靶场光学测量中的变焦距光学系统

变焦距光学系统通过调整光学系统参数,改变光学系统的焦距来保证光学系统动态成像的需求。本文从变焦距光学系统的基本原理出发,简单描述了光学补偿与机械补偿变焦光学系统的设计,阐述了常见变焦距光学系统的类型与结构。指出了传统变焦距光学系统存在的问题,结合DSP和步进电机在变焦距光学系统中的最新应用,概述了靶场光测设备的变焦距光学系统的最新动态,分析了电机直传技术在靶场光测设备应用的可行性,意在为新一代数字变焦光学系统提供理论参考。

Varifocal optical system to optical measurement of shooting range

Varifocal optical system can meet the requirements of dynamic optical systems by changing optical parameters of optical components to adjust optical paths.This paper firstly introduces the fundamentals of varifocal optical system,and describes the design of the varifocal optical systems based on optical compensation and mechanical compensation.Then,it elaborates the type and structures of common focusing mechanisms and analyzes their advantages and disadvantages.It points out that along with the DSP control technology and stepping motor development,the varifocal optical mechanism has entered a new prospect.By making a reference to domestic and international engineering applications,the research shows that the numerical control technology based on stepping motors and DSP has an extensive forecast on varifocal optical mechanisms in the range equipment.