Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-05-10
1999-03-16
Spyrou, Cassandra
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359204, 359206, 359662, 347244, 347259, G02B 2608
Patent
active
058837329
ABSTRACT:
To provide an optical scanner for typical use with laser beam printers that is capable of effective correction of aberrational characteristics and which also produces a constant beam spot size, a semiconductor laser array 1 having a plurality of light-emitting portions issues a plurality of beams, which are reflected and deflected by reflecting surfaces of rotating polygonal mirror 5 and pass through imaging lens 6 to form a plurality of beam spots on the surface to be scanned 7. Both the entrance and exit surfaces of imaging lens 6 are such that the curvatures in the sub- and main scanning directions are independent of each other, with the curvature in the sub-scanning direction varying continuously in the main scanning direction over the effective area of imaging lens 6.
REFERENCES:
patent: 4253102 (1981-02-01), Kataoka et al.
patent: 4352541 (1982-10-01), Minoura et al.
patent: 4561717 (1985-12-01), Kataoka et al.
patent: 4585296 (1986-04-01), Minoura et al.
patent: 4731623 (1988-03-01), Oda et al.
patent: 4847644 (1989-07-01), Oda et al.
patent: 4866459 (1989-09-01), Tokita et al.
patent: 4934772 (1990-06-01), Sakuma et al.
patent: 4955682 (1990-09-01), Yamaguchi et al.
patent: 4971411 (1990-11-01), Takanashi
patent: 5005928 (1991-04-01), Suzuki et al.
patent: 5008686 (1991-04-01), Saito
patent: 5111219 (1992-05-01), Makino
patent: 5329399 (1994-07-01), Ho
patent: 5343325 (1994-08-01), Yamakawa
patent: 5453870 (1995-09-01), Iima
Hama Takashi
Inoue Nozomu
Nomura Yujiro
Takada Kyu
Schuberg Darren E.
Seiko Epson Corporation
Spyrou Cassandra
LandOfFree
Optical scanner 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 scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical scanner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-822437