查询词典 achromatic aberration

We notice that in the stretcher,when the light incidence on the concave mirror,it will bring the spheral aberration and the spheral aberration will arouse the negative dispersion.

我们注意到在展宽器中，光入射到凹面镜会带来球差，这个球差会带来负二阶色散。

To improve the quality of the image, the defocusing error was used to balance the piston error, spherical aberration and astigmatism, and the results were significantly improved, especially the wave surface variance caused by spherical aberration was decreased by 90%.

运用离焦误差对piston误差、球差和像散进行像差平衡，其效？灾乇鹗乔虿钜鸬牟娣讲钕陆？0％。系统各项像差系数随子孔径数的增加而降低；当子孔径数大于6时，各像差系数变化缓慢。

In chapter 3, characteristic paraments, focusing structure were discussed, the processing of double cell for phase conjugation was analyzed. Designing criteria of double cell phase conjugation mirror was given out. All phase aberrations could be compensated by using phase conjugation theoretically, but compensation is only effective to phase aberration of uniform polarizing state, it is not effective to aberration by thermally induced depolarization an diffractive effecting by aperture.

在第三章，我们讨论了SBS介质的特性参数，相位共轭镜的聚焦结构，分析了双池相位共轭镜的相互作用过程，给出了相位共轭镜的设计原则；从理论上讲相位共轭技术可以完全补偿热畸变以及因各种光学不均匀性造成的光束畸变，但是相位共轭技术只对偏振态均匀的相位畸变造成的光束畸变起补偿作用，而对由于热致双折射效应造成的退偏以及光束通过硬边光阑时的衍射效应造成的光束畸变无能为力。

When one element of an N-element array is aberrated, the most sensitive aberration is Piston error, and then the sensitive aberrations are element defocus, tilt, spherical aberration, coma and astigmatism. As for four aperture system, the influence of Piston error is 2 times larger than that of defocus, and 4 times larger than that of astigmatism.

在合成孔径成像系统单个子孔径存在像差的情况下，Piston误差对系统的影响最大，其次是离焦误差、倾斜误差、球差、彗差和像散，对于四孔径系统，Piston误差对系统的影响几乎是离焦误差的2倍，像散的4倍。

Aberration Decoupling Analysis in Adaptive Optics System with Two Sets of Wavefront Correctors for All-path Aberration Correction.

双波前校正器全光路像差校正自适应光学系统像差解耦分析。

As a result, the model of low-frequency aberration induced by Nd:glass amplifiers is got. On the base of low-frequency aberration model some results are achieved such as the tendency of focal spot size changing as the RMS phase gradient changes and the characteristics for the scale length. 3. The simulation model of the beamline is set up and the propagating process is analyzed in the beamline. The correlation coefficient of two wavefronts is newly used to describe and estimate the adding result of them.

建立了求空间尺度的数学模型，并运用此模型对现有的放大片透射波前进行了分析，得出了多程系统中所用钕玻璃放大片引入的低频位相误差的空间尺度分布，并据此建立了模拟放大片低频位相误差的随机位相屏模型，在此基础上对焦斑大小随位相分布RMS梯度变化而变化的规律及空间尺度的特性进行了模拟研究； 3。

The calculating method of the clear physical image was given for the spot spherical aberration on axis, the relational expressions of geometrical size, place and medium of lens and the spot spherical aberration on axis were deduced.

对轴上点球差给出了一种物理图像较为清楚的计算方法，得到了透镜的几何尺寸、位置及其介质与轴上点球差的关系式。

Electron beam focusing ; space-charge effect ; emittance ; spherical aberration ; chromatic aberration.

电子束聚焦；空间电荷效应；发射度；球面像差；色散像差

Of or relating to an achromatic color of any lightness between the extremes of black and white.

中间色的属于或表明一种缺乏色度的颜色的，如灰、黑或白色的；无色彩的

Black, white and gray are achromatic, but called color s by artist.

黑色，白色和灰色是无色的，但美术家却称之为颜色。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。