Patent ID: 9740903
Date: 2017-08-22
CPC Classifications: G02B,G06K

Claim:
1. An imaging module for illuminating a target to be read by image capture, comprising: an illumination light source for emitting illumination light toward the target for reflection and scattering therefrom; an imaging assembly having a two-dimensional array of image sensors for capturing the illumination light returning from the target along an imaging axis over a field of view that extends along first and second extents along mutually orthogonal, first and second directions that are generally perpendicular to the imaging axis; and a compound parabolic reflector for receiving, and for optically modifying, the illumination light emitted from the illumination light source to generate a generally uniform illumination light pattern that is substantially congruent to, and substantially overlaps, the field of view along both of the first and second directions, the compound parabolic reflector having a first pair of parabolic segments for reflecting the emitted illumination light over a first illumination angle along the first direction, and a second pair of parabolic segments for reflecting the emitted illumination light over a second illumination angle along the second direction.