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:
Mar. 21, 2018
Minebea Mitsumi Inc., Nagano, JP;
MINEBEA MITSUMI INC., Nagano, JP;
Abstract
A distance between the rotary shaft and the pressurizing position of the polygon mirror by the mirror fixing spring is shorter than a distance between the rotary shaft and a position at which the polygon mirror comes into contact with the seat surface. When a difference between an outer radius and an inner radius of the polygon mirror is defined as A, and a difference between the distance between the rotary shaft and the pressurizing position of the polygon mirror by the mirror fixing spring and the distance between the rotary shaft and the position at which the polygon mirror comes into contact with the seat surface is defined as C, the relationship of 0<C≤A/4 is established. When a distance, in a direction orthogonal to the rotary shaft, between a position at which the inner diameter side of the polygon mirror comes into contact with the sleeve and the position of the seat surface is defined as E, the relationship of A/3≤E≤A/2 is established.