公开(公告)号：US5196950A

公开(公告)日：1993-03-23

申请号：US387016

申请日：1989-07-31

申请人： Shinobu Fukoka ,  Takeshi Kamada

发明人： Shinobu Fukoka ,  Takeshi Kamada

IPC分类号： H04N1/04

CPC分类号： H04N1/04

摘要： An optical reader includes a transport mechanism for transporting a document in a document transport direction. The transport mechanism includes a lower guide plate and an upper guide plate opposite to the lower guide plate so as to form a gap through which the document is transported. The lower guide plate has an opening window. A light source obliquely projects light along a projection optical axis onto the document through the opening window. A read element receives light reflected by the document and outputting an electrical signal corresponding to the received light. The read element has a read optical axis along which the light reflected by the document comes. The read optical axis and the projection optical axis intersect on the side of the upper guide plate outside of the gap.

摘要翻译： 光学读取器包括用于在文件传送方向上传送文件的传送机构。 传送机构包括下引导板和与下引导板相对的上引导板，以形成传送文件的间隙。 下导板具有开口窗。 光源通过打开窗口将光沿着投影光轴倾斜地投射到文档上。 读取元件接收由文档反射的光并输出与​​所接收的光对应的电信号。 读取元件具有读取的光轴，由该文档反射的光到达该光轴。 读取的光轴和投影光轴在间隙的外侧的上导板的一侧相交。