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:
Nov. 27, 2007
Filed:
Sep. 08, 2005
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 comprising: a first optical element positioned facing an optical information recording medium; a second optical element positioned on a light source side of the first optical element; and a frame which has a first reference surface in contact with the first optical element to position the first optical element in an optical axis direction and a second reference surface in contact with the second optical element to position the second optical element in the optical axis direction so that the first optical element and the second optical element are fixed to be integrated with the frame, wherein the first optical element, the second optical element and the frame are attached, as a single optical component, to another member.