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公开(公告)号:US3752558A
公开(公告)日:1973-08-14
申请号:US3752558D
申请日:1971-06-28
Applicant: DECISION CONSULTANTS
Inventor: LLOYD L
CPC classification number: H04N1/0411 , G06K9/2009 , H04N1/0414 , H04N1/0443 , H04N1/0455 , H04N1/047 , H04N1/1013 , H04N1/1026 , H04N1/1056 , H04N1/1135 , H04N2201/02416 , H04N2201/02439 , H04N2201/0471 , H04N2201/04727 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04746 , H04N2201/04755 , H04N2201/04791 , H04N2201/04794
Abstract: A 90* reflector scans a flat document to reflect an image of part of the document into a plane parallel to the document. Then a 180* reflector reflects the image back toward a detection station. A transport made of a cable and pulleys moves the 180* reflector at one-half the speed of the 90* reflector so that the optical distance between the detection station and the document remains constant throughout the scan.
Abstract translation: 90°反射器扫描平面文档以将文档的一部分的图像反射到与文档平行的平面中。 然后180°反射镜将图像反射回检测站。 由电缆和皮带轮制成的传送器将180度反射镜以90度反射镜的一半速度移动,使得检测台和文档之间的光学距离在整个扫描过程中保持不变。