Multiple range indicia reader with single trigger actuation

摘要

A method of operating an indicia reader for reading information bearing indicia (IBI): transmitting a first laser light beam on a target located a first distance from the indicia reader; transmitting a second laser light beam on a target located a second distance beam; scanning at least one of the laser light beams with a flat unitary scan mirror to generate at least one of a first and a second laser light beam pattern; directing light reflected from the target with a flat unitary scan mirror onto a focusing mirror; the focusing mirror directing reflected light on an optical filter outputting directed reflected light; converting the directed reflected light into an output signal with a photodetector; decoding information derived from the output signal.