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。
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.
用来观察物体细节的简单目视光学器件，是焦距比眼的明视距离小得多的会聚透镜。
Used to observe the details of a simple visual objects, optical devices, is the focal length than the distance between eyes, as much out of the convergence lens.
用一厚的简单会聚透镜很容易观察色差。
It's an easy matter to observe chromatic aberrations, with a thick, simple converging lens.
厚透镜的会聚性和发散性与其厚度有何关系？
What is the relation between gathering and scattering of thick lens and its thickness?
会聚透镜使光线会聚于一点，即焦点。
A convex lens causes rays to converge on a single point, the focal point.
从薄透镜的焦距公式出发，讨论了各种透镜在不同介质中的会聚与发散性质。
From the focal distance formula of thin lens, the convergence and divergence nature of each kind of thin lens are discussed in different media.
至少有一个非球面透镜位于球面透镜和印刷版面之间，用于将激光聚焦或会聚到一个所需点上。
At least one aspherical lens is arranged between the spherical lens and the printing form, for focusing or converging the laser light onto a desired spot.
菲涅耳波带片可使入射光会聚起来，产生极大的光强，使点光源形成一系列的实像点和虚像点，其作用如同透镜成像。
Fresnel's plate can focus incident rays producing very strong brightness the function of which resembles lens forming images.
对各种LED光源和光学会聚系统进行了对比测试，并对其聚光性能进行了分析，设计了一种全内反射透镜（TIR透镜）结构。
This paper comparably tests different LED light source and optical convergence system, analyzes the condensing performance and designs the structure of TIR lens.
用一辅助凸透镜与一测微目镜进行平行光束的会聚，测出准直管玻罗板线对在辅助凸透镜焦平面上所成像的大小；
Then using another convex lens and a micrometer eyepiece the altered parallel rays is focused, and the imaging size of line pair of collimator imaged on the another convex lens is measured.
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。
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.
针对将大发散角LED的光高效会聚到光纤接收端面的需求，提出了一种椭球面和聚光透镜组合光学系统设计的思路。
With large divergence Angle LED light efficiently converges at the optical fiber receiving end demand, an ellipsoid and focusing lens combination optical system design method is proposed.
凸透镜中心部分比周围要厚，它使光线会聚。
A convex lens is thicker at its center than its periphery. It causes rays to converge.
由数个照明单元加上会聚透镜则构成一个基本的照明系统。
Several such lighting units make a basic lighting system of projector.
会聚透镜使光线会聚于一点，即焦点。
为适应该项研究的需要，设计了会聚透镜与光纤耦合器的距离可以精确调节的耦合系统。
In this paper we report a laser fiber couple system, by which the output power from the fiber tip can be adjusted according to the requirement of the actual investigation.
为适应该项研究的需要，设计了会聚透镜与光纤耦合器的距离可以精确调节的耦合系统。
In this paper we report a laser fiber couple system, by which the output power from the fiber tip can be adjusted according to the requirement of the actual investigation.
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