistance, in order to minimize the LED PN junction temperature and improve the life of LED lamps and actual flux . The difference is that with conventional light sources, PCB LED power supply that is a carrier, but also the heat carrier, and therefore, thermal design of the PCB and the heat sink are particularly important. In addition, the material factors radiating materials, processing, and other connections thickness, size and thermal interfaces are lighting manufacturers to be considered.
LED lighting as a new field, the need to develop product standards, measurement standards, control and interface standards, etc., plus LED lighting products currently on the market varies greatly, many products are incomplete and likely to mislead the consumer, as well as from including competition organic light emitting diode (OLED) and other high-efficiency light sources and traditional low-cost light source, LED lighting industry in urgent need of a complete standard system to maintain and promote the healthy and sustainable development of the industry. The US Department of Energy (DOE) is actively promoting relevant standards for semiconductor lighting, China, Taiwan, Korea and Japan are also actively working to expand LED standards.
LED light efficiency higher the color rendering index often somewhat low, and indoor lighting requirements can be objectively display brightness and color of the object to obtain the human eye directly observed outside view of the real effect, and thus usually requires higher color index. This requires LED luminous efficiency at the same time, to further improve the color rendering index, but can also be incorporated in the lighting level to get some of the red LED display index greater than 90 results.
On indoor lighting is concerned, in particular domestic lighting is relatively sensitive to cost, although increasing style LED lamp, luminous efficiency is higher and higher, but the expensive problem still exists. This LED light source to be further cut prices, while the need to optimize the design from the perspective of the overall system, reduce overall costs. From compact fluorescent lamps is about just entering the market early reduced to below $ 15 now $ 1.5, can be seen, as the market continues to develop, in the near future, the price of LED lights are also more general public acceptance.
The development of LED interior lighting in the energy-saving environmental health of the premise, will be directed towards art, mini and personalized direction, thus narrowing the LED package size can increase flexibility and room for innovation in luminaire design time. Some light mixing effect shall be used to enhance the color of the case, the smaller package size will facilitate mixed light lens design and mixing light in.
