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:
Jul. 11, 2006
Filed:
Jul. 27, 2005
Yoichi Suzuki, Kanagawa, JP;
Yoshinori Morimoto, Kanagawa, JP;
Kenichi Saito, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
The scanning lens unit includes lenses located between a optical deflector and a lens having a k-th lens surface Sfrom a first lens surface Sclosest to the deflector are disposed such that a height of a lens having the lens surface Sdenoted by πsatisfies the predetermined expression. each of lenses located between the first lens surface Sand the k-th lens surface Sis a cylindrical lens having power only in the determined deflection direction. Therefore, the lenses can individually have minimum thicknesses, as a result, the cost reduction of the scanning lens unit is realized. The optical scanning apparatus includes the scanning lens and hence can achieve cost reduction.