“双重魔术灯”,通过在两幅图像之间产生溶解效果,或赋予图像三维感的装置,1858年,源自stereo-,在这里意指“立体物体”,可能基于stereoscope,加上拉丁化的希腊词optikon,是optikos的中性形式,意为“与视觉相关”(来自原始印欧语词根*okw-,意为“看”)。
The object of the reduplication is to permit the pictures shown to pass from one to the next by a sort of dissolving effect which is secured by alternate use of the two lenses, and at the same time to avoid the delay or the unpleasant sliding of the pictures across the field in view of the audience, but imperfectly avoidable when the simple magic lantern is used. [Century Dictionary]
这种重叠设计的目的是通过交替使用两组镜头,创造出图像之间的溶解效果,让观众看到图像从一幅平滑过渡到另一幅,同时避免观众看到图像在视野中滑动或停顿的不适感,这在使用简单魔术灯时难以完全避免。[世纪词典]