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透镜     
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  lens
     The Study of Refractive Changes of Guinea Pig by Lens Induction and Roles of MMP-2, TIMP-2 and Cytokines in Scleral Remolding
     透镜诱导豚鼠眼屈光状态的改变及豚鼠近视眼巩膜中MMP-2、TIMP-2和生长因子变化的研究
短句来源
     Study on the Frontier Techniques of Kerr Lens Mode Locked Ti: Sapphire Laser
     克尔透镜锁模飞秒钛宝石激光器前沿技术的研究
短句来源
     A MAGNETIC LENS β SPECTROMETER AND SELECTION FOR ITS OPTIMUM OPERATION CONDITION
     磁透镜β谱仪及其最佳工作条件的选取
短句来源
     THE DIFFRACTION-BASED MERITE FUNCTION FOR AUTOMATIC LENS DESIGN
     透镜自动设计的衍射基价值函数
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     The Design of Fresnel Lens and Its Application in the Enlargement-Duplicator
     菲涅耳透镜设计及其在放大复印机中的应用
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  lenses
     and the optimal sphere temperature,the refractive index and the spectral transmissive index of the ball lenses which the diameter is 0.8mm are 1250℃、1.5190 and more than 90%.
     得到直径为0.8mm的球透镜最佳成球温度为1250℃、折射率为1.5190光谱透过率大于90%。
短句来源
     Correcting method to weak vision from irregular astigmatism with m=3,4,5 high order Fourier lenses
     用m=3,4,5的高阶傅里叶透镜校正不规则散光引起的弱视
短句来源
     Wavefront aberration analysis of diffractive lenses
     二元光学衍射透镜波象差分析
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     A Program for Finding the Initial Solution of the Group of Lenses With Given Values of C_1,p~∞ and W~∞
     求满足C_1,P~∞和 W~∞透镜组的初始解程序
短句来源
     Analysis of Rotman Lenses and Application Study of Boundary Element Method
     Rotman透镜仿真分析与边界元法应用研究
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  convex lens
     Planoconvex lens and meniscus lens change the divergent angle of 30° into 7.12° and 12.96°,enhance the illumination in the distance of 1 meter 18.92 times and 5.68 times,extend the transmission distance to 4.4 m and 2.4 m respectively.
     平凸和弯月透镜,分别使得30°的发射角变为7.12°、12.96°,1m处的照度分别提高了18.92,5.68倍,链路的传输距离分别扩展为4.4,2.4m。
短句来源
     Analysis and Discussion on Obtaining Small Focal Spot by Use of Convex Lens for YAG Laser Transmitted through Multimode Fiber
     用单透镜会聚多模光纤出射的YAG激光为较小光斑的分析讨论
短句来源
     In proposed method, the Cerenkov radiation pass through a 1-meter focal-length thin convex lens, and a CCD camera is used to capture two images of Cerenkov radiation at the focal plane and at the image plane of the lens respectively.
     文中提出了一种新的“双成像法”测量方法 ,使切伦科夫辐射光通过一长焦距的消色差薄透镜 ,分别在焦平面和像平面获取图像 .
短句来源
     Conjugate method is an accurate,simple and convenient method to measure the focal distance of thin convex lens.
     共轭法是一种较为准确和简便的测量薄透镜焦距的方法。
短句来源
     This paper describes the measuring of focal length of a convex lens using Moire fringes in identical direction at a distance of 2f' from the lens, which is formed by interference fringe and a Ronchi grating.
     本文利用干涉条纹和Rochi光栅形成的莫尔条纹在离透镜2倍焦距方向不变的原理测量凸透镜焦距。
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  a lens
     Using a lens array to make the laser energy distribution uniform,the diameter of focus spot φ 400mm, I a ≈0.55×10 14 W/cm 2,CH plane targets, m· =2×10 5g/cm 2·s from the crystal specrometers, m· =1.35×10 5g/cm 2·s from X ray streak camera, p =1.6×10 12 Pa.
     采用基频光大能量注入,大焦斑(400μm),光束经列阵透镜均匀化后,烧蚀碳氢平面靶,Ia≈0.55×1014W/cm2,晶体谱仪获得的结果是m=2×105g/cm2s,X射线条纹相机获得的结果是m=1.35×105g/cm2s,p=1.6×1012Pa。
短句来源
     Measurements show that the lens has no spherical aberration across the total effective aperture of 8 mm, and for a 4 mm-width beam and a lens with 20 mm focal length, the width of the focus is about 4 μm.
     实验测试结果表明 ,短程透镜在通光孔径 8mm内消球差 ,对 4mm宽的平面波束 ,焦距 2 0mm的短程透镜 ,其焦点束斑宽度小于 4 μm。
短句来源
     Then combining every thin bundle at same position with a lens,a high uniformity of the output beam within a section of 13 mm×13 mm is obtained,whose intensity variation is under ±5.00%.
     随后利用收集透镜将每束光叠加在同一位置,得到了在13 mm×13 mm范围内能量均匀度误差小于±5.00的光强分布。
短句来源
     Under the condition of given pump laser energy, using a lens with short focal length to focus the Cr∶LiSAF electrooptical Q- switched  laser pulses into CS 2 SBS-cell, the backward SBS scattering of broad-band and multi-transverse-mode Cr∶LiSAF laser pulses is realized, and the effective pulse width′s compression is observed.
     在抽运能量一定的条件下 ,采用强聚焦短焦距透镜提高焦点处的光功率密度 ,将Cr∶LiSAF电光调Q激光器的输出脉冲聚焦于装有CS2 介质的受激布里渊散射 (SBS)池中 ,实现了宽线宽、多横模Cr∶LiSAF激光脉冲的后向SBS ,并观察到对激光脉宽的有效压缩。
短句来源
     Application of Lau Effect to the Measurement of the Focal Length of a Lens—An Analysis Based on Geometrical Optics
     Lau效应在测量透镜焦距中的应用——基于几何光学的分析
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  lens
The system consists of a commercial CCD camera, narrow-band composite filter lens, an image capturing card, an industrial computer, a welding control unit, a GMAW power source, and a worktable.
      
We studied tissue-specific expression of homeobox genes Pax6, Prox1, and Six3 during regeneration of the retina and lens.
      
High hybridization signal of all studied genes was revealed in actively proliferating epithelial cells of the native and regenerating lens, while the corneal epithelium demonstrated a lower signal.
      
After 22.0 weeks of development, Pax6 expression increased in the retina and lens but decreased in the cornea.
      
Prox1 expression was apparent in the cornea, lens, retina, and eye membranes after 9.5 weeks.
      
更多          
  lenses
The ferricyanide reduction rate did not correlate with GSH content in the contralateral lenses of the same mouse in the absence of MB or saponin.
      
Isolated bovine lenses were sectioned into 11-12 morphological layers (from anterior cortex through nucleus to posterior cortex).
      
Fresh water lenses formed by seepage from irrigation channels
      
Theoretical Aspects of the Ion Exchange in the Fabrication of Focusing Gradient-Index Lenses
      
The results of the combined analysis of a series of film thickness measurements for films with various refractive indices n allowed us to estimate aeff parameters for several lenses.
      
更多          
  convex lens
The cases of focusing and divergence of rays passing through a convex lens are investigated.
      
The upper crust wherein the Tangshan main shock and most of the aftershocks occurred is a convex lens-like body which is cut by faults at the east, south and west sides.
      
As the influence of focusing aberrations is much smaller than that of a convex lens, the generation of a Bessel beam using an axicon is very practical.
      
The taper of the hole drilled with the Bessel beam is smaller than that with the focused beam from the convex lens.
      
As a result, we report a new mechanically robust and miniaturized mixing module employing a hybrid fiber with a plano-convex lens, reducing the size of previous DFG configurations by 65%.
      
更多          
  a lens
The measurement of HMS activity is based on continuous monitoring of the potential of the ferricyanide-ferrocyanide system (where ferricyanide is an artificial electron acceptor) in the presence of a lens.
      
We propose a form of a lens corrector at the prime focus of a hyperboloidal mirror that provides a flat field of view up to 3° in diameter at image quality D80>amp;lt;0.8 arcsec in integrated (0.32-1.1 μm) light.
      
Since such a lens can have a relatively large length comparable to the focal length, the thin-lens approximation is inapplicable.
      
We calculate the image propagator that describes the focusing of a parallel beam and the image transfer (the focusing of a microobject), as well as the Fourier transform of the transmission function for a microobject with a lens, is calculated.
      
For the Gaussian model of a lens, a Green-function-based method is proposed to compute the intensity distribution in the lens image plane.
      
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