ABSTRACT
Recently, the requirements of industry product efficiency are getting more and more important. For lighting applications to be considered, the Light Emitting Diode (LED) possesses many advantages, such as no Hg pollution, small size, long life, high luminous efficacy, fast time response, lows power consumption [1], [2], etc. LEDs are becoming more common in energy-saving lighting applications, such as Liquid Crystal Display (LCD) background lighting, automotives, motorcycle lighting, and traffic lighting, decorative lighting, and so on, and may even be considered for general lighting applications in the near future.
