DE69028157T2 - Optische Abtasteinheit - Google Patents
Optische AbtasteinheitInfo
- Publication number
- DE69028157T2 DE69028157T2 DE69028157T DE69028157T DE69028157T2 DE 69028157 T2 DE69028157 T2 DE 69028157T2 DE 69028157 T DE69028157 T DE 69028157T DE 69028157 T DE69028157 T DE 69028157T DE 69028157 T2 DE69028157 T2 DE 69028157T2
- Authority
- DE
- Germany
- Prior art keywords
- optical scanning
- scanning unit
- optical
- unit
- scanning
- 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 - Fee Related
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
-
- 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
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
- G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0927—Electromechanical actuators for lens positioning for focusing only
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1158529A JPH0323523A (ja) | 1989-06-21 | 1989-06-21 | 光学ヘッド装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69028157D1 DE69028157D1 (de) | 1996-09-26 |
DE69028157T2 true DE69028157T2 (de) | 1997-01-23 |
Family
ID=15673726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69028157T Expired - Fee Related DE69028157T2 (de) | 1989-06-21 | 1990-06-14 | Optische Abtasteinheit |
Country Status (6)
Country | Link |
---|---|
US (1) | US5347500A (de) |
EP (1) | EP0404438B1 (de) |
JP (1) | JPH0323523A (de) |
KR (1) | KR0185972B1 (de) |
DE (1) | DE69028157T2 (de) |
SG (1) | SG55150A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5265079A (en) * | 1991-02-15 | 1993-11-23 | Applied Magnetics Corporation | Seek actuator for optical recording |
US6141300A (en) | 1989-06-20 | 2000-10-31 | Discovision Associates | Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same |
US5677899A (en) | 1991-02-15 | 1997-10-14 | Discovision Associates | Method for moving carriage assembly from initial position to target position relative to storage medium |
US5808980A (en) | 1991-02-15 | 1998-09-15 | Discovision Associates | Seek actuator for optical recording |
US5729511A (en) | 1991-02-15 | 1998-03-17 | Discovision Associates | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
US6236625B1 (en) | 1991-02-15 | 2001-05-22 | Discovision Associates | Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
US6069857A (en) | 1991-02-15 | 2000-05-30 | Discovision Associates | Optical disc system having improved circuitry for performing blank sector check on readable disc |
JPH0734699B2 (ja) * | 1991-03-14 | 1995-04-19 | アース製薬株式会社 | 屋内ダニ防除用エアゾール剤およびそれを用いた屋内ダニ防除方法 |
KR100200808B1 (ko) * | 1992-11-30 | 1999-06-15 | 윤종용 | 광픽업 구동장치 |
US6091684A (en) | 1995-01-25 | 2000-07-18 | Discovision Associates | Optical disc system and method for changing the rotational rate of an information storage medium |
US6434087B1 (en) | 1995-01-25 | 2002-08-13 | Discovision Associates | Optical disc system and method for controlling bias coil and light source to process information on a storage medium |
US5748578A (en) | 1995-01-25 | 1998-05-05 | Discovision Associates | Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same |
US5920539A (en) | 1995-01-25 | 1999-07-06 | Discovision Associates | Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor |
US5742441A (en) * | 1995-04-07 | 1998-04-21 | Discovision Associates | Method and apparatus for aligning an objective lens |
US5708633A (en) * | 1995-06-07 | 1998-01-13 | Discovision Associates | Method and apparatus for manufacturing information storage devices |
JP3356918B2 (ja) * | 1995-08-01 | 2002-12-16 | オリンパス光学工業株式会社 | 光ピックアップ |
US6310852B1 (en) * | 1998-10-15 | 2001-10-30 | Matsushita Electric Industrial Co., Ltd. | Optical recording/reproducing apparatus |
KR100569915B1 (ko) * | 2004-01-14 | 2006-04-10 | 엘지전자 주식회사 | 광 디스크 드라이브 장치 |
WO2014041589A1 (ja) * | 2012-09-14 | 2014-03-20 | 株式会社ハーモニック・ドライブ・システムズ | リニア直流モータ |
CN108496301B (zh) * | 2016-02-02 | 2020-02-07 | 谐波传动系统有限公司 | 可动线圈型线性马达 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8204981A (nl) * | 1982-12-24 | 1984-07-16 | Philips Nv | Electrodynamische inrichting voor het transleren van een objectief. |
NL8300133A (nl) * | 1983-01-14 | 1984-08-01 | Philips Nv | Inrichting voor het met behulp van een stralingsbundel inschrijven en/of uitlezen van informatie. |
US4504935A (en) * | 1983-02-14 | 1985-03-12 | U.S. Philips Corporation | Electrodynamic focus and radial slide drive for an optical disc system |
NL8402777A (nl) * | 1984-09-12 | 1986-04-01 | Philips Nv | Lensdrager ten behoeve van een electrodynamische inrichting voor het met een stralingsvlek inschrijven en/of aftasten van optische platen, alsmede een werkwijze voor het vervaardigen van een lensdrager. |
US4688201A (en) * | 1985-01-16 | 1987-08-18 | Hewlett-Packard Company | Focusing and tracking apparatus for an optical data storage device |
US4761774A (en) * | 1985-05-30 | 1988-08-02 | Matsushita Electric Industrial Co., Ltd. | Optical disc drive apparatus |
JPS62200538A (ja) * | 1986-02-26 | 1987-09-04 | Toshiba Corp | 情報処理装置 |
JPS639026A (ja) * | 1986-06-28 | 1988-01-14 | Nec Home Electronics Ltd | 光ヘツドの位置検出装置 |
JP2666278B2 (ja) * | 1987-04-29 | 1997-10-22 | 日本ビクター株式会社 | 情報信号記録,再生装置 |
JPS647343A (en) * | 1987-06-30 | 1989-01-11 | Nippon Denki Home Electronics | Optical disk device |
JPS6432432A (en) * | 1987-07-28 | 1989-02-02 | Oki Electric Ind Co Ltd | Objective lens driving device |
JPH01150241A (ja) * | 1987-12-07 | 1989-06-13 | Tosoh Corp | 分離型光学ヘッド装置 |
JP2778032B2 (ja) * | 1988-01-27 | 1998-07-23 | ソニー株式会社 | 光学ピックアップ装置 |
-
1989
- 1989-06-21 JP JP1158529A patent/JPH0323523A/ja active Pending
-
1990
- 1990-06-14 EP EP90306492A patent/EP0404438B1/de not_active Expired - Lifetime
- 1990-06-14 DE DE69028157T patent/DE69028157T2/de not_active Expired - Fee Related
- 1990-06-14 SG SG1996008099A patent/SG55150A1/en unknown
- 1990-06-20 KR KR1019900009039A patent/KR0185972B1/ko not_active IP Right Cessation
-
1993
- 1993-11-29 US US08/159,080 patent/US5347500A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69028157D1 (de) | 1996-09-26 |
SG55150A1 (en) | 1998-12-21 |
EP0404438A3 (de) | 1992-04-01 |
KR0185972B1 (ko) | 1999-04-15 |
JPH0323523A (ja) | 1991-01-31 |
EP0404438A2 (de) | 1990-12-27 |
EP0404438B1 (de) | 1996-08-21 |
US5347500A (en) | 1994-09-13 |
KR910001674A (ko) | 1991-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |