Scanning optical system

Details Scanning optical system Scanning optical system

2005-10-11

2005-10-11

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S216100, C359S204200

Reexamination Certificate

active

06954296

ABSTRACT:
A scanning optical system is provided with a light source, a polygonal mirror, and an imaging optical system that converges the at least one beam deflected by the polygonal mirror. The imaging optical system has a scanning lens, and a compensation lens. The light source is arranged so that beams emitted by the light source are incident on the polygonal mirror from the outside of the predetermined scanning range in the main scanning direction and are incident on the polygonal mirror being inclined in an auxiliary scanning direction with respect to a plane perpendicular to a rotational axis of the polygonal mirror. Further, at least one surface of the scanning lens has a first anamorphic surface, power of the first anamorphic surface in the auxiliary scanning direction is distributed asymmetrically in the main scanning direction with respect to an optical axis of said scanning lens. Further, power of each surface of the compensation lens in the auxiliary scanning direction is distributed symmetrically with respect to a center position of said each surface.

REFERENCES:
patent: 5025268 (1991-06-01), Arimoto et al.
patent: 5418639 (1995-05-01), Yamazaki
patent: 6317245 (2001-11-01), Hama et al.
patent: 6392772 (2002-05-01), Hama et al.
patent: 6392773 (2002-05-01), Hama et al.
patent: 6396615 (2002-05-01), Hama et al.
patent: 6633423 (2003-10-01), Ishibe
patent: 2003/0072042 (2003-04-01), Koreeda
patent: 8-122635 (1996-05-01), None
patent: 10148755 (1998-06-01), None

Affiliated with

Also associated with

Rating

Scanning optical system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scanning optical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanning optical system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3469615