查询词典 Fresnel diffraction

. It is necessary to cut the sheet 5 of Fresnel lens as the semi-finished product along the four cutting lines to remove the unwanted portions from the sheet 5 as described above.

第8条第。既要削减表5菲涅耳透镜作为半成品，沿线四个切割线，以消除有害的部分，从表五如上文所述。

The focus of Fresnel zone lens is related to both the radius and the number of loops, however is independent to its phase grades.

在环带相位深度P为2p 时，菲涅耳波带透镜的焦距与其半径和环带数有关，而与相位阶数L无关。

The first one is to develop the design platform for hologram imaging. The second one is to develop the hybrid Fresnel lens. Experimental verifications are also scheduled to ensure the reliability of design platform..

另一个研发课题是发展非对称菲涅尔镜片的设计平台，可以进行最佳化与公差容忍度分析，并委外制作镜片，再加以实验验证，以确认设计平台的可信度。

In the second chapter,I calculate the diffractive efficiency when there arealignment error,depth error of the step and the work was elength error,based on the theory ofthe fresnel lens.

第二部分文章在介绍菲涅耳透镜设计原理和衍射效率计算的基础上，重点分析了存在各种加工误差时候的衍射效率的计算情况。

"Refinements in lenses (e.g., the Fresnel lens) and reflectors made it possible to substantially increase the light's intensity ."

而利用透镜和反光镜的辅助设备可使灯光强度倍增。

The object for each of these lenslets is the image of the LED that would be formed by the Fresnel lens.

采用高亮度发光二极管，用菲涅尔透镜和柱透镜阵列使光线集中在用户眼睛上，大幅度提高图像亮度，由于左右眼看到的图像不一致，产生视差，形成立体感。

Taking the nonlinear refraction and the nonlinear absorption into account simultaneously, this paper investigated the diffraction theory model of the Z-scan technique, and analyzed the features of Z-scan curves and their variation rules.

在同时考虑非线性折射和非线性吸收的情况下，借助光的衍射理论，研究了Z-扫描技术的衍射理论模型，分析了非线性折射和非线性吸收同时存在时Z-扫描曲线的形状特征和变化规律。

During the testing many kinds of advanced instrument were implied in study of the fiber's inner structure, the infrared absorption spectrum, x-ray diffraction curve, etc.

同时对纤维主要的物理机械性能与化学性能进行了系统的实验分析，以期对该纤维的形态特征、服用性能有较全面的掌握。

In this paper, the influences of acetanilide content on the microstructure and macro properties of polyvinyl chloride were studied by means of differential scanning calorimetry, wide angle X-ray diffraction and scanning electron microscope.

利用差示扫瞄量热法、广角X-射线衍射和扫瞄电镜方法研究了乙酰苯胺质量分数对聚氯乙烯的结晶度、微观形态和宏观机械性能的影响。

In this paper,acetanilide,adipic acid and potassium hydrogen phthalate were chosen as additives to advance polyvinyl chloride to crystallize. The effects of compress mold,annealing temperature and time,additive property and loading on the crystallization,microscopicmorphology and mechanical properties of PVC were studied by means of wide angle X-ray diffraction,differential scanning calorimetry,fourier transform infrared spectrophotometer,scanning electron microscopeand tensile test.

本文利用乙酰苯胺、己二酸和邻苯二甲酸氢钾作为聚氯乙烯结晶改性的添加剂，通过广角X-射线衍射法、差示扫描量热法、傅立叶转换红外光谱、扫瞄电镜和万能电子实验机研究了热压、热处理温度和时间、添加剂结构和质量分数对PVC结晶、微观形态和宏观机械性能的影响。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。