LED 在民用飞机驾驶舱泛光照明中的应用

摘要

This paper started with the correlative standard of cockpit lighting in civil aircraft , and then the illumination requirements of flood lights were proposed . The advantages of LED for flood light were anatomized according to the character of LED source .On the basis of the character of LED and the research result of ergonomics , the analysis of flood lighting design was presented in detail in the following four aspects, such as light color, power supply, collocation and dimming control, and a project which were white light LED, 28VDC power supply and PWM dimming was produced .Finally, simulation test was putted in practice and the result showed that optical performance met better the requirement of flood light .%本文从民用飞机驾驶舱照明的相关标准出发，提出了泛光照明的照度需求。结合LED光源本身的特性，剖析了LED应用于泛光照明的优势。基于LED光源的特性和人体工效学的研究结果，从光色、供电、布置和调光控制等4方面对泛光照明的设计进行了详细地分析说明，形成了一种方案：白光LED、28VDC供电、 PWM调光。最后，选用合适的灯具进行仿真测试，结果显示其光学性能较好地达到了泛光照明的要求。