A mathematical model based on fourier optics is developed to analyze the digital recording mechanism and properties of the in - line phase - shifting digital holographic system in comparison with those of the commonly used off - axis arrangement . theoretical analysis demonstrate that in - line configuration is advantageous in enhancing the system performance 第三章将同轴相移数字全息记录与再现过程等效成一个相干光学成像过程，基于傅里叶光学理论对其成像特性进行系统的理论分析。
Asm 1 . 0 contains the entire ccos process , including best - fit sphere calculating , profiler test and anslysis , virtual grinding and polishing , cnc grinding and polishing , etc . as results , the manufacturing process of a f / 1 . 17 , 770mm x 200mm rectangular even high order off - axis aspheric mirror is presented as an example in detail 最后，比较详细地介绍了770mm 200mm ， f 1 . 17高次离轴非球面反射镜的加工、检验过程，加工后200mm口径范围内加工精度达到0 . 013 rms ，完全满足了设计要求。
The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell . then the predigested model , i . e . , bended beam , used in qualitative analysis was proposed , and its deflection and stress formulas under the freely supported condition were set up . based on an off - axis aspherical primary mirror , the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r , position s of concentrated load p and geometry length l of arc was analyzed 根据这一设想,本文建立了超薄镜的数学模型?薄壳,并提出了强制力作用下超薄镜的简化模型?曲梁,推导了曲梁在简支情况下受力变形的挠度公式,并结合一个实例,计算出曲梁变形后与所需非球面的面形残差( rms )在子午方向与曲梁弧长l 、曲梁半径r及集中力位置s的关系及满足面形精度的r和s范围,分析了弧矢方向的rms ,得出了同时满足子午和弧矢方向面形要求的l 、 r和p 。
For the coordination of the contradictory , the wavefront technique has been regarded as an effective method to improve the image quality in photolithography by optimizing the image of the mask . it includes : pupil filtering , phase shift mask , off - axis illumination , optical proximity correction , and so on 为了协调这种矛盾，利用波前工程来改善光刻图形的质量以提高光刻分辨率，已广泛地应用于光学光刻中，如：瞳孔滤波、相移掩模、离轴照明、光学邻近效应校正等。
The schwarzschild objective with eccentric aperture and off - axis illumination is designed on the basic of common - axis illuminated structure . a detailed theoretical analysis of the alignment is taken . the mathematical model is established and the relation between aberration and construction is described 对计算机辅助计算的精密装调技术进行了详细的理论分析，建立了数学模型，阐明了像差与各个结构参数的相关性，分析影响各种像差的主要因素，制定了装调方案。
This is the first generation holograph . aided by an abundance ot the new coherent laser light and extended by a number of technological advances , leith and upatnieks produced the off - axis hologram recorded and reconstructed by laser in 1962 . the twin images can be separated in this hologram 随着高相干度激光的出现， 1962年leith和upatnieks将通讯理论中的载频概念推广到空域中提出激光记录、激光再现的离轴全息图，分离了孪生像，使全息术进入了第二代全息图的发展时期。
The relation between area of ccd saturation and 0 . 632 m 、 1 . 06 m laser power / energy was measured . the ccd camera was disturbed by strong radiation from laser outside the field of view in experiment . the relation between the area of ccd saturation and off - axis angle was measured 通过实验，得到激光干扰ka - 320型面阵ccd光电探测器的像元饱和阈值、探测器靶面饱和阈值、局域损伤阈值，并得到了0 . 632 m与1 . 06 m波段入射激光功率与ccd靶面饱和程度的对应关系曲线，了解了面阵ccd探测器受激光干扰的各个阶段。
The emulational software can gave objective off - axis quantity in field of view , and objective spacial position after dealing with theorical flight track and actual operation parameter of theodolite , and compose a emulational image , which is displayed on telescope by lcd to feed back observational effect for operator and on computer screen to monitor by trainer 仿真软件通过对理论飞行轨迹与经纬仪实际运动参数的运算处理，得出目标在视场中的偏轴量及目标当前所在的空间位置，并合成一幅仿真图像，通过液晶显示板显示于观瞄望远镜中，向操作手反馈观瞄效果。同时显示于计算机屏幕中，供教练员监控。
Abstract : with the use of the theory of blazed phase gratings , the color separation phase grating used for icf drivers is designed , which can off - axis separate the fundamental , 2nd and 3rd harmonic waves . theoretically , its diffraction efficiency for 0 " th order at the 3rd harmonic wave is 100 % . experimentally , a color separation grating is made . both its separation angles ( at the 1st and 2nd harmonic waves ) and its diffraction efficiencies for 0 " th order are measured , and some significant results are presented 文摘:采用相位闪耀光栅原理设计出用于icf驱动器中能离轴分离基频、二倍频、三倍频激光的色分离相位光栅，理论上三倍频零级衍射效率达到100 ，同时，对该相位光栅进行了实际制作和实验测量，测出了基频光和二倍频光的分离角以及光栅的零级衍射效率，得到了一些有意义的结果。
