astigmatic

· RESULTS: The results of diopter and astigmatic axis by retinoscopy and computer optometry were same or similar, with no significant difference ( P> 0.05).

结果：正常瞳孔下电脑验光和散瞳下检影验光得到的屈光度和散光轴向相同或极其相似，统计学处理无显著性差异（P>0.05）；

Research on the optical astigmatic focus technology for measuring consistence in solution

光象散法测量溶液浓度的研究

The resonator ( astigmatic ) can be compensated by inserting a suitable thickness Brewster plate in the cavity.

在腔内插入一定厚度的布儒斯特片可以部分消除腔的像散.

Objective: To compare the results of spherical power ( DS), cylinder power ( DC), and astigmatic axis ( AA) measured with lower order aberration to that of clinical refraction.

目的：比较成人近视患者的低阶像差测量结果与用主客观不同验光方法所获得的球镜屈光度、柱镜屈光度和散光轴向之间的差异，并对其相关因素进行分析。

Influences of an Astigmatic Lens on Cosh-Gaussian Beams

像散透镜对双曲余弦高斯光束的影响

When the astigmatic degree < 1.50D, mydriatic optometry is of help to found the axis of cylindrical lens.

对于合并1.50D以下的散光患儿，散瞳验光可能更有助于确定柱镜的轴向。

Two-Step Astigmatic Rainbow Holography for the Reconstruction of Large-Viewing-Angle and Distortionless Images

大视角无畸变两步象散彩虹全息术

The astigmatic cavity with a cylindrical len is studied by using matrix optics method.

本文用矩阵光学的方法研究了内含柱面透镜的象散腔。

Using astigmatic method to extract information of light source in z axis.

用散光的方法来提取光源在Z轴上的位置。

Studies on high precise astigmatic focus error detect system

象散法高精度离焦检测系统研究

Based on the propagation theory of laser beams, the change of beam parameters, focal switch and beam shaping of laser beams after passing through an astigmatic lens are analysed in the present thesis. 1.

本文以激光光束传输理论为基础，研究讨论了激光光束通过像散透镜聚焦后光束参数的改变，焦开关现象及光束整形等。

The resonator ( astigmatic) can be compensated by inserting a suitable thickness Brewster plate in the cavity.

在腔内插入一定厚度的布儒斯特片可以部分消除腔的像散。

There were positive correlation in astigmatic degree and axis.

散光度数无相关性，散光轴向正相关；

Based on the Collins formula, the propagation expression of astigmatic Cosh-Gaussian beams passing through a bifocal lens system is derived.

基于Collins公式，推导了有像散双曲余弦高斯光束通过双焦透镜系统后的解析传输公式，分析了该光束轴上光强分布和焦移。

The analysis of electromagnetic scattering characters of ocean surface by complex astigmatic wave

内含柱面透镜的象散腔海洋表面电磁特性的复象散波分析

In this paper, transformation of astigmatic Hermite cosh Gaussian beams through an optical symmetrizing system is studied.

研究了用于厄米高斯光束对称化的光学系统对像散厄米双曲余弦高斯光束的变换。

By changing the Fresnel number the focal switch can also be produced under certain conditions. 3. The focal switch of elegant cosh Gaussian beams focused by an astigmatic lens is studied in detail and the influence of parameters on the focal switch are investigated.

详细研究了复宗量双曲余弦高斯光束通过像散透镜聚焦后的焦开关现象，分析了光束参数、像散参数、菲涅尔数及光学系统几何参数对焦开关现象的影响。