Scanning and imaging lens and optical scanning device

Details Scanning and imaging lens and optical scanning device Scanning and imaging lens and optical scanning device

1997-01-21

2000-06-13

Schuberg, Darren E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359207, 359662, 347258, G02B 2608

Patent

active

060756381

ABSTRACT:
An optical scanning lens is for use in an optical scanning device in which a light beam forming a line image elongated in a direction corresponding to a main-scanning direction is deflected at a constant angular velocity by a deflector having a reflecting surface in a vicinity of a position of the line image, and in which a deflected beam is focused by the optical scanning lens to form a beam spot on a surface to be scanned so that a constant velocity optical scanning of the surface to be scanned is effected, the optical scanning lens having a single-lens construction and being constructed such that at least one of lens surfaces has an asymmetrical configuration with respect to an optical axis within a plane of deflection, the asymmetrical configuration with respect to the optical axis being designed so that a field curvature is properly corrected and a proper constant-velocity characteristic is obtained over an entire effective optical scanning area, and the plane of deflection being defined as a plane including the optical scanning lens and parallel to the direction corresponding to the main-scanning direction.

REFERENCES:
patent: 5329399 (1994-07-01), Ho
patent: 5600475 (1997-02-01), Mochizuki et al.

Affiliated with

Also associated with

Rating

Scanning and imaging lens and optical scanning device 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 and imaging lens and optical scanning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanning and imaging lens and optical scanning device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2073887