Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Reexamination Certificate
2006-04-18
2006-04-18
Epps, Georgia (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
C250S559450, C250S559010
Reexamination Certificate
active
07030400
ABSTRACT:
An apparatus and method for web inspection utilize simultaneous capturing of reflected and transmitted light images for real-time merging of same. The reflected light and transmitted light image capturing systems are registered with each other in terms of the down-web and cross-web field being imaged. To allow for the simultaneous acquisition of reflected and transmitted light images, the imaged portion of the web is an unsupported span, and the web is tensioned to prevent sagging. The reflected light and transmitted light image capturing systems each include multiple cameras registered with each other in terms of down-web and cross-web imaging field, and the cameras for the transmitted light image capturing are aligned directly with the light source, which outputs light that is incident on the web at an angle.
REFERENCES:
patent: 5465155 (1995-11-01), Edgar
patent: 5533145 (1996-07-01), Shofner et al.
patent: 6084664 (2000-07-01), Matsumoto et al.
patent: 6157438 (2000-12-01), Kaus
patent: 6236429 (2001-05-01), Ho
patent: 6437312 (2002-08-01), Adler et al.
patent: 6531707 (2003-03-01), Favreau et al.
patent: 6747697 (2004-06-01), Lin et al.
patent: 2002/0018201 (2002-02-01), Young et al.
Errico Mario
Hammond William A.
Kerwawycz John P.
Rivera Nelson M.
Wisniewski Carl A.
Epps Georgia
Fay Sharpe Fagan Minnich & McKee LLP
Livedalen Brian
Xerox Corporation
LandOfFree
Real-time web inspection method and apparatus using combined... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Real-time web inspection method and apparatus using combined..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Real-time web inspection method and apparatus using combined... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3532843