Hand-held scanning device

摘要

The present invention is directed to a hand-held scanning device (10) which contacts an object to be scanned (54) only at substantially colinear points, e.g., via a roller (30). This configuration allows the scanning device (10) to scan very close to the edge of an object to be scanned (54) while remaining fully supported by the object (54). In order to counteract detrimental effects caused by tilting of the scanning device (54) during a scan, the scan region (52) of the scanning device (10) is located close to the roller (30), a relatively high f-number lens (48) is used and a widened illumination area (64) is employed. The scanning device (10) is also configured to provide for easy grasping by a user and to allow the user to view the scan region (52) during a scan. <IMAGE>