The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2004
Filed:
Mar. 17, 2000
Applicant:
Inventors:
Assignee:
Cognex Technology and Investment Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/188 ;
U.S. Cl.
CPC ...
G01N 2/188 ;
Abstract
An electronic component inspection equipment effective to prevent reflection of a virtual image in which among side walls of a vessel for accommodating an electronic component, an image pick-up direction to a first side wall is set in a direction of Brewster angle &PSgr;B of the first side wall, a first prism and a first polarized light beam splitter are disposed on the image pick-up direction, an image pick-up direction of a second side wall is set in a direction of Brewster angle &PSgr;B of the second side wall, and a second prism and a second polarized light beam splitter are disposed on the image pick-up direction.