查询词典 reflected wavefront

Objective To study the characteristics and role of wavefront aberrations in children with refractive amblyopia.

目的 了解儿童屈光性弱视波前像差的特点，探讨波前像差在屈光性弱视形成中的作用。

And Strehl ratio of 0.989 in our experiment indicates the approximate upper limit of the ability of LC SLM to correct a aberrated wavefront when it is used in adaptive optical system.

改变了传统的扭曲向列液晶器件难于进行纯相位调制和得到高准确度调制的缺点，达到了理想的效果。

In this paper the influence of coma and spherical aberration on the far-field distribution and antenna receiving power is analyzed, in which aberration attenuation factor is introduced and the relation of it to root mean square of wavefront aberration is given.

分析了球差和彗差对信号光远场分布、天线接收光功率的影响，引入了畸变衰减因子，给出了畸变衰减因子与波前畸变均方根值的关系。

Design of Binary Optical Element Applied in Excimer Laser Wavefront Shaping.

应用于准分子激光波面整形的二元光学元件的设计。

The phase of optical wave can be recovered by the intensity transport equation under the paraxial approximation For the optical system with diffraction limit, it is difficult to get the boundary radical slope of phase and sample in the circular domain boundary when using the intensity transport equation to recover the phase, consequently, we reviewed an algorithm mentioned in the reference ［4］, namely, the equation, computation domain and boundary condition are changed, then the phase is reconstructed by the multigrid method and corrected at last Moreover, the experiment system is set to testify the algorithm, and the recovered phase from the intensity data detected by CCD is compared with the result from phase retrieval algorithm, it is found that the phase reconstruction error can reach 017 λ in the case of non-uniform intensity distribution, as a result, the method is suitable for the phase recovery with low wavefront sensing accuracy.

在傍轴近似条件下，可以利用光强传播方程对畸变波前进行相位恢复。对于衍射受限的光学系统，很难获得相位的边界径向斜率值作为边界条件，此外，要获得精确的圆域边界采样值也并非易事。为了克服上述困难，进一步研究了相位恢复改进方法，即改变了方程的表示形式、计算区域和边界条件，并用多重网格法进行求解获得重构相位，最后再将其修正。为了验证算法的精确性，搭建了实验系统对算法进行实验验证，将由CCD探测的光强分布进行计算得到的相位分布与相位恢复算法的结果进行比较，证明在光强分布非均匀的情况下，该方法恢复的相位均方根误差能够达到017 λ，可以适用于波前传感精度要求不是很高的相位恢复。标签自适应光学相位恢复相位修正光强传播方程 adaptive optics phase retrieval phase correction intensity transport equation

Due to the coupling of every Zernike circular polynomial in the annular field, the SEIDEL coefficients solved by wavefront fitting with circular polynomial for annular pupils with big central obscuration would have larger errors.

由于Zernike圆多项式各项在环域上的交叉耦合，对于具有大中心遮拦的环孔径波面采用圆多项式拟合求解SEIDEL像差系数存在较大误差。

So DOE is used in transmitting and receiving optics of laser radar,which can not only collimate laser beam,but also can transform and shape the laser wavefront.

将衍射光学元件用于激光雷达的光学系统上，不仅可以实现对激光光束的准直，同时还可以对光波波前进行变换和整形。

With the new wavefront-driven ablation system by Visx, the Food and Drug Administration clinical trial data (summarized by Colman Kraff, MD on page 4 of this supplement) suggests that 20/20 has now become the baseline expectation.

由VISX公司和美国FDA发起的新的波前导切削系统的临床试验数据(由Colman Kraff博士总结)显示， 20/20 现在已经成为了术后期望值的底线。

Monochromatic optical aberrations and pupil size were measured with a Hartmann-Shack wavefront sensor under monocular viewing conditions, without pharmacological dilation or cycloplegia.

使用Hartmann-Shack波前感受器测量单眼注视下的单色光学像差和瞳孔直径，不使用药物散瞳或麻痹睫状肌。

Extension ratio of the depth of field for wavefront coding imaging system.

扩大景深的波前编码成像系统特性分析。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。