基于微镜阵列器件的反射式空间光调制器

为了实现数字微镜器件（DMD）在空间和时间上的精密控制，提出了一种基于单片微镜阵列器件投影系统的反射式空间光调制器的改进方案.通过对单片DMD投影系统进行软、硬件改进，达到用计算机控制DMD投影系统，使投影系统输出数字视频信号间接控制DMD器件中微镜阵列的目的，系统将静态图像在时间上组合，实现了可由程序控制的动、静态兼容的DMD反射式空间光调制器.结果表明，调制器可以精确控制到单个DMD像素，调制频率最高可达60 Hz，改变频率和占空比均可实现分级控制.

Reflex spatial light modulator based on micromirror array device

Spatial light modulating based on a single-chip digital micromirror device(DMD) projection system containing a micromirror array was improved to accurately control DMD in the space and time.The computer can control the DMD projection system and the projection system output digital video signal can indirectly control the micromirror array of DMD through improving the software and hardware of the DMD projection system.The system combined the static image in the time,and a compatible and program controllable reflex spatial light modulator system containing static controlling and dynamic controlling was realized.Results show that the modulator can control single pixel of DMD;the highest frequency of modulation is 60 Hz;changing the frequency and duty cycle can realize the spatial light modulator step control.