查询词典 optical

As to the remaining parameters, two methods are developed: first, accepting that the projection function complies with a circular function within at least a part of a given field of view, constrained by the obtained object-to-image radial mapping and a constant focal length, the best-fitting point of the optical origin is tested along the optical axis; secondly, referring to the postulation of the exclusively bilateral mapping between an imaged point and its scenic sight ray, a measuring technique is developed to survey the world coordinates which will fabricate a projecting path to the imaged points located on the imageable region of the image plane in order to directly model the projection geometries involved.

而针对其余参数本文提出两种解题方法：其一是根据『在「部分视野角范围」内，鱼眼相机的投射模型符合一典型的「圆形函数」』以标靶实体与其影像尺寸为限制条件，测试光学轴上的最佳视觉参考点、鉴定最适当的投射模型、焦距、及有效的视野角度范围。其二是根据『一视野线排他性地与对应「呈影点」一一映射』参考一呈影点来搜寻空间中对应视野线的绝对座标后，据以演绎相机内部影像形成的模型。

At last,a optical engineering software is introduced to simulate optical scattering in the deep sea water ,and studys the corelation between scattering and relative refractive index,particle density and particle size in the sea water.

最后通过光学工程软件对海水中的散射进行仿真实验，研究散射与海水中粒子密度、粒子大小和相对折射率的关系。

Finally, we use volume holographic multi-channel optical correlator to construct an optical fingerprint identification system.

最后，我们应用多频道式体积全像光学相干器建构指纹辨识系统。

After that, the reliability of Optical Cross-Connect devices, which play an important role in optical networks, is discussed and analyzed.

然后，具体介绍了光网络可靠性评估的步骤。接着，重点考察和评估了光网络中有重要地位的光交叉连接设备，并详细讨论和分析了其有保护下的设备可靠性。

Waveband switching was used to reduce the complexity and the size of multi-granular optical cross-connect in wavelength-division-multiplexing optical networks.

0引言波分复用(wavelength-division-multiplexing，WDM)技术在大幅度提高传输容量的同时，也增加了交换设备的规模、控制难度和管理复杂性[1]。

The integrated aberration-reduced gratings are the key elements in high capacity optical network using wavelength routing and forming the basis of an optical cross-connect, they are used in demultiplexer.

现代谱仪中的光电探测元件一般是平面型的，消像差光栅是平场谱仪的关键元件。微型消像差光栅也是光通讯中的无源波分复用器的核心元件。

WDM systems for the realization of the transmission medium related to characteristics and key technologies, including light source, cross-connect technology, as well as add-drop multiplexing, optical transponders, photosynthetic wave / wave devices, optical amplification technology.

为实现WDM系统涉及到的传输媒质特性以及关键技术，包括光源、交叉连接技术以及分插复用技术、光转发、光合波/分波器件、光放大技术。

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。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。