公开(公告)号：EP0729572B1

公开(公告)日：2004-04-21

申请号：EP94903631.3

申请日：1993-12-13

Applicant: PRESSCO TECHNOLOGY INC.

Inventor： COCHRAN, Don, W. ,  TRINER, James, E.

IPC: G01N21/86 ,  H04N7/18

CPC classification number: G01N21/8901 ,  G01N21/8806 ,  G01N21/8903 ,  G01N2021/8835 ,  G01N2021/8845 ,  G01N2021/8887 ,  G01N2201/0621 ,  H04N7/181 ,  H04N7/188

公开(公告)号：EP0777850A1

公开(公告)日：1997-06-11

申请号：EP95921336.0

申请日：1995-05-22

Applicant: PRESSCO TECHNOLOGY INC.

Inventor： GRAVES, Terry, L. ,  FEIN, Howard

IPC: G01B11 ,  G01N21

CPC classification number: G01N21/8806 ,  G01N21/90

Abstract: A system for illumination of discrete specimens in an optical inspection system (A) include an image acquisition system (C) and corresponding illumination system (B). A beam splitter (16) intercepts light from a light source (10) and communicates a portion of it to field lens (20). A field lens (20), in turn, communicates light to a specimen (24) disposed in a viewing area (22). Light reflected from the specimen (24) is communicated back through the field lenses (20), through the beam splitter (16) and ultimately to a video camera (34) from which a digitized image is obtained. In another embodiment, light reflected from the specimen (24) and propagated through the beam splitter (16) has communicated to a second beam splitter (30). Separated light therefrom is communicated to first and second video cameras (34, 36), thus allowing for imaging of separate portions of the specimen (24).