摘要
在机械补偿变焦距光学系统中,通过利用变焦曲线控制变倍组与补偿组的移动来达到变焦目的.因此,为使变焦距光学系统在变焦过程中能够始终成像清晰且稳定,拟合出良好的变焦曲线是十分必要的.本文运用动态光学理论、CODE V和ZEMAX宏三种方法分别对一个20倍变焦距光学系统进行变焦曲线拟合,得到相应的运动曲线方程.根据所得到的三组曲线方程,随机选取若干变焦位置点,分别对这些位置点的光学系统离焦量、中心视场MTF和边缘视场MTF进行评价.数据分析表明,动态光学理论拟合出的变焦曲线在满足系统要求前提下更能够保证像面的稳定性.
In mechanical compensation zoom optical system, the zoom curve to control the movement of the zoom group and the compensation group. Therefore, it is very necessary to fit a good zoom curve to make the imaging of zoom optical system clear and stable during the zoom process. In this paper, the dynamic optical theory, CODE V and ZEMAX macro are used individually to fit zoom curve for a 20 ）K zoom optical system, then the corresponding movement curve equations can be generated. According to the three groups of curve equations, several random zoom position points are selected and evaluated in defocus and MTF of central field and edge field. Through the analysis of the data, the zoom curve fitted by the dynamic optical theory can meet the system requirements, and it is better to ensure the image plane stable.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2013年第1期94-97,共4页
Acta Photonica Sinica
