Patent ID: 6382513
Filing Date: 2002-05-07
Classification: G06K

Abstract:
An optical scanner for reading indicia comprising:(a) a beam generator and scanner for producing a scanning light beam and directing said light beam toward an indicia to be read; (b) a light detector; and (c) a collection mirror for receiving reflected light, the collection mirror having at least first and second nonplanar segments of differing optical properties, each of the first and second segments having an optical curvature and being sized and positioned to serve primarily as a collection mirror for collecting light received from an indicia and directing it toward the light detector, and not primarily as a scanning mirror for directing the light beam toward the indicia, whereby said first segment reflects toward the detector light received from an indicia at a first working range from the scanner and said second segment reflects toward the detector light received from an indicia at a second, different, working range.