Refractive lens array for scanner application that reduces lateral tolerance sensitivity

摘要

A low cost single lens array for use in an automatic optical inspection system, so as to reduce parallax, cross talk, and sensitivity to lateral fabrication errors, and a method for stitching together image segments formed by the array. The lens array comprises a plurality of tube-like baffles, within which are disposed single lens sets and linear image sensors. These baffles are typically arranged to provide de-magnified and inverted image segments that are stitched together to provide the entire image of the surface object.