DE69427714D1 - Zusammengesetzte Objetivlinse mit zwei Brennpunkten, und Vorrichtung mit dieser Linse - Google Patents

Zusammengesetzte Objetivlinse mit zwei Brennpunkten, und Vorrichtung mit dieser Linse

Info

Publication number
DE69427714D1
DE69427714D1 DE69427714T DE69427714T DE69427714D1 DE 69427714 D1 DE69427714 D1 DE 69427714D1 DE 69427714 T DE69427714 T DE 69427714T DE 69427714 T DE69427714 T DE 69427714T DE 69427714 D1 DE69427714 D1 DE 69427714D1
Authority
DE
Germany
Prior art keywords
lens
focal points
compound objective
objective lens
compound
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
Application number
DE69427714T
Other languages
English (en)
Other versions
DE69427714T2 (de
Inventor
Yoshiaki Komma
Sadao Mizuno
Seiji Nishino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69427714D1 publication Critical patent/DE69427714D1/de
Publication of DE69427714T2 publication Critical patent/DE69427714T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0945Methods for initialising servos, start-up sequences
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/02Objectives
    • G02B21/025Objectives with variable magnification
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/18Arrangements with more than one light path, e.g. for comparing two specimens
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/18Arrangements with more than one light path, e.g. for comparing two specimens
    • G02B21/20Binocular arrangements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4238Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in optical recording or readout devices
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/10Bifocal lenses; Multifocal lenses
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1814Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • G02B5/1819Plural gratings positioned on the same surface, e.g. array of gratings
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1842Gratings for image generation
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1866Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • G02B5/1871Transmissive phase gratings
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/18Diffraction gratings
    • G02B5/1876Diffractive Fresnel lenses; Zone plates; Kinoforms
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/32Holograms used as optical elements
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F9/00Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F9/00Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
    • G03F9/70Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
    • G03F9/7003Alignment type or strategy, e.g. leveling, global alignment
    • G03F9/7038Alignment for proximity or contact printer
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F9/00Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
    • G03F9/70Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
    • G03F9/7088Alignment mark detection, e.g. TTR, TTL, off-axis detection, array detector, video detection
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/127Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving detection of the number of sides, e.g. single or double, or layers, e.g. for multiple recording or reproducing layers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08511Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0901Disposition 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 for track following only
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0908Disposition 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 for focusing only
    • G11B7/0909Disposition 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 for focusing only by astigmatic methods
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0908Disposition 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 for focusing only
    • G11B7/0912Disposition 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 for focusing only by push-pull method
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353Diffractive elements, e.g. holograms or gratings
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369Active plates, e.g. liquid crystal panels or electrostrictive elements
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • G11B7/1374Objective lenses
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/139Numerical aperture control means
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B2007/0003Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • G11B2007/13727Compound 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/007Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
DE69427714T 1993-02-01 1994-01-31 Zusammengesetzte Objetivlinse mit zwei Brennpunkten, und Vorrichtung mit dieser Linse Expired - Lifetime DE69427714T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1443293 1993-02-01
JP19335393 1993-08-04

Publications (2)

Publication Number Publication Date
DE69427714D1 true DE69427714D1 (de) 2001-08-23
DE69427714T2 DE69427714T2 (de) 2002-05-08

Family

ID=26350383

Family Applications (8)

Application Number Title Priority Date Filing Date
DE69434045T Expired - Lifetime DE69434045T2 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse
DE69434502T Expired - Lifetime DE69434502T2 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse
DE69434710T Expired - Lifetime DE69434710T2 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse
DE69435325T Expired - Lifetime DE69435325D1 (de) 1993-02-01 1994-01-31 Sammelobjektiv mit zwei Brennpunkten und Vorrichtung damit
DE69434660T Expired - Lifetime DE69434660T2 (de) 1993-02-01 1994-01-31 Vorrichtung mit einer zusammengesetzten Objektivlinse mit zwei Brennpunkten
DE69427714T Expired - Lifetime DE69427714T2 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objetivlinse mit zwei Brennpunkten, und Vorrichtung mit dieser Linse
DE69429371T Expired - Lifetime DE69429371T2 (de) 1993-02-01 1994-01-31 Optische Platte
DE69435289T Expired - Lifetime DE69435289D1 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse

Family Applications Before (5)

Application Number Title Priority Date Filing Date
DE69434045T Expired - Lifetime DE69434045T2 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse
DE69434502T Expired - Lifetime DE69434502T2 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse
DE69434710T Expired - Lifetime DE69434710T2 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse
DE69435325T Expired - Lifetime DE69435325D1 (de) 1993-02-01 1994-01-31 Sammelobjektiv mit zwei Brennpunkten und Vorrichtung damit
DE69434660T Expired - Lifetime DE69434660T2 (de) 1993-02-01 1994-01-31 Vorrichtung mit einer zusammengesetzten Objektivlinse mit zwei Brennpunkten

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69429371T Expired - Lifetime DE69429371T2 (de) 1993-02-01 1994-01-31 Optische Platte
DE69435289T Expired - Lifetime DE69435289D1 (de) 1993-02-01 1994-01-31 Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse

Country Status (4)

Country Link
US (1) US5446565A (de)
EP (10) EP1381039B1 (de)
JP (2) JP2532818B2 (de)
DE (8) DE69434045T2 (de)

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US5815293A (en) * 1993-02-01 1998-09-29 Matsushita Electric Industrial Co., Ltd. Compound objective lens having two focal points
US5930214A (en) * 1994-01-19 1999-07-27 Kabushiki Kaisha Toshiba Recording/reproducing optical head apparatus compatible with different optical media
JPH07311337A (ja) * 1994-03-24 1995-11-28 Asahi Optical Co Ltd 光情報記録再生装置
JP3240846B2 (ja) * 1994-08-12 2001-12-25 松下電器産業株式会社 光ヘッド
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
DE69523260T2 (de) * 1994-11-15 2002-04-18 Nec Corp Optischer Kopf unter Verwendung der Hyperauflösungstechnik
KR100200837B1 (ko) * 1995-01-24 1999-06-15 윤종용 다층 기록막을 갖는 광디스크를 위한 광픽업
US5728324A (en) * 1995-01-31 1998-03-17 Digital Optics Corporation Molding diffractive optical elements
CN1110038C (zh) * 1995-01-31 2003-05-28 索尼公司 光记录媒体的再现设备
EP0725395B1 (de) * 1995-02-02 2002-04-10 Pioneer Electronic Corporation Optisches Abtastgerät und Identifizierungsgerät zum Identifizieren des Typs eines optischen Aufzeichnungsmediums
KR0156800B1 (ko) * 1995-02-10 1998-12-15 이대원 레이저 다이오드를 이용한 자동 초점 조절 장치
EP0727776B1 (de) * 1995-02-20 2003-01-15 Mitsubishi Denki Kabushiki Kaisha Objektivlinsenantriebsvorrichtung und optische Informationsaufzeichnungs-/-wiedergabevorrichtung
JP3067094B2 (ja) * 1995-02-22 2000-07-17 三洋電機株式会社 光再生装置
US6026065A (en) * 1995-03-04 2000-02-15 Lg Electronics Inc. Optical pick-up apparatus capable of reading data irrespective of disc type
JPH08248307A (ja) * 1995-03-10 1996-09-27 Sony Corp 対物レンズ、光ヘッド装置及び光ディスク再生装置
US5526338A (en) * 1995-03-10 1996-06-11 Yeda Research & Development Co. Ltd. Method and apparatus for storage and retrieval with multilayer optical disks
JP3471959B2 (ja) * 1995-03-10 2003-12-02 パイオニア株式会社 光ピックアップ装置
US5926450A (en) * 1995-03-15 1999-07-20 U.S. Philips Corporation Device for optically scanning record carriers of different thicknesses
CN1090362C (zh) * 1995-03-15 2002-09-04 皇家菲利浦电子有限公司 光扫描记录介质的装置
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EP1381034A3 (de) 2004-04-21
EP1376558A3 (de) 2004-04-21
DE69435325D1 (de) 2010-12-30
DE69434660T2 (de) 2006-11-16
DE69434710T2 (de) 2007-03-29
EP1736976A3 (de) 2008-10-01
DE69434660D1 (de) 2006-05-11
EP1381039B1 (de) 2006-03-15
DE69435289D1 (de) 2010-05-27
EP1577887A2 (de) 2005-09-21
EP1577887A3 (de) 2008-10-01
JP3677319B2 (ja) 2005-07-27
EP0610055B1 (de) 2001-07-18
DE69434045T2 (de) 2005-10-06
DE69429371D1 (de) 2002-01-17
EP1049084A2 (de) 2000-11-02
US5446565A (en) 1995-08-29
EP0992988A2 (de) 2000-04-12
DE69434502D1 (de) 2006-02-16
EP1381039A3 (de) 2004-03-31
DE69427714T2 (de) 2002-05-08
EP1049084B8 (de) 2005-07-27
DE69434502T2 (de) 2006-07-06
EP1049084A3 (de) 2003-03-12
DE69434045D1 (de) 2004-11-04
EP1376558B1 (de) 2005-10-05
EP0836178B1 (de) 2001-12-05
EP0992988A3 (de) 2002-08-28
EP1381034A2 (de) 2004-01-14
EP1381039A2 (de) 2004-01-14
EP0610055A3 (de) 1995-01-11
JPH0798431A (ja) 1995-04-11
DE69429371T2 (de) 2002-08-14
DE69434710D1 (de) 2006-05-24
EP1736976A2 (de) 2006-12-27
EP1381038A3 (de) 2004-03-31
JPH0862493A (ja) 1996-03-08
EP1381034B1 (de) 2010-04-14
EP0610055A2 (de) 1994-08-10
EP0836178A1 (de) 1998-04-15
EP1381038B1 (de) 2006-04-19
JP2532818B2 (ja) 1996-09-11
EP1376558A2 (de) 2004-01-02
EP1049084B1 (de) 2004-09-29
EP1736976B1 (de) 2010-11-17
EP1381038A2 (de) 2004-01-14

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