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菲利浦Gloeilampenfabrieken提出了一种相对价廉、彩色的电视投映系统。它在法国的LEP(电子及应用物理实验室)表演了一个彩色电视系统,投映的光通量为足够电影用的2500流明。 LEP声称其新产品售价只为“菲利浦油膜光阀”售价(80,000元美金)的三分之一。下一步产品将用一种有铁电晶体层的Titus管来调制投映光,而取代油膜光阀技术。 对彩色电视系统,LEP用三个Titus管来调制4.5KW Xe灯的光,对黑白系统就只用一个管子及2.5KW的灯。输入的光通过一个方解石偏振
Philip Gloeilampenfabrieken presents a relatively inexpensive, color television projection system. It performed a color television system at LEP (Electronic and Applied Physics Laboratory) in France, projecting a projected luminous flux of 2500 lumens for a movie. LEP claims that the price of its new product is only one-third the price of the “Philips Film Light Valve” (US $ 80,000). The next step will be to replace the film light valve technology with a Titus tube with a ferroelectric layer to modulate the projected light. For color television systems, LEP uses three Titus tubes to modulate 4.5KW Xe lamps, and uses only one tube and a 2.5KW lamp for black and white systems. The input light is polarized by a calcite