【摘要】 可视电话、可视门铃具有广阔的发展前景，其显像管电子枪属于关键部件。本文介绍了用于可视系统三电位短电子枪的特点，电子枪透镜结构和工作原理，以及电子透镜的结构设计。实验结果表明，电子枪的性能参数符合设计要求。更多还原

【Abstract】 The visible telephone and visible doorbell have wide application and bright prospects.The electron gun is one of the key components of the picture tube for visible systems.The characteristics of a three potential short electron gun applied in visible systems,the structure and operational principle of electron lens,and design for the structure of electron lens are studied in this paper.The experimental results indicate that the electrical properties of the electron gun can meet the design requirements.更多还原