The part of a television transmitting apparatus that receives the primary image on a light-sensitivecathode tube and transforms it into electrical impulses.
电视摄像机电视发射装置的一部分，其在光敏阴极管上接受原始图象，并将之转化为。
2
The tube consists of a light-sensitivecathode that emits electrons in proportion to the photons striking it.