查询词典 aberration

The Focusing property of flat-topped multi-Gaussian laser beam by lens with spherical aberration is discussed.

利用广义惠更斯-菲涅耳衍射积分公式，研究了平顶多高斯光束通过球差透镜的聚焦特性。

Compound lens corrected for spherical aberration and coma.

矫正球面销售量差和慧星差的复合式透镜。

The spherical aberration of thermal lens of the active media influences the mode profile, the single-pass loss, the output power and other properties of a laser system.

激光晶体热透镜的球差效应会影响谐振腔的输出光束质量，以及腔内损耗和输出功率等特性。

Focusing of Gaussian beam by an apertured lens with spherical aberration is calculated,based on Huygens-Fresnel diffraction integral.

从Huygens-Fresnel衍射积分出发，计算高斯光束经过初级球差透镜聚焦之后的衍射光场。

On the other hand, focusing beyond conventional diffraction limit can be achieved by using a lens with negative spherical aberration.

利用负球差透镜在实际焦面上可获得最佳的聚焦能力。

Based on the Sasians aberration theory of a bilateral symmetric optical system, the image quality of a rear view mirror with a spherical surface is studied comprehensively.

根据Sasian的面对称光学系统的象差理论，全面分析了球面后视镜的成象质量。

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

设计了四片非球面组成的离轴式反射系统，然而，仅采用非球面设计系统结构不够精简，性能也有待进一步提高，且非球面面形较大时加工和检测都存在一定的困难；继而提出了用球面Fresnel反射镜代替非球面的设计方法，虽然Fresnel反射镜加工和检测更为简单，且复制成本低，但对波长具有选择性；进而，应用折反系统结合的方式设计了离轴式投影镜头，该方法因兼具折射和反射的优点，在大屏幕超薄背投系统的设计中广为应用，缺点是会产生难以校正的色差，且结构复杂。

Thes are the magnification factor, the spherical aberration and the space charge effect.

本文从分析9显象管电子枪的结构特点出发，讨论了影响荧光屏上电子束光点尺寸的三个主要因素：透镜放大率、球面象差和空间电荷效应。

Based on the eye model proposed by Hwey-Lan Liou,the impact of intraocular lens with different spherical aberration over same optical zone decentration and tilt on performance of human eye was analysised with ray-tracing method using ZEMAX software.

南开大学现代光学研究所光电信息技术教育部重点实验室，天津 300071基于Hwey-Lan Liou人眼生理模型，采用光线追迹的方法，分析了相同孔径下具有不同球差的人工晶体在眼内的倾斜和偏心对人眼视功能的影响。

Varying slight ly from sphericity and having only slight aberration,as a lens.

非球面的与球状体略微不同，只有很小偏离，如镜片

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。