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能收集望远镜里微弱星光的大众投影电视机,说明其显象管内装有某种奇妙的装置,这种显象管必须能够保持真空。大众型投影电视机也象大多数投影电视机那样,采用三个管子——构成彩色电视的红、绿、蓝三种信号,各由一个管子发出。由于在显象管设计上新近的技术革新,这种能在电影式的屏幕上投射六英尺高电视图象的“投影电视”机,不久就会有很好的销路。这种新型的管子是由美国克洛斯电视机公司(America′s Kloss Video Corporation)研制的,它采用了为人们想象不到的简单工艺,以较
The public projection television, which collects the weak stars in the telescope, shows some marvelous device in its picture tube that must be kept under vacuum. Popular projection televisions, like most projection TVs, use three tubes - the red, green, and blue signals that make up a color television, each emitted by a tube. Due to the recent technological innovations in kinescope design, this “projection television” machine, which projects six-foot-high television images onto cinema screens, will soon have a very good market. Developed by America’s Kloss Video Corporation, this new type of tube incorporates simple processes that one could not imagine,