基于DMD的电视图像目标模拟器变焦系统结构设计

根据电视图像目标模拟器光学系统设计的特点和技术指标要求,介绍了一种基于数字微反射器件(DMD)的电视图像目标模拟器变焦系统结构设计框架,详细介绍了变焦机构涡轮蜗杆以及箱体的结构设计。从机械设计角度出发,给出两个视场光轴调节方法,测试结果表明大、小视场光轴重合,满足不平行度小于1'的要求。整个系统结构紧凑,调试方便,像质良好,重量、体积均满足设计要求,满足模拟器的使用要求。

Mechanism Design of Zoom Optics for Visual Image Target Simulator Based on DMD

The mechanism design of the zoom system for the visual image target simulator based on the Digital Micromirror Device (DMD) is introduced. Two kinds of mechanism were described according to optic design of zoom lens; finally focus changing was achieved with turbine-worm. From the point of view of mechanical design, adjustment method of optical-axis for two view field was introduced. The whole system has the advantage of compact structure, adjustment convenience, satisfying the target aim. The tests show that optical-axis of two view fields is consistent, image quality is preferable which can meet the requirement of simulator.