The limitations of this scheme became quite apparent with the introduction of detectors such as the plumbicon, image orthicon and vidicon.
这个方法的局限性在引进诸如氧化铅光导管摄像管，超正析象和光导摄像管之类的探测器之后变得很明显。
2
In this paper, we describe the conception of orthicon, orthogonal function set and completion of orthogonal function set conception and compared to them.