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:
Jan. 11, 2005
Filed:
Nov. 06, 2002
Kazuhiro Akatsu, Ibaraki, JP;
Takeshi Mochizuki, Ibaraki, JP;
Kazuhiro Akatsu, Ibaraki, JP;
Takeshi Mochizuki, Ibaraki, JP;
Hitachi Printing Solutions, Ltd., Ebina, JP;
Abstract
A light scanner has a light sourceof a two-dimensional array consisting of a plurality of light source elements, a coupling lens systemfor collimating a light flux from the light source, a shaping lens system (cylindrical lensand lens) for shaping the light flux, light beam deflection meansfor deflecting and scanning the post-shaped light flux, and a scanning lens systemfor forming an image of the deflected and scanned light flux on a scanned medium. Assuming that the focal length of the coupling lens systemis f, a slitfor limiting the subscanning direction width as a member for shielding a part of the light flux is placed at a location at a distance of about f from the coupling lens systemin an opposite direction to the light source