... diaphragm gauge 薄膜式压力计 diaphragm opening 光阑孔 diaphragm preselection ring 光圈调节圈 ...
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... diaphragm of sella turcica 鞍膈 diaphragm orifice 光阑孔 diaphragm packing ring 迷宫式隔板汽封环 ...
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可变光阑孔径 iris aperture
透镜光阑孔 lens diaphragm opening
光阑孔径 [天] diaphragm aperture ; aperture of the diaphragm
孔径光阑 aperture stop ; [光] aperture diaphragm ; Diaphragm ; AS
光阑孔经 aperture of the diaphragm
光阑小孔畸变 aperture distortion
针孔光阑 pinhole diaphragm
照明孔径光阑 illuminating aperture diaphragm
及孔径光阑 Aperture Stops
使用基尔霍夫衍射积分公式和菲涅耳衍射积分公式对高斯光束通过方孔光阑的衍射进行了研究。
The diffraction of Gaussian beams at an square aperture is studied based on the Kirchhoff and Fresnel diffraction integrals.
当外孔大于1.5倍束腰时，衍射后轴上光强调制被有效压抑，这为选择光阑提供了合理参数。
While the modulation characteristics disappear as the outer circular aperture is bigger than 1.5 times of the beam waist size, the results offer reasonable aperture parameter for diffraction.
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