公开(公告)号：WO1990004773A1

公开(公告)日：1990-05-03

申请号：PCT/US1989004780

申请日：1989-10-26

Applicant: INEX-VISTECH TECHNOLOGIES INCORPORATED

Inventor： INEX-VISTECH TECHNOLOGIES INCORPORATED ,  NGUYEN, Cap, Van ,  FITZMORRIS, Tyce ,  ESPENHAHN, Eric ,  KLINE, Dale, W. ,  CHANG, Roger

IPC: G01N21/00

CPC classification number: G01N21/9054 ,  G01N21/8806 ,  G01N2021/8887 ,  G01N2201/102

Abstract: An article inspection system especially useful for containers (20) having threaded ends includes a video camera (30), digitizer and data processor (150) operable to analyze a video image collected through a lens system (40). The lens system (40) has several alternatives, in each case including a wide aspect object lens, wider than the end of the article being inspected, with a refracting and/or reflecting light ray path operable to produce a two dimensional image including both the end of the article and the sides of the article adjacent the end. The optics produce a distorted image in which the sides of the article appear folded upwardly into the two dimensional image such that a two dimensional data array adequately represents the image of the end and the adjacent sides.