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:
Jun. 02, 2015
Filed:
Sep. 24, 2012
Panasonic Corporation, Osaka, JP;
Kanji Wakabayashi, Kyoto, JP;
Kouji Ieki, Osaka, JP;
Abstract
An optical pickup device includes a single objective lens that focuses a light beam to irradiate an optical disk, and an objective lens actuator that drives the objective lens. The objective lens actuator includes a lens holder that holds the objective lens. Two gaps (Ga, Gb) are formed between the lens holder and the objective lens. In an xy plane in which the center of the objective lens is defined as an origin, the tracking direction is defined as an y axis, and the tangential direction of tracks of the optical disk is defined as an x axis, the gap (Ga) is positioned at least in the first quadrant of the xy plane, and the gap (Gb) is positioned at least in the third quadrant of the xy plane.