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As a new kind of semiconductor photoelectric device, Light-emitting diodes (LEDs) have begun to play an important role in many illumination applications due to their excellent performance in terms of high brightness, energy-saving and environment friendly. However, thermal management is one of the major issues to be improved for implementing LEDs into illumination applications because heat affects...
LED with many advantages such as high brightness, long-lifetime, and energy-saving has been successfully applied to various fields, especially on special lighting applications. At low temperatures, LED is more uniform in illumination and has a higher luminous efficiency, which is regarded as the next generation refrigeration system lighting. As well as in some cold regions, LED has also become the...
The degradation of high power white and blue light-emitting diodes (LEDs) was investigated by considering the electrical, optical and phosphor conversion. The LED samples were tested at the elevated temperature of 40°C with 700mA, 900mA, 1200mA. In order to research the degradation rule of fluorescent power in white LED, aging studies using white and blue LEDs with same batch of chips under same invariableness...
LED lighting becomes the forth generation green lighting. However, in terms of LED development and large-scale application, the reliability of LED has become one of the technical bottlenecks. This paper carried out the research on the thermal-humidity reliability of high power LED module by the means of experiment and simulation, which mainly aims at the reliability problems existed in high power...
LED with the advantages of high brightness, long-lifetime, energy-saving and environmental protection is widely used in varieties of fields especially the lighting industry. Thermal performance is the key to high power LED lighting integration, which has got broad concern and research. And the thermal management and thermal reliability has been improved quickly in recent years. While, more and more...
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