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阅读了《外语电化教学》1988年第3期上刊登的《磁带录像机的类型、特点及其在教学中使用的选择》一文后,受到启发,特写成此文。摄像管是摄像机把所摄取的光像转变成电子信号的主要部件。尽管在CCD出现后近几年来一部分摄像机采用CCD来代替摄像管,但迄今为止,无论是广播级或专业级的摄像机中大部分仍然采用摄像管。而且,由于摄像管结构和制造工艺的不断更新,它的各种性能亦趋优化。可以预料,在今后一段时期内,摄像管在摄像技术中仍将被广泛采用。为此本文仅对常用摄像管的种类、特性和应用等方面的某些常识作些介绍。
After reading the article entitled “Types, Features and Their Use in Video Teaching” published in the Third Foreign Language Teaching of Foreign Language in 1988, they were inspired to make this essay. The camera tube is the main component of a camera that converts the light image it takes into electrical signals. Although some of the cameras used CCDs in lieu of camera tubes in recent years after the advent of CCDs, to date, the majority of video cameras have been used in broadcast or professional video cameras. Moreover, due to the camera tube structure and manufacturing process is constantly updated, its performance is also optimized. It is expected that camera tubes will still be widely adopted in camera technology in the coming period. To this end, this article only some commonly used camera tube type, characteristics and application of some common sense to make some introduction.