查询词典 laser

METHODS: A retrospective study of outcome of LASIK (Allegretto excimer laser system and Moria C-B microkaretome) for predominant myopic astigmatism (group A, 28 eyes) and normal myopic astigmatism (group B, 30 eyes).

分析LASIK技术（鹰视准分子激光系统和MORIA C－B微型角膜刀）治疗以散光为主眼(A组，28眼)和以近视为主眼(B组，30眼)的术后结果。

Results: The refraction results of the Allegretto Wave Analyzer were very unstable. The spherical, cylinder diopter and the axis of the cylinder varied greatly. The refractive errors were large while the refractive errors were little by the subjective refraction examinations. During the wavefront examination, spots of the laser matrix were blurring, and the reproducibility was not good. Wavefront analyses showed that the Array pseudophakic eyes had relative large coma while the patients had no obvious symptoms.

研究结果：像差分析仪检测得的屈光度结果十分不稳定，球镜度、柱镜度、散光轴都变化很大，可重复性差，检测的屈光不正度数较大，而主觉验光时，患眼的屈光不正度数较低。5只眼的光学矩阵的测量点均非常模糊，且测量结果的可重复性较差，像差分析显示，Array人工晶状体有很大的第三阶彗差，但患者的自我感觉良好。

Methods: Twenty-seven patients (31 eyes) undewent phacoemulsification and implanted with Alcon Acrysof SA60AT intraocular lens. Allegretto Wave Analyzer (Wavelight Laser Technologie AG, Germany) was applied to analyze the wavefront aberrations.

应用Allegretto wave Analyzer波前像差仪观察本科室27例（31只眼）人工晶状体眼的波前像差改变，并与21例（23只眼）同龄晶状体透明眼的波前像差比较。

In the experiments of Rayleigh laser guide star for adaptive optics on altazimuth Coudé telescope, the technology of LGS launched and received in the common aperture using polarizing beam splitting scheme is researched.

在地平式折轴望远镜上开展自适应光学瑞利激光导星实验，研究了信标光束同孔径发射和接收偏振分光技术。

The physical model of polarizing beam coupling and splitting system using altazimuth coude telescope is built up based on Mueller matrix and Stokes vector. The phenomena of the decreasing of the receiving efficiency are successfully explained by this model. Three dynamic phase compensation solutions are proposed: 1 Two quarter-wave plates are rotated to compensate the phase of the laser.

针对这个问题，建立了地平式折轴望远镜的共孔径偏振耦合分光模型，用Stokes矢量和Mueller矩阵分析了在望远镜旋转过程中激光偏振态的变化，数值模拟计算了望远镜处于不同方位角和天顶角时的偏振耦合分光效率，解释了实验中观察到的望远镜旋转导致偏振耦合分光效率退化的现象。

The laser altimeter's performance is affected by its geometry overlap factor, and the effect is discussed.

对激光高度计系统受杂散光的影响情况进行了分析，并对抑制杂散光提出了相应的解决措施和方法。

The laser altimeter design method,principle and requirements of the preamplifi...

实验表明，所设计的前置放大电路可以有效地满足设计要求。

The straylight of laser altimeter is calculated and analyzed, and the measurement is given to restrain it.

设计并研制了激光高度计的双轴配准度测试系统。

Theoretical model for return signal of laser altimeter.

激光测高仪的回波信号理论模型。

This article describes the detail of design a prototype of satellite laser altimeter, and the aim is to develop altimetry technology for our country.

本文在基于对激光测高仪原理样机的研制基础上，旨在对我国激光测高仪技术做一些开拓性的工作。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。