Patent ID: 8152069

Claim:
A dual focus optical imaging scanner system having two different focal points along a working range, for reading near and far symbology images of a symbology target along said working range, said dual focus optical imaging scanner system comprising: a first light source producing a first discrete wavelength of light for illuminating a symbology target; a second light source producing a second discrete wavelength of light for illuminating the symbology target; a lens assembly for collecting a combined reflected image of the illuminated symbology target comprising the first and second discrete wavelengths of light; a color separation filter positioned to receive the combined reflected image of the symbology target collected by the lens assembly, wherein said color seperation filter is operative to produce a first symbology image comprising the first discrete wavelength of light and a separate second symbology image comprising the second discrete wavelength of light; a first image sensor for receiving the first symbology image comprising the first wavelength of light from the filter and having an associated first focal point; and a second image sensor for receiving the second symbology image comprising the second wavelength of light from the filter and having an associated second focal point different than the first focal point; wherein the two different focal points along said working range enable the capturing of near and far symbology images of said symbology target along said working range.