• Taking 4 step and 8 step and 16 step Fresnel lens for example, the effect of alignment error on diffractive efficiency is analyzed systematically and simulated by computer.

    并以4台阶8台阶、16台阶菲涅耳透镜系统分析对准误差衍射效率影响进行计算机模拟研究

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  • The formula of numerical computing is presented with discretion for Fresnel diffraction and phase numerical reconstruction of wave front.

    涅耳衍射相位重构入手,连续信号进行离散处理,给出了数值计算公式

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  • The results of computer simulation can provide theoretical basis for the fabrication of Fresnel lens.

    模拟计算结果多阶菲涅耳透镜制作提供重要理论指导。

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  • In this model, the noise field in sound shadow region is deduced by applying Huygens-Fresnel principle. It provides a new ideal for deducing the diffraction sound of complicated…

    模型区的声场分布采用更斯-菲涅耳原理进行推导计算,给出的理论计算公式推导计算其它复杂声源的衍射提供借鉴。

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  • Intensity space distribution near image point of optical system is derived based on the accurate amplitude (therefore the intensity) analytic expression for Fresnel diffraction.

    根据准确菲涅耳衍射振幅和光解析表达式推导出光学系统附近光强空间分布

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  • When diffraction problems are solved by the angular spectrum theory, high speed and high accuracy can be obtained, especially for near-field Fresnel diffraction.

    理论处理衍射光场,不仅速度,而且处理菲涅耳衍射光场准确度其它方法无法比拟的。

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  • A method, which is based on the theories of color synthesizing and Fresnel diffraction, is proposed for computer generating hologram and numerical reconstructing color object.

    提出了基于色彩合成以及菲涅尔衍射原理计算机产生全息图并用数字方法再现彩色全息图的方法。

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  • A method of photo-mask lithography for fabrication of micro Fresnel lenses Arraywas presented in this paper.

    本文介绍用制版方法制作菲涅耳透镜列阵及其成像实验

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  • The amplitude and intensity analytic expressions for disk (sphere) and annular aperture Fresnel diffraction are given on the base of scalar diffraction theory.

    标量衍射理论基础给出屏()圆环菲涅耳衍射的振幅光强解析表达式

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  • The optical design and optical efficiency of line focus cylindrical Fresnel lens for solar concentrator are discussed.

    研究了柱面线聚焦菲涅耳太阳聚光透镜光学设计光学效率

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  • The results of computer simulation can provide theoretical basis for the fabrication of 16-step Fresnel lens.

    模拟计算结果正在进行16台阶涅耳透镜制作工作提供了理论指导。

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  • In this paper we give a fast and accurate method for the integration of Fresnel Integral.

    本文给出一种快速高精度计算菲涅耳积分方法

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  • Based on the generalized Huygens-Fresnel diffraction integral, the analytic propagation expressions for Lorentz beams passing through first-order axisymmetric optical system are derived.

    广义惠更斯-菲耳衍射积分出发,导出了伦兹光束通过一阶轴对称光学系统传输变换解析公式

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  • Because of the real data does not obtain from normal incidence, hence, the radius formula of Fresnel zone for non-zero incidence angle was derived.

    根据实际资料都不见垂直入射这一事实,推导了非入射角条件下非涅尔半径公式

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  • The new method for designing Fresnel lens has a wide serration breadth and unequal pitch.

    方法设计菲涅耳透镜,齿较大,齿距不等

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  • The experimental results are given of the two kinds of compensation plates consiting of hologram plate and photoconductive thermoplastic plate for improving image quality of the Fresnel optical lens.

    给出了“全息“光导热”制备补偿”对菲涅耳透镜进行改善实验结果

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  • In this paper, a new design approach of Fresnel lens for concentrating solar cell is reported.

    本文讨论了用于聚光太阳电池菲涅耳透镜一种设计方法

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  • Mathematical representations for three kinds of reconstruction algorithms (Fresnel integral, convolution and Fourier transform) of digital hologram are deduced based on the diffraction theory.

    衍射理论基础详细推导了再现算法(菲涅耳积分变换法、卷积法傅立叶变换法)数学表示

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  • A volume phase and off-axis holographic Fresnel lenses was developed for matching the corresponding solar cells with different band gaps. The conversion efficiency of energy increased by two times.

    激光制作了体积位相全息菲涅耳透镜,并把它们和相应的具有不同能带太阳电池匹配能量转换效率提高了

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  • The method is valid when Fresnel approximation isn't satisfied, can be further applied for reconstruction of digital holograms with variable...

    即使在菲涅耳近似满足情况下,方法依然有效进一步用于数字全息的多平面多角度的重建

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  • The inverse calculation for the phase of optical wave field of Fresnel diffraction is a significant but difficult work.

    衍射相位逆运算意义并且困难的工作。

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  • Basing on the light diffracting theory of Kirchhoff, we obtain the expression for the intensity of speckles in deep Fresnel diffraction region.

    本文利用基尔霍夫近似理论,对涅耳深区相干散和部分相干散进行了理论研究和计算模拟。

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  • The intensity distributing and the contributing range for using the serrated aperture are analyzed based on Fresnel diffraction theory.

    应用涅耳衍射光分布理论以及光上光强分布理论对波纹光阑一定条件下的作用范围进行了分析。

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  • The (first) Fresnel zone plays an important role in imaging, it is also used to define the local minimum aperture for the CRS stack.

    第一菲涅尔成像起到很重要作用限定CRS叠加的最小时窗。

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  • We review our recently proposed single-channel optical system for generating digital Fresnel holograms of 3D real-existing objects illuminated by incoherent light.

    回顾我们新近提出通道菲涅耳数字全息光学系统,该系统能获得非相干照射的物体的全息图。

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  • We review our recently proposed single-channel optical system for generating digital Fresnel holograms of 3D real-existing objects illuminated by incoherent light.

    回顾我们新近提出通道菲涅耳数字全息光学系统,该系统能获得非相干照射的物体的全息图。

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