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公开(公告)号：US5003343A
公开(公告)日：1991-03-26
申请号：US473615
申请日：1990-02-01
CPC分类号： G03B21/118 , G03B21/62
摘要： A projection copying apparatus for reproducing microfilmed originals on a light-tightly disposable projection screen and for producing copies of microfilmed originals comprises means for copying of dot originals operating for complete or sectional copying of the originals, and a projection screen including a diffusing disc, an LCD dics arranged on the diffusing disc, the LCD disc being switchable between two conditions so that in one of the conditions it is transparent for observation of the originals and in the other of the conditions it is opaque for copying or searching.
摘要翻译： 一种投影复印装置，用于在轻巧一次性投影屏幕上再现微缩胶片原稿并用于制作微缩胶片原稿的副本，包括用于复印原稿的完整或部分复印的点号原稿的装置，以及包括扩散盘的投影屏幕， 液晶显示器布置在扩散盘上，LCD盘可以在两个条件之间切换，使得在其中一个条件下，它是透明的，用于观察原稿，而在另一个条件下，它对于复印或搜索是不透明的。
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公开(公告)号：US5249754A
公开(公告)日：1993-10-05
申请号：US874607
申请日：1992-04-27
申请人： Traugott Liermann , Franz Nadler , Jurgen Risser
发明人： Traugott Liermann , Franz Nadler , Jurgen Risser
CPC分类号： G03B1/58
摘要： For lifting and grasping a starting portion of a film located in a coil, the method includes driving a coil by a friction wheel abutting against an outer surface of the coil with an end edge of a starting portion of the coil located arbitrarily on the outer surface, placing a separating wedge under a prestress on the outer surface of the coil and lifting the starting portion of the film from the coil by an edge of the separating wedge, and first turning the coil against a latter uncoiling direction, and after a recognition of a position of the end edge of the starting portion of the film turning the coil in the uncoiling direction.
摘要翻译： 为了提升和抓住位于线圈中的胶片的起始部分，该方法包括通过与线圈的外表面邻接的摩擦轮来驱动线圈，线圈的起始部分的端缘任意地位于外表面上 将分离楔放置在线圈的外表面上的预应力处，并且通过分离楔的边缘将线圈的起始部分从线圈提起，并且首先使线圈反转回卷绕方向，并且在承认 胶片的起始部分的端边缘的位置使线圈在展开方向上转动。
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