光反射

This thesis presents detailedly OTDRs history, work principle, facture and application foreground.

本文详细的介绍了光时域反射仪的发展历史、工作原理、制作方法与应用前景。

Both theoretical intensity profile of the interference fringe pattern and experimental measurement are presented.

给出了聚焦激光束照射平板样品时两反射光束在远场形成的干涉场光强分布和调制光束加热时的光热干涉信号表达式。

The light is inclined to shot into from the air the hour of surface wants to take place the glint with refract, and refract the total and smaller angle of incidence in Cape, the underwater frogman tree seeing coast will become high.

光从空气斜射向水面时要发生反射和折射，且折射角总小于入射角，水下的潜水员看见岸上的树会变高。

The propagation equations for oblique and off-axial Gaussian beams passing through cat-eye optical lens are deduced by using the theory of matrix optics and expanding the aperture function into a finite sum of complex Gaussian functions.

运用矩阵光学理论以及将硬边光阑窗口函数展开为有限个复高斯函数之和的方法，进一步推导了倾斜离轴高斯光束通过猫眼光学镜头的解析传输公式，通过数值计算分析得到了倾斜系数和离轴量对猫眼效应反射光光强分布的影响规律。

For the first time the surface reflectors are designed using a combination of vector diffraction theory and geometric optics.

首次采用几何光学与矢量绕射理论相结合的方法设计出的反射曲面，较大地提高了准光模式转换效率，并使输出波束质量大为改进。

The relationship between the light transmission and the porous structure of the membrane can be explained by the geometrical optics principles.

设计了透光率测试装置，以光在不均匀介质中发生漫反射和漫折射的原理，解释膜内部多孔结构与透光率的关系。

According to the geometrical optics, the focusing spot of this parabolic mirror is studied by ray tracking.

根据几何光学原理，采用光线追迹的方法对该抛物面镜的光斑进行分析，证明通过抛物面镜反射聚焦后，能够将原始圆形激光束整形为光强分布均匀的窄条形光斑。

As an example, the multiple mirrors imaging system of KS-146 aero camera is introduced. Two kinds of method to estimate the image's rotating direction based on geometrical optics and vector are presented in detail.

本文以KS-146航空相机光学系统为例，介绍了对包括多反射镜成像系统扫描像旋转方向进行判别的两种方法－几何光学法和矢量法，分析证明两种方法的判别结果是一致的。

The gloss of a surface is determined by the way in which light is reflected from it.

表面的光泽由从其上反射的光的方式决定。

Something is red, gor it reflects most of the red light.

有些物体是红色，它就反射多数的红光。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。