JP2007508655A - 温度補正を有する読込み/書込み光学装置 - Google Patents
温度補正を有する読込み/書込み光学装置 Download PDFInfo
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- JP2007508655A JP2007508655A JP2006534871A JP2006534871A JP2007508655A JP 2007508655 A JP2007508655 A JP 2007508655A JP 2006534871 A JP2006534871 A JP 2006534871A JP 2006534871 A JP2006534871 A JP 2006534871A JP 2007508655 A JP2007508655 A JP 2007508655A
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- Prior art keywords
- data reading
- writing device
- sensitive structure
- optical data
- wavelength
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- 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.)
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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
-
- 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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
-
- 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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
- G11B7/1367—Stepped phase plates
-
- 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
-
- 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
- G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
-
- 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
- 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)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (16)
- 情報層に対する読込み/書込み用の光学データ読込み/書込み装置であって、
前記装置は、放射ビームを生成する少なくとも第1の放射線源と、前記情報層上で前記放射ビームを集束し、前記情報層によって反射された前記放射ビームを検出器上へと集束する光学系と、を有し、
前記光学系は、前記光学系の温度誘発性のデフォーカスを補正する波長高感度構造を組み込む、
光学データ読込み/書込み装置。 - 前記波長高感度構造は、前記光学系のプレコリメータ、ビーム・シェーパ、又はセンサレンズの一部分である、
請求項1記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、前記放射ビームに対する共通路の範囲外に位置決めされる、
請求項1又は2記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、前記少なくとも1つの放射線源と前記光学系のプレコリメータ/ビーム・シェーパとの間に位置決めされる、
請求項3記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、前記光学データ読込み/書込み装置の検出器要素とビームスプリッタ要素との間に位置決めされる、
請求項3記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、グレーティング構造である、
請求項1乃至5のうちいずれか一項記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、階段状の位相構造である、
請求項1乃至6のうちいずれか一項記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、非周期性の位相構造である、
請求項1乃至7のうちいずれか一項記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、回折構造である、
請求項1乃至8のうちいずれか一項記載の光学データ読込み/書込み装置。 - 情報層の異なる種類又は形式に対する読込み/書込み用の複数の放射線源を組み込む、
請求項1乃至9のうちいずれか一項記載の光学データ読込み/書込み装置。 - 前記波長高感度構造は、その夫々の放射線源に対面する、
請求項1乃至10のうちいずれか一項記載の光学データ読込み/書込み装置。 - 光学データ読込み/書込み装置における光学系の温度誘発性のデフォーカスを補正する方法であって、
前記光学系において波長高感度構造を有する段階を有し、
前記波長高感度構造は、前記デフォーカスを補正する、
方法。 - 前記波長高感度構造は、前記データ読込み/書込み装置の放射線源に対面する、
請求項12記載の方法。 - 前記光学系の少なくとも2つの要素においてデフォーカスを補正する段階を有する、
請求項12又は13記載の方法。 - 前記要素のうち各々は、関連付けられた波長高感度構造を有する、
請求項14記載の方法。 - 温度デフォーカスを補正する屈折プレコリメータ/ビーム・シェーパ/センサレンズであって、
温度デフォーカスを補正するよう適合された波長高感度構造を組み込む、
屈折プレコリメータ/ビーム・シェーパ/センサレンズ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03103812 | 2003-10-15 | ||
PCT/IB2004/052013 WO2005038783A2 (en) | 2003-10-15 | 2004-10-07 | A reading/writing optical device having temperature compensation |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2007508655A true JP2007508655A (ja) | 2007-04-05 |
Family
ID=34443017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006534871A Pending JP2007508655A (ja) | 2003-10-15 | 2004-10-07 | 温度補正を有する読込み/書込み光学装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080040737A1 (ja) |
EP (1) | EP1676268A2 (ja) |
JP (1) | JP2007508655A (ja) |
KR (1) | KR20070015362A (ja) |
CN (1) | CN1867977A (ja) |
WO (1) | WO2005038783A2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2065752A1 (en) * | 2007-11-23 | 2009-06-03 | Koninklijke Philips Electronics N.V. | Optical illumination apparatus for illuminating a sample with a line beam |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002082280A (ja) * | 2000-05-12 | 2002-03-22 | Konica Corp | 光ピックアップ装置、対物レンズ及びビームエキスパンダー |
WO2002031823A1 (en) * | 2000-10-08 | 2002-04-18 | Koninklijke Philips Electronics N.V. | Optical scanning device |
JP2003518703A (ja) * | 1999-12-24 | 2003-06-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光走査ヘッド |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0685233B2 (ja) * | 1986-06-27 | 1994-10-26 | 株式会社リコー | 半導体レ−ザ−光源装置 |
US5260828A (en) * | 1992-03-27 | 1993-11-09 | Polaroid Corporation | Methods and means for reducing temperature-induced variations in lenses and lens devices |
US5627847A (en) * | 1995-05-04 | 1997-05-06 | Regents Of The University Of Minnesota | Distortion-compensated phase grating and mode-selecting mirror for a laser |
US5991102A (en) * | 1994-11-25 | 1999-11-23 | Asahi Kogaku Kogyo Kabushiki Kaisha | Beam protecting device |
JPH10186230A (ja) * | 1996-10-29 | 1998-07-14 | Canon Inc | レンズ系及び光学機器 |
CN1114204C (zh) * | 1997-03-21 | 2003-07-09 | 株式会社三协精机制作所 | 光头装置 |
US6327241B1 (en) * | 1997-04-08 | 2001-12-04 | Seagate Technology Llc | Optical data storage system with lens mount |
US6154326A (en) * | 1998-03-19 | 2000-11-28 | Fuji Xerox Co., Ltd. | Optical head, disk apparatus, method for manufacturing optical head, and optical element |
JP3385213B2 (ja) * | 1998-05-29 | 2003-03-10 | ペンタックス株式会社 | 光ヘッド用対物レンズ |
TW495749B (en) * | 1998-08-03 | 2002-07-21 | Matsushita Electric Ind Co Ltd | Optical head |
US6072579A (en) * | 1998-08-27 | 2000-06-06 | Ricoh Company, Ltd. | Optical pickup apparatus having improved holographic optical element and photodetector |
US6411587B1 (en) * | 1999-10-08 | 2002-06-25 | Konica Corporation | Optical pickup optical system, optical pickup apparatus, coupling optical system, coupling optical system lens and recording/reproduction apparatus |
US6545807B2 (en) * | 1999-12-28 | 2003-04-08 | Pentax Corporation | Refractive-diffractive hybrid lens |
JP4196818B2 (ja) * | 2003-12-12 | 2008-12-17 | 日本ビクター株式会社 | 光ピックアップ装置 |
-
2004
- 2004-10-07 EP EP04770199A patent/EP1676268A2/en not_active Withdrawn
- 2004-10-07 KR KR1020067007184A patent/KR20070015362A/ko not_active Application Discontinuation
- 2004-10-07 WO PCT/IB2004/052013 patent/WO2005038783A2/en active Application Filing
- 2004-10-07 US US10/574,367 patent/US20080040737A1/en not_active Abandoned
- 2004-10-07 CN CNA2004800302909A patent/CN1867977A/zh active Pending
- 2004-10-07 JP JP2006534871A patent/JP2007508655A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003518703A (ja) * | 1999-12-24 | 2003-06-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光走査ヘッド |
JP2002082280A (ja) * | 2000-05-12 | 2002-03-22 | Konica Corp | 光ピックアップ装置、対物レンズ及びビームエキスパンダー |
WO2002031823A1 (en) * | 2000-10-08 | 2002-04-18 | Koninklijke Philips Electronics N.V. | Optical scanning device |
Also Published As
Publication number | Publication date |
---|---|
US20080040737A1 (en) | 2008-02-14 |
EP1676268A2 (en) | 2006-07-05 |
WO2005038783A2 (en) | 2005-04-28 |
CN1867977A (zh) | 2006-11-22 |
KR20070015362A (ko) | 2007-02-02 |
WO2005038783A3 (en) | 2005-06-02 |
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