DE69617873D1 - Optischer Kopf für Informationsaufzeichnungs-/-wiedergabegerät - Google Patents
Optischer Kopf für Informationsaufzeichnungs-/-wiedergabegerätInfo
- Publication number
- DE69617873D1 DE69617873D1 DE69617873T DE69617873T DE69617873D1 DE 69617873 D1 DE69617873 D1 DE 69617873D1 DE 69617873 T DE69617873 T DE 69617873T DE 69617873 T DE69617873 T DE 69617873T DE 69617873 D1 DE69617873 D1 DE 69617873D1
- Authority
- DE
- Germany
- Prior art keywords
- information recording
- optical head
- reproducing device
- reproducing
- 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 - Fee Related
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
- G11B7/1372—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
- G11B7/08—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
-
- 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
- G11B7/139—Numerical aperture control means
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7268326A JPH09115178A (ja) | 1995-10-17 | 1995-10-17 | 光ヘッド装置およびその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69617873D1 true DE69617873D1 (de) | 2002-01-24 |
DE69617873T2 DE69617873T2 (de) | 2002-08-08 |
Family
ID=17456995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69617873T Expired - Fee Related DE69617873T2 (de) | 1995-10-17 | 1996-10-10 | Optischer Kopf für Informationsaufzeichnungs-/-wiedergabegerät |
Country Status (5)
Country | Link |
---|---|
US (1) | US5898653A (de) |
EP (1) | EP0769777B1 (de) |
JP (1) | JPH09115178A (de) |
KR (1) | KR100232915B1 (de) |
DE (1) | DE69617873T2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3541617B2 (ja) * | 1997-04-23 | 2004-07-14 | 日本ビクター株式会社 | 光学式ディスク装置 |
JP3845982B2 (ja) * | 1997-10-17 | 2006-11-15 | ソニー株式会社 | 光ピックアップ装置 |
US6542304B2 (en) * | 1999-05-17 | 2003-04-01 | Toolz, Ltd. | Laser beam device with apertured reflective element |
KR20030081706A (ko) * | 2002-04-12 | 2003-10-22 | 주식회사 하이소닉 | 복수의 대물렌즈를 갖는 광 픽업장치 |
JP4166715B2 (ja) * | 2004-02-25 | 2008-10-15 | 株式会社リコー | 対物レンズ駆動装置,光ピックアップ装置および光ディスク装置 |
TW200614211A (en) * | 2004-06-18 | 2006-05-01 | Koninkl Philips Electronics Nv | System and method of objective lens selection in a multiple lens actuator |
US7729212B2 (en) * | 2006-10-05 | 2010-06-01 | Panasonic Corporation | Objective lens driving device, optical pickup device, and optical disk drive |
US8086778B2 (en) * | 2008-06-27 | 2011-12-27 | Microsoft Corporation | Filter driver to enumerate smartcard nodes for plug and play |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5148421A (en) * | 1990-04-20 | 1992-09-15 | Matsushita Electric Industrial Co., Ltd. | Optical head |
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 |
JPH0785482A (ja) * | 1993-09-16 | 1995-03-31 | Toshiba Corp | 光学ヘッドとその光軸調整方法 |
JPH0793798A (ja) * | 1993-09-22 | 1995-04-07 | Toshiba Corp | 光学ヘッド |
US5729510A (en) * | 1994-01-19 | 1998-03-17 | Kabushiki Kaisha Toshiba | Optical head used for recording on optical recording medium having various thicknesses, warpage and the like |
JP3519804B2 (ja) * | 1994-11-10 | 2004-04-19 | オリンパス株式会社 | 光ピックアップ装置 |
EP0727776B1 (de) * | 1995-02-20 | 2003-01-15 | Mitsubishi Denki Kabushiki Kaisha | Objektivlinsenantriebsvorrichtung und optische Informationsaufzeichnungs-/-wiedergabevorrichtung |
KR100373673B1 (ko) * | 1995-05-08 | 2003-05-09 | 산요 덴키 가부시키가이샤 | 광학기록·재생장치및광픽업 |
-
1995
- 1995-10-17 JP JP7268326A patent/JPH09115178A/ja active Pending
-
1996
- 1996-08-30 KR KR1019960036694A patent/KR100232915B1/ko not_active IP Right Cessation
- 1996-10-10 DE DE69617873T patent/DE69617873T2/de not_active Expired - Fee Related
- 1996-10-10 EP EP96116247A patent/EP0769777B1/de not_active Expired - Lifetime
- 1996-10-16 US US08/731,554 patent/US5898653A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0769777A3 (de) | 1997-07-23 |
KR970023034A (ko) | 1997-05-30 |
DE69617873T2 (de) | 2002-08-08 |
KR100232915B1 (ko) | 1999-12-01 |
US5898653A (en) | 1999-04-27 |
EP0769777B1 (de) | 2001-12-12 |
EP0769777A2 (de) | 1997-04-23 |
JPH09115178A (ja) | 1997-05-02 |
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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 |