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1)  stop opening
光圈孔径
2)  Aperture [英]['æpətʃə(r)]  [美]['æpɚtʃɚ]
光圈,有效孔径
3)  diaphragm aperture
光阑孔径
4)  clear aperture
通光孔径
5)  aperture diaphragm
孔径光阑
1.
Based on diffraction integral formula and selfreproducing principle,diffraction integral equation for transverse modes in a circular symmetric resonator with an aperture diaphragm was disintegrated to finitesum matrix equation,and field distributions of transverse modes in the resonator were calculated by solving matrix for eigenvalues and eigenvectors.
结果证明,孔径光阑的位置和尺寸直接影响激光输出模式和花样。
6)  aperture [英]['æpətʃə(r)]  [美]['æpɚtʃɚ]
孔径光阑
1.
According to the basic relation E =φ/A, a direct optical method for aperture area measurement was provided, based on known constant irradiance over the aperture.
根据辐射照度与面积的基本关系,采用平行等间隔的相同激光束相互重叠,形成空间均匀的照度区域,且覆盖孔径光阑。
补充资料:T制光圈

T制光圈(T number),又称T值。普通镜头的光圈是用F值表示的,但除了焦距和镜头口径之外,指将镜头的透过系数考虑在内的数值。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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