1) focal ratio of primary
主镜F#
2) f-θ lens
f-θ镜
1.
Design of hybrid refractive-diffractive f-θ lens working on CO_2 laser drilling system;
CO_2激光雕刻机的折/衍混杂f-θ镜设计
3) f-theta objective lens
f-theta物镜
1.
The optical structure of the f-theta objective lens and the experimental results were given.
17,焦距40mm,总长140mm的f-theta物镜设计结果的光路图和芯片荧光测试实验结果。
4) F-theta lens
F-Theta镜头
1.
Study on Optical Design of Large Working Area F-Theta Lens;
大工作面F-Theta镜头的研制设计
5) F-theta lens
f-theta镜
1.
A varifocal f-theta lens was designed for CO2 laser making scan focusing system,so that it apply to differ making area but change a lens unnecessarily.
利用f-theta镜的负畸变效应和机械变焦原理,将三片透镜设计组合为具有三个可变档系统,该系统有效焦距分别为f-theta镜的三个常用焦距:305mm、360mm和410mm,相应扫描范围分别为:210×210mm2、250×250mm2和280×280mm2,扫描角均为±20°。
2.
A varifocal f-theta lens was designed for Nd:YAG laser making scan focusing system,so that it apply to differ making area but change a lens necessarily.
为Nd∶YAG激光打标机设计了变焦距f-theta镜扫描系统,以使它适用于不同的打标面积而不必更换镜头,系统由四片透镜组成,材料分别为BK7、SF18和SF11,系统总长度为122。
6) F-θ lens
F-θ镜头
1.
Design of hybrid refractive-diffractive f-θ lens with multi-wavelength,large working area
多波长、大工作面折-衍混杂f-θ镜头设计
2.
The optical design of F-θ lens,which is fit for laser marking as the focusing lens was introduced.
介绍一种适合于激光打标的聚焦镜头-F-θ镜头的光学设计。
补充资料：清心镜 华亭严因院主
【诗文】：
刘子温，性通达。父子三人，尽皆落发。便不、有相行持，认无妙法。个内净清灵宝塔。玉象金狮，绕围七匝。蓦然间、响亮玎铛，显妙音
【注释】：
【出处】：
刘子温，性通达。父子三人，尽皆落发。便不、有相行持，认无妙法。个内净清灵宝塔。玉象金狮，绕围七匝。蓦然间、响亮玎铛，显妙音
【注释】：
【出处】：
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