KR100200872B1 - 광픽업장치용 액츄에이터 - Google Patents
광픽업장치용 액츄에이터 Download PDFInfo
- Publication number
- KR100200872B1 KR100200872B1 KR1019960000311A KR19960000311A KR100200872B1 KR 100200872 B1 KR100200872 B1 KR 100200872B1 KR 1019960000311 A KR1019960000311 A KR 1019960000311A KR 19960000311 A KR19960000311 A KR 19960000311A KR 100200872 B1 KR100200872 B1 KR 100200872B1
- Authority
- KR
- South Korea
- Prior art keywords
- permanent magnet
- actuator
- coil
- tracking coil
- optical pickup
- 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.)
- Expired - Lifetime
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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- 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
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
-
- 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
- G11B7/0932—Details of sprung supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/18—Machines moving with multiple degrees of freedom
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (4)
- 대물렌즈를 지지하기 위한 제1영구자석과, 상기 제1영구자석의 몸체에 권선되며 제1영구자석의 수직이송 구동력을 제공하기 위한 포커싱 코일과, 상기 제1영구자석의 몸체에 설치되며 제1영구자석의 수평이송 구동력을 제공하기 위한 트랙킹 코일과, 상기 제1영구자석과 소정 거리 이격되어 제1영구자석을 에워싸도록 설치되며, 제1영구자석과의 상호작용으로 상기 포커싱 코일 및 트랙킹 코일이 마련된 제1영구자석을 부상시키기 위한 제2영구자석 및 상기 제1영구자석과 제2영구자석 사이에 설치되며, 제1영구자석의 이동 범위와 진동을 제어하는 한편, 상기 포커싱 코일 및 트랙킹 코일에 전류를 공급하기 위한 탬핑 부재를 구비하여 된 것을 특징으로 하는 광픽업장치용 액츄에이터.
- 상기 제1,제2영구자석의 몸체 소정 부위에는 트랙킹 코일에 의한 자기경로를 제공하기 위한 관통공이 각각 2개소씩 형성되어 있는 것을 특징으로 하는 광픽업장치용 액츄에이터.
- 제2항에 있어서, 상기 관통공은 상기 제1,제2영구자석의 중심 원점을 지나는 수평축의 양단 부위에 대칭적으로 각각 형성되는 것을 특징으로 하는 광픽업장치용 액츄에이터.
- 제1항에 있어서, 상기 트랙킹 코일은 그 권선된 코일의 중심부가 상기 제1영구자석의 관통공의 양측 세로변에 각각 위치되도록 설치되는 것을 특징으로 하는 광픽업장치용 액츄에이터.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960000311A KR100200872B1 (ko) | 1996-01-09 | 1996-01-09 | 광픽업장치용 액츄에이터 |
JP8351576A JP2718919B2 (ja) | 1996-01-09 | 1996-12-27 | 光ピックアップ装置用のアクチュエーター |
US08/780,213 US5739608A (en) | 1996-01-09 | 1997-01-08 | Actuator for optical pickup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960000311A KR100200872B1 (ko) | 1996-01-09 | 1996-01-09 | 광픽업장치용 액츄에이터 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970060100A KR970060100A (ko) | 1997-08-12 |
KR100200872B1 true KR100200872B1 (ko) | 1999-06-15 |
Family
ID=19449191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960000311A Expired - Lifetime KR100200872B1 (ko) | 1996-01-09 | 1996-01-09 | 광픽업장치용 액츄에이터 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5739608A (ko) |
JP (1) | JP2718919B2 (ko) |
KR (1) | KR100200872B1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4250409B2 (ja) * | 2002-12-04 | 2009-04-08 | 日本電産サンキョー株式会社 | レンズ駆動装置 |
US6946761B2 (en) * | 2003-04-18 | 2005-09-20 | Asml Holding, N.V. | Actuator coil cooling system |
DE602005008647D1 (de) * | 2004-12-09 | 2008-09-11 | Thomson Licensing Sa | Aktor für einen optischen scanner |
CN201373938Y (zh) * | 2009-02-03 | 2009-12-30 | 力相光学股份有限公司 | 微小型磁浮式镜头驱动装置 |
JP5657570B2 (ja) * | 2009-12-28 | 2015-01-21 | Tdk株式会社 | 磁界検出装置 |
USD631075S1 (en) * | 2009-12-30 | 2011-01-18 | Foxconn Technology Co., Ltd. | LED lens |
USD631076S1 (en) * | 2009-12-30 | 2011-01-18 | Foxconn Technology Co., Ltd. | LED lens |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1996
- 1996-01-09 KR KR1019960000311A patent/KR100200872B1/ko not_active Expired - Lifetime
- 1996-12-27 JP JP8351576A patent/JP2718919B2/ja not_active Expired - Fee Related
-
1997
- 1997-01-08 US US08/780,213 patent/US5739608A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR970060100A (ko) | 1997-08-12 |
JPH09223329A (ja) | 1997-08-26 |
JP2718919B2 (ja) | 1998-02-25 |
US5739608A (en) | 1998-04-14 |
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