A portable electro-optical scanner for reading a target bar code having a
plurality of bar code elements. The portable scanner includes: a housing
supporting a scanning module and an optic system. The scanning module
electro-optically scans the target bar code with a scanning beam and
collects reflected light returning from the bar code. The scanning module
includes a beam source emitting a scanning beam, beam directing apparatus
causing the scanning beam to be repetitively scanned along a scanning
plane intersecting the target bar code and photodetector circuitry
receiving light from the target bar code. The optic system includes an
exit window, a light collection lens and a reflective surface. The
scanning beam passes through the exit window upon exiting the housing.
The light collection lens receives reflected light from the target bar
code and directing the reflected light toward a focal point. The focal
point lying on the scanning plane of the scanning beam. The reflective
surface is disposed between the light collection lens and the focal point
to redirect the reflected light passing through the light collection lens
toward the photodetector circuitry.