1) fixed-focus objective
固定焦距物镜
2) focal distance of objective
物镜焦距
3) zoom lens
变焦距物镜
1.
Theory of equivalent magnification zoom lens with all lens elements movable;
等倍变焦全动型变焦距物镜理论分析
2.
Design of large aperture refractive-reflective zoom lens;
大口径折反射式变焦距物镜的设计
3.
The computation method of the Gaussian optics of zoom lens with many elements of magnifying lens and many elements of compensating lens is given by using optimization calculating method.
设定多个变倍组元和多个补偿组元并应用最优化计算方法，给出了最新型变焦距物镜多组元全动型高斯光学参数的计算方法，它概括了几乎所有机械补偿法的变焦方
4) short-focus objective
短焦距物镜
5) long-focus objective
长焦距物镜
6) universal focus lens
固定焦聚焦透镜
补充资料：固定
①不变动或不移动的（跟‘流动’相对）：～职业丨～资产。②使固定：把学习制度～下来。
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