fresnel formula 中文意思是什麼
fresnel formula
解釋
菲涅耳公式-
A simply and analytical formula of the axial light intensity distribution behind a circular aperture is derived by using the helmhotz - kirchhoff integral theorem and the kirchhoff ' s boundary conditions. it is studied the nonparaxial on - axis intensity distribution throughout the whole space behind a circular aperture. an accurate formula to calculate the fresnel number of circular aperture is presented and the validity of usual fresnel number formula is reexamined. by using the analytical formula and diffraction integral formula, some numerical simulation comparisons are done, and it is shown that the results of the two methods are completely coincident
用亥姆霍茲-基爾霍夫積分定理和基爾霍夫邊界條件，推導出了平面波經小圓孔非傍軸衍射時軸上強度的簡單解析表達式，研究了平面波經小圓孔后整個衍射空間非傍軸的軸上光強分佈.給出了計算圓孔菲涅爾數的精確公式，重新檢查了通常的菲涅爾數公式的有效性.數值計算顯示，應用解析表達式所得的結果與應用衍射積分公式所得的結果完全一致 -
Based on huygens - fresnel diffraction integral theory, the propagation properties of bessel beam were studied in this paper. by using the analyses of geometrical optics, hollow beam are found and the formula of the starting point 、 the end point and the bottle length can be got
論文中，我們基於惠更斯-菲涅耳衍射積分理論研究了由軸棱錐產生的貝塞爾光束的傳輸特性，並且通過幾何光學解析無衍射光束的聚焦特性。 -
The main contents of this thesis are : ( 1 ) two numerical reconstruction methods - direct fourier transform method and envelope method, are presented. these methods are deduced on the base of fresnel diffraction integral formula, which is under the condition that particle field is illuminated by plane wave
主要工作內容有： （ 1 ）分析推導了平面物菲涅耳衍射的兩種常用數值實現演算法，即直接傅里葉變換法和卷積法，結論表明後者更符合實際工作的要求。 -
The rendering algorithms based on the use of texture maps and piecewise approximate fresnel formula of reflection is proposed after analyzing the fresnel formula
同時分析了fresnel函數的特點，給出基於紋理映射和分段近似fresnel函數的水流渲染演算法。 -
According to the structural feature of polarizing prisms, we transform the parameters related to the structure of prisms into geometric model, and use this model to solve the problem of the relation of different angles. along with fresnel formula and multiple - beam interference, we get the formula of light transmission
根據棱一鏡的結構特點，將與棱鏡結構有關的各參量轉化為數學模型，利用此數學模型來解決各角度之間的關系問題，並結合菲涅耳公式和多光束干涉理論得到了棱鏡的光強透射比分析公式。
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