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fresnel

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fresnel Fresnel , Augustin Jean 夫瑞奈〔...

Fresnel , Augustin Jean 夫瑞奈〔1788-1827，法國物理學家〕。 “fresnel approximation“ 中文翻譯：   菲涅耳近似; 菲涅爾近似“fresnel bimirror“ 中文翻譯：   菲涅耳雙鏡; 菲涅耳雙面鏡; 非涅耳雙鏡“fresnel biprism“ 中文翻譯：   菲涅耳雙棱鏡“fresnel collector“ 中文翻譯：   菲涅耳集熱器; 菲涅爾集熱器“fresnel counter“ 中文翻譯：   菲涅耳計數器“fresnel diffractino“ 中文翻譯：   菲涅耳衍射“fresnel diffraction“ 中文翻譯：   菲涅耳衍射，菲涅耳繞射; 菲涅耳衍行; 夫瑞奈繞射“fresnel drag“ 中文翻譯：   菲涅耳牽引“fresnel ellipsoid“ 中文翻譯：   菲涅耳橢圓體; 夫累耐爾橢圓體“fresnel equation“ 中文翻譯：   菲涅耳方程“fresnel facet“ 中文翻譯：   菲涅爾刻面“fresnel formula“ 中文翻譯：   菲涅耳公式“fresnel fringe“ 中文翻譯：   菲涅耳條紋; 夫瑞奈條紋; 弗雷斯內爾條紋“fresnel fringes“ 中文翻譯：   弗雷斯內爾條紋“fresnel hologram“ 中文翻譯：   菲涅耳全息圖; 菲涅爾全息圖; 非涅耳全息圖“fresnel integral“ 中文翻譯：   菲涅耳積分; 菲涅爾積分; 柯奴螺線“fresnel integrals“ 中文翻譯：   菲涅耳積分“fresnel lantern“ 中文翻譯：   屈折反光燈“fresnel law“ 中文翻譯：   菲涅耳定律; 菲涅爾定律“fresnel lens“ 中文翻譯：   菲涅耳鏡; 菲涅耳透鏡; 菲涅爾透鏡“fresnel lenses“ 中文翻譯：   菲涅爾透鏡“fresnel loss“ 中文翻譯：   夫累耐爾損失; 夫瑞奈損失“fresnel mirror“ 中文翻譯：   菲涅耳鏡“the fresnel zone“ 中文翻譯：   可視距離的橢圓形區域“fresnel annular zone objective“ 中文翻譯：   菲涅耳環帶物鏡; 菲涅爾環帶物鏡“fresnee“ 中文翻譯：   弗雷內

fresnel mirrors

In the first part , we have studied the stimulated algorithm of the diffraction of light ; and , through direct integral , convolution , and fourier transform , we created the numerical algorithm of fresnel integral and additionally , these three methods have also been compared in this paper 首先研究光線衍射傳播的模擬算法，分別利用直接積分法、卷積法和傅里葉變換法實現了菲涅耳積分的數值計算方法，同時比較了這三種方法的優劣。

In order to analyze the experiment results , monte - carlo simulation was used to calculate the photons migration traces in the uniform tissues and the fresnel ' s law is used to determine the refraction and reflection components of a photon package at the boundary between the fat and the muscle 為了分析實驗結果，用蒙特卡羅仿真來計算光子在均勻介質中遷移軌跡，用菲涅耳定律來決定光子包在脂肪和肌肉邊界處的折射分量和反射分量。

In this thesis , we present the law and method to generate structured illumination based on fresnel diffraction . by applying rsd theory , we analyzed the spatial distribution of fresnel diffraction field of sinusoidal grating and its available application in 3d sensing 本文詳細地研究了基于菲涅耳衍射的結構照明的原理和方法，利用角譜理論(平面波衍射理論)分析了正弦光柵的衍射光場的空間分布及其在三維傳感中應用的可能性。

Abstract : in this paper , starting from the generalized huygens - fresnel diffraction integral and b - integral definition , and based on the statistical - optics method , the nonlinear propagation properties of laser beams with amplitude modulations and phase fluctuations have been studied in detail 文摘:廣義惠更斯-菲涅耳衍射積分和b積分定義出發，并利用統計光學方法，對有振幅調制和位相畸變光束的非線性傳輸特性作了詳細研究。

The principle and structure of pyroelectric infrared detector consisted of pyroelectric infrared sensor , fresnel lens and an application - specific controller , which is compatible with 0 . 6 m 1p1m n - well cmos technology , is introduced in the paper 本文介紹了組成熱釋電紅外探測器的三大部件:熱釋電紅外傳感器、菲涅耳透鏡、專用控制芯片的結構和原理,并提出了一種0 . 6 m1p1mn - wellcmos工藝專用控制芯片的設計方案。

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,我們基于惠更斯-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,并且通過幾何光學解析無衍射光束的聚焦特性。

Such conclusion is given : shorten the fresnel shu , shorten the obscuration ’ s area percent and shorten the equivalent diffraction distances will improve the optical quality . ( 4 ) the nonlinear paraxial equation is understood to analyze the n slabs ’ hot - image rule 得出在高功率固體激光裝置中應縮小散射點的菲涅耳數和散射面積比,控制散射點的等效衍射距離,使散射點接近等效衍射距離為零,即像面的位置。

The course covers non - sequential ray tracing , sources , detectors , objects , ray splitting , scattering , ghost analysis , stray light analysis , prisms , fresnel lenses , multi - element lenses , gradient index , polarization and thin film modeling 本課程涵蓋了非連續光線的追跡、光源、探測器、物體、分光、散射、鬼像分析、雜散光分析、棱鏡、菲涅耳透鏡、多元件透鏡、梯度折射率、偏振和薄膜的建立。

The form of the psf has been deduced according to the fresnel diffraction , and it has been analyzed that the frings density of the psf depends on the axicon ' s refracting angle and the distance l between the point light source to lens l2 利用菲涅耳衍射理論，推導出相干光照明下無衍射系統的點擴散函數( psf )的形式，并分析出點擴散函數的條紋疏密與錐鏡的夾角和點光源的位置有關。

( 2 ) based on the theory of diffraction , we push over the fraunhofer and fresnel diffraction of obscuration . moreover , the distribution of complex amplitude is given , and the rule is validated by the optical propagation software researched by caep 二、根據單縫衍射理論推導散射點的夫瑯和費和菲涅耳衍射規律,分別給出了散射點的夫瑯和費和菲涅耳衍射的復振幅分布情況。

2 . according to the huygens - fresnel principle , we have derived the propagation expressions of the partially coherent beams passing through dual - focus optical systems and investigated the phenomenon of focal switches of the partially coherent 2 .從惠更斯-菲涅耳原理出發,推導了部分相干光束通過雙焦聚焦透鏡系統的傳輸公式,研究了部分相干光束聚焦的焦開關現象。

( 3 ) based on the theory of linear diffraction , the linear propagation of obscuration is analyzed through equivalent diffraction distances , fresnel parameter , and obscuration ’ s area percent by the optical propagation software 用中國工程物理研究院研發的光傳輸軟件數值模擬驗證了散射點的衍射規律。三、從散射點線性理論基礎上分析散射點的傳輸規律。

Our study shows that two models are in good agreement with the numerical results derived from the fresnel diffraction theory from - r0 to + r0 in the radial position . we discuss some potential applications of the blue - detuned fhb 從這兩種擬合的效果來看，在徑向位置- r _ 0到r _ 0的范圍內，這兩種光束模型與數值計算結果擬合的非常好。

For example , when light propagates through a small round hole , by computing the intensity of the diffracted light field , we can obtain the intensity distribution of fresnel and fraunhofer diffracted light field 以光線通過圓形孔徑傳播為例，對衍射后的光場分布進行數值計算，得到菲涅耳衍射和夫瑯和費衍射光場的強度分布。

Based on the fresnel diffraction integral , the analytical expression for the field distribution of converging spherical waves passing through an annular aperture is derived and some special cases are discussed 摘要基于菲涅耳衍射積分公式，推導出了會聚球面波通過環形光闌后場分布的解析公式，并討論了一些特殊情況。

After analyzing the experiment , the author completes designing the experiment in which the fresnel hologram is recorded with ccd . how to realize the technology with program is the focus of the research 作者針對全息圖記錄中低的ccd分辨率，合理地分析了實驗條件，完成了應用ccd直接記錄菲涅爾全息圖的實驗設計。

Encapsulating attributes and methods as a bitmap class facilitates digital processing of the bitmap . the crux of the program is fresnel transformation in which an inverse discrete fourier transformation is involved 程序中，對位圖的屬性和處理方法進行封裝，以便于實現對位圖類進行各種操作和處理。

In the calculation of the transformation , the standard algorithms for fast fourier transformation ( fft ) can be applied to enhance the efficiency of the program Fresnel變換是該程序的核心， fresnel變換中可以應用逆fourier變換，計算中可以利用快速傅立葉算法( fft )提高程序的執行效率。

We point out the main influence factor of seismic distinguish in landscape orientation is fresnel zone . we can solve this problem through the high quality wavelet equation migration 指出了對于橫向分辨率的主要影響因素為菲涅爾帶的大小，可以通過高質量的波動方程偏移解決此問題。