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:
Mar. 08, 2005
Filed:
Nov. 19, 2003
Hideki Nakata, Soraku-gun, JP;
Hironori Tomita, Ikoma, JP;
Hideki Aikoh, Higashiosaka, JP;
Kenichi Miyamori, Toyonaka, JP;
Takuya Wada, Katano, JP;
Hideki Nakata, Soraku-gun, JP;
Hironori Tomita, Ikoma, JP;
Hideki Aikoh, Higashiosaka, JP;
Kenichi Miyamori, Toyonaka, JP;
Takuya Wada, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A reflecting mirror and an optical bench are placed on an external jig provided with a mirror holding portion for maintaining the reflecting mirror, and then the reflecting mirror and the optical bench are bonded and fixed, thus obtaining an optical head. An adhesion reference plane for the reflecting mirror is no longer required in the optical bench, thus reducing the size and cost of the optical bench. The mounting precision is high and stable. Further, the reflecting mirror is bonded and fixed at the vicinities of the approximate centers of its two opposed side faces and therefore the variation in orientation of the reflecting mirror due to expansion or contraction of an adhesive is lessened, thus achieving a highly-reliable optical head excellent in environmental stability characteristics.