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1. 发明授权

US4601559A Slide projector and slide tray 失效
标题翻译：滑动投影机和滑动托盘
公开(公告)号：US4601559A
公开(公告)日：1986-07-22
申请号：US573388
申请日：1984-01-24
申请人： Eckhart Oehmichen , Alf K. Neustadt
发明人： Eckhart Oehmichen , Alf K. Neustadt
IPC分类号： G03B23/04 , G03B23/14 , G03B23/02
CPC分类号： G03B23/044 , G03B23/14
摘要： The slide projector (4) for single-slide, lap-dissolve or stereo projection, which works on the gravity feed principle, is designed for operation with linear slide trays (1, 2) divided into compartments. At the top, it has either two receptacles for slide-tray covers (2, 5) or one receptacle (4g) and one cover (4h) integral with the housing of the projector. When being placed on the projector, the slide tray is automatically unlocked, so that the housing of the tray becomes shiftable. Switching means ensure that the projector cannot operate until the slide tray is properly positioned. The projector also has a variable electronic light intensity control facility. It initiates no projection when a tray compartment is empty.The slide tray (1, 2) is so designed that slides are loaded into the housing (1) of the tray from above in an upright and laterally correct image position; the housing (1) is then closed with the cover (2). During projection, the cover forms the bottom of the slide tray.
摘要翻译：适用于重力进给原理的单滑块，搭接式或立体声投影机的幻灯机（4）设计用于分为隔间的直线滑动托盘（1,2）。在顶部，它有两个用于滑动托盘盖（2,5）或一个插座（4g）的插座和一个与投影机壳体一体的盖子（4h）。当放置在投影机上时，滑动托盘自动解锁，使得托盘的外壳可以移动。切换装置确保投影机在滑块正确定位之前无法操作。投影机还具有可变电子光强度控制设备。当托盘舱是空的时，它不会启动投影。滑动托盘（1,2）被设计成使得滑块从上方以直立和横向正确的图像位置装载到托盘的壳体（1）中; 然后用盖（2）关闭壳体（1）。在投影期间，盖子形成滑动托盘的底部。

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