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. 23, 2008
Filed:
Nov. 26, 2007
Shogo Yamamoto, Hachioji, JP;
Yuichi Atarashi, Hachioji, JP;
Kazuhiro Wada, Hachioji, JP;
Tsutomu Shimizu, Misato, JP;
Shogo Yamamoto, Hachioji, JP;
Yuichi Atarashi, Hachioji, JP;
Kazuhiro Wada, Hachioji, JP;
Tsutomu Shimizu, Misato, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
An object lens unit for an optical pickup device is disclosed. The object lens unit includes a first optical element facing an optical information recording medium; a second optical element positioned on a light source side of the first optical element; and a frame in which the first optical element and the second optical element are fixed. The frame includes a first fitting portion and a second fitting portion, and has a prescribed clearance in a perpendicular direction to the optical axis between at least one of the first fitting portion of the frame and the first optical element, and the second fitting portion of the frame and the second optical element to adjust a position of at least one of the first optical element and the second optical element in a perpendicular direction to the optical axis. An optical pickup device including such object lens unit is also disclosed.