查询词典 Lens

Though the opacified lens is replaced by a crystal clear optics during the cataract surgery, the disturbance of the compensatory effect of nature lens to positive corneal spherical aberration has been made by the conventional spherical intraocular lens.

然而白内障手术去除了混浊的水晶体，但是所植入的传统球面水晶体虽然提供了透明无瑕的光学区，却忽略了角膜所产生的高阶像差，尤其是球面像差。

Water was syringed between lens nucleus layers to free the lens from its layers and extract it from the little incision,and fulfiled lens crush and liberation.

用钝头针插入晶状体核层间注水，使硬核周围的核壳层层分离，游离出硬核并将之溢出切口，完成碎核、娩核。

And Technology, Changchun 130022, ChinaAbstract : The optical design of wide spectrum WFOV LLL collimating lens and the structure of lens set are introduced. The correction of the secondary spectrum of the WFOV LLL collimating lens are described emphatically.

介绍宽光谱大视场微光准直镜的光学设计和镜组结构方案，侧重叙述大视场微光准直镜的二级光谱校正方法。

The invention provides an ultra-short length erbium-ytterbium co-doped high gain glass fiber superfluorescence light source which includes: a semiconductor laser 1, a coupling lens system 2 (including a collimating lens 3 and a focusing lens 4), a signal light total reflective mirror 5, a high gain fiber 6 a pumped light input terminal is a vertical cutting terminal 8 in figure (a structure and is a bevel terminal 7 in figure structure, a superfluorescence output terminal is the bevel terminal 7 in figure and.

一种超短长度铒镱共掺高增益玻璃光纤超荧光光源，包括：半导体激光器1，耦合透镜系统2(包括准直透镜3和聚焦透镜4)，信号光全反镜5，高增益光纤6泵浦光输入端在图(a结构中为垂直切割端8，在图结构中为斜角端7，超荧光输出端在图、中均为斜角端7四部分。

Widely used in optical glass lens, lens resin, synthetic products such as plastic lens surface coating, in the civil decorative coating color especially grain drill, stones coating, dual-use car mirrors films, hand colored surface, all kinds of color Or through the surface reflection equipment, etc.

广泛用于光学玻璃镜片、树脂镜片、合成塑料镜片等产品表面镀膜，在民用彩色装饰镀膜(特别是晶钻、水钻镀膜、两用型汽车后视镜片、彩色手表面、各种彩色或透反射仪器表面等)生产上具有丰富的经验。

The lens design incorporates an inner focusing system that prevents the front of the lens from rotating, making it particularly suitable for using circular polarizing filters and petal-shaped lens hoods.

该镜头的设计采用了内对焦系统，防止旋转镜头的前面，使特别是使用圆形偏振滤镜和花瓣形镜头遮光罩合适。

Before a company has 10,000 clean room production line, is a professional manufacturer of mobile phone glass lens, camera lens (self-coating, screen printing, packaging) company, is specialized in the production after an acrylic lens, have passed ISO9000 appraisal company , we are pursuing a professional.

前一家公司拥有万级无尘车间生产线，是专业生产手机玻璃镜片、摄像头镜片公司，后一家是专业生产压克力镜片，均已通过ISO9000论证的公司，我们追求的是专业。

A varifocal f-theta lens was designed for Nd:YAG laser making scan focusing system, so that it apply to differ making area but change a lens necessarily. the system consists of four lens ,made by glass BK7, SF18 and SF11. The total length of the system is 122.96mm, working at 1064m.

为Nd：YAG激光打标机设计了变焦距f-theta镜扫描系统，以使它适用于不同的打标面积而不必更换镜头，系统由四片透镜组成，材料分别为BK7，SF18和SF11，系统总长度为122.96mm，工作波长1064nm。

If the lens is composed of plastic lenses, it is best not to use the lens of water, do not use alcohol to clean the mixture of ether plus lens.

如果镜头是由塑料镜片组成的，那最好还是不要用镜头水，也不要用酒精加乙醚的混合液来清洁镜头。

As the lens barrel is provided with the inner metal tube which is integrally formed together with the outer plastic tube, the problem that the precision of the lens barrel is not enough due to the cooling shrinkage deformation of the common lens barrel adopting a plastic material is avoided.

由于所述镜筒具有一金属内筒，且其与所述镜筒的塑胶外筒一体成型，故可以避免普通镜筒采用塑胶材质时冷却收缩变形而导致镜筒的精密度不够的问题。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。