查询词典 optical

Also, to study the subluminous phase velocity in optical field is meaningful and fundamental from the view of basic research in optical theory.

另外，相速度本身是光场传播理论中的一个基本问题，研究光场低相速度区存在的一般规律，也是一个有意义的基础性研究课题。

Phenix Optical Instruments Group is a key domestic high and new technical enterprise with a 43-year history, the first listed company in China's optics industry, and the largest enterprise producing optical instruments in China's optics industry.

凤凰光学集团是一个有着43年历史的国家重点高新技术企业，中国光学行业第一家上市公司，也是我国光学行业中最大型的光学仪器生产企业。

The optical properties, fluorescence quantum yields and electrochemical properties of these polymers were investigated. It was found that the optical properties of the polymers did not show obvious dependence on the alkyl length on phenylene.

苯环上烷基侧链长度的改变对取代共聚物的光谱、电化学和发光效率等影响很小；而随着苯环上烷氧基侧链长度的增加，聚合物的光谱稳定性逐渐增强，荧光发射光谱中的0-1转变逐渐被抑制，荧光发射半峰宽减小。

The underwater photomicrography optical system against little bubbles is analysed. The main technical indexes of optical system and the signify parameters of image gathering system are ascertained. Some key techniques such as depth of field, lighting, etc.

分析了针对水下小气泡的水下显微摄影光学系统，确定了其主要技术指标和图像采集系统的重要参数，讨论了水下高速显微摄影的景深、照明方式等几个关键技术问题。

It makes use of an optical system to focus an optical image onto a photosensitive surface of an electron gun which then converts the image into the electronic form, either as charge pattern on storage device or in non storing mode, traveling electrons.

它利用光学系统集中了光学图像感光表面上的电子枪，然后将影像转换成电子形式，无论是作为收费模式上的存储设备或在非存储模式，旅游电子。

The computational flow of light propagation and the key techniques of visualization are presented. An optical system was employed to verify the correctness and feasibility of quaternion method in the calculation of beam propagation, and the pincushion distortion caused by the optical system was successfully simulated.

通过对某光学系统的仿真分析，成功仿真出图像经过光学系统产生的枕形畸变，证明四元数方法在光线传输运算中的正确性与可行性，为复杂光学系统的空间光线传输计算提供了另一种方法。

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本发明涉及全固体激光器的光泵浦系统，特别是一种盘式激光器的光泵浦系统。包括热沉1、激光晶体2、光纤3、平面反射镜4、第一凹面反射镜5、第二凹面反射镜6、第三凹面反射镜7，本发明采用平面反射镜位于光纤与第一凹面反射镜之间的结构，使LD和激光腔位于本发明激光晶体的同一侧，从而减小了激光器的封装尺寸；本发明将平面反射镜固定在热沉上，使泵浦光束斜入射角减小，泵浦光则能充分吸收，为此，本发明解决背景技术采用第一凹面反射镜使泵浦光束斜入射角过大引起的像散，泵浦光斑变形引起泵浦效率降低问题，使得本发明可选用大面积半导体制冷器，避免使用水冷，则激光器的体积大大减少，有利于产品的全固化，保证了激光晶体的散热要求。

In this paper, we report the calculation of single line-image and double lineimage for various configuration of diffractive optical element, which were designed as one- dimensional plane configuration of bar- shaped pure- phase from the principle of the optical equal- path compensation.

报道以一维平面阶梯条形纯位相结构，用等光程补偿的物理概念出发，计算了单线与双线象的衍射光学元件的多种构形，获得了与理想衍射线象符合的光强分布；同时发现双线象时会出现噪音光强小峰，这在精确成象时仍是要设法避免的。

It is the first time to accomplish systematic thermal/structure/optical analysis of space optical remote sensor in our country. The adaptive optics correction close loop experiment system of reflective plane mirror is designed.

把NASTRAN有限元软件给出的镜面变形数据引入CODE V光学软件，在CODE V环境中建立了该R-C系统，并分析了主镜温度变形对系统像质的影响，完成了空间光学遥感器光学系统完整的热光学综合分析。

It measures the rotation angle of optical wave polarization plane caused by magnetic field produced by current when the optical wave goes through magneto-optic material to calculate the current.

光纤电流传感器是以法拉第磁光效应为基础、以光纤为介质的新兴电力计量装置，它通过测量光波在通过磁光材料时其偏振面由于电流产生的磁场的作用而发生旋转的角度来确定被测电流的大小。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。