Scanning module for single line and raster scanning using dual lasers

摘要

A retroreflective optical scan module, including first and second selectable light sources having different beam characteristics for directing a selected light beam to a symbol to be read, an optical assembly including a light collecting portion which collects and redirects the light reflected from the symbol along an optical path to a sensor, and a selector for selecting which light source to use depending on whether a one-dimensional or a two-dimensional symbol is being scanned.