Title:
光ピックアップ装置及び光ディスク装置
Document Type and Number:
Japanese Patent JP4539556
Kind Code:
B2
Abstract:
To reduce the size or thickness of an optical pickup device and an optical disk drive, an optical pickup device includes a light source that radiates laser light; a condensing member that condenses the laser light onto a recording medium; an optical member that reflects some of the laser light radiated from the light source into the condensing member and transmits the rest of the radiated laser light; and a light receiving sensor that receives the rest of the laser light transmitted through the optical member so as to detect an amount of laser light.
Inventors:
Takashi Haruguchi
Horinouchi Shogo
Horinouchi Shogo
Application Number:
JP2005377966A
Publication Date:
September 08, 2010
Filing Date:
December 28, 2005
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G11B7/135
Domestic Patent References:
| JP2005174485A | ||||
| JP2004327012A | ||||
| JP2080318U | ||||
| JP2007236A | ||||
| JP2002100068A | ||||
| JP2004362713A |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii