Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1997-12-09
2000-10-17
Le, N.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347241, 347244, 359205, 359206, G02B 2608
Patent
active
061339350
ABSTRACT:
An optical scanning apparatus in which the luminous flux emitted from a light source is deflected by a deflecting device and formed by an optical device into a spot-shaped image on a plane to be scanned. The optical device has first and second toric lenses. The first toric lens has both lens surfaces formed into aspherical shapes in the main scanning cross section and has a meniscus shape in which a concave surface faces the deflecting device in the vicinity of the center of scanning and which provides a positive refractive power. The second toric lens has both lens surfaces formed into aspherical shapes in the main scanning cross section and has a meniscus shape in which a convex surface faces the deflecting device in the vicinity of the center of scanning and which provides a positive refractive power. Sections of the toric lenses perpendicular to a generating line in a sub-scanning cross section both have meniscus shapes which provide concave surfaces facing the deflecting device and which provide a positive refractive power.
REFERENCES:
patent: 5111219 (1992-05-01), Makino
patent: 5828401 (1998-10-01), Shiraishi
Fujibayashi Kazuo
Hoshi Koji
Ishibe Yoshihiro
Kato Manabu
Canon Kabushiki Kaisha
Le N.
Pham Hai C.
LandOfFree
Optical scanning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical scanning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical scanning apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-474100