Paraxial propagation of titled incident Hermite-Gaussianbeam through a lenslike medium;
厄米-高斯光束倾斜入射类透镜介质的近轴传输
The propagation modes in the lenslike medium, including the spot size, field distribution pattern and their propagation constant,are obtained by solving the Helmholtz equation in the cylindrical coordinate.
从求解柱坐标内亥姆霍兹方程出发，导出了类透镜介质传导模的特征参量、场分布状态及传播常数，求出了入射激光束和导模之间的耦合系数，并讨论了它们的物理意义。
As a result , the oscillation performance of the laser will be changed and the aberration of the lens-like medium will occur.
高能激光器谐振腔中，介质折射率随温度、压力、能量等物理量沿径向变化而呈类透镜分布，由此引起激光振荡特性的改变，产生动态的类透镜介质像差，根据光波的矩阵传输理论，以正支共焦望远型非稳腔为例，用几何方法对激光谐振腔内的类透镜介质效应及其像差校正进行了理论分析，计算结果显示，所给方法能有效消除该像差。
The effective index of refraction of high energy electron beam in three dimensional free-electron laser is derived and that radiation field in planar wave profile is induced by effective refraction index of the electron beam which is lens-like medium.
推导出适用于三维自由电子激光器中的电子束的等效折射率，说明高斯平面波激光场是电子束等效折射率按平方律分布即类透镜介质的结果。
Using the similarity between the time and space and adopting the ray trace method, the analytical solutions to the equation of the propagation of chirped pulses inside the temporal lenslike media have been deduced.
利用空间－时间类似和光线光学方法得到啁啾高斯光脉冲在类时间透镜介质中传播的解析解，讨论了光脉冲宽度和啁啾参数随传播距离的演变，并与光脉冲在克尔介质中传播的特征作了比较。
The paper presents a W-band FMCW dielectric lens antenna with simple structure and stable reliability so as to meet high requirement for transceiver isolating degree.
介绍一种W波段调频连续波(FMCW)体制的介质透镜天线,其结构形式简单,性能稳定可靠,解决了调频连续波的较高收发隔离度的要求,天线的收发隔离度可达58dB以上。
Using dielectric lens to realize compact field was proved to be right and feasible through study of thickness of lens and optical length error.
利用几何光学法对射频仿真系统中使用介质透镜实现暗室紧缩场进行了建模研究,详细介绍了透镜照亮面的设计方法,分析了透镜中心厚度与光程差之间的关系,通过对某透镜照亮面进行建模,说明了利用介质透镜实现射频仿真暗室紧缩场的可能性。
Dielectric lens with a number of sectors with difference thickness are located on aperture plane of conical horn.
提出了一种改善TM01模辐射特性的方法,即将具有不同厚度扇区的介质透镜放置于圆锥喇叭口径处,给出了该天线辐射场的解析公式,并结合完全匹配层(PML)吸收边界的时域有限差分法(FDTD)分析了天线的辐射场、反射系数及场分布。
Gaussian Temporal and Spatial Pulse Dispersion in a Lens-Like Medium
类透镜媒质中高斯时间和空间脉冲的色散
Study on Near-Field Target Detection and Imaging by Using Flat Left Handed Metamaterial Lens;
基于左手化媒质（LHM）平板透镜的近场目标扫描探测与成像技术研究
Use Maintop to Create a Multimedia Courseware of Lens Form Image;
用Maintop编制透镜成像多媒体课件
Study of the Optical Characteristics and the Fabrication Technology of Refractive Microlens and Microlens Arrays;
折射型微透镜及微透镜阵列光学性质与制作技术的研究
The One-Lens and Two-Lens Fractional Fourier Transform System with the Media
含介质的单透镜和双透镜分数傅里叶变换光学系统
Optimizing Image Quality of HOE with OTF as Guide.
用传递函数引导全息透镜的象质优化
a concave lens [mirror]
凹透镜 [凹面镜]
The lens telescope, or refractor, was vastly improved when it became possible to manufacture high-quality lenses made from flint glass.
透镜望远镜，或称折射望远镜，在人们能够制造出高质量的火石玻璃透镜以后得到了很大的改进。
meniscus (shaped) lens
凹凸透镜，弯月形透镜
aplanat [aplanatic] lens
消球差透镜，齐明透镜
Some are flared-that is, thicker at the rim than in the center, like a concave lens.
有些呈喇叭形──即边缘较中心厚，类似凹透镜。
air-spaced doublet
双不胶透镜; 双分离透镜; 双分透镜; 空气隙双合透镜; 分离式双透镜
Exploration of Multimedia Teaching Design on Foundation Physics "Science Inquisition" --Convex Imaging Rule in Multimedia Teaching Design;
基础物理“科学探究”多媒体教学设计探索——凸透镜成像规律多媒体教学设计
A research on the characteristic of the refraction-reflection system composed of rotational conicoid thin lens and flat mirrors
旋转二次曲面薄透镜与平面镜组成的折反光学系统的性质研究
caused by opaque cell fragments in the vitreous humor and lens.
眼里玻璃质物体和镜片的不透明细胞碎片。
Beam quality characterization of super-Gaussian beams passing through a spherically aberrated lens with an annular rectangular aperture
超高斯光束经光阑球差透镜后的光束质量评价
OBSERVATION OF CHANGES WITH AGE IN RENAL INTERSTITIAL CELLS OF RATS BY TRANSMISSION ELECTRON MICROSCOPE
大鼠肾脏间质细胞增龄性变化的透射电镜观察
Effect of GRIN lens on imaging quality of SDOCT system
GRIN透镜对SDOCT系统中成像质量的影响分析