论文部分内容阅读
本文共分四部份:一、研究摄象管静电聚焦系统的必要性。除列表指出其小而轻的优点之外,还以日本78年该种产品占摄象管总产量的65％来说明摄象机正在向小型化和轻便化方向发展;二、静电聚焦系统的计算方案与程序——采用不等距网格的差分公式求解拉氏方程,用傍轴方程计算电子轨迹γ_α和γ_β,利用沈庆垓教授等人编制的摄象管发射系统程序的计算结果,以工作状态下的交叉点位置作为物点,由此出发一直连续计算到靶面。用斜出轨迹γ_α的交轴点确定象面位置,用平行轨迹γ_β确定放大率,同时求出焦点、主点和焦距;三、利用上述程序计算了两种典型结构,均为国外大量生产的2/3英寸静电聚焦摄象管;四、此外,本文还根据电子光学原理
This article is divided into four parts: First, the study of the need for electrostatic focusing tube camera system. In addition to the list indicating its small and light advantages, but also in Japan 78 years of this kind of products accounted for 65% of total tube production to illustrate the camera is the direction of miniaturization and lightweight; Second, electrostatic focus system Calculation programs and procedures - The inequality grid is used to solve the Lagrange equations by using the difference formula. The electron trajectories γ_α and γ_β are calculated by using the paraxial equation. Using the calculation results of the imaging tube emission system program prepared by Professor Shen Qingli and others, State of the intersection point as the object point, which has been continuously calculated to the target surface. The position of the image plane is determined by the intersecting point of the inclined track γ_α and the magnification is determined by the parallel track γ_β. At the same time, the focal point, main point and focal length are obtained. Third, two typical structures are calculated by the above program, 2/3 inch electrostatic focus camera tube; Fourth, in addition, this article is also based on the principle of electronic optics