According to the general Huygens Fresnel diffraction integral formula, this thesis discusses the intensity distribution properity of the cosh-Gaussian beams passing through an astigmatic lens.
据广义Huygens -Fresnel衍射积分公式 ,推导了新型光束———双曲余弦高斯光束通过简单像散透镜后的光场分布特点 ,并通过数值计算 ,说明了像散系数对焦移、光强分布的影响。
This paper presented the basic principle of program circuit of the imaging lenses for model-EM 400 electron microscope.
文章深入浅出地介绍了EM 400电子显微镜成像透镜程序电路原理,扼要地阐述了M控制程序、地址编码器、放大倍数、相机长度/合铀、24×14矩阵等主要电路作用以及它们之间相互关系。
asymmetric anastigmat
非对称性消像散透镜
Free from astigmatism.Used of a compound lens in which the separate components compensate for the astigmatic effects of each lens.
消像散的消像散的，用于复合透镜，其中分隔部分抵消了每一个透镜的散光效果
air-spaced double anastigmat
双分离对称消像散镜头
Anastigmatic lens: Photographic lens corrected for astigmatism as well as other distortions. Process camera lenses are anastigmats.
消像差透镜:消除纵横像差和其他畸变的摄影用透镜。制版照相机所用的镜头是消像差透镜。
The Effects of Astigmatic Lens on the Focal Switch of the H-G Beams
透镜的像散对H-G光束的焦开关影响
aplanat [aplanatic] lens
消球差透镜，齐明透镜
convertible unsymmetrical anastigmat
可变换的非对称消像散镜组
compound lens or lens system designed to be free of astigmatism and able to form approximately point images.
没有散光并且能够形成近似的图像的透镜或透镜系统。
Focal Switch Phenomenon of H-C-G Beams Passing Through a System with the Aperture and Astigmatic Lens Separated;
H-C-G光束通过光阑-像散透镜的焦开关现象
Propagation Properties of Partially Coherent Light Passing Through an Aperture Astigmatic Lens;
部分相干光通过光阑像散透镜的传输特性
"Diverging lens causes the rays of a parallel beam of light to spread out and appear to come form a point, i.e. the rays perge. It produces a virtual image at its principal focus. Such a lens is thinner at the center than at the edge"
散光镜使一束平行光线散开而形似出发于一点,在其主焦点上产生虚像, 这种透镜的心比边缘薄
The Study on Stare Hyperspectral Imaging System Using Longitudinal Chromatic Aberration of Binary Optical Lens;
利用二元光学透镜轴向色散的凝视光谱成像性能研究
Focusing Properties of Non-uniformly Polarized Beams through an Astigmatic Lens with Annular Aperture
非均匀偏振光束通过环状光阑像散透镜的聚焦特性
Shaped like a biconvex lens.
双凸透镜状的形状像双凸透镜的
symmetrical (achromat)lens
对称式(消色差)透镜
aplanatic: Of or relating to optical systems that correct for spherical aberration.
等光程的,透镜消球差的: 矫正球面像差的光学系统或与之有关的
Of or relating to optical systems that correct for spherical aberration.
等光程的，透镜消球差的矫正球面像差的光学系统或与之有关的
large concave mirror produces image that is magnified by the eyepiece.
由目镜产生放大图像的大的凹透镜。