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:
Dec. 06, 2016
Filed:
Nov. 25, 2015
Kyocera Document Solutions Inc., Osaka-shi, Osaka, JP;
Hideji Mizutani, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka-shi, JP;
Abstract
A laser scanning unit includes a light source, a deflector, and a scanning lens. A surface shape of the scanning lens is formed so as to have: non-uniform-speed scanning characteristics in which a scanning speed with the light beam is the lowest at the one end and the other end of the to-be-scanned surface and is highest at a midpoint between the one end and the other end; and image formation characteristics in which a beam diameter of the light beam is largest at the one end and the other end of the to-be-scanned surface and is the smallest at the midpoint between the one end and the other end. The non-uniform-speed scanning characteristics and the image formation characteristics are characteristics in which a peak value of an intensity distribution of the light beam at each image height is made equal to each other by a combination of both characteristics.