电影院幕布的购置基本都是选用宽银幕幕布并能兼顾普通、遮幅影片的放映，幕布生产厂家则参照国家ＪＢ２２２－７８《电影银幕》标准中所规定的幕面标准尺寸制造。本文探讨的就是宽银幕幕布标准尺寸与普通遮幅式放映画面尺寸之间的差异及将宽银幕幕面宽、高度稍做改动以获取普 The purchase of cinema screens are basically the choice of widescreen screen curtains and can take into account the normal, the coverage of the film screenings, curtain manufacturers refer to the national standard JB222-78 “movie screen” standard screen to create the standard dimensions. This article explores the difference between the standard screen size of a widescreen screen and the size of a normal screening screen and changes the size of the wide screen screen slightly to make it slightly wider