在光学仪器的装校过程中,常常碰到选配物镜的问题,特别是在光学测距仪中,对物镜的选配要求很严,其焦距相对误差往往只允许万分之几。由于物镜焦距相对误差(即倍率差)的存在,在视场中不同位置进行测距时将导致线视差(或角视差)产生变化,从而得到不同的 In the process of assembling optical instruments, the problem of matching objective lens is often encountered. Especially in the optical range finder, the requirements on the matching of the objective lens are very strict. The relative error of the focal length often only allows a few tenths. Due to the relative error of the focal length of the objective lens (ie, the difference in magnification), the difference in linear parallax (or angular parallax) occurs when ranging at different positions in the field of view results in different