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:
Jul. 16, 1991
Filed:
Mar. 01, 1990
Applicant:
Inventors:
Assignee:
Omron Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250572 ; 356394 ;
Abstract
Disclosed is a method of and apparatus for inspecting a printed circuit board (PCB) for the nature of its soldered parts comprising three ring-shaped light sources which project light of different hues, the highest light source being any hue other than red, to a part mounted on a PCB at different angles and heights from above, a camera to record the reflected images, and a procedure used to check the recorded patterns to determine if the soldering is acceptable.