DE3678156D1 - Zweiachsiger elektromagnetischer betaetiger. - Google Patents

Zweiachsiger elektromagnetischer betaetiger.

Info

Publication number: DE3678156D1
Authority: DE; Germany
Prior art keywords: electromagnetic actuator; axis electromagnetic; axis; actuator; electromagnetic
Prior art date: 1985-10-30
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

Application number

DE8686112202T

Other languages

English (en)

Inventor

Holger J Baasch

Francis S Luecke

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.)

International Business Machines Corp

Original Assignee

International Business Machines Corp

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.)

1985-10-30

Filing date

1986-09-03

Publication date

1991-04-18

1986-09-03 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1991-04-18 Application granted granted Critical

1991-04-18 Publication of DE3678156D1 publication Critical patent/DE3678156D1/de

2006-09-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- G11B7/093—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
- 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)
Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Electromagnetism (AREA)
Power Engineering (AREA)
Optical Recording Or Reproduction (AREA)

DE8686112202T 1985-10-30 1986-09-03 Zweiachsiger elektromagnetischer betaetiger. Expired - Lifetime DE3678156D1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/793,050 US4813033A (en)	1985-10-30	1985-10-30	Two axis electromagnetic actuator with axis balanced suspension

Publications (1)

Publication Number	Publication Date
DE3678156D1 true DE3678156D1 (de)	1991-04-18

Family

ID=25158944

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8686112202T Expired - Lifetime DE3678156D1 (de)	1985-10-30	1986-09-03	Zweiachsiger elektromagnetischer betaetiger.

Country Status (4)

Country	Link
US (1)	US4813033A (de)
EP (1)	EP0233313B1 (de)
JP (1)	JPS62102436A (de)
DE (1)	DE3678156D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5073883A (en) *	1988-01-27	1991-12-17	Sony Corporation	Objective lens driving apparatus including parallalogram structure
JPH01235040A (ja) *	1988-03-14	1989-09-20	Asahi Optical Co Ltd	光情報記録再生装置の対物レンズ支持装置
JP2529876Y2 (ja) *	1988-03-17	1997-03-19	シャープ株式会社	対物レンズ支持装置
US5050964A (en) *	1988-06-25	1991-09-24	Nec Home Electronics Ltd.	Objective lens supporting mechanism for use in an optical head of an optical disc apparatus
DE3828146A1 (de) *	1988-08-19	1990-02-22	Philips Patentverwaltung	Elektrodynamischer aktuator fuer eine optische einschreib- und ausleseeinheit
US5216643A (en) *	1988-09-20	1993-06-01	Hewlett-Packard Company	Rotary arm and optical head for a magneto-optic disk drive
US5046821A (en) *	1988-11-02	1991-09-10	Nec Corporation	Optics support for an optical disk drive
US5023861A (en) *	1988-12-20	1991-06-11	Literal Corporation	Single stage tracking actuator apparatus for optical beam information storage drive system
EP0379757B1 (de) *	1989-01-25	1995-03-15	Kenju Yomoda	Antriebsanordnung für eine optische Abtasteinheit
US5220543A (en) *	1989-02-14	1993-06-15	Victor Company Of Japan, Ltd.	Compact optical disc recording/reproducing system
US5134527A (en) *	1990-04-25	1992-07-28	Industrial Technology Research Institute	Suspension mechanism for an objective lens of an optical head
JPH05266506A (ja) *	1992-03-19	1993-10-15	Sony Corp	２軸アクチュエータ
JP2848999B2 (ja) *	1992-04-02	1999-01-20	株式会社日本コンラックス	対物レンズの駆動装置
US5461598A (en) *	1992-09-18	1995-10-24	Eastman Kodak Company	Balanced focus actuator for an optical storage system
US5428589A (en) *	1993-08-17	1995-06-27	Eastman Kodak Company	Apparatus and method for an electromagnetic actuator with two orthogonal axes of motion
US5598386A (en) *	1995-01-23	1997-01-28	Eastman Kodak Company	Optimized linear motors for focus/tracking actuators in optical disk drives
JP2856176B2 (ja) *	1995-11-06	1999-02-10	松下電器産業株式会社	光ピックアップ及び光ピックアップの支持方法
CN1139061C (zh) *	1999-05-07	2004-02-18	皇家菲利浦电子有限公司	光学扫描装置和光学播放器
EP1783760B1 (de) *	2005-11-07	2009-05-06	Thomson Licensing S.A.	Vorrichtung zum Lesen von und/oder Schreiben auf optischen Aufzeichnungsmedien
EP1783757A1 (de) *	2005-11-07	2007-05-09	Deutsche Thomson-Brandt Gmbh	Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2212673B2 (de) *	1972-12-29	1977-02-25	Crouzet Sa
GB2088646B (en) *	1980-10-24	1984-09-12	Sony Corp	Pick-up assemblies for disc players
US4592037A (en) *	1980-11-28	1986-05-27	Hitachi, Ltd.	Device for displacing a pickup head in multi-axial directions
JPS57110069A (en) *	1980-12-26	1982-07-08	Fujitsu Ltd	Voice coil type linear motor
JPS57176543A (en) *	1981-04-20	1982-10-29	Sony Corp	Optical type track scanner
US4507764A (en) *	1981-08-25	1985-03-26	Olympus Optical Co., Ltd.	Objective lens drive device with tracking error correction with flux of opposite direction
US4568142A (en) *	1982-04-26	1986-02-04	Hitachi, Ltd.	Objective lens drive apparatus
US4516231A (en) *	1982-08-26	1985-05-07	Rca Corporation	Optical disc system having momentum compensation
JPS59104733A (ja) *	1982-12-08	1984-06-16	Pioneer Electronic Corp	光学式情報読取装置における光学系駆動装置
US4504935A (en) *	1983-02-14	1985-03-12	U.S. Philips Corporation	Electrodynamic focus and radial slide drive for an optical disc system
US4646283A (en) *	1983-05-31	1987-02-24	Matsushita Electric Industrial Co., Ltd.	Objective lens driving apparatus for optical disc player
JPS6012825U (ja) *	1983-06-30	1985-01-28	パイオニア株式会社	電気機械変換器の支持機構
JPS6050731A (ja) *	1983-08-31	1985-03-20	Nec Home Electronics Ltd	光ピツクアツプのアクチユエ−タ
US4633456A (en) *	1984-01-23	1986-12-30	International Business Machines Corporation	Two axis electromagnetic actuator

1985
- 1985-10-30 US US06/793,050 patent/US4813033A/en not_active Expired - Lifetime
1986
- 1986-08-20 JP JP61193023A patent/JPS62102436A/ja active Granted
- 1986-09-03 DE DE8686112202T patent/DE3678156D1/de not_active Expired - Lifetime
- 1986-09-03 EP EP86112202A patent/EP0233313B1/de not_active Expired

Also Published As

Publication number	Publication date
EP0233313A2 (de)	1987-08-26
JPS62102436A (ja)	1987-05-12
EP0233313B1 (de)	1991-03-13
EP0233313A3 (en)	1988-01-07
JPH058502B2 (de)	1993-02-02
US4813033A (en)	1989-03-14

Publication	Publication Date	Title
DE3673240D1 (de)	1990-09-13	Elektromagnetventil.
DE3669968D1 (de)	1990-05-03	Elektromagnetisches antriebsystem.
DE3678156D1 (de)	1991-04-18	Zweiachsiger elektromagnetischer betaetiger.
IT8620571A0 (it)	1986-05-27	Azionatore elettromagnetico.
DE3668671D1 (de)	1990-03-08	Magnetisches stellglied.
DE3683421D1 (de)	1992-02-27	Elektromagnetischer schalter.
DE3671322D1 (de)	1990-06-21	Elektromagnet.
FI853373L (fi)	1986-11-30	Sil.
FI862954A (fi)	1987-01-18	Korrigeringsanordning foer braensle-luftfoerhaollande i en braennmotors turbofoergasare.
DE3671035D1 (de)	1990-06-13	Ueberzugsmassen.
DE3575631D1 (de)	1990-03-01	Elektromagnetischer betaetiger.
DE3681680D1 (de)	1991-10-31	Elektromagnetischer antrieb.
FI882201A0 (fi)	1988-05-11	Elektromagnetisk oskillationsmotor.
IT208816Z2 (it)	1988-05-28	Rivestimento.
IT209349Z2 (it)	1988-10-05	Struttura di attuatore elettromagnetico polarizzato.
FI863257A0 (fi)	1986-08-11	Elektromagnetiska relaeer.
FI863184A (fi)	1988-02-06	Elektromagnetisk skivbroms.
FI863255A (fi)	1987-02-23	Elektromagnetiska relaeer.
FI863256A (fi)	1987-02-23	Elektromagnetiska relaeer.
NO871206D0 (no)	1987-03-23	Aerosol-ventilaktuator.
IT8667621A1 (it)	1988-02-01	Attuatore elettromagnetico.
FI863183A0 (fi)	1986-08-05	Elektromagnetisk skivbroms.
IT8620167A0 (it)	1986-04-22	Connettore di comando.
IT8521714A0 (it)	1985-07-25	Bobina per attuatori elettromagnetici.
FI861010A (fi)	1986-09-15	Kontrollanordning foer saeckbana.

Legal Events

Date	Code	Title	Description
1992-04-09	8364	No opposition during term of opposition
1995-09-07	8339	Ceased/non-payment of the annual fee