Patent ID: 7204418
Filing Date: 2007-04-17
Classification: G06K

Abstract:
1. A reader for electro-optically reading indicia, comprising: a) a housing having a window past which relative motion between the window and the indicia is conducted during reading, the housing having a front wall for supporting the window, a rear wall spaced away from the front wall, and a base connected to the front and rear walls and operative for supporting the housing; b) a solid-state imager in the housing and including an array of image sensors for capturing light through the window from the indicia over a field of view during the reading; and c) a pulsed illuminator for illuminating the indicia with pulses of light of high intensity to make the indicia appear stationary to the imager during the reading, the illuminator including a first illumination subsystem exteriorly arranged on the front wall around the window, for illuminating indicia located in a far range of working distances remote from the window with a first light intensity during the reading, and a second illumination subsystem interiorly positioned within the housing adjacent the rear wall, for illuminating indicia located in a near range of working distances adjacent the window with a second light intensity less than the first light intensity during the reading, thereby uniformly illuminating the indicia over the near and far ranges.