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:
Oct. 31, 2023
Filed:
Jun. 28, 2021
Zhuhai Pantum Electronics Co., Ltd., Zhuhai, CN;
Yongchao Nie, Zhuhai, CN;
Chao Wang, Zhuhai, CN;
ZHUHAI PANTUM ELECTRONICS CO., LTD., Zhuhai, CN;
Abstract
An optical scanning device and an electronic imaging apparatus are provided. The optical scanning device includes a light source, a first optical unit, an optical deflector, and an imaging optical system for guiding a light beam deflected by the optical deflector to a scanned surface for imaging. The imaging optical system includes an F-θ lens satisfying fc/fs≤0.6, X1−X1c>0, and X2−X2c>0, where fs is a focal length of the F-θ lens, fc is an fθ coefficient of the F-θ lens; X1 is a distance between a projection of one incident point on the main optical axis and the scanning origin, X2 is a distance between a projection of one exit point on the main optical axis and the scanning origin, X1c is a distance between the central incident point and the scanning origin, and X2c is a distance between the central exit point and the scanning origin.