Optical scanning apparatus

Details Optical scanning apparatus Optical scanning apparatus

1996-10-24

1998-06-30

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359205, 359217, G02B 2608

Patent

active

057742510

ABSTRACT:
An optical scanning apparatus includes: a rotational polygonal mirror, on the side of which a plurality of reflecting surfaces are provided, the reflecting surfaces deflecting a beam of incident light in the primary scanning direction at a substantially equal angular velocity; a first optical system for forming a beam of light sent from the light source into an image long in the primary scanning direction in such a manner that the formed image strides over the plurality of deflecting surfaces; and an f.theta. lens for converging the beam of light deflected on the deflecting surface at a position close to the surface of the photoreceptor drum so that a spot of light irradiated on the photoreceptor drum can be moved at a substantially equal speed. In the optical scanning apparatus, the angles .alpha. and .beta. satisfy the following expression:

REFERENCES:
patent: 4875748 (1989-10-01), Matsumoto et al.

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1865833