象散

由此得到了电子光学广义的Fraunhofer条件（即消除各向同性和各向异性彗差的条件），证明了在此条件下，象散和场曲取极值或稳定值。

Therefore the general electron optical Fraunhofer conditions for correcting isotropic and anisotropic coma are obtained . It is shown that under this condition , astigmatism and field curvature have extreme or stationary values .

象散对多元件环形腔失调灵敏度的影响

Influence of astigmatism on misalignment sensitivity of multi-elements ring cavities

运用张量ABCD定律分析简单象散高斯光束的对称化

Analysis of Symmetrization of Simple Astigmatic Gaussian Beams by Means of Tensor ABCD Law

利用消象散三镜折叠腔，研究了LiF晶体F2和F2~+心激光特性。

The performance of F_2 and F_2 ~ + centers LiF crystal laser has been investigated by using a three-mirror optical cavity to compensate the astigmation .

研究了用象散二极管激光光束端面泵浦的TEM（0m），TEM（n0）多模Nd：YAG激光器。

The Nd : YAG laser end-pumped by astigmatic diode beam is reported , for the purpose of studying diode pumped solid-state laser array .

本文利用张量ABCD定律分析了简单象散高斯光束的对称化，也给出了对称化设计方案。

The symmetrization of simple astigmatic Gaussian beams is analyzed by means of tensor ABCD law in this paper . The design procedures of symmetrization are also given .

球面镜折迭腔中光模象散的调整与消除

The elimination and regulation of astigmatism in spherical mirror folded cavities

光象散法测量溶液浓度的研究

Research on the optical astigmatic focus technology for measuring consistence in solution

以及校正透镜和消象散器对畸变的影响。

The effect of correction lenses and stigmators on distortion .

象散法高精度离焦检测系统研究

Studies on high precise astigmatic focus error detect system

三维介质雷达罩电磁特性的复象散波分析

Analysis of electromagnetic characteristics of 3-D media radome by complex astigmatic wave theory

他只觉得身子象散了架似的。

He feels as if he is breaking apart .

内含柱面透镜的象散腔海洋表面电磁特性的复象散波分析

The analysis of electromagnetic scattering characters of ocean surface by complex astigmatic wave

复杂环形腔的象散分臂补偿

Astigmatism compensation in arm of a complex ring cavity

消象散掠入射平场光栅谱仪

Design of a Stigmatic Grazing Incidence Flat-field Grating Spectrograph

椭圆膜孔透镜电子枪中用作动态聚焦和象散控制的四极透镜

Quadrupole lens for dynamic focus and astigmatism control in an elliptical aperture lens gun

校正透镜和消象散器电磁场分布的计算；

The computation of field distributions in electrostatic and magnetic correction lenses and stigmators ;

反射式顺向聚焦整体跟踪式高温太阳能集热装置自动调焦和消象散装置

The reflection style same direction focusing high temperature solar collector with holistic tracking function

对象散全息元件产生的正交象散特性的研究

Normal astigmatic character of astigmatic holographic element

本文用矩阵光学的方法研究了内含柱面透镜的象散腔。

The astigmatic cavity with a cylindrical len is studied by using matrix optics method .

象散光学系统的象平面全息术

Image - plane holography of astigmatic system

尤其对于湍流象散像差，拓扑荷的影响十分显著。

Especially for the astigmatism , the influence of the topological charge is very prominent .

本文讨论了多元件环形腔的失调灵敏度以及象散的影响。

Misalignment sensitivity of multi-elements ring cavities and the influence of astigmatism on it are discussed .

从理论上分析了象散光学系统产生象平面全息图的可能性，并在实验上得到证实。

Possibility of producing image-plane holograms of astigmatic system is analyzed theoretically , and verified experimentally .

复象散波理论是一种分析三维介质雷达罩电磁特性的有效方法。

The complex astigmatic wave theory is used to analyse the electromagnetic characteristics of 3-D radome .

大视角无畸变两步象散彩虹全息术

Two - Step Astigmatic Rainbow Holography for the Reconstruction of Large - Viewing - Angle and Distortionless Images

进一步讨论获得既不离焦也无象散的圆场和平场装架的可能性。

Furthermore , the possibilities for yielding both non defocus and anastigmatism circular and flat field mounts are discussed .

最后还对该谱仪利用凹柱镜及凹球镜的消象散结构作了介绍，也给出了放大率为5倍和空间分辨本领达到25μm的实验结果。

The magnification is 5 , spatial resolution is 25 μ m. The experimental results are given as well .

本文提出了具有三面球面反射镜的复杂环形腔的象散分臂补偿方法。

The article develops an astigmatism compensation method in arm of a complex ring cavity within three spherical reflectors .

完全消除场曲和象散在校正透镜和消象散器上所加信号强度的计算；

The calculation of the signal strengths applied in correction lenses and stigmators which completely cancel field curvature and stigmatism ;