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日益提高的发光二极管(LED)效率正在降低蓝色LED的成本,从而使新一代的高亮度器件具有多种颜色,以致能发射出白光来.LED读出器供应商除了使蓝色LED的价格能被人接受外,还在提高全面的亮度,倾向于制成表面贴装封装,并设计出独特配置的LED,以便从不同角度向印制板发射光.蓝色LED已经问世10多年,但是其售价高达50美元,因而不能在大多数应用领域使用.由于小片技术得到大幅度改进,因而蓝色LED价格已降低
Increasing the efficiency of light-emitting diodes (LEDs) is driving down the cost of blue LEDs, enabling a new generation of high-brightness devices with multiple colors to emit white light. In addition to making the blue LED price Can be accepted, but also to improve the overall brightness, tend to make surface mount packages, and the design of the unique configuration of the LED, in order to light from different angles to the printed board. Blue LED has been around for more than 10 years, but With prices as high as $ 50, it can not be used in most applications and the price of blue LEDs has dropped due to the dramatic improvements in die technology