查询词典 optical density

In product range, the photoelectric Qualcomm basically GEPON, SDH, PDH, MSTP, such as optical transmission products, interface conversion equipment, telephone Optical, PCM MUX, cross-connect equipment, video surveillance equipment, Industrial Ethernet network products as the main products, each product has a rich product portfolio and strong network management function.

在产品种类上，光电通基本上是以GEPON、SDH、PDH、MSTP等光传输产品、接口转换设备、电话光端机、PCM复用设备、交叉连接设备、视频监控设备、工控以太网产品等为主要产品，每种产品都有着丰富的产品系列和强大的网管功能。

In this study, copper alloy adding Ti-Zr and Al-Zr was the target and made the cupper alloy ingots by vacuum arc remelter. After rolling and heat treatment, the two-inch round target was cut by wire electrical discharge machining. DC sputtering deposited cupper alloy thin films on silicon base materials and optical glasses to discuss the thin film microstructures、compositions、practical performances and optical characteristics.

中文摘要本研究以自行设计之铜基合金靶材，在铜基材料中添加钛锆与铝锆等微量金属，以真空电弧熔炼制作铜合金方锭，经滚压加工及热处理后，以线切割机切成两吋之圆型靶材，再进行直流溅镀沉积铜合金薄膜於矽基板和光学玻璃基板上，探讨不同成分比例下之薄膜显微结构、成分组织、实用性能与光学特性。

Referring to the function of cylindrical lens and the principles of holographic optical elements, we make this holographic element, which can achieve the optical function of cylindrical lens, and have the advantage of large-scale, short focal length and well-distributed light energy, in order to meet the requirements of laser direct writing synthetic holograms.

实验结合激光直写合成全息拍摄时所需柱面透镜的功能，参考全息光学元件的制作原理来制作图像柱面压缩全息光学元件，实现柱面透镜的光学功能，并使元件具有大面积、短焦距、会聚光均匀分布的特点，满足激光直写合成全息拍摄对图像的需求。

Two problems were solved in numerical calculation, one was that a term of 1/r in Maxwell was divergence in cylindrical center where r=0, another was that the value of optical field at cylindrical center was difficult to decided when the cylindrical center set as a boundary condition in Maxwell equation, So the values of optical field need just calculate from cylindrical center to cylindrical boundary, comparing from cylindrical boundary to cylindrical boundary, near upon half CPU time and RAM saved.

计算中解决了在圆柱中心线上Maxwell方程存在发散项1/r以及用圆柱中心线作为边界条件时，中心线上光场值难确定的问题，因而光场只需从圆柱中心计算到圆柱边界，和以圆柱的两条边做为边界条件比较，节省了将近一半的计算时间和计算机存储空间。

The optical source device includes a flexural luminous tube used to produce optical source and can compensate the brightness of the two ends by the flexural structure of the two ends, and a shroud component installed on flexural part of the two ends of luminous tube to defilade part of light from luminous tube.

该光源装置包含：一弯曲灯管，用来产生光源，并藉由两端的弯曲结构补偿两端的亮度；以及一组遮蔽组件，安装于灯管两端弯曲的部分位置来遮蔽该灯管的部分光线。

The major work of our laboratory is to design the electric-optic interface module for the system, including the designation of signal multiplex, optical transmission, optical reception and signal demultiplex etc.

本实验室主要承担对系统光电接口模块的设计，具体包括设计实现对发送信号的复用、激光器的调制、光接收以及对接收信号解复用等功能。

The main research contents and results are given as follows:(1) Principles and characteristics of different types of polarization controllers are analyzed, the compare of the difference of these polarization controllers are discussed based on them, drawn a conclusion that the polarization controller which based on squeezing fiber and has variable delay quantity are suitable for high speed optical communication system.(2) The reset principle of the typical four channel polarization controller which is based on squeezing fiber is analyzed, and the design of its concrete reset scheme is given based on them. The reset process and the corresponding operation list are given in detail.(3) The systematical experiment is made when the typical four channel polarization controller is put into the PMD compensator. The experiment result showed that the channel which needs reset can efficiently return to the mean place, and the effect of reset was good, it didn't cause any badness infection on PMD compensation.(4) A new type optical signal time-domain depolarizer is given, and a new PMD compensate method is given based on it.

由此得出延迟量可变型光纤挤压型偏振控制器适用于高速光通信系统的结论；(2)具体分析了典型的四通道光纤挤压型偏振控制器的复位原理，并在此基础上对其进行了具体复位方案的设计，给出了各种情况下的详细复位流程和相应的复位操作列表；(3)将四通道光纤挤压型偏振控制器应用于偏振模色散补偿器中进行系统实验，实验结果表明，需要复位的通道能有效地回到中间值，复位效果良好，且复位未对PMD补偿产生不良影响；(4)设计了一种新型的光信号时域退偏器，并基于该退偏器提出了一种新型的偏振模色散补偿方法。

A novel amplitude sensitive optical heterodyne polarimeter with sourse of a Zeeman laser was setup. The aim was to measure the optical activity of a Quartz Cornu Depolarizer, OCD, and Twisted-Nematic Liquid Crystal, TN-LC, at high accuracy and of aqueous humor in rabbit, in vivo, compared with the test of the concentration of blood sugar, in vitro.

本实验利用极化光共路径光学外差干涉方式架设极化仪；此种光学架构特性在於其结构简单，光学外差共光路特性加上采用参考光得以大幅度的降低雷射以及环境所造成的杂讯，进而得到准确且高灵敏度的旋光性量测结果。

As a professional manufacturer of Optical and crystal Components, Foctek supplies Quality Products including High Precision Prism, Lens, Filter, Window, Beamsplitter, Mirror, Quartz Waveplate, Polarizer, Depolarizer, Polarization Beamsplitter, Micro Optics, Laser Crystals and NLO Crystals and Magneto-Optical Material, etc.

福特科是一个专业的光学和晶体元件制造商，公司的产品主要包括高精度棱镜，透镜，光学窗片，滤波片，反射镜，分光棱镜，波片，偏振器，偏振分光棱镜，消偏振器，微光学元件，激光晶体，非线性光学晶体，磁光材料等。

The structural and optical properties of the DLC films are analyzed by utilizing optical transmission, infrared absorption and small angle X-ray diffraction spectroscopy.

用光透射率、红外吸收谱和小角度X射线衍射谱分析了DLC膜的结构和光学性质。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。