ハイビジョン用撮像管における解像度決定要因の考察

概要

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In order to clarify design concepts of Hi-vision camera tubes with excellent resolution capability, predominant factors in deciding the resolution of Hi-vision pickup tubes have been investigated by manufacturing experimental 2/3-inch tubes and anaiyzing electron-optical properties. The results obtaind were as follows, (1) the lower the magnification of beam spot is, the higher the resolution capability is. (2) the resolution is limited by the beam bending and optical lenses. Particularly it was found that the beam bending tended to be ignored in conventional design concepts of camera tubes was concerned with the resolution capability in Hi-vision image format. As the result that the suppression of the beam bending was tried, the high resolutional camera tube could be realized for Hi-vision.
社団法人映像情報メディア学会の論文