It has a lens system to focus light onto the film at the back of the camera.
它的镜片系统可以将光线聚焦到相机后部的胶片上。
Waveguide to be fitted-the first acoustic lens system ever fitted to a Dual Concentric.
波导须安装-第一个声学透镜系统都安装在双同心。
The achromatic principle and its design method of two-grating lens system are presented.
介绍双光栅透镜系统的消色差原理和设计方法。
Imagine that we have some sort of Lens system which forms an image of an extended object.
设想我们有某种透镜系统，它对一个扩展物体成象。
The camera system contains not only the detector but also, and very importantly, a lens system.
摄像系统不仅仅包含一个照相机，而更重要的，有一个透镜系统。
One is prepared by overlapping two line-type zone plates. It acts as a two-cylindrical lens system.
另一种是一个线型波带板和一个圆型波带板的组合，效果相当于一个凸透镜和一个柱面透镜的组合。
In a physical lens system, the aperture is adjusted to limit the amount of light entering the system.
在物理镜头系统中，光圈调整光线进入系统的数量极限。
Theprocess of the bottle beam generated from an axicon-lens system is described by a novel method based on the ray-tracing.
利用几何光学的光线追迹法形象地描述了轴棱锥透镜系统产生局域空心光束过程。
It ACTS as a two-cylindrical lens system. The other is prepared by overlapping a line-type zone plate and a circular zone plate.
另一种是一个线型波带板和一个圆型波带板的组合，效果相当于一个凸透镜和一个柱面透镜的组合。
Even the simple trilobite has an eye (complete with its double lens system) that's considered an optical miracle by today's standards.
按照今天的标准，即使是简单的三叶虫，它的眼睛(完美的双镜头系统)也是一个光学奇迹。
In this paper, we stated the composition of the LENS system and analyzed the characteristics and application fields of the LENS technology.
本文介绍了激光近形制造系统的组成，分析了激光近形制造技术的特点和应用场合。
Conclusions Scanning laser angiography with a wide-field contact lens system has important application value in the diagnosis of choroidal melanoma.
结论广角激光扫描血管造影技术在脉络膜黑色素瘤诊断中有重要的应用价值。
The condenser is equipped with an iris diaphragm, a shutter controlled by a lever which is used to regulate the amount of light entering the lens system.
聚光镜装配有瞳孔膜，那是一个有贡杆控制的快门，用来调节进入镜头系统的光量。
As before, the laser package is hermetically sealed for reliable operation in adverse environments and the laser output is collimated using an internal lens system.
密封激光包在恶劣环境下可靠运行，激光输出采用内部透镜系统校准。
Finally, the aspheric lens system was processed by single point diamond turning techniques and its shaping ability was tested by the optical analyzing software.
最后，利用金刚石单点车削法加工该非球面光学系统，并利用光束分析软件对系统的整形效果进行了测试。
The stereo projector by polarized light include chiefly. the three parts: the objective lens system of the projection, the condensing system and a source of light.
偏光立体显示仪主要包括三部分，投影物镜系统、聚光系统、光源。
According to the requirements of resolution system, using CODE V software, completed a microscope lens system and adapter-optical design and conduct the simulation.
根据系统分辨率的要求，利用CODEV软件，完成系统中显微镜物镜和转接镜的光学设计，并进行了仿真。
In the present study, an aberration theory for both wide and narrow electron beams in a combined electromagnetic focusing spherical cathode lens system is discussed.
本文研究了对宽束和细束阴极透镜普遍适用的电磁复合聚焦球面阴极透镜的象差理论。
In this paper three-dimensional object field can be transformed into three-dimensional image field by the 4f Fourier lens system according to the theory and experiment.
本文从理论和实验上应用4F富里叶变换透镜系统，把三维物场转换为三维象场。
The eye-in-hand vision system is an important type of robotic vision system. In this paper an inverted-telephoto lens system which serves as eyes of robot is discussed .
手眼视觉系统是一类重要的机器人视觉系统，具体介绍了一个用于机器人手眼视觉系统中的手眼镜的光学设计。
The sharpness evaluation function of auto focus and search tactic was discussed based on the principle how blurred by the lens system in the chapter of the auto focus algorithms.
以镜头系统造成图像模糊的原理为基础，对常用的自动聚焦评价函数和搜索策略了进行论述。
The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system.
象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。
An all-electrostatic focusing and deflecting system characterized by simple lens system is introduced The new system is very useful in producing compact high-performance camera tubes.
介绍了一种采用只含有会聚场的单透镜的全静电聚焦和偏转系统，这种系统非常适用于制作小型高性能摄象管。
To study the structure of telecentric beam path for zoom lens system, the axial displacement equation for the stop was deduced, which keep the system telecentric in all zoom position.
进一步研究变焦距系统远心光路的结构特征，得出了使系统在整个变焦过程中都处于远心位置的光阑轴向位移方程。
In this paper, the specialized techniques of electron gun for large screen CPTs are discussed. The beam forming region, main lens, convergence lens system and dynamic focusing method are analyzed.
对近年来大屏幕彩色显像管电子枪专有技术进行了讨论，系统分析了电子束形成区、主透镜、会聚透镜系统及动态聚焦方式等。
One way to get the best of both worlds is to use GRDDL, a system for viewing XML through an RDF lens.
集两者之大成的方法之一就是使用GRDDL，一种通过RDF 的视角查看XML的系统。
A "gravitational lens" of this type could be powerful enough to map the continents and oceans of a planet in a distant star system.
这种“引力透镜”足以有力地描绘一个遥远星系中某个星球的大陆和海洋。
A lens is an optical system including two refracting surfaces.
一个透镜是包含两个折射面的光学系统。
A lens is an optical system including two refracting surfaces.
一个透镜是包含两个折射面的光学系统。
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