Patent ID: 8079526
Filing Date: 2011-12-20
Classification: G06K

Abstract:
1. An imaging module for electro-optically reading one-dimensional symbols located at variable working distances from the module, comprising: an illuminator for illuminating the symbols, including a light source for emitting illumination light, and an optical element for modifying the illumination light to form a line of high intensity light across the symbols; a solid-state imager having a linear array of image sensors arranged in a single row for capturing return light from the symbols; an imaging lens assembly for adjustably focusing the return light onto the linear array of image sensors to enable the symbols to be read, wherein the imaging lens assembly including a variable focal lengths lens is configured to focus the line of high intensity light across the symbols onto the linear array of image sensors; and wherein the linear array has on the order of at least 1,500 of the image sensors arranged in the single row.