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. 19, 2005
Filed:
Aug. 18, 2003
Kazuhiro Wada, Hachioji, JP;
Hiroyuki Hattori, Hachioji, JP;
Yayol Eguro, Hachioji, JP;
Norikazu Arai, Komae, JP;
Koji Honda, Kodaira, JP;
Yuichi Honda, Hachioji, JP;
Yuichi Atarashi, Hachioji, JP;
Kazuhiro Wada, Hachioji, JP;
Hiroyuki Hattori, Hachioji, JP;
Yayol Eguro, Hachioji, JP;
Norikazu Arai, Komae, JP;
Koji Honda, Kodaira, JP;
Yuichi Honda, Hachioji, JP;
Yuichi Atarashi, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
An objective lens for use in an optical pickup apparatus, comprises a first lens molded with a plastic and having an optically functional section, flange section provided around the periphery of the optically functional section, and a first contacting section provided on the flange section; and a second lens molded with a plastic, located opposite to the first lens and having an optically functional section, a flange section provided around the periphery of the optically functional section, and a second contacting section provided on the flange section. The first lens and the second lens are joined in such a way that the first contacting section and the second contacting section are brought in contact with each other.