DE69625153D1 - Optisches Abtastsystem zum Lesen von verschiedenen optischen Platten - Google Patents
Optisches Abtastsystem zum Lesen von verschiedenen optischen PlattenInfo
- Publication number
- DE69625153D1 DE69625153D1 DE69625153T DE69625153T DE69625153D1 DE 69625153 D1 DE69625153 D1 DE 69625153D1 DE 69625153 T DE69625153 T DE 69625153T DE 69625153 T DE69625153 T DE 69625153T DE 69625153 D1 DE69625153 D1 DE 69625153D1
- Authority
- DE
- Germany
- Prior art keywords
- scanning system
- reading various
- optical
- optical scanning
- optical disks
- 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
-
- 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
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- 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
- G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950032791A KR970017245A (ko) | 1995-09-29 | 1995-09-29 | 듀얼 포커스 광 픽업장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69625153D1 true DE69625153D1 (de) | 2003-01-16 |
| DE69625153T2 DE69625153T2 (de) | 2003-07-24 |
Family
ID=19428452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69625153T Expired - Fee Related DE69625153T2 (de) | 1995-09-29 | 1996-09-27 | Optisches Abtastsystem zum Lesen von verschiedenen optischen Platten |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5708643A (de) |
| EP (1) | EP0766238B1 (de) |
| JP (1) | JPH09115177A (de) |
| KR (1) | KR970017245A (de) |
| CN (1) | CN1146881C (de) |
| DE (1) | DE69625153T2 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2806422B2 (ja) * | 1996-01-19 | 1998-09-30 | 日本電気株式会社 | 光ディスク用集光レンズ |
| US6259668B1 (en) * | 1996-02-14 | 2001-07-10 | Samsung Electronics Co., Ltd. | Recording/reproducing apparatus having an optical pickup device to read from and record information to disks of different thicknesses |
| DE69840116D1 (de) * | 1997-03-13 | 2008-11-27 | Hitachi Maxell | Optische Linse und optischer Abtastkopf |
| KR100258935B1 (ko) | 1997-07-29 | 2000-06-15 | 윤종용 | 디스크트레이이송제어장치및방법 |
| US6064529A (en) * | 1998-07-02 | 2000-05-16 | Optiteck, Inc. | Spherical aberration correction using flying lens and method |
| CN1172299C (zh) * | 1999-10-30 | 2004-10-20 | 三星电子株式会社 | 光学头 |
| US7679633B2 (en) * | 2005-09-29 | 2010-03-16 | Hewlett-Packard Development Company, L.P. | Facilitating focusing of a multi-function digital media drive |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354740A (ja) * | 1989-07-24 | 1991-03-08 | Matsushita Electric Ind Co Ltd | 光学情報記録部材および光学情報記録再生装置 |
| US5235581A (en) * | 1990-08-09 | 1993-08-10 | Matsushita Electric Industrial Co., Ltd. | Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses |
| JP2559006B2 (ja) * | 1993-01-13 | 1996-11-27 | 松下電器産業株式会社 | 光ヘッド |
| JP2532818B2 (ja) * | 1993-02-01 | 1996-09-11 | 松下電器産業株式会社 | 対物レンズおよび光ヘッド装置 |
| JPH08248307A (ja) * | 1995-03-10 | 1996-09-27 | Sony Corp | 対物レンズ、光ヘッド装置及び光ディスク再生装置 |
-
1995
- 1995-09-29 KR KR1019950032791A patent/KR970017245A/ko not_active Application Discontinuation
-
1996
- 1996-09-25 US US08/719,809 patent/US5708643A/en not_active Expired - Fee Related
- 1996-09-27 EP EP96307118A patent/EP0766238B1/de not_active Expired - Lifetime
- 1996-09-27 DE DE69625153T patent/DE69625153T2/de not_active Expired - Fee Related
- 1996-09-28 CN CNB961201185A patent/CN1146881C/zh not_active Expired - Fee Related
- 1996-09-30 JP JP8278634A patent/JPH09115177A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0766238A1 (de) | 1997-04-02 |
| CN1146881C (zh) | 2004-04-21 |
| US5708643A (en) | 1998-01-13 |
| KR970017245A (ko) | 1997-04-30 |
| EP0766238B1 (de) | 2002-12-04 |
| CN1153379A (zh) | 1997-07-02 |
| DE69625153T2 (de) | 2003-07-24 |
| JPH09115177A (ja) | 1997-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8327 | Change in the person/name/address of the patent owner |
Owner name: DAEWOO ELECTRONICS CORP., SEOUL/SOUL, KR |
|
| 8328 | Change in the person/name/address of the agent |
Representative=s name: SAMSON & PARTNER, PATENTANWAELTE, 80538 MUENCHEN |
|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |