Abstract: Method of and system for reading bar code symbols using a hand-supportable laser scanning bar code symbol reading system supporting an improved level control over the length and intensity characteristics of laser scan lines projected onto scanned objects, at any instant in time, in a manner dependent the detected location, distance or range of the scanned object in the scanning field of the system during system operation. The system includes a laser scanning module that projects the laser scanning beam through a light transmission window, and across a laser scanning field in which an object is located, while the laser scanning beam is blanked out during the laser scanning cycle according to a laser source blanking function that is determined by the estimated distance, or data representative thereof.

Abstract: A method for manufacturing laser scanners is provided. Laser scanners are configured to drive their light-deflecting assemblies at a fixed drive frequency. By selecting for inclusion in the laser scanners only those light-deflecting assemblies that have resonant oscillation frequencies falling within a specified range, operation of the laser scanners remains within engineering tolerances even through extreme environmental changes. Moreover, the method results in laser scanner having greater unit-to-unit consistency during operation even in extreme environments.

Abstract: Method of and system for reading bar code symbols using a hand-supportable laser scanning bar code symbol reading system supporting an improved level control over the length and intensity characteristics of laser scan lines projected onto scanned objects, at any instant in time, in a manner dependent the detected location, distance or range of the scanned object in the scanning field of the system during system operation. The system includes a laser scanning module that projects the laser scanning beam through a light transmission window, and across a laser scanning field in which an object is located, while the laser scanning beam is blanked out during the laser scanning cycle according to a laser source blanking function that is determined by the estimated distance, or data representative thereof.

Abstract: The system includes a housing having a light transmission window and produces an extremely-elongated laser beam having an elongation ratio (ER) that is defined as greater than 4.5 for any point within the working range of the laser scanning bar code symbol reading system. A laser scanning mechanism is provided for scanning the extremely-elongated laser beam out the light transmission window and across a scanning field defined external to the housing, in which a bar code symbol is present for scanning by the extremely-elongated laser scanning beam.

Abstract: A laser scanning bar code symbol reading system for scanning and reading poor quality or damaged bar code symbols. The system includes a housing having a light transmission window; an extremely-elongated laser beam production module for producing an extremely-elongated laser beam having (i) a direction of propagation extending along a z reference direction, (ii) a height dimension being indicated by the y reference direction, and (iii) a width dimension being indicated by the x reference direction, where x, y and z directions are orthogonal to each other. Each extremely-elongated laser beam is characterized by an elongation ratio (ER) that is defined as Y/X>4.