Off-axis object detection system for a bar code scanner

Details Off-axis object detection system for a bar code scanner Off-axis object detection system for a bar code scanner

2005-04-26

2005-04-26

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S566000, C235S454000

Reexamination Certificate

active

06884993

ABSTRACT:
A scan module and an optical system such as for a bar code scanner wherein the optical system has an axis of outgoing (illumination) light offset from the axis of collected light, arranged to limit the dynamic range of the collected light and thus the dynamic range within which the bar code scanner detector and signal processor must function. Preferably, the outgoing axis and the collection lens axis are substantially parallel.

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