全固态激光电视的研究  

The laser television based on all-solid-state laser

作　　者：王与烨[1] 于意仲[1] 徐德刚[1] 王鹏[1] 姚建铨[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院激光与光电子研究所

出　　处：《光电子．激光》2008年第6期739-742,共4页Journal of Optoelectronics·Laser

基　　金：国家“863”计划资助项目(2002AA311190)

摘　　要：阐述了转鼓振镜扫描激光电视系统的设计,系统采用瓦级以上的红、绿、蓝全固态激光器作为光源,合理计算三基色的功率配比,采用多面转鼓和振镜分别实现行、场扫描。设计中采用图像存储、转鼓镜面位置检测的方法,即利用检测到的转鼓位置信号来控制存储的图像信息的读取,从而进一步控制调制器和振镜,很好的实现了同步扫描。该方法降低了光学扫描系统的制作难度,避免了转鼓转速起伏、镜面加工时的角度分割误差对扫描造成的不利影响。制成的激光电视样机扫描面积为5m2,显示的彩色视频图像亮度高、色彩鲜明。The principle and design of a laser television are introduced. The light source of the system is composed of all-solidstate red,green and blue lasers with watt-level output. The ratio of power for the three lasers is calculated. The laser beam is scanned simultaneously by rotating polygonal mirrors for horizontal lines and a vibrating mirror for vertical lines. Synchronous scanning is successful realized by image storage and detection for the position of polygonal mirrors,namely,the position of polygonal mirrors determines the read of storage signal and the behaviors of intensity modulators and vibrating mirror. This scanning control scheme lowers the manufacturing requirements for the optical scanning system. Moreover,the adverse influences of polygonal angular division error and the fluctuation of the rotation speed are avoided. The scan area of our laser television is 5 m^2. High-brightness and high-sharpness images are displayed.

关 键 词：激光电视 扫描 转鼓 全固态激光器 

分 类 号：TN873[电子电信—信息与通信工程]