NL1015456C2 - Objectieflens-inrichting voor optische opname. - Google Patents

Objectieflens-inrichting voor optische opname. Download PDF

Info

Publication number
NL1015456C2
NL1015456C2 NL1015456A NL1015456A NL1015456C2 NL 1015456 C2 NL1015456 C2 NL 1015456C2 NL 1015456 A NL1015456 A NL 1015456A NL 1015456 A NL1015456 A NL 1015456A NL 1015456 C2 NL1015456 C2 NL 1015456C2
Authority
NL
Netherlands
Prior art keywords
lens
coil
distance
objective lens
drive means
Prior art date
Application number
NL1015456A
Other languages
English (en)
Dutch (nl)
Other versions
NL1015456A1 (nl
Inventor
Masayuki Nishikawa
Original Assignee
Sharp Kk
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 Sharp Kk filed Critical Sharp Kk
Publication of NL1015456A1 publication Critical patent/NL1015456A1/xx
Application granted granted Critical
Publication of NL1015456C2 publication Critical patent/NL1015456C2/nl

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
    • G11B7/08—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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts
    • 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
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/1372—Lenses
    • G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
NL1015456A 1999-06-18 2000-06-16 Objectieflens-inrichting voor optische opname. NL1015456C2 (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11172623A JP2001006192A (ja) 1999-06-18 1999-06-18 光学ピックアップ用対物レンズ装置
JP17262399 1999-06-18

Publications (2)

Publication Number Publication Date
NL1015456A1 NL1015456A1 (nl) 2000-12-19
NL1015456C2 true NL1015456C2 (nl) 2004-04-20

Family

ID=15945317

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1015456A NL1015456C2 (nl) 1999-06-18 2000-06-16 Objectieflens-inrichting voor optische opname.

Country Status (3)

Country Link
JP (1) JP2001006192A (ja)
KR (1) KR100374282B1 (ja)
NL (1) NL1015456C2 (ja)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1069648A (ja) * 1996-08-28 1998-03-10 Sony Corp 光学ピックアップ装置及びこの光学ピックアップ装置の調整方法
US5881034A (en) * 1996-08-20 1999-03-09 Sony Corporation Apparatus for driving objective lens
JPH11110794A (ja) * 1997-09-30 1999-04-23 Sony Corp レンズ駆動装置及び光学ヘッド
US6307687B1 (en) * 1999-05-11 2001-10-23 Sharp Kabushiki Kaisha Optical pickup device capable of accurate tracking with simple structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881034A (en) * 1996-08-20 1999-03-09 Sony Corporation Apparatus for driving objective lens
JPH1069648A (ja) * 1996-08-28 1998-03-10 Sony Corp 光学ピックアップ装置及びこの光学ピックアップ装置の調整方法
JPH11110794A (ja) * 1997-09-30 1999-04-23 Sony Corp レンズ駆動装置及び光学ヘッド
US6414931B1 (en) * 1997-09-30 2002-07-02 Sony Corporation Lens driving device, optical head and optical disc system
US6307687B1 (en) * 1999-05-11 2001-10-23 Sharp Kabushiki Kaisha Optical pickup device capable of accurate tracking with simple structure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 08 30 June 1998 (1998-06-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30) *

Also Published As

Publication number Publication date
JP2001006192A (ja) 2001-01-12
NL1015456A1 (nl) 2000-12-19
KR20010007420A (ko) 2001-01-26
KR100374282B1 (ko) 2003-03-03

Similar Documents

Publication Publication Date Title
US4092529A (en) Detecting head for use in an apparatus for reading optically an information recorded on a record carrier as a track or tracks
US5657172A (en) Objective lens driving device
US4891799A (en) Optical head apparatus for writing and reading data on an optical disk having a lens with an inclined optical axis
JPH06333255A (ja) 光ヘッド装置
KR100634132B1 (ko) 콤팩트한 액추에이터를 갖는 렌즈계를 구비한 광학 주사장치
US4574369A (en) Tracking/focusing device for positioning an optical lens unit
JP4868662B2 (ja) 光学素子のアクチュエータ
EP1760703A2 (en) Optical pickup device
US6307687B1 (en) Optical pickup device capable of accurate tracking with simple structure
NL1015456C2 (nl) Objectieflens-inrichting voor optische opname.
NL1005270C2 (nl) Werkwijze voor het onderscheiden van schijven met verschillende dikten en optische opneeminrichting voor het uitvoeren van deze werkwijze.
KR100695460B1 (ko) 병렬 제어 액추에이터를 구비한 광학 주사장치 및 광학 재생장치
JP5108927B2 (ja) 光学素子のアクチュエータ
JP5108928B2 (ja) 光学素子のアクチュエータ
JPH11312327A (ja) 対物レンズ駆動装置
US6212140B1 (en) Objective lens driving device and optical disk unit
JP3776560B2 (ja) 光学系駆動装置
JP3480090B2 (ja) 二軸アクチュエータ
JP2654168B2 (ja) 光学系支持装置
JP3441517B2 (ja) 光学式情報記録再生装置
JPH04103036A (ja) 情報処理装置
JP2575354B2 (ja) 対物レンズ駆動装置
JP2848016B2 (ja) 対物レンズアクチュエータ及び光ヘッド
JP4046665B2 (ja) 光ヘッド装置
JP3640220B2 (ja) 光ディスク装置の対物レンズ駆動装置

Legal Events

Date Code Title Description
AD1A A request for search or an international type search has been filed
RD2N Patents in respect of which a decision has been taken or a report has been made (novelty report)

Effective date: 20040205

PD2B A search report has been drawn up
V1 Lapsed because of non-payment of the annual fee

Effective date: 20120101