DE60044901D1 - Optischer abtastkopf - Google Patents
Optischer abtastkopfInfo
- Publication number
- DE60044901D1 DE60044901D1 DE60044901T DE60044901T DE60044901D1 DE 60044901 D1 DE60044901 D1 DE 60044901D1 DE 60044901 T DE60044901 T DE 60044901T DE 60044901 T DE60044901 T DE 60044901T DE 60044901 D1 DE60044901 D1 DE 60044901D1
- Authority
- DE
- Germany
- Prior art keywords
- optical scanning
- scanning head
- head
- optical
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
-
- 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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
- G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive 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
- G11B7/08—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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
-
- 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
- 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
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
- G11B7/13927—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
- Lenses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99204552 | 1999-12-24 | ||
PCT/EP2000/012987 WO2001048741A2 (en) | 1999-12-24 | 2000-12-19 | Optical scanning head |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60044901D1 true DE60044901D1 (de) | 2010-10-14 |
Family
ID=8241107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60044901T Expired - Lifetime DE60044901D1 (de) | 1999-12-24 | 2000-12-19 | Optischer abtastkopf |
Country Status (7)
Country | Link |
---|---|
US (1) | US6496452B2 (de) |
EP (1) | EP1185978B1 (de) |
JP (1) | JP2003518700A (de) |
KR (1) | KR100766802B1 (de) |
DE (1) | DE60044901D1 (de) |
TW (1) | TW514890B (de) |
WO (1) | WO2001048741A2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002222536A (ja) * | 2001-01-25 | 2002-08-09 | Sony Corp | 光スポット整形装置及び方法、光ピックアップ装置、並びに光ディスク装置 |
JP2002358677A (ja) * | 2001-05-28 | 2002-12-13 | Hitachi Ltd | 光ヘッド及び光ディスク装置 |
JP2003030867A (ja) * | 2001-07-13 | 2003-01-31 | Hitachi Ltd | フォーカス制御方法及び装置とそれを用いた原盤露光装置 |
KR20040068944A (ko) * | 2001-12-19 | 2004-08-02 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광학주사장치 |
JP3815340B2 (ja) * | 2002-02-04 | 2006-08-30 | 日本電気株式会社 | 光ディスク装置および光ディスク装置のチルト補償方法 |
KR101011817B1 (ko) | 2002-11-08 | 2011-02-07 | 시티즌 홀딩스 가부시키가이샤 | 액정 광소자 및 광학 장치 |
EP1676267A2 (de) * | 2003-10-13 | 2006-07-05 | Koninklijke Philips Electronics N.V. | Verfahren und einrichtung zum kompensieren der neigung eines optischen datenträgers |
JP4215011B2 (ja) * | 2004-09-27 | 2009-01-28 | ソニー株式会社 | 光ピックアップ及びこれを用いた光ディスク装置 |
DE102017105928A1 (de) * | 2017-03-20 | 2018-09-20 | Carl Zeiss Microscopy Gmbh | Mikroskop und Verfahren zum Abbilden eines Objektes |
KR101951242B1 (ko) * | 2017-05-19 | 2019-02-22 | 전자부품연구원 | 라이다 장치 및 이를 포함하는 라이다 시스템 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5144056B2 (de) * | 1972-07-25 | 1976-11-26 | ||
TW218427B (de) * | 1991-06-04 | 1994-01-01 | Ibm | |
DE69229451T2 (de) * | 1991-11-20 | 1999-10-07 | Sony Corp | Optische Abtasteinrichtung |
JPH05144056A (ja) * | 1991-11-20 | 1993-06-11 | Sony Corp | デイスク傾き補正装置 |
JPH07140381A (ja) * | 1993-11-18 | 1995-06-02 | Sony Corp | コマ収差補正方法 |
JPH08212611A (ja) * | 1995-02-01 | 1996-08-20 | Asahi Optical Co Ltd | 波面収差補正装置および光情報記録再生装置 |
JP3443226B2 (ja) * | 1995-08-31 | 2003-09-02 | パイオニア株式会社 | 光ピックアップ |
US5838653A (en) * | 1995-10-04 | 1998-11-17 | Reveo, Inc. | Multiple layer optical recording media and method and system for recording and reproducing information using the same |
JPH10188319A (ja) * | 1996-12-26 | 1998-07-21 | Sharp Corp | 変形可能ミラーおよびその変形可能ミラーを用いた光記録再生装置 |
JP3640497B2 (ja) * | 1997-03-05 | 2005-04-20 | パイオニア株式会社 | 収差補正装置及び情報記録媒体再生装置 |
-
2000
- 2000-11-16 TW TW089124263A patent/TW514890B/zh not_active IP Right Cessation
- 2000-12-19 KR KR1020017010721A patent/KR100766802B1/ko not_active IP Right Cessation
- 2000-12-19 WO PCT/EP2000/012987 patent/WO2001048741A2/en active Application Filing
- 2000-12-19 JP JP2001548382A patent/JP2003518700A/ja active Pending
- 2000-12-19 DE DE60044901T patent/DE60044901D1/de not_active Expired - Lifetime
- 2000-12-19 EP EP00991223A patent/EP1185978B1/de not_active Expired - Lifetime
- 2000-12-20 US US09/741,920 patent/US6496452B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1185978B1 (de) | 2010-09-01 |
JP2003518700A (ja) | 2003-06-10 |
WO2001048741A3 (en) | 2001-12-13 |
WO2001048741A2 (en) | 2001-07-05 |
TW514890B (en) | 2002-12-21 |
US20010009538A1 (en) | 2001-07-26 |
KR20010102339A (ko) | 2001-11-15 |
US6496452B2 (en) | 2002-12-17 |
KR100766802B1 (ko) | 2007-10-17 |
EP1185978A2 (de) | 2002-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8320 | Willingness to grant licences declared (paragraph 23) |