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15 patients of daily soft contact lens wearers and 11 control subjects who had never worn contact lens, were examined by laser confocal microscopy, compare the results of two groups.

方法用激光共焦显微镜对长期佩戴角膜软性接触镜的15例患者进行检查，并选择未戴角膜接触镜者11例进行对照，对两组结果进行比较。

A new type fiber coupling system is designed,which consists of four parts:large aperture lens,1/4 pitch grin lens,taper fiber and step optical fiber with spherical end surface.

设计了一种新型的耦合系统，该耦合系统由大口径聚焦透镜、1/4节距自聚焦透镜、锥形光纤和球端光纤四部分组成。

In summary, we used the following tools during this study: 183 degree fish-eye lens, the rotation tripod which takes the lens as the center of rotation and the self-developed software which can transform the fish eye image to the spherical panorama images. The whole spherical panorama images can then be created seamlessly and conveniently for the real estate usage on the Internet and some case studies are shown in this thesis.

总而言之，使用183度鱼眼广角镜头、以镜头为旋转中心的定位云台和将广角影像转换成球形全景影像的制作软体，就可以方便地将某空间各角度的影像撷取至球形全景影像，完整的制作过程可以变得相当简易及平顺，并且基於本研究所制作的房地产实例也证实了本研究的实用性。

In recent years, the aspheric lens is widely used because of its superiority to the spherical lens, but the manufacture and inspection is much more difficult.

由于非球面镜在性能上大大优于球面镜，近年来得到了广泛的应用，但非球面的加工和检验要比球面镜困难得多。

There is an aberration Δφ between the phase retardation of the thermal lens and referenced spherical lens.

在rwp时，ΔΦT相对于参考球面透镜的相位畸变Δφ随r的增大而急剧增大。

The present invention pertains to a lens system for a laser for illustrating a printing form with at least one spherical lens.

本发明涉及用于激光器的一种透镜系统，用于利用至少一个球面透镜，图形显示一个印刷版面。

Undertake major customers to sample processing, in accordance with customer requirements to design, manufacture, main products have various types of 2mm-250mm spherical mirror, flat lens, digital color TV projection lens, high precision and all kinds of lenses, such as a prism.

主要承接客户的来样加工，根据客户要求进行设计、制造，主要产品有2mm-250mm的各类球面镜、平面透镜、数码彩电背投镜、高精密棱镜及各类镜片等。

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

设计了四片非球面组成的离轴式反射系统，然而，仅采用非球面设计系统结构不够精简，性能也有待进一步提高，且非球面面形较大时加工和检测都存在一定的困难；继而提出了用球面Fresnel反射镜代替非球面的设计方法，虽然Fresnel反射镜加工和检测更为简单，且复制成本低，但对波长具有选择性；进而，应用折反系统结合的方式设计了离轴式投影镜头，该方法因兼具折射和反射的优点，在大屏幕超薄背投系统的设计中广为应用，缺点是会产生难以校正的色差，且结构复杂。

For metal lens, we analyze the characteristics of imaging in the same way with left-handed lens, we separate the metal imaging system into to part : symmetric and asymmetric structure.

此外在金属成像的部份，我们利用同样的方法来探讨金属透镜的成像特性，并将金属成像系统分为对称结构与非对称结构分别来讨论。

Telocentric lenses work with a wide depth of field. With a telocentric lens, you can image objects of different distances from the lens and the objects stay in focus.

具端着丝粒的镜头(注：我猜是类似于针孔镜头吧)具有宽阔之景深，以具端着丝粒的镜头，你能够将由镜头不同距离之目标物成像和保持目标物在焦。

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