CN1221951A - 用于小型盘和数字视盘的光学头致动器 - Google Patents
用于小型盘和数字视盘的光学头致动器 Download PDFInfo
- Publication number
- CN1221951A CN1221951A CN98126902A CN98126902A CN1221951A CN 1221951 A CN1221951 A CN 1221951A CN 98126902 A CN98126902 A CN 98126902A CN 98126902 A CN98126902 A CN 98126902A CN 1221951 A CN1221951 A CN 1221951A
- Authority
- CN
- China
- Prior art keywords
- magnet
- lens
- optical head
- lens holder
- yoke
- 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.)
- Granted
Links
Images
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
- G11B7/0933—Details of stationary 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
- 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
- G11B7/12—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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (3)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR62557/97 | 1997-11-25 | ||
KR62557/1997 | 1997-11-25 | ||
KR1019970062557A KR19990041882A (ko) | 1997-11-25 | 1997-11-25 | 씨디-디브이디 겸용 광픽업 액츄에이터 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1221951A true CN1221951A (zh) | 1999-07-07 |
CN1122984C CN1122984C (zh) | 2003-10-01 |
Family
ID=19525503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN98126902A Expired - Fee Related CN1122984C (zh) | 1997-11-25 | 1998-11-25 | 用于小型盘和数字视盘的光学头致动器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6084726A (zh) |
JP (1) | JPH11242821A (zh) |
KR (1) | KR19990041882A (zh) |
CN (1) | CN1122984C (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100735425B1 (ko) | 2005-12-09 | 2007-07-04 | 삼성전기주식회사 | 바형 마그네트를 구비하는 모바일용 액추에이터 |
US9709769B2 (en) * | 2014-12-10 | 2017-07-18 | Becton, Dickinson And Company | Methods for optically aligning light collection components and optically aligned light collection systems thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH042420Y2 (zh) * | 1984-09-28 | 1992-01-28 | ||
JP2676342B2 (ja) * | 1987-04-17 | 1997-11-12 | パイオニア株式会社 | 光学式ピックアップの光学部品駆動装置 |
US4998802A (en) * | 1988-06-03 | 1991-03-12 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Objective lens driving device in an optical pickup |
JPH03122826A (ja) * | 1989-10-05 | 1991-05-24 | Canon Inc | アクチュエータ |
JP2984526B2 (ja) * | 1993-08-31 | 1999-11-29 | 日本電気株式会社 | 光ピックアップ装置 |
CN1056702C (zh) * | 1993-10-13 | 2000-09-20 | 株式会社三协精机制作所 | 物镜驱动装置 |
KR100373673B1 (ko) * | 1995-05-08 | 2003-05-09 | 산요 덴키 가부시키가이샤 | 광학기록·재생장치및광픽업 |
JP2981644B2 (ja) * | 1995-09-14 | 1999-11-22 | 富士通株式会社 | 光ディスク装置の対物レンズ切替え方法 |
JP2850822B2 (ja) * | 1995-12-26 | 1999-01-27 | 日本電気株式会社 | レンズアクチュエータ |
-
1997
- 1997-11-25 KR KR1019970062557A patent/KR19990041882A/ko not_active Application Discontinuation
-
1998
- 1998-11-20 JP JP10331480A patent/JPH11242821A/ja active Pending
- 1998-11-25 US US09/199,354 patent/US6084726A/en not_active Expired - Fee Related
- 1998-11-25 CN CN98126902A patent/CN1122984C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH11242821A (ja) | 1999-09-07 |
US6084726A (en) | 2000-07-04 |
CN1122984C (zh) | 2003-10-01 |
KR19990041882A (ko) | 1999-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20030105 Address after: Seoul City, Korea Applicant after: Daewoo Electronics Co., Ltd. Address before: Seoul Applicant before: Daewoo Electronics Co., Ltd. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1062220 Country of ref document: HK |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031001 Termination date: 20101125 |