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:
Sep. 15, 2009
Filed:
Jul. 14, 2004
Applicants:
Patrick Simpkins, Edina, MN (US);
Cory Watkins, Chanhassen, MN (US);
Inventors:
Patrick Simpkins, Edina, MN (US);
Cory Watkins, Chanhassen, MN (US);
Assignee:
Rudolph Technologies, Inc., Flanders, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/18 (2006.01); H04N 5/222 (2006.01); H04N 5/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
An inspection tool includes a camera having a gain value and an offset value set to provide a first camera output indicating a first desired average gray value when the camera is illuminated with a precision light source set at a first light level. The inspection tool includes an inspection light source configured to be set at a second light level such that when the inspection light source illuminates a known target, the camera provides a second output indicating a second desired average gray value.