航空侦察相机设计与镜头结构分析

Aviation Reconnaissance Camera Design and Analysis on Camera Lens Structure

航空战术侦察是各种战术侦察中最为有效的手段之一。在现代化信息化武器中,航空侦察系统是必不可少的。本文具体介绍了光电型画幅式垂直相机的光学系统与机械结构的设计过程。对相机镜头结构进行模态分析,在分析模态时发现其前两阶固有频率低于用户所给指标,且其振型易对镜片成像产生影响。以提高刚度为目标改进结构,对改进后的结构做模态分析,满足要求。对镜头进行热环境分析,考察相机镜头在热环境下工作对成像的影响,结果满足要求。

The aviation tactical reconnaissance is one of the most effective means in various tactical reconnaissances. The aviation tactical system is necessary in all of the moden weapons. The optical system and mechanical design process of the optical frame vertical camera is introduced in this paper. After analyzing the camera lens mode, the analysis resuls show that the first two mode frequencies are higher than the user＇s requirements. In order to increase the camera lens stiffness, the structure is modified. Then analyzing the modified structure, the results meet requirement. In the thermal condition analyzing the camera lens, the results meet requirement.