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1. 发明授权

US4401368A Projecting screen for optical purposes 失效
标题翻译：光学用投影屏
公开(公告)号：US4401368A
公开(公告)日：1983-08-30
申请号：US309659
申请日：1981-10-08
申请人： Ludwig Drechsel , Margarete Lasch
发明人： Ludwig Drechsel , Margarete Lasch
IPC分类号： G03B21/608 , G03B21/60
CPC分类号： G03B21/608
摘要： A projecting screen for optical purposes which meets the stringent requirements for the reproduction of macroscopic as well as microscopic images in transmission operation. The object comprises providing a projection screen comprising several scattering media movable in relation to each other, by which projected images may be reproduced free of grain- and flickering- or scintillation effects, under simultaneous improvement of the resolution and the transmission qualities. The substance of the invention comprises a projecting screen in which two solid inorganic or organic media are movably assembled in relation to each other, of which one or both may be light-scattering because of surface roughness on one side, and a liquid flowing between these two means which may or may not have a scattering effect. This invention is of multiple use in the construction of scientific instruments.
摘要翻译：用于光学目的的投影屏幕，其满足在传输操作中宏观和显微图像的再现的严格要求。该目的包括提供一个投影屏幕，该投影屏幕包括可相对于彼此移动的多个散射介质，通过该投影屏幕可以在分辨率和传输质量的同时提高的情况下，再现没有纹理和闪烁或闪烁效应的投影图像。本发明的物质包括一个投影屏幕，其中两个固体无机或有机介质相对于彼此可移动地组装，其中一个或两个可能由于一侧的表面粗糙度而发生光散射，并且在这些介质之间流动的液体两种可能具有或不具有散射效应的方法。本发明在科学仪器的建设中有多重用途。

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