A scanner for reading indicia having portions of differing light reflectivity has means for directing a light beam from the scanner towards the indicia and collecting reflected light returning from the indicia. The scanner includes a scanning arrangement with a scanner component, such as a mirror. First...http://www.google.es/patents/US5481099?utm_source=gb-gplus-sharePatente US5481099 - Scanning arrangement for the implementation of omni-directional scanning patterns over indicia
Scanning arrangement for the implementation of omni-directional scanning ...