Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Reexamination Certificate
2006-06-06
2006-06-06
Pyo, Kevin (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
C250S227310, C101S486000, C347S262000
Reexamination Certificate
active
07057196
ABSTRACT:
A device and a method for detecting the edge of a recording material, in particular, a printing plate, in an exposer for recording printing originals includes an exposer having an exposure drum holding the plate, and an exposure head moved axially along the drum and focusing exposure beams onto the plate. An optical fiber is let into the drum surface and an illuminating device, moved axially along the drum, radiates light radially into the fiber. A photodetector at the fiber receives the light radiated therein. Covering the light radiated in with the plate is used to detect the plate edge. Counting cycles of a feed drive moving the illuminating device determines an axial position of the edge. Alternatively, light of a light source is radiated axially into the fiber and the light emitted radially by the fiber is received using an optical detector moved by the feed drive.
REFERENCES:
patent: 5220177 (1993-06-01), Harris
patent: 6815702 (2004-11-01), Kiermeier et al.
patent: 6915743 (2005-07-01), Blohdorn et al.
patent: 2004/0231543 (2004-11-01), Smythies et al.
patent: 42 39 086 (1994-05-01), None
patent: 42 40 804 (1994-06-01), None
patent: 101 36 874 (2003-02-01), None
patent: 0 015 553 (1980-09-01), None
patent: 1 081 458 (2001-03-01), None
Fischer Jörg-Achim
Gebhardt Axel
Greenberg Laurence A.
Heidelberger Druckmaschinen Aktiengesellschaft
Locher Ralph E.
Pyo Kevin
Stemer Werner H.
LandOfFree
Device and method for detecting the edge of a recording... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for detecting the edge of a recording..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for detecting the edge of a recording... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3704036