查询词典 refraction law

Brewster's Law states that the index of refraction in a strained material becomes directional, and that the change of the index is proportional to stresses.

布鲁斯特的法国表示，折射率，在紧张的物料定向，并改变该指数是成正比讲。

An optical system with refraction and total internal reflection was proposed according to the luminous characteristic of LED and the law of energy conservation. The ordinary differential equations satisfying the spots on the contour curve of TIR refractive and reflective planes were established. The coordinates of points on profile curves were obtained by solving these ordinary differential equations using Runge-Kutta method. The profile curves were acquired by curve fitting of the coordinate spots with software UG, and then TIR model of the projector and data of the surface shape suitable for NC manufacture were obtained.

根据LED的发光特性以及能量守恒定律选择采用折射全反射光学系统，通过建立TIR折射面及全反射面轮廓曲线上的点所满足的常微分方程，利用RungeKutta求解常微分方程得到轮廓曲线上点的坐标，再在UG中对坐标点进行曲线拟合得到轮廓曲线，进而得到TIR模型及适合数控加工的面形数据。

Based on the stress optics law and the theory of elasticity thermal stress, the relation between optic path difference of double refraction and main stress difference is derived.

基于应力光学定律和弹性热应力理论，导出双折射的光程差与主应力差之间的关系。

According to the law of refraction, a measuring apparatus was designed, which can measure refractive index of transparent medium. This paper expounded the design principle of the measuring apparatus, its usage and some experimental content, and gave measurement results of refractive index on some materials.

将CCD测试技术引入物理实验，介绍了依据折射定律设计的能够测量任何透明介质折射率的仪器原理、使用方法及开设的部分实验内容，给出了对一些材料折射率的测量结果。

The Snell law of refraction is:n_1,sinα=?

是金属的复折射率，因此，折射角？

Descartes had either learned the sine law of refraction from Willebrord Snell (Snell's Law) [6] or had discovered it independently, and this allowed him to quantify spherical aberration.

笛卡儿要么据悉，正弦规律的折射，从willebrord snell [ 6 ]或发现了它独立，这使他能够量化球面像差。

The law of refraction, discovered first empirically by Willebrord SNELL, then subsequently derived formally by Descartes and Fermat, states that sin r = K sin i, where i is called the angle of incidence, the angle between the incident ray and the normal to the refracting surface.

折射的轨律，首先被 Willebrord SNELL 靠经验发现，接着后来正式被笛卡尔和 Fermat 认定，规定 sin r = K sin i ，这里 i 被称作入射角，入射光线和法线到折射平面之间的夹角。

Research reflected light refraction and vector-vector changes in the law, discuss the extra path difference, the phase phase-shift, model and so on plane of polarization revolving optical phenomena.

研究反射光矢量和折射光矢量的变化规律，讨论额外程差，位相相移，偏振面旋转等典型的光学现象。

Snell's law reveals the propagation and refraction properties of the light when it passes through the interface composed by two media with different optical constants.

Snell定律揭示了光在穿越不同介质界面时的传播和折射规律，这是现代物理光学的重要基础。

However, the refraction of plane wave in reaction-diffusion system obeys Snell's law only for proper diffusion coefficients and system parameters.

在二维复金兹堡-朗道方程描述的反应扩散振荡系统中，就扩散对平面波折射率的影响进行了数值研究，从Snell定律出发导出了折射率的解析表达式，数值和理论结果表明：在纯扩散情况下，平面波的折射满足Snell折射定律，扩散只影响着平面波折射率的大小；在同时存在反应扩散情况下，只有在适当的扩散系数和系统参数下，平面波的折射才满足Snell折射定律。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。