DE69631281D1 - Optische Abtastvorrichtung zur Wiedergabe von unterschiedlichen optischen Platten - Google Patents
Optische Abtastvorrichtung zur Wiedergabe von unterschiedlichen optischen PlattenInfo
- Publication number
- DE69631281D1 DE69631281D1 DE69631281T DE69631281T DE69631281D1 DE 69631281 D1 DE69631281 D1 DE 69631281D1 DE 69631281 T DE69631281 T DE 69631281T DE 69631281 T DE69631281 T DE 69631281T DE 69631281 D1 DE69631281 D1 DE 69631281D1
- Authority
- DE
- Germany
- Prior art keywords
- scanning device
- reproducing different
- optical scanning
- optical disks
- optical
- 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
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
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
-
- 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
- G11B7/1359—Single prisms
-
- 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
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29839895 | 1995-11-16 | ||
| JP29839895A JP3236203B2 (ja) | 1995-11-16 | 1995-11-16 | 光ピックアップ装置 |
| JP460996 | 1996-01-16 | ||
| JP00460996A JP3216691B2 (ja) | 1996-01-16 | 1996-01-16 | 光ピックアップ装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69631281D1 true DE69631281D1 (de) | 2004-02-12 |
| DE69631281T2 DE69631281T2 (de) | 2004-11-25 |
Family
ID=26338413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69631281T Expired - Lifetime DE69631281T2 (de) | 1995-11-16 | 1996-11-14 | Optische Abtastvorrichtung zur Wiedergabe von unterschiedlichen optischen Platten |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US5717678A (de) |
| EP (1) | EP0774751B1 (de) |
| DE (1) | DE69631281T2 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717678A (en) * | 1995-11-16 | 1998-02-10 | Ricoh Company, Ltd. | Optical pickup device for accessing each of optical disks of different types |
| US20010050892A1 (en) * | 1997-07-11 | 2001-12-13 | Yoshitaka Takahashi | Optical disk apparatus compatible with different types of mediums |
| US6195315B1 (en) * | 1997-07-11 | 2001-02-27 | Ricoh Company, Ltd. | Optical disk apparatus compatible with different types of mediums |
| JPH11134732A (ja) * | 1997-08-29 | 1999-05-21 | Canon Inc | 情報記録再生方法 |
| WO2000039791A1 (en) * | 1998-12-29 | 2000-07-06 | Koninklijke Philips Electronics N.V. | Optical scanning device for two types of record carriers |
| DE60018735T2 (de) | 1999-01-22 | 2006-01-26 | Konica Minolta Opto, Inc., Hachioji | Optische Abtastvorrichtung, Aufzeichnungs- /-Wiedergabegerät mit dieser optischen Abtastvorrichtung, optisches Element und Verfahren zur Informationsaufzeichnung /-Wiedergabe |
| US7012875B2 (en) * | 2000-09-06 | 2006-03-14 | Hitachi, Ltd. | Optical disk apparatus using focal shift signals to control spherical aberration |
| EP1861852A1 (de) * | 2005-03-11 | 2007-12-05 | Koninklijke Philips Electronics N.V. | Optische scan-einrichtung |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0390445A3 (de) * | 1989-03-27 | 1992-01-22 | Matsushita Electric Industrial Co., Ltd. | Optischer Abtastkopf |
| 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 |
| US5206852A (en) * | 1991-06-29 | 1993-04-27 | Samsung Electronics Co., Ltd. | High-density recording optical head |
| JPH0777031B2 (ja) * | 1991-10-16 | 1995-08-16 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 収差補償装置 |
| US5281797A (en) * | 1991-12-26 | 1994-01-25 | Hitachi, Ltd. | Short wavelength optical disk head having a changeable aperture |
| 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 |
| JP2993391B2 (ja) * | 1995-03-03 | 1999-12-20 | 日本ビクター株式会社 | 光ピックアップ |
| KR100392857B1 (ko) * | 1995-03-15 | 2003-12-31 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 기록 매체를 광학적으로 주사하기 위한 장치 |
| KR960038794A (ko) * | 1995-04-14 | 1996-11-21 | 사또오 후미오 | 광학적 정보 재생 장치 |
| US5621717A (en) * | 1995-06-07 | 1997-04-15 | International Business Machines Corporation | Reading optical disks having substrates with diverse axial thicknesses |
| US5717678A (en) * | 1995-11-16 | 1998-02-10 | Ricoh Company, Ltd. | Optical pickup device for accessing each of optical disks of different types |
-
1996
- 1996-11-12 US US08/745,421 patent/US5717678A/en not_active Expired - Lifetime
- 1996-11-14 DE DE69631281T patent/DE69631281T2/de not_active Expired - Lifetime
- 1996-11-14 EP EP96118267A patent/EP0774751B1/de not_active Expired - Lifetime
-
1997
- 1997-10-07 US US08/946,592 patent/US5894466A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5717678A (en) | 1998-02-10 |
| US5894466A (en) | 1999-04-13 |
| DE69631281T2 (de) | 2004-11-25 |
| EP0774751A2 (de) | 1997-05-21 |
| EP0774751B1 (de) | 2004-01-07 |
| EP0774751A3 (de) | 1998-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |