Fresnel lens on the top.

塔顶的菲涅尔透镜。

A method of making the Fresnel lens is described.

本文还描述了制造菲涅耳透镜的方法。

The final testing results of the Fresnel optical lens are given.

给出了研制成功大型菲涅耳透镜的光学检测结果。

In 1818 Fresnel entered a competition sponsored by French academy.

1818年菲涅耳参加了法国科学院主办的一次竞赛。

Fresnel lens on the top. Thickness and quality of the glass are impressive.

塔顶的菲涅尔透镜。透镜的厚度和质量令人印象深刻。

The projection of the interface Fresnel zone is up to the acquisition line.

映射菲涅尔带是反射面上菲涅尔带在侧线上的投影。

The design method of a photoinduced plasma Fresnel zone plate antenna is described.

本文描述一种光生等离子体菲涅尔波带板天线的设计方法。

The difficulty was resolved by Fresnel with his addition of the concept of interference.

菲涅耳通过加进来干涉概念，解决了这个困难。

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

用这一方法设计的菲涅耳透镜，齿宽较大，齿距不等。

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的计算菲涅耳积分的方法。

Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.

使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。

But Dr Koechlin does not worry about that, because his Fresnel telescope will be in space.

然而，凯什兰博士并不为此担心，因为他的菲涅尔望远镜将会在太空中。

The diameter of a thin wire was obtained by measuring the shadow in the Fresnel diffraction zone.

通过细丝后在其后菲涅耳衍射区留下阴影，测量阴影宽度可得细丝直径；

Diffractive efficiency of Fresnel lens is important factor to evaluate the quality of Fresnel lens.

菲涅耳透镜的衍射效率是评价菲涅耳透镜质量的一个重要指标。

The digital watermark technique is proposed based on Fresnel hologram and Discrete Cosine Transform.

提出了一种基于数字菲涅耳全息和离散余弦变换的数字水印技术。

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

模拟计算结果对多阶菲涅耳透镜的制作提供重要的理论指导。

The Fresnel zone plate scanning holography is applied in the imaging through highly scattering media.

将菲涅耳波带板扫描全息术用于高散射介质成像技术中。

The first Fresnel zone radius can be treated as lateral resolving power of seismic data approximately.

可以将第一菲涅尔带半径作为地震资料横向分辨力的一种近似。

We simulated the light exposure distribution of the mask and structure of the Fresnel lens in computer.

用计算机模拟了制作菲涅耳透镜时灰度掩模的曝光量分布和菲涅耳透镜的面形结构。

The third chapter discussed how to perform a fresnel lens with the principle of fresnel zone diffraction.

第三章阐述了菲涅耳波带透镜的基本原理和标量衍射理论；

His main lights were Arri tungstens, without the Fresnel lenses that cinematographers often use as broad spots.

拍摄时的主光是Arri钨丝灯，摄影师没有使用电影摄影师经常使用的菲涅耳镜头。

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

本文介绍用制版的方法制作的微菲涅耳透镜列阵及其成像实验。

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

模拟计算结果对正在进行的16台阶菲涅耳透镜制作工作提供了理论指导。

The Fresnel diffraction formula and the Fourier transforms are used to get the intensity distribution formula.

采用菲涅耳衍射公式和傅里叶变换得出了输出面上的光场的理想计算公式。

Concept art showcased "Fresnel" type designs, with layered crystalline filaments suggesting old-style electronics.

概念画展示出种种“菲涅耳”式的设计，层层叠叠的水晶丝令人联想到旧式的电子产品。

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的光学设计和光学效率。

The relative intensity of Fresnel single-silt diffraction can be expressed approximately by means of two simpler integrals.

通过计算两个简单的积分值，可近似表示菲涅耳单缝衍射的相对光强。

At last the light intensity distribution of Fresnel diffraction at several rectangular apertures is calculated and analyzed.

最后计算分析了多矩孔菲涅尔衍射的光强分布。

The diffraction of Gaussian beams at an square aperture is studied based on the Kirchhoff and Fresnel diffraction integrals.

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 new image encryption algorithm was proposed based on multiple Fresnel diffraction transforms and phase encryption masks.

基于多重菲涅耳衍射变换和相位密码板，设计了一种新的图像加密计算方法。