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:
Apr. 16, 2002
Filed:
Jan. 28, 1999
Tetsuo Ikegame, Hachioji, JP;
Kenichi Onomura, Tanashi, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An optical pick-up apparatus according to the invention optically performs at least one of selective recording of information onto a plurality of recording layers of a plurality of optical recording mediums arranged in layers, and selective reproduction of information from the plurality of recording layers. Switching in optical circuits which are each adapted to guide a light beam to a desired recording layer is performed using a movable mirror, a galvano mirror or a biaxial movable mirror, to thereby perform selective recording of information onto the plurality of recording layers of optical disks or selective reproduction of information from the plurality of recording layers.