Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2005-11-01
2005-11-01
Pham, Hai (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
Reexamination Certificate
active
06961077
ABSTRACT:
A multibeam light source for use in information recording, including a semiconductor laser array provided with a plurality of light emitting points in a single package, in which the plurality of light emitting points are positioned in linear relationship to one another and have an equidistant pitch so as to respectively emit laser beams to be simultaneously scanned over a recording substrate. The position of the semiconductor laser array is adjustable so as to satisfy the relation θ≦tan−1{1/(n−1)}, where the angle θ is defined by two straight lines, the one drawn perpendicular to the primary scanning direction on an image recording substrate and the other drawn through respective centers of the first and n-th laser beam spots formed on the image recording substrate by projecting laser beams emitted respectively from the plurality of light emitting points. As a result, increases in the speed and the density of the information recording are achieved through the formation of suitable laser beam diameters on the recording substrates. Also, excellent recorded images are achieved without visually recognized phase differences between laser beam spots.
REFERENCES:
patent: 5305022 (1994-04-01), Ota et al.
patent: 5745152 (1998-04-01), Vincent et al.
patent: 5758950 (1998-06-01), Naoe et al.
patent: 5999345 (1999-12-01), Nakajima et al.
patent: 6133566 (2000-10-01), Yamaguchi
patent: 6144685 (2000-11-01), Iwasa et al.
patent: 6222611 (2001-04-01), Asada
patent: 6232999 (2001-05-01), Kerr et al.
patent: 6268877 (2001-07-01), Sato et al.
patent: 56-042248 (1981-04-01), None
patent: 08-136841 (1996-05-01), None
patent: 09-001861 (1997-01-01), None
patent: 09-026550 (1997-01-01), None
patent: 09-211350 (1997-08-01), None
patent: 9-236763 (1997-09-01), None
patent: 09-251137 (1997-09-01), None
patent: 10-039241 (1998-02-01), None
patent: 11230858 (1999-08-01), None
U.S. Appl. No. 09/725,756, filed Nov. 30, 2000, Makino.
U.S. Appl. No. 10/631,829, filed Aug. 1, 2003, Makino.
U.S. Appl. No. 10/756,355, filed Jan. 14, 2004, Makino.
Pham Hai
Ricoh & Company, Ltd.
LandOfFree
Multibeam light source does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multibeam light source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multibeam light source will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3496531