首页> 外国专利> Projection apparatus for photographic transparencies and a device apparatus for storing transparencies to be projected with the apparatus

Projection apparatus for photographic transparencies and a device apparatus for storing transparencies to be projected with the apparatus

机译:用于照相透明胶片的投影设备和用于存储要用该设备投影的透明胶片的设备设备

摘要

The subject matter of the invention is constituted by a projection apparatus for the projection of transparencies on to a screen. The transparencies are articulated together. One at a time the rows of transparencies are located between a light source and a lens, same being moved along the row of transparencies in order to project the transparencies in order on the screen. When the transparencies of one row have been projected, the chain is moved through one step in order to place the next row of transparencies in place of the former one in between the light source and the lens. The invention furthermore relates to a particularly convenient design by which a number of transparency rows may be chained together with articulating joints therebetween.
机译:本发明的主题由一种投影设备构成,用于将透明胶片投影到屏幕上。透明胶片连接在一起。一次将一排透明胶片定位在光源和透镜之间,使它们沿着一排透明胶片移动,以便将透明胶片按顺序投影在屏幕上。当已经投影了一行透明胶片时,将链条移动一步,以便将下一行透明胶片放置在光源和透镜之间,以代替前一行透明胶片。本发明还涉及一种特别方便的设计,通过该设计,可以将许多透明行与它们之间的铰接连接在一起。

著录项

  • 公开/公告号US4650303A

    专利类型

  • 公开/公告日1987-03-17

    原文格式PDF

  • 申请/专利权人 DRWIEGA;BOHDAN;

    申请/专利号US19850708960

  • 发明设计人 BOHDAN DRWIEGA;

    申请日1985-02-22

  • 分类号G03B23/10;G03B21/00;

  • 国家 US

  • 入库时间 2022-08-22 07:09:31

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