一种增加LED照明时序彩色投影系统亮度的方法  

Brightness enhancement in LED lighting sequential colorized projection systems

作　　者：黄恩立[1] 王英男[1] 倪旭翔[1] 

机构地区：[1]浙江大学现代光学仪器国家重点实验室,国家光学仪器工程技术研究中心,浙江杭州310027

出　　处：《光电子．激光》2010年第4期508-511,共4页Journal of Optoelectronics·Laser

基　　金：国家"863"计划资助项目(2009AA01Z325)

摘　　要：基于微型投影显示的色域特性和色彩实现机制,提出了一种提高微型投影系统亮度的方法。在基色子帧中引入其它基色,实现基色坐标的变换,再对微型投影系统亮场白平衡,分析并比较系统在绿色基色校正前后的性能。从理论分析了各色LED的最大工作电流、各基色色坐标和白场色坐标对通过基色校正提高亮度效果的影响。将该方法应用于实验室研发的微型投影系统,在保证系统显示性能的同时,亮度有了25.24%的提升。A novel method that can effectively enhance the micro-projection system＇s brightness is proposed based on the micro-projection system＇s gamut characteristic and color realization mechanism. Other primary colors are mixed into a particular primary color to change the primary colors coordinates, then the white field of micro-projection system is balanced and the performance before and after correc- ting the primary color is compared. The LEDs＇ maximum working current, the primary colors coordi nates and white field＇s coordinates can effect the brightness enhancement, the relation is discussed. The method is applied to the micro - projection system researched by our lab , the brightness is increased 25. 24% ,when the system＇s performance is ensured.

关 键 词：时序彩色 LED照明 亮度增强 微型投影 

分 类 号：TN873.92[电子电信—信息与通信工程]