The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2020
Filed:
Aug. 27, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Masahiro Ogura, Saitama, JP;
Hisashi Namba, Utsunomiya, JP;
Ken Katsuta, Saitama, JP;
Yosuke Murakami, Utsunomiya, JP;
Yasuaki Otoguro, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical scanning apparatus includes a light source, a deflector, an optical member, a supporting portion, a casing, a cover member, a first air current deflecting portion configured to deflect, to a direction from the bottom toward the cover member, an air current generated by rotation of the rotatable polygonal mirror and flowing along a longitudinal direction of the optical member; and a second air current deflecting portion provided on the cover member and configured to deflect, to a direction crossing the longitudinal direction, the air current deflected by the first air current deflecting portion and flowing in the longitudinal direction.