查询词典 achromatic aberration

Objective To compare changes in higher-order aberration of moderate to high myopic eyes after laser in situ keratomileusis and laser-assisted subepithelial keratectomy.

目的 比较准分子激光原位角膜磨镶术和准分子激光上皮下磨镶术对中高度近视眼高阶像差的影响。

Methods 11 cases loss UCVA or had optical aberration were undergone enhancement guided by corneal topograph , which included regression 5 cases、central island 3 cases、eccentric ablation 3 cases . Visual acuity and visual complication were followed for 6 months.

对11眼（11例）PRK术后出现视力不良者(其中偏心切削5例，角膜中央岛3例，屈光回退3例)在角膜地形图引导下进行个体化准分子激光切削，术后随访6月，观察视力和视觉症状。

In order to decrease total optical length, a design scheme was employed by selecting mechanically compensated zoom lens with a negative compensator, shortening the focus length of variator and compensator, and increasing the distance between front group and variator. An initial configuration was obtained by solving equations of aberrations. According to aberration theory, the aberrations were corrected by using ZEMAX optical design software.

为缩短筒长，采用负组补偿偏离物像交换变焦结构，缩短变倍补偿系统各组元焦距，增加前固定组和变倍组间距的设计方案，通过解初级像差方程求得初始结构，依据像差理论，利用ZEMAX自动设计软件进行像差校正平衡。

And they were visual acuity, contrast sensitivity function, accommodation and vergence ocular optical aberration and cortical topography.② From the general data collection, the volume of refractive surgery was in the development curve from sharp up to flat up trend, LASIK was the domain one.

结果 从以不同角度设计的临床基础研究中总结出与视觉功能有关的参数，主要有视敏度和对比敏感度视力、调节和辐辏功能参数、眼球像差、角膜形态参数。

By adducing a new concept梕quivalent phase plate, this correcting method is simulated and an wavefront aberration correcting experiment is done. 5. The theoretical foundation of the self-correcting method is further discussed and an experiment to testify this method has been done.

对位相补偿反射镜位相校正思想进行介绍，提出了等效位相片的概念，并对位相补偿反射镜这种位相校正方法进行了细致的模拟研究和实验验证；5。

To improve the accura-cy, the system calibrates the magnification and the aberration of the optical system with the linear and nonlinear method.

对光学系统放大倍数和成像系统像差分别进行线性、非线性标定以提高测量精度。

Some issues on the principle and techniques for system calibrating as well as the effect of image aberration were discussed.

分析了噪声对光刀边缘像素的影响，给出了基于剪切变换的光刀像素确定方法。

In the method, camera was calibrated according to linear model, then its nonlinear parameters were modified based on considering lens aberration, at last image was emendated according to new parameters, full camera calibrated steps and procedure were...

在扩展两步标定方法中，首先对相机进行线性标定，然后进行非线性修正，最后进行图像校正，并提出了完整的标定步骤和程序，进行了相机标定实验。

In the method, camera was calibrated according to linear model, then its nonlinear parameters were modified based on considering lens aberration, at last image was emendated according to new parameters, full camera calibrated steps and procedure were put forward, and an experiment of accident scene photogrammetry was done.

在扩展两步标定方法中，首先对相机进行线性标定，然后进行非线性修正，最后进行图像校正，并提出了完整的标定步骤和程序，进行了相机标定实验。

What makes Deron Williams such an aberration is not only did he transform into that person who commands attention, but he intuited how to do it himself.

让德隆-威廉姆斯不引人注意的原因不仅仅是因为他没用转型成那种引人注目的人，而且还是因为他本能地知道如何去做自己。

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。