Printing – Printing members – Blanks and processes
Patent
1997-06-13
1999-08-10
Funk, Stephen R.
Printing
Printing members
Blanks and processes
347257, 347242, 347262, G03F 720
Patent
active
059341955
ABSTRACT:
A conveyor conveys first and second plates to an exposure station. First and second laser imagers mounted at the exposure station above the support generate first and second laser beams adapted to sweep over the first and second plates, respectively. A mechanism effects simultaneous relative movement between the first laser imager and the first plate and between the second laser imager and the second plate. A computer system receives source image data corresponding to first and second source images, which correspond to first and second print images to be formed on the first and second plates, respectively. The computer system generates a first set of electrical signals corresponding to the first source image which are provided to the first laser imager, and generates a second set of electrical signals corresponding to the second source image which are provided to the second laser imager. The laser imagers are responsive to the electrical signals to modulate the first and second laser beams in synchronization with the relative movement between the laser imagers and the plates. As a result, the first laser beam is adapted to expose certain portions of the first plate to the first beam to form the first print image on the first plate and the second laser beam is adapted to expose certain portions of the second plate to the second beam to form the second print image on the second plate.
REFERENCES:
patent: 4149798 (1979-04-01), McGowan et al.
patent: 4240119 (1980-12-01), Norton et al.
patent: 4312590 (1982-01-01), Harbaugh
patent: 4423955 (1984-01-01), Powers
patent: 5174205 (1992-12-01), Kline et al.
patent: 5255607 (1993-10-01), Nishiyama et al.
patent: 5341157 (1994-08-01), Campagna et al.
patent: 5345870 (1994-09-01), Bailey et al.
patent: 5351617 (1994-10-01), Williams et al.
patent: 5353705 (1994-10-01), Lewis et al.
patent: 5369468 (1994-11-01), Powers et al.
patent: 5434646 (1995-07-01), Talts
patent: 5459505 (1995-10-01), Ballegaard et al.
patent: 5550574 (1996-08-01), Dillow
Powers John W.
Rinke Ronald A.
Simonian Richard P.
Funk Stephen R.
Western Litho Plate & Supply Co.
LandOfFree
Apparatus for and method of exposing lithographic plates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for and method of exposing lithographic plates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for and method of exposing lithographic plates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1109104