Patent ID: 8430314
Filing Date: 2013-04-30
Classification: G02B,G06K

Abstract:
1. A reader for imaging a target, comprising: a housing having a presentation area; a solid-state imaging sensor supported by the housing and including an imaging array of image sensors looking at a field of view that extends through the presentation area to the target; an imaging lens assembly supported by the housing, for capturing return light over the field of view from the target through the presentation area, and for projecting the captured return light onto imaging array during imaging of the target, the assembly including 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 having a non-rotationally symmetrical aperture through which the optical axis extends, and alignment elements on the imaging lens assembly for aligning the non-rotationally symmetrical aperture with the imaging array; and wherein the alignment elements include a keying element for keying the aperture stop to be fixed in a predetermined keyed position within the holder, and a turning element for turning the holder about the optical axis to be aligned in an aligned position relative to the imaging array.