KR20060085721A - 호환형 광픽업 - Google Patents
호환형 광픽업 Download PDFInfo
- Publication number
- KR20060085721A KR20060085721A KR1020050006510A KR20050006510A KR20060085721A KR 20060085721 A KR20060085721 A KR 20060085721A KR 1020050006510 A KR1020050006510 A KR 1020050006510A KR 20050006510 A KR20050006510 A KR 20050006510A KR 20060085721 A KR20060085721 A KR 20060085721A
- Authority
- KR
- South Korea
- Prior art keywords
- light
- light source
- objective lens
- detection unit
- beam splitter
- Prior art date
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Classifications
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- 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
- G11B7/127—Lasers; Multiple laser arrays
- G11B7/1275—Two or more lasers having different wavelengths
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- 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
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- 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
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- 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
- G11B7/1376—Collimator lenses
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- 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
- G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
-
- 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
-
- 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)
Abstract
Description
Claims (5)
- 서로 다른 파장의 광을 출사하는 복수의 광원;상기 복수의 광원으로부터 각각 출사되는 광의 진행경로를 변환하는 광경로변환수단;상기 광경로변환수단쪽에서 입사되는 광을 기록매체에 집속시키는 대물렌즈;상기 대물렌즈 앞쪽에 설치되어 입사광을 시준하며, 또한, 구면수차 보정을 위하여 구동하는 콜리메이팅렌즈; 및단파장의 광 경로상에 배치되며, 색수차 보정을 위한 회절면을 갖는 회절광소자;를 포함하는 것을 특징으로 하는 호환용 광픽업.
- 제 1 항에 있어서,상기 복수의 광원은 BD용 단파장의 광을 출사하는 제 1 광원, DVD용 장파장을 출사하는 제 2 광원 및 CD용 장파장을 출사하는 제 3 광원을 포함하며,상기 광경로변환수단은 상기 제 1 광원으로부터 출사되는 광을 대물렌즈 측으로 반사시키는 제 1 빔스플리터, 상기 제 2 광원으로부터 출사되는 광은 반사시키고 상기 제 3 광원으로부터 출사되는 광은 투과시키는 제 2 빔스플리터 및 상기 제 1 빔스플리터를 경유한 광은 투과시키고 상기 제 2 빔스플리터를 경유한 광은 반사시키는 제 3 빔스플리터를 포함하는 것을 특징으로 하는 호환형 광픽업.
- 제 2 항에 있어서,상기 콜리메이팅렌즈는 상기 제 3 빔스플리터와 상기 대물렌즈와의 사이에 광축방향으로 이동하도록 배치되며,상기 회절광소자는 상기 제 1 빔스플리터와 제 3 빔스플리터와의 사이에 배치되고 이 회절광소자의 대물렌즈를 향하는 측면에 상기 회절면이 형성된 것을 특징으로 하는 호환형 광픽업.
- 제 2 항에 있어서,상기 기록매체에서 반사되고 대물렌즈 및 광경로변환수단을 경유한 광을 수광하여 정보신호 및/또는 오차신호를 검출하는 검출유닛을 더 포함하는 것을 특징으로 하는 호환형 광픽업.
- 제 4 항에 있어서,상기 검출유닛은 BD용 검출유닛, DVD용 검출유닛 및 CD용 검출유닛을 포함하며,상기 DVD용 검출유닛 및 상기 CD용 검출유닛은 각각 상기 제 2 광원 및 제 3 광원과 일체로 구성되는 것을 특징으로 하는 호환형 광픽업.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050006510A KR100680171B1 (ko) | 2005-01-25 | 2005-01-25 | 호환형 광픽업 |
CNB2005101258308A CN100373478C (zh) | 2005-01-25 | 2005-11-30 | 与多种类型介质兼容的光学拾取器 |
US11/329,069 US7782734B2 (en) | 2005-01-25 | 2006-01-11 | Optical pickup which is compatible with multiple types of media |
EP06100790A EP1684277B1 (en) | 2005-01-25 | 2006-01-24 | Optical pickup which is compatible with multiple types of media |
DE602006015865T DE602006015865D1 (de) | 2005-01-25 | 2006-01-24 | Mit mehreren Medientypen kompatibler optischer Lesekopf |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050006510A KR100680171B1 (ko) | 2005-01-25 | 2005-01-25 | 호환형 광픽업 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060085721A true KR20060085721A (ko) | 2006-07-28 |
KR100680171B1 KR100680171B1 (ko) | 2007-02-08 |
Family
ID=36257921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020050006510A KR100680171B1 (ko) | 2005-01-25 | 2005-01-25 | 호환형 광픽업 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7782734B2 (ko) |
EP (1) | EP1684277B1 (ko) |
KR (1) | KR100680171B1 (ko) |
CN (1) | CN100373478C (ko) |
DE (1) | DE602006015865D1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4840167B2 (ja) * | 2007-01-31 | 2011-12-21 | 船井電機株式会社 | 光ディスク装置 |
KR101309704B1 (ko) * | 2009-08-19 | 2013-09-17 | 도시바삼성스토리지테크놀러지코리아 주식회사 | 광픽업 장치 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3864755B2 (ja) * | 1999-01-22 | 2007-01-10 | コニカミノルタホールディングス株式会社 | 光ピックアップ装置用対物レンズ、及び光ピックアップ装置 |
JP2000285500A (ja) * | 1999-03-26 | 2000-10-13 | Konica Corp | 光情報記録媒体用光ピックアップ装置、音声および/または画像の記録再生装置および対物レンズ |
JP4060007B2 (ja) * | 1999-04-23 | 2008-03-12 | ペンタックス株式会社 | 光ディスク装置の光学系 |
AU2002210950A1 (en) * | 2000-10-30 | 2002-05-15 | Konica Corporation | Objective lens, light converging optical system, optical pickup apparatus, and recording/reproducing apparatus |
TWI237819B (en) * | 2001-05-17 | 2005-08-11 | Konica Corp | Optical pick-up device and objective lens used therein |
JP2003036559A (ja) * | 2001-05-17 | 2003-02-07 | Konica Corp | 光ピックアップ装置及び光ピックアップ装置用の対物レンズ |
JP2003059080A (ja) * | 2001-08-09 | 2003-02-28 | Matsushita Electric Ind Co Ltd | 光ヘッド装置及び光学情報記録再生装置 |
JP2004145906A (ja) | 2001-10-02 | 2004-05-20 | Matsushita Electric Ind Co Ltd | 光ヘッド装置及びそれを用いた光情報装置 |
JP2003196860A (ja) * | 2001-12-27 | 2003-07-11 | Ricoh Co Ltd | 光ピックアップ装置及び光ディスク装置 |
TW200502670A (en) | 2002-11-21 | 2005-01-16 | Konica Minolta Holdings Inc | Objective lens, optical system and optical pickup apparatus |
US7248409B2 (en) | 2002-11-25 | 2007-07-24 | Matsushita Electric Industrial Co., Ltd. | Optical element, optical lens, optical head apparatus, optical information apparatus, computer, optical information medium player, car navigation system, optical information medium recorder, and optical information medium server |
EP1471514A3 (en) | 2003-04-22 | 2006-10-04 | Konica Minolta Opto, Inc. | Optical pickup device, optical information recording and reproducing apparatus, expander lens, coupling lens and chromatic aberration correcting optical element |
JP2005011417A (ja) * | 2003-06-18 | 2005-01-13 | Samsung Yokohama Research Institute Co Ltd | 光ピックアップ装置及びそれを備えた光情報記録/再生装置 |
JP2005141892A (ja) * | 2003-10-16 | 2005-06-02 | Nec Corp | 光ヘッド装置および光学式情報記録又は再生装置 |
US20050105446A1 (en) * | 2003-11-14 | 2005-05-19 | Konica Minolta Opto, Inc. | Optical pickup apparatus |
-
2005
- 2005-01-25 KR KR1020050006510A patent/KR100680171B1/ko active IP Right Grant
- 2005-11-30 CN CNB2005101258308A patent/CN100373478C/zh not_active Expired - Fee Related
-
2006
- 2006-01-11 US US11/329,069 patent/US7782734B2/en not_active Expired - Fee Related
- 2006-01-24 EP EP06100790A patent/EP1684277B1/en not_active Expired - Fee Related
- 2006-01-24 DE DE602006015865T patent/DE602006015865D1/de active Active
Also Published As
Publication number | Publication date |
---|---|
DE602006015865D1 (de) | 2010-09-16 |
CN1815581A (zh) | 2006-08-09 |
KR100680171B1 (ko) | 2007-02-08 |
EP1684277A2 (en) | 2006-07-26 |
EP1684277B1 (en) | 2010-08-04 |
US7782734B2 (en) | 2010-08-24 |
EP1684277A3 (en) | 2008-07-09 |
US20060164953A1 (en) | 2006-07-27 |
CN100373478C (zh) | 2008-03-05 |
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