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. 28, 2006
Filed:
Apr. 20, 2005
Yasuo Osada, Saitama, JP;
Junzo Kumakura, Kanagawa, JP;
Hideo Nagasaka, Kanagawa, JP;
Shuichi Hirosawa, Ibaraki, JP;
Yoshihiro Kajiyama, Saitama, JP;
Yasuo Osada, Saitama, JP;
Junzo Kumakura, Kanagawa, JP;
Hideo Nagasaka, Kanagawa, JP;
Shuichi Hirosawa, Ibaraki, JP;
Yoshihiro Kajiyama, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
An adjustment method for optical pick-up including a light source for emitting light beams, an object lens for irradiating light beams onto an optical disc for adjustment and a drive portion for driving the object lens in a direction in parallel to the optical axis of the object lens and in a direction perpendicular to the optical axis thereof, wherein in the state where the light source is movably held with respect to the object lens and the drive portion is movably held with respect to the light source, light beams are irradiated onto an optical disc for adjustment concentrically having recording tracks from the optical pick-up to adjust relative position of the object lens with respect to the light source and inclination of the optical axis of the object lens, and an optical disc for adjustment used in such an adjustment method.