APPARATUS FOR AND METHOD OF ALIGNING NON-ROTATIONALLY SYMMETRICAL IMAGING LENS APERTURE WITH AN IMAGING SENSOR IN AN IMAGING READER

摘要

An apparatus and method for imaging a target, includes a housing having a presentation area, a solid-state imaging sensor having an imaging array of image sensors looking at a field of view that extends through the presentation area to the target, and an imaging lens assembly for capturing return light over the field of view from the target through the presentation area, and for projecting the captured return light onto the imaging array during imaging of the target. The assembly has a plurality of lenses, an aperture stop, and a holder for holding the lenses and the aperture stop in spaced relation along an optical axis. The aperture stop has a non-rotationally symmetrical aperture through which the optical axis extends. Alignment elements on the imaging lens assembly are used to align the non-rotationally symmetrical aperture with the imaging array.