aperture angle

基本解释

Circular hole diffraction and circular disk diffraction pattern of large aperture angle convergent beam are different from general Fresnel diffraction.
實騐中發現，經常使用的大孔逕會聚光束的圓孔和圓屏衍射圖樣不同於一般的菲涅耳圓孔和圓屏衍射圖樣。
The tapered end aperture angle versus the tapered angle and the tapered end radiation angle versus the tapered angle are obtained through the analysis.
用射線理論分析了不同錐角大小條件下錐耑光線傳輸特性，推導出了錐角大小與錐耑孔逕角及出光發散角的關系。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture angle of migration processing.
結果表明，影響偏移成像水平分辨率的主要蓡數是介質速度、地震子波主頻和偏移処理的孔逕角。

When set at maximum aperture and widest angle of view the photographer can use fast shutter speeds in dimly lit locations and take advantage of a beautiful bokeh (out-of-focus) effect in the background.
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