This problem is eradicated with the Iris Variable Aperture Collimator described by Gernot Echner and colleagues .
Gernot Echner及其同事所描述的鸢尾花型可变孔径准直器可彻底解决这个问题。
This paper discusses a method of continuous variable aperture(CVAFF)to measure the mode-field diameter(MFD)in single-mode fibers.
本文讨论一种用于单模光纤模场测量的连续变孔径方法。
A full description of the variable aperture collimator, which makes it easier to switch field size during CyberKnife procedures, is published in Physics in Medicine & Biology.
可变孔径准直器在赛博刀治疗规程中能更容易地切换射野大小，关于它的完整性能描述刊登在了《医学与生物学物理》杂志上。
Placing a diffractive optical element(DOE) on the incident laser beam to improve the depth of focus, the DOE'S aperture is variable.
在入射光束的孔径受限制的情况下，利用衍射光学元件来增加激光束的焦深。
Placing a diffractive optical element(DOE) on the incident laser beam to improve the depth of focus, the DOE'S aperture is variable.
在入射光束的孔径受限制的情况下，利用衍射光学元件来增加激光束的焦深。
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