CN1497559A - 光拾取器和使用它的光学记录和/或再现装置 - Google Patents
光拾取器和使用它的光学记录和/或再现装置 Download PDFInfo
- Publication number
- CN1497559A CN1497559A CNA2003101138716A CN200310113871A CN1497559A CN 1497559 A CN1497559 A CN 1497559A CN A2003101138716 A CNA2003101138716 A CN A2003101138716A CN 200310113871 A CN200310113871 A CN 200310113871A CN 1497559 A CN1497559 A CN 1497559A
- Authority
- CN
- China
- Prior art keywords
- light
- picker
- photodetector
- grating
- reflection
- 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.)
- Granted
Links
Images
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
- G11B7/1395—Beam splitters or combiners
-
- 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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
- G11B7/1263—Power control during transducing, e.g. by monitoring
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (29)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR63845/02 | 2002-10-18 | ||
KR10-2002-0063845A KR100480623B1 (ko) | 2002-10-18 | 2002-10-18 | 광 노이즈를 차단한 광픽업 장치 및 이를 채용한 광기록및/또는 재생장치 |
KR63845/2002 | 2002-10-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1497559A true CN1497559A (zh) | 2004-05-19 |
CN1321414C CN1321414C (zh) | 2007-06-13 |
Family
ID=32960113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2003101138716A Expired - Fee Related CN1321414C (zh) | 2002-10-18 | 2003-10-18 | 光拾取器和使用它的光学记录和/或再现装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7355953B2 (zh) |
KR (1) | KR100480623B1 (zh) |
CN (1) | CN1321414C (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006184397A (ja) * | 2004-12-27 | 2006-07-13 | Konica Minolta Opto Inc | 反射光学素子およびそれを備えた光ピックアップ |
KR100825640B1 (ko) * | 2006-09-25 | 2008-04-25 | 주식회사 대우일렉트로닉스 | 광정보 재생장치와 재생방법 |
JP2012018731A (ja) * | 2010-07-08 | 2012-01-26 | Hitachi-Lg Data Storage Inc | 光ディスク装置及び光ディスク装置におけるレーザ光パワーの制御方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60257584A (ja) * | 1984-06-04 | 1985-12-19 | Sharp Corp | 光検出器内蔵型半導体レ−ザ |
US4690558A (en) * | 1984-12-18 | 1987-09-01 | Kawasaki Steel Corporation | Method of laser emission spectroscopical analysis and apparatus therefor |
JPS61250849A (ja) * | 1985-04-30 | 1986-11-07 | Olympus Optical Co Ltd | 光学的情報記録再生装置 |
JPH0625675B2 (ja) * | 1989-08-30 | 1994-04-06 | オ−クマ株式会社 | 平均化回折モアレ位置検出器 |
TW218427B (zh) * | 1991-06-04 | 1994-01-01 | Ibm | |
US5206852A (en) * | 1991-06-29 | 1993-04-27 | Samsung Electronics Co., Ltd. | High-density recording optical head |
JPH0572497A (ja) * | 1991-09-11 | 1993-03-26 | Sharp Corp | 一体型光素子および基板型光素子 |
US5283434A (en) * | 1991-12-20 | 1994-02-01 | Canon Kabushiki Kaisha | Displacement detecting device with integral optics |
JPH07169090A (ja) * | 1993-12-13 | 1995-07-04 | Ricoh Co Ltd | 光情報並列記録再生装置 |
DE69621678T2 (de) * | 1995-03-14 | 2002-11-28 | Kabushiki Kaisha Toshiba, Kawasaki | Lichtdetektor |
JPH0963111A (ja) * | 1995-08-23 | 1997-03-07 | Sankyo Seiki Mfg Co Ltd | 光ピックアップ装置 |
KR100209608B1 (ko) * | 1995-09-15 | 1999-07-15 | 구자홍 | 광 출력검지 장치 |
KR100269710B1 (ko) * | 1996-01-23 | 2000-10-16 | 윤종용 | 광출력장치 및 이를 채용한 광픽업장치 |
JPH11213429A (ja) * | 1998-01-30 | 1999-08-06 | Sony Corp | 相変化型光ディスクの記録装置及び記録方法 |
JPH11273119A (ja) * | 1998-03-24 | 1999-10-08 | Pioneer Electron Corp | 光学式ピックアップ装置 |
KR100294886B1 (ko) * | 1998-04-15 | 2001-07-12 | 윤종용 | 호환형 광픽업장치 |
US6584060B1 (en) * | 1998-06-24 | 2003-06-24 | Ricoh Company, Ltd. | Optical pick-up device for recording/reading information on optical recording medium |
US6674709B1 (en) * | 1999-04-23 | 2004-01-06 | Matsushita Electric Industrial Co., Ltd. | Optical head apparatus |
KR100699809B1 (ko) * | 1999-06-10 | 2007-03-27 | 삼성전자주식회사 | 광픽업장치 |
US6850360B1 (en) * | 2001-04-16 | 2005-02-01 | Bookham, Inc. | Raman amplifier systems with diagnostic capabilities |
-
2002
- 2002-10-18 KR KR10-2002-0063845A patent/KR100480623B1/ko not_active IP Right Cessation
-
2003
- 2003-10-17 US US10/686,785 patent/US7355953B2/en not_active Expired - Fee Related
- 2003-10-18 CN CNB2003101138716A patent/CN1321414C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100480623B1 (ko) | 2005-03-31 |
US7355953B2 (en) | 2008-04-08 |
US20040179456A1 (en) | 2004-09-16 |
KR20040035111A (ko) | 2004-04-29 |
CN1321414C (zh) | 2007-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: TOSHIBA SAMSUNG STORAGE TECHNO Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD. Effective date: 20140722 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140722 Address after: Gyeonggi Do, South Korea Patentee after: Toshiba Samsung Storage Technology Korea Co., Address before: Gyeonggi Do, South Korea Patentee before: Samsung Electronics Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20161018 |