IMAGING MODULE AND READER FOR, AND METHOD OF, READING A TARGET OVER A FIELD OF VIEW BY IMAGE CAPTURE WITH A VISUALLY PROMINENT INDICATOR OF A CENTER ZONE OF THE FIELD OF VIEW

摘要

An imaging sensor of an imaging reader senses return light from atarget to be read by image capture along an imaging axis over a field of viewthatextends along mutually orthogonal, horizontal and vertical axes. Two aiminglightassemblies are offset from the sensor, and direct an aiming light pattern atthe target.The pattern has an aiming mark in a central area of the pattern, and a pair ofaiminglight lines that are collinear along the horizontal axis. The visibility ofthe aimingmark is enhanced by optically configuring the aiming mark to be different inbrightness relative to a remaining area of the pattern by speciallyconfiguring aiminglenses with regions of different optical power to form each aiming light lineof non-uniformbrightness. The aiming mark of enhanced visibility constitutes a prominentvisual indicator of a center zone of the field of view.