1986-11-06
1988-07-05
Corbin, John K.
350 61, 350 68, G02B 960, G02B 2608
Patent
active
047550309
ABSTRACT:
An f.multidot..theta. lens system for use in an apparatus such as a facsimile, machine laser printer, and the like for scanning and recording by a laser beam. The lens system minimizes the amount of image distorted in the sagittal direction and provides equal angular scanning velocity, high brightness and high resolution. The lens system comprises five serially disposed lenses the first of which is a positive meniscus lens whose concave surface is directed toward the incident side of a laser beam, the second lens is a negative meniscus lens whose concave surface is directed toward the incident side of the laser beam, and the third to fifth lenses a positive meniscus lenses whose concave surfaces are directed toward the beam incident side, wherein these lenses satisfy particular conditions relating to the radii of curvatures of their surfaces, lens thickness, refractive indices and lens-to-lens distances.
Araki Nobuhiro
Kawata Koichi
Sakagaito Yukuo
Corbin John K.
Matsushita Electric - Industrial Co., Ltd.
Sugarman Scott J.
LandOfFree
Lens for facsimile or laser printer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lens for facsimile or laser printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens for facsimile or laser printer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2328877