Title:
OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/118209
Kind Code:
A1
Abstract:
Disclosed are an optical pickup device and an optical disc device which suppress the deterioration of servo performance due to the occurrence of crosstalk between an objective lens actuator and a mirror actuator, and suppress the deterioration of the tracking accuracy of a standing mirror in response to the movement of the objective lens. An objective lens actuator (17) is provided with a lens holder supporting body which supports an objective lens (1) movably in the focusing direction and the tracking direction, and a lens holder driving body which drives a lens holder (2) in the focusing direction and the tracking direction. A mirror actuator (18) is provided with a mirror holder supporting body which supports a standing mirror (10) movably in the tracking direction, and a mirror holder driving body which drives a mirror holder (11) in the tracking direction. A mirror actuator driving circuit (37) drives the mirror actuator (18) such that the standing mirror (10) follows the movement of the objective lens (1) in the tracking direction.
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Inventors:
WAKABAYASHI, Kanji (())
若林 寛爾 (())
SANO, Kousei (())
若林 寛爾 (())
SANO, Kousei (())
Application Number:
JP2011/001701
Publication Date:
September 29, 2011
Filing Date:
March 23, 2011
Export Citation:
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
WAKABAYASHI, Kanji (())
若林 寛爾 (())
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
WAKABAYASHI, Kanji (())
若林 寛爾 (())
International Classes:
G11B7/09; G11B7/125
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (Osaka Nakanoshima Building 2nd Floor, 2-2 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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Claims: