DE3804701C2 - - Google Patents
Info
- Publication number
- DE3804701C2 DE3804701C2 DE3804701A DE3804701A DE3804701C2 DE 3804701 C2 DE3804701 C2 DE 3804701C2 DE 3804701 A DE3804701 A DE 3804701A DE 3804701 A DE3804701 A DE 3804701A DE 3804701 C2 DE3804701 C2 DE 3804701C2
- Authority
- DE
- Germany
- Prior art keywords
- light
- light spot
- spot
- spots
- track
- 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
- 230000003287 optical effect Effects 0.000 claims description 77
- 230000007246 mechanism Effects 0.000 claims description 63
- 238000001514 detection method Methods 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 15
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 1
- 230000006870 function Effects 0.000 description 13
- 238000000926 separation method Methods 0.000 description 13
- 230000010287 polarization Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000004913 activation Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 101100346656 Drosophila melanogaster strat gene Proteins 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 241001237728 Precis Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
-
- 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
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in 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
- G11B7/08—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
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
-
- 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
-
- 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
-
- 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
- G11B7/0901—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 for track following 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
- G11B7/08—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
- G11B7/0908—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 for focusing only
- G11B7/0912—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 for focusing only by push-pull method
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62063770A JP2539414B2 (ja) | 1987-03-20 | 1987-03-20 | 光学的記録再生装置 |
| JP62173930A JP2559742B2 (ja) | 1987-07-14 | 1987-07-14 | 複数スポット位置合わせ制御方法並びに装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3804701A1 DE3804701A1 (de) | 1988-09-29 |
| DE3804701C2 true DE3804701C2 (en, 2012) | 1992-02-27 |
Family
ID=26404898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3804701A Granted DE3804701A1 (de) | 1987-03-20 | 1988-02-15 | Mehrfachlichtfleck-lageregeleinrichtung |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4969137A (en, 2012) |
| DE (1) | DE3804701A1 (en, 2012) |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5208792A (en) * | 1987-05-29 | 1993-05-04 | Matsushita Electric Industrial Co., Ltd. | Recording and reproducing apparatus using opto-magneto media |
| EP0323845B1 (en) * | 1988-01-07 | 1994-08-03 | Nec Corporation | An apparatus for rotating a light image and an optical system for focusing light beams on a recording medium |
| JP2738543B2 (ja) * | 1988-09-16 | 1998-04-08 | オリンパス光学工業株式会社 | 光ピックアップ |
| US5144614A (en) * | 1988-10-29 | 1992-09-01 | Sony Corporation | Optical pickup device |
| CA2014172C (en) * | 1989-04-10 | 1994-11-01 | Shigenori Yanagi | Track access control system in rotating disc devices with eccentricity correction |
| US5151890A (en) * | 1989-05-08 | 1992-09-29 | Seiko Epson Corporation | Optical system for optical memory device |
| JP2651454B2 (ja) * | 1989-05-18 | 1997-09-10 | 株式会社アサカ | マルチビーム光ディスク装置のトラッキング誤差検出部 |
| JPH03130940A (ja) * | 1989-05-24 | 1991-06-04 | Kyocera Corp | 光スポット制御方法および制御装置 |
| JPH0766547B2 (ja) * | 1989-08-31 | 1995-07-19 | 富士通株式会社 | 光デイスク装置 |
| JPH03102644A (ja) * | 1989-09-14 | 1991-04-30 | Canon Inc | 光情報処理装置 |
| KR930009643B1 (ko) * | 1989-09-30 | 1993-10-08 | 삼성전자 주식회사 | 광주사장치를 갖는 광학헤드 |
| NL9000282A (nl) * | 1990-02-06 | 1991-09-02 | Philips Nv | Optische aftastinrichting met meerdere aftastvlekken. |
| US5491678A (en) * | 1990-05-25 | 1996-02-13 | Hitachi, Ltd. | Method and apparatus for recording/reproducing information data in a two-dimensional format |
| JPH04341932A (ja) * | 1991-05-20 | 1992-11-27 | Canon Inc | 光学ヘッド |
| JPH04344337A (ja) * | 1991-05-21 | 1992-11-30 | Toshiba Corp | 光学装置 |
| US5619488A (en) * | 1991-09-07 | 1997-04-08 | Fuji Xerox Co., Ltd. | Information recording device |
| US5253245A (en) * | 1992-01-21 | 1993-10-12 | International Business Machines Corporation | Optical data storage tracking system |
| US5432535A (en) * | 1992-12-18 | 1995-07-11 | Xerox Corporation | Method and apparatus for fabrication of multibeam lasers |
| US5541908A (en) * | 1993-04-21 | 1996-07-30 | Maxoptix Corporation | Actuator having a minimized payload in a optical recording system |
| US5526144A (en) * | 1993-11-18 | 1996-06-11 | International Business Machines Corporation | Optical system with pivoting hologram |
| JPH0822630A (ja) * | 1994-07-04 | 1996-01-23 | Sharp Corp | マルチビーム光ヘッド |
| DE69621678T2 (de) * | 1995-03-14 | 2002-11-28 | Kabushiki Kaisha Toshiba, Kawasaki | Lichtdetektor |
| JP3505282B2 (ja) * | 1995-07-31 | 2004-03-08 | 株式会社東芝 | 光ヘッド装置および情報処理装置 |
| US6430125B1 (en) * | 1996-07-03 | 2002-08-06 | Zen Research (Ireland), Ltd. | Methods and apparatus for detecting and correcting magnification error in a multi-beam optical disk drive |
| US5877494A (en) * | 1996-07-29 | 1999-03-02 | Agfa Division, Bayer Corporation | Beam error correction using movable correction element |
| US5796511A (en) * | 1996-08-30 | 1998-08-18 | Agfa Division, Bayer Corporation | Multi-beam scanner with acousto-optic element for scanning imaging surfaces |
| US5892610A (en) * | 1997-07-10 | 1999-04-06 | Agfa Division--Bayer Corporation | Scanning system with error-correcting deflector |
| US6778343B2 (en) | 1998-03-25 | 2004-08-17 | Hitachi Global Storage Technologies Netherlands Bv | Method, apparatus and storage system having storage media with different track pitch based upon a width of a write element associated therewith |
| US6243210B1 (en) * | 1999-02-24 | 2001-06-05 | Semiconductor Laser International Corp. | Optical image rotating device used with afocal image relaying optics and laser diode array |
| EP1542061B1 (en) * | 1999-04-21 | 2010-07-14 | FUJIFILM Corporation | Correcting method of light beam position in a scanning apparatus |
| US6449225B1 (en) * | 1999-08-13 | 2002-09-10 | Zen Research (Ireland), Ltd. | Method and apparatus for reading multiple tracks of an optical disk |
| KR100378601B1 (ko) * | 2000-01-27 | 2003-03-31 | 한국전자통신연구원 | 다중 광 기록 장치 |
| US6693872B1 (en) | 2000-08-29 | 2004-02-17 | Eastman Kodak Company | Multi-track optical data recording and readout |
| JP2004022083A (ja) * | 2002-06-18 | 2004-01-22 | Optware:Kk | 光ピックアップ装置 |
| US7145844B2 (en) * | 2002-07-22 | 2006-12-05 | Matsushita Electric Industrial Co., Ltd. | Optical head with adjustable beam shaping element |
| JP2004102658A (ja) * | 2002-09-10 | 2004-04-02 | Keihin Corp | 位置決め制御装置 |
| WO2005024798A2 (en) * | 2003-09-11 | 2005-03-17 | Koninklijke Philips Electronics N.V. | Tracking method, recording means and a recorder for an optical disc |
| US6999221B1 (en) | 2003-11-17 | 2006-02-14 | Alabama A&M University | Bimorphic polymeric photomechanical actuator |
| EP1869526B1 (en) * | 2005-03-30 | 2019-11-06 | Necsel Intellectual Property, Inc. | Manufacturable vertical extended cavity surface emitting laser arrays |
| US8885239B2 (en) * | 2007-02-21 | 2014-11-11 | Hewlett-Packard Development Company, L.P. | Method and apparatus for controlling multiple beam spacing |
| EP2215503A2 (en) * | 2007-11-23 | 2010-08-11 | Koninklijke Philips Electronics N.V. | Multi-focal spot generator and multi-focal multi-spot scanning microscope |
| CN103028842B (zh) * | 2012-12-28 | 2014-12-31 | 苏州德龙激光股份有限公司 | 激光直接成像加工装置及其方法 |
| JP6572440B2 (ja) | 2015-02-27 | 2019-09-11 | パナソニックＩｐマネジメント株式会社 | 記録再生装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4462095A (en) * | 1982-03-19 | 1984-07-24 | Magnetic Peripherals Inc. | Moving diffraction grating for an information track centering system for optical recording |
| US4695992A (en) * | 1983-01-31 | 1987-09-22 | Canon Kabushiki Kaisha | Optical information recording-reproducing apparatus in which the relative position of a primary beam and secondary beams on recording medium is varied during recording and reproduction of information |
| DE3323007C1 (de) * | 1983-06-25 | 1984-06-28 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Spurfolgesystem mit einem optischen Abtaster für ein Audio- oder Video-Plattenwiedergabegerät |
| US4787075A (en) * | 1984-12-26 | 1988-11-22 | Canon Kabushiki Kaisha | Optical information recording medium and apparatus for recording/reproducing information using the same |
| US4727528A (en) * | 1986-04-22 | 1988-02-23 | Sri International | Optical media tracking method and apparatus for optical storage system |
-
1988
- 1988-02-15 DE DE3804701A patent/DE3804701A1/de active Granted
- 1988-02-16 US US07/155,697 patent/US4969137A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4969137A (en) | 1990-11-06 |
| DE3804701A1 (de) | 1988-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |