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zernike像差
相关语句
  zernike aberration
     The experimental principle of laser beam traversing a supersonic flow was given. Wavefront aberration under different flow conditions was obtained by adopting Zernike mode-construction theory. The PV and RMS curve, Zernike aberration coefficient, Strehl ratio and circle energy were presented.
     给出了H-S方法测量穿过超声速流场激光波面的原理,采用模式法进行了波前重构,计算了在几种流场条件下的激光波面像差特性PV值,RMS值和Zernike像差系数、Strehl比和环围能量曲线等。
短句来源
     Methods Using the FISBA interferometer to measure 7 IOL which commom using in clinic. And analyse the 36 Zernike aberration coefficient.
     方法采用FISBA干涉系统对7种临床常用的人工晶状体进行测量,并对36项Zernike像差系数进行差异分析。
短句来源
     Results The 36 Zernike aberration coefficient up to 7-th order were gained. According to analysing the aberration coefficient,we can summarize that the level coma and vertical coma were the most significant terms,and astigmatism and defocus secondly.
     结果根据测得的人工晶状体的7阶36项Zernike像差系数,得出临床常用的人工晶状体水平彗差(C8)和垂直彗差(C7)特别显著,其次为C3(散光)、C4(散光)和C5(离焦)。
短句来源
  “zernike像差”译为未确定词的双语例句
     Selection of function family and algorithm to fit optical interference wave surface, system aberration and methods to classify the type of surface shape in analysis of plane error with Zernike polynomials are researched in depth. A new theory and method is put out with an error theory to appraise precision of the system objectively to inspect surfaces of the optical plane glass with laser quantizing technique. 
     全面论述了激光数字平面检测系统中的核心技术———干涉波面数字化分析理论和处理方法,对光学干涉波面的拟合函数系的选择、拟合算法以及系统像差和被测表面平面误差类型判定方法进行了深入研究,提出了在"Zernike像差空间"确定激光数字平面检测系统精度的理论和方法.
短句来源
     Experimental results show that the establishing process, the stablizing process and the ending process of the supersonic flow can be measured and analyzed with H-S wavefront sensor.
     结果表明,H-S法可以很好地反映流场建立、稳定和结束过程中Zernike像差的变化。
短句来源
  相似匹配句对
     Measurment of the Zernike coefficient of intraocular lenses
     人工晶状体像差Zernike系数的测定
短句来源
     Relationship between second-order Zernike coefficients and conventional spectacles and aberration correction
     第二阶Zernike多项式与屈光不正的关系及其像差的矫正
短句来源
     The simplified analysis of the aberration of the transmission Electron Microscope
     透射电子显微镜像差的简化分析
短句来源
     The Objective and Analytical Aberration
     电子束物镜及像差分析
短句来源
     Fast algorithm for computation of Zernike moments
     Zernike矩的快速算法
短句来源
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Selection of function family and algorithm to fit optical interference wave surface, system aberration and methods to classify the type of surface shape in analysis of plane error with Zernike polynomials are researched in depth. A new theory and method is put out with an error theory to appraise precision of the system objectively to inspect surfaces of the optical plane glass with laser quantizing technique.

 全面论述了激光数字平面检测系统中的核心技术———干涉波面数字化分析理论和处理方法,对光学干涉波面的拟合函数系的选择、拟合算法以及系统像差和被测表面平面误差类型判定方法进行了深入研究,提出了在"Zernike像差空间"确定激光数字平面检测系统精度的理论和方法.

The wavefront distribution and the dynamic wavefront change of laser beam traversing a supersonic flow could be measured with Hartmann-Shack wavefront sensor. The centroid shift and the far-field distribution of laser beam could be obtained by further analyzing and calculating the experimental data. The experimental principle of laser beam traversing a supersonic flow was given. Wavefront aberration under different flow conditions was obtained by adopting Zernike mode-construction theory. The PV and RMS curve,...

The wavefront distribution and the dynamic wavefront change of laser beam traversing a supersonic flow could be measured with Hartmann-Shack wavefront sensor. The centroid shift and the far-field distribution of laser beam could be obtained by further analyzing and calculating the experimental data. The experimental principle of laser beam traversing a supersonic flow was given. Wavefront aberration under different flow conditions was obtained by adopting Zernike mode-construction theory. The PV and RMS curve, Zernike aberration coefficient, Strehl ratio and circle energy were presented. Experimental results show that the establishing process, the stablizing process and the ending process of the supersonic flow can be measured and analyzed with H-S wavefront sensor. Comparing the data of no flow with that of a given supersonic flow, it is the defocus and astigmatism aberration that increase obviously with the supersonic flow. And beam quality without test-model is better than with test-model.

用Hartmann-Shack(H-S)波前传感器可以准确测量穿过超声速流场的激光波面及其变化过程,进一步计算可以获得光束质心漂移、远场分布等数据。给出了H-S方法测量穿过超声速流场激光波面的原理,采用模式法进行了波前重构,计算了在几种流场条件下的激光波面像差特性PV值,RMS值和Zernike像差系数、Strehl比和环围能量曲线等。结果表明,H-S法可以很好地反映流场建立、稳定和结束过程中Zernike像差的变化。比较无流场和给定参数的超声速流场,激光穿越后产生的最明显的像差变化为离焦和低阶像散的增大。在相同流场参数下,无模型时光束质量好于有模型时光束质量。

The result of influence on outcoupled mode by introducing intracavity mirror tilt-perturbation in positive-branch confocal resonator is analyzed.The intracavity mode distribution and its Zernike-aberration coefficient due to the concave or convex mirror tilt disadjustment are calculated by adopting equivalent lens method.At the same time,the experimental study about the relations of intracavity mirror tilt disadjustment and mode aberration has been performed by using Hartmann-Shack(H-S) wavefront sensor method.Aberrations...

The result of influence on outcoupled mode by introducing intracavity mirror tilt-perturbation in positive-branch confocal resonator is analyzed.The intracavity mode distribution and its Zernike-aberration coefficient due to the concave or convex mirror tilt disadjustment are calculated by adopting equivalent lens method.At the same time,the experimental study about the relations of intracavity mirror tilt disadjustment and mode aberration has been performed by using Hartmann-Shack(H-S) wavefront sensor method.Aberrations of outcoupled beam mode are obtained by using mode-reconstitution method.The results show that the intracavity perturbation of concave mirror has a greater effect on outcoupled beam-quality compared with that of convex mirror.For the large Fresnel-number resonator,the tilt angle of intracavity mirror has a close linear relationship with extracavity Zernike tilt aberration coefficient.The ratio of Zernike tilt coefficient approaches to the magnification of unstable resonator if equivalent perturbation is applied to concave mirror and convex mirror respectively.Furthermore,astigmatism and defocus aberration are also increased with the augment of tilt aberration of beam mode.So intracavity phase-corrected elements used in unstable resonator should be close to the concave mirror.The wavefront relationship between the He-Ne laser and the actual laser beam has also been compared.

针对激光器出光过程中腔内像差扰动带来的光束质量下降问题,分析了正支共焦腔腔镜倾斜扰动对调腔光模式的影响,采用等效透镜波导法计算了凹、凸腔镜倾斜失调状态下的调腔光模式分布、泽尼克(Zernike)像差系数。同时采用哈特曼-夏克(Hartmann-Shack)波前传感器方法对此进行了实验定量研究,用模式法进行了波前重构。得到了扰动量与泽尼克像差的定量关系。结果表明,凹镜倾斜扰动对腔模的影响大于凸镜,对于大菲涅耳数非稳腔,腔内倾斜扰动量与腔外泽尼克倾斜系数具有良好的线性关系,若对凹、凸腔镜分别施加等量倾斜扰动,带来的腔外泽尼克倾斜系数比率约为光腔放大倍率。且腔模倾斜像差增加的同时还将导致离焦、像散等高阶像差的增大,因此作腔内相位补偿或校正时,应使补偿或校正平面尽可能靠近凹面镜;最后对实际激光束与He-Ne调腔光束的异同作了简要比较。

 
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