1) Long focal length of lens
长焦距系统
2) Long focal length optical system
长焦距光学系统
1.
A new method is proposed for measuring the veiling glare index of long focal length optical systems based on the analysis of the properties and their application fields of present measurement devices and the theoretical analysis on the stray light sources is also given.
在分析现有杂光系数测量的基础上，提出了一种新的长焦距光学系统杂光系数测量的方法，并对这种方法进行了理论分
3) long focal and wide-field-of-view optical system
长焦距、大视场光学系统
4) zoom system
变焦距系统
1.
Design of target imaging zoom system for flight simulator;
飞行模拟器目标显示变焦距系统设计
2.
Optical design for middle infrared zoom system;
中波红外变焦距系统的光学设计
3.
One of the most important stages in the later period of zoom system design is to optimize the cam curve.
只有沿着准确的凸轮曲线控制变焦距系统的活动组份,才能保证有稳定良好的像质。
5) zoom lens
变焦距系统
1.
Based on geometrical optics and dampedleastsquares optimization and applying penalty functions, methods of determining the Gaussian parameters are studied for different types of zoom lenses, including those with one zooming group and one compensating group, with two zooming groups moving in connection, and with multiple moving groups.
针对变焦距物镜设计中高斯光学参数求解的难点,利用几何光学和乘子罚函数法对单变倍组与单补偿组、双组连动和多组元全动型等变焦距系统的高斯光学参数求解进行了研究,给出了系统高斯光学参数的求解方法。
6) Zoom systems
变焦距系统
1.
A new computable method of determining Gaussian parameters is presented for zoom systems with multiple moving lens groups.
在求解多组元全动型变焦距透镜高斯光学参数的过程中 ,不再区分变倍组与补偿组的概念 ,统一将变焦距系统运动组元的移动距离和焦距作为变量 ,并将组元的F数作为约束条件 ,提出了一种能同时求解多组元全动型变焦距系统在每个变焦位置高斯光学参数的计算方法 ,并给出了设计实例 ,证明了算法的可行性 ,提高了光学系统设计的智能化程度。
补充资料：变焦距镜头
能在一定范围内改变焦距的摄影镜头。在照相机、电影摄影机或摄像机位置不变时，也能摄下被摄体由远到近或由近到远的画面。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条