JP2001014722A - グレーティング部材および光ピックアップ装置 - Google Patents

グレーティング部材および光ピックアップ装置

Info

Publication number
JP2001014722A
JP2001014722A JP11187339A JP18733999A JP2001014722A JP 2001014722 A JP2001014722 A JP 2001014722A JP 11187339 A JP11187339 A JP 11187339A JP 18733999 A JP18733999 A JP 18733999A JP 2001014722 A JP2001014722 A JP 2001014722A
Authority
JP
Japan
Prior art keywords
grating
grating member
outer peripheral
pickup device
peripheral surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11187339A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001014722A5 (enExample
Inventor
Kazuo Shiba
和夫 柴
Fumio Kobayashi
文男 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Instruments Corp
Original Assignee
Sankyo Seiki Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sankyo Seiki Manufacturing Co Ltd filed Critical Sankyo Seiki Manufacturing Co Ltd
Priority to JP11187339A priority Critical patent/JP2001014722A/ja
Priority to CNB00118900XA priority patent/CN1220193C/zh
Priority to US09/608,437 priority patent/US6785200B1/en
Publication of JP2001014722A publication Critical patent/JP2001014722A/ja
Publication of JP2001014722A5 publication Critical patent/JP2001014722A5/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0903—Multi-beam tracking systems

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
JP11187339A 1999-07-01 1999-07-01 グレーティング部材および光ピックアップ装置 Pending JP2001014722A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11187339A JP2001014722A (ja) 1999-07-01 1999-07-01 グレーティング部材および光ピックアップ装置
CNB00118900XA CN1220193C (zh) 1999-07-01 2000-06-22 光栅构件及光拾波装置
US09/608,437 US6785200B1 (en) 1999-07-01 2000-06-30 Diffraction grating element and optical pickup device incorporating the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11187339A JP2001014722A (ja) 1999-07-01 1999-07-01 グレーティング部材および光ピックアップ装置

Publications (2)

Publication Number Publication Date
JP2001014722A true JP2001014722A (ja) 2001-01-19
JP2001014722A5 JP2001014722A5 (enExample) 2004-08-12

Family

ID=16204279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11187339A Pending JP2001014722A (ja) 1999-07-01 1999-07-01 グレーティング部材および光ピックアップ装置

Country Status (3)

Country Link
US (1) US6785200B1 (enExample)
JP (1) JP2001014722A (enExample)
CN (1) CN1220193C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002084655A1 (fr) * 2001-04-10 2002-10-24 Sony Corporation Capteur optique et unite de disque

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007242203A (ja) * 2006-03-13 2007-09-20 Funai Electric Co Ltd 光ピックアップ
JP2013105516A (ja) * 2011-11-16 2013-05-30 Sanyo Electric Co Ltd 光学素子用のホルダ、光学素子ユニットおよび光ピックアップ装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6180625A (ja) * 1984-09-28 1986-04-24 Mitsubishi Electric Corp 光ピツクアツプの回折格子調整機構
JPS61211846A (ja) * 1985-03-18 1986-09-19 Pioneer Electronic Corp 光学式情報記録再生装置におけるピツクアツプ装置
US4794580A (en) * 1985-07-12 1988-12-27 Pioneer Electronic Corporation Pickup system in optical information recording and reproducing apparatus with damped lead wires
JPS62157330A (ja) * 1985-12-27 1987-07-13 Mitsubishi Electric Corp 光学ヘッド
JPS6330801A (ja) 1986-07-25 1988-02-09 Fujita Corp 太陽光集光伝送装置
JPH0690803B2 (ja) * 1989-05-22 1994-11-14 パイオニア株式会社 情報読取装置の製造方法
WO1996030903A2 (en) * 1995-03-29 1996-10-03 Philips Electronics N.V. Optical unit comprising a radiation source, a detector and a grating, and scanning device including the optical unit
US5754513A (en) * 1995-04-28 1998-05-19 Konica Corporation Information pick-up apparatus and optical disk apparatus
JP3547908B2 (ja) * 1996-07-12 2004-07-28 パイオニア株式会社 光ピックアップ
JPH1139697A (ja) * 1997-07-16 1999-02-12 Sankyo Seiki Mfg Co Ltd 光ヘッド装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002084655A1 (fr) * 2001-04-10 2002-10-24 Sony Corporation Capteur optique et unite de disque

Also Published As

Publication number Publication date
CN1220193C (zh) 2005-09-21
CN1290931A (zh) 2001-04-11
US6785200B1 (en) 2004-08-31

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