棱镜

In dual-frequency laser interference measuring system Wollaston prism is an indispensable and important device,which can separate the incident beam in to measurement beam and reference beam according to the polarization direction of dual-frequency laser,so as to realize the high accuracy measurement.

在双频激光干涉测量系统中，Wollaston棱镜是不可缺少的重要光学元件，它可将双频激光按偏振方向分为测量光和参考光，从而实现高精度测量；但是，如果Wollaston棱镜的安装方位相对入射光线方向以及与聚焦透镜距离不同时，测量结果将会不同。

Based the principle of total reflection,the unique cone applanation prism is designed,by which the applanation area of ocular cornea can be measured linearly.

利用全反射原理，设计了特殊的圆台压平棱镜探头，可线性测量角膜的压平面积。本文介绍了圆台压平棱镜的设计方法，给出了测量压平面积的实验装置和测量结果

The minute random variation of the incident angle around the structure angle of air-gaped Glan-type polarizing prism gives rise to the perturbance found in the experiment.

实验中空气隙间隔格兰型棱镜的振动引起入射角在棱镜的结构角附近作微小变化，从而导致了透射光强的扰动。

During the Song and Yuan Dynasties the bronze mirrors appeared in all shapes: round, rectangular, rhomboidal, octagonal, and those with a handle.

宋、元时期出现了圆镜、长方镜、棱镜、八棱镜和带柄手镜等。

The polarizer is the key component in the treating of polarized information and the application of polarized technique. Polarizing prism talent showing itself for its high extinction ratio, good transmittance and powerful optical damage threshold. And from 1960s on, when the first laser appeared, polarizing prism is unsubstituted as an important polarizer in laser polarization technology.

偏光器件是偏光信息处理和偏光技术应用的核心元件；偏光棱镜以其较高的消光比、透射比和较强的抗光损伤能力在众多偏光器件中脱颖而出，特别是上世纪60年代后，随着激光器的诞生，偏光棱镜在激光偏光技术的应用中更是发挥了难以替代的重要作用。

By this solid-contacting configuration, it was found that the spectra of dielectric function measured at the metal-substrate interface do change with the refractive index and differ from those measured at the metal-air interface in both the Drude and interband transition regions.

采用不同折射率的梯形棱镜作衬底，室温下用热蒸发或电子束蒸发的方法，在棱镜底面生长一系列金膜和银膜，使用椭圆偏振光谱方法分别测量了金属与空气界面及金属与衬底界面的介电函数谱。

The separation angle about beam and beam is depended on the vice structure angle:the design of splitting Li P prism is better about the need of beam vertical out;the design of splitting Grand · Thompson prism is better about the need of big splitting angle .

出射的 光与光的分离角与副结构角有关；对于光垂直出射的需要，选用分束李普奇棱镜设计为好；对于大分束角的需要，选用分束格兰·汤普逊棱镜设计为好。

The ray from the plasma lamp will go through into the light pipe with little incident angle after reflection by the reflector, and then the total reflection of the ray will occur among the prismatic reflecting films. Some ray may come to the end mirror and will be reflected back, and only a little of rays pass through the prismatic reflecting films, most of the rays will go forward by the action of the bottom light extracting surface and go out to be lighting.

等离子灯球发出的光线经过反射器反射后，以很小的入射角进入到导光管，光线在棱镜反光膜管子内进行全反射，到达丙烯酸树脂管端底镜面的光线，再反射回到管子内部，只有少量的光线透过棱镜反光膜出来，最终大部分光线通过管子底部的光线提取面引出管外，传送到所需要照明的宽广区域（见图7）。

In one embodiment of the present invention, the optical fingerprint sensor includes:(1) a light source on a PCB assembly,(2) a diffuser that receives light from the light source,(3) a right angle prism that receives light from the diffuser,(4) a collimating lens that receives light from the prism,(5) a first mirror that receives light from the collimating lens,(6) a second mirror that receives light from the first mirror,(7) a third mirror that receives light from the second mirror,(8) an imaging lens that receives light from the third mirror, and (9) an image sensor on the same PCB assembly as the light source that receives light from the imaging lens.

在本发明的实例中，该光学指纹传感器包括有：①一个装在印刷电路板上的光源；②一个散射镜接收从光源发出的光；③一个直角棱镜接收从散射镜出来的光；④一个准直透镜接收从棱镜出来的光；⑤第一块镜子接收从准直透镜出来的光；⑥第二块镜子接收从第一块镜子出来的光；⑦第三块镜子接收从第二块镜子出来的光；⑧一块成像镜接收从第三块镜子出来的光；⑨一个与光源安装在同一块印刷电路板上的图像传感器接收从成像镜出来的光。

An inconvenience of prism couplers is that the prism material must have a high refractive index ??

棱镜耦合器的一个不方便的地方是棱镜材料必须有较高的折射率？

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了