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两年前刚被介绍到美国的硒砷碲光导摄象管(即用掺碲和砷的硒光导体的摄象管)是用来在小型摄象机中代替18毫米氧化铅管的,而目前在新的小型摄象机中,生产厂家和使用者都把硒砷碲管规定为主要的管型了。此外,凡设计来体现小型摄象管的优异性能的演播室摄象机和节目制作摄象机中,几乎毫无例外地都采用了18毫米硒砷碲管。25毫米硒砷碲管在新型电视电影摄象机中占据了多一半的市场。它在残象和分解力方面的优异性能使它成为硫化锑和氧化铅摄象管的引人注目的代替者。许多使用现有电视电影摄象机的用户,当他们碰到高反差影片引起的残象问题时,也转而改用硒砷碲管。
The selenium-arsenide telluride phototool introduced just two years ago in the United States (that is, a phototube made of a selenium-doped light conductor of tellurium and arsenic) was used to replace the 18-mm lead oxide tube in a small camera At present, in the new small video cameras, selenium, arsenic and tellurium tubes are specified as the main tube type by manufacturers and users. In addition, 18mm selenium arsenide tubes have been used almost without exception in studio cameras and program production cameras designed to demonstrate the superior performance of small video tubes. The 25mm selenium-arsenide tube occupies more than half of the market for new telecine cameras. Its superior performance in afterimage and resolution makes it an attractive replacement for antimony sulfide and lead oxide video tubes. Many users of existing telecine cameras turned to selenium, arsenic and tellurium tubes when they encountered the afterimage caused by high-contrast films.