DE69330357T2 - Optische Speichervorrichtung - Google Patents
Optische SpeichervorrichtungInfo
- Publication number
- DE69330357T2 DE69330357T2 DE69330357T DE69330357T DE69330357T2 DE 69330357 T2 DE69330357 T2 DE 69330357T2 DE 69330357 T DE69330357 T DE 69330357T DE 69330357 T DE69330357 T DE 69330357T DE 69330357 T2 DE69330357 T2 DE 69330357T2
- Authority
- DE
- Germany
- Prior art keywords
- storage device
- optical storage
- optical
- storage
- 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
Links
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
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- 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
-
- 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
-
- 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
- G11B7/1359—Single prisms
-
- 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
- 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
- G11B7/0908—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 for focusing only
- G11B7/0912—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 for focusing only by push-pull method
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S359/00—Optical: systems and elements
- Y10S359/90—Methods
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21110892 | 1992-08-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69330357D1 DE69330357D1 (de) | 2001-07-19 |
DE69330357T2 true DE69330357T2 (de) | 2001-10-31 |
Family
ID=16600548
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69319676T Expired - Lifetime DE69319676T2 (de) | 1992-08-07 | 1993-08-03 | Optisches System und Gerät für Bildinformation |
DE69330357T Expired - Lifetime DE69330357T2 (de) | 1992-08-07 | 1993-08-03 | Optische Speichervorrichtung |
DE69331020T Expired - Lifetime DE69331020T2 (de) | 1992-08-07 | 1993-08-03 | Optische Speichervorrichtung |
DE69332730T Expired - Lifetime DE69332730T2 (de) | 1992-08-07 | 1993-08-03 | Optisches Speichergerät |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69319676T Expired - Lifetime DE69319676T2 (de) | 1992-08-07 | 1993-08-03 | Optisches System und Gerät für Bildinformation |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69331020T Expired - Lifetime DE69331020T2 (de) | 1992-08-07 | 1993-08-03 | Optische Speichervorrichtung |
DE69332730T Expired - Lifetime DE69332730T2 (de) | 1992-08-07 | 1993-08-03 | Optisches Speichergerät |
Country Status (3)
Country | Link |
---|---|
US (1) | US5644413A (de) |
EP (4) | EP0790606B1 (de) |
DE (4) | DE69319676T2 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3191200B2 (ja) * | 1994-11-10 | 2001-07-23 | コニカ株式会社 | 光情報記録媒体の記録再生装置 |
CN1075221C (zh) * | 1995-10-17 | 2001-11-21 | 株式会社三协精机制作所 | 光头装置 |
JP2801176B2 (ja) * | 1995-11-15 | 1998-09-21 | エルジー電子株式会社 | 対物レンズ及びそれを具備した光ピックアップ装置 |
KR0179138B1 (ko) * | 1995-12-01 | 1999-04-15 | 구자홍 | 대물렌즈 |
KR100219605B1 (ko) * | 1996-06-15 | 1999-09-01 | 윤종용 | 광픽업장치 |
JP2910689B2 (ja) * | 1996-06-20 | 1999-06-23 | 日本電気株式会社 | 光ヘッド |
US6222812B1 (en) | 1996-08-29 | 2001-04-24 | Samsung Electronics Co., Ltd. | Optical pickup using an optical phase plate |
KR100263154B1 (ko) * | 1996-08-29 | 2000-09-01 | 윤종용 | 광학적 위상판을 사용한 광픽업 |
US6275461B1 (en) | 1996-08-29 | 2001-08-14 | Samsung Electronic Co., Ltd. | Optical pickup using an optical phase plate |
US6639889B1 (en) | 1997-02-13 | 2003-10-28 | Samsung Electronics Co., Ltd. | Recording/reproducing apparatus including an optical pickup having an objective lens compatible with a plurality of optical disk formats |
US6304540B1 (en) | 1998-03-30 | 2001-10-16 | Samsung Electronics Co., Ltd. | Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens |
US6067194A (en) * | 1997-09-29 | 2000-05-23 | Leica Camera Ag | Image stabilizing instrument |
JP2000131603A (ja) | 1998-10-22 | 2000-05-12 | Sony Corp | 光学ヘッド及び記録再生装置 |
JP2000311377A (ja) * | 1999-04-28 | 2000-11-07 | Sharp Corp | 光ピックアップ装置 |
JP3659089B2 (ja) * | 1999-10-25 | 2005-06-15 | 株式会社日立製作所 | 光ヘッド及びそれを用いた光学的情報媒体記録再生装置 |
KR100809971B1 (ko) * | 1999-12-15 | 2008-03-07 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광학 주사장치 |
US6631302B1 (en) * | 2000-04-06 | 2003-10-07 | Dphi Acquisitions, Inc. | System and method for aligning components of optical head |
KR100694032B1 (ko) * | 2000-04-17 | 2007-03-12 | 삼성전자주식회사 | 대물렌즈장치 및 이를 적용한 광픽업 장치 |
JP4903300B2 (ja) | 2000-07-31 | 2012-03-28 | 旭硝子株式会社 | 光学装置 |
WO2002033700A2 (en) * | 2000-10-16 | 2002-04-25 | Konica Corporation | Objective lens, coupling lens, light converging optical system, and optical pick-up apparatus |
JP4334127B2 (ja) * | 2000-10-17 | 2009-09-30 | Hoya株式会社 | 眼光学球面レンズの評価装置 |
TW571116B (en) * | 2001-02-28 | 2004-01-11 | Sony Corp | Optical pickup-use object lens, optical pickup and optical disk unit |
US6738324B2 (en) * | 2001-05-29 | 2004-05-18 | Matsushita Electric Industrial Co. | Recording and/or reproduction apparatus |
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 |
CN1741155B (zh) * | 2001-10-02 | 2010-04-14 | 松下电器产业株式会社 | 光读写头装置和使用该光读写头装置的光信息装置 |
US7129508B2 (en) * | 2002-01-18 | 2006-10-31 | Honeywell International Inc. | Compact VCSEL sensor with multiple sensing capabilities |
KR20030093683A (ko) | 2002-06-05 | 2003-12-11 | 삼성전자주식회사 | 호환형 광픽업 |
JP2004127482A (ja) * | 2002-08-07 | 2004-04-22 | Sharp Corp | 光ピックアップ装置 |
AU2003259476A1 (en) * | 2002-09-19 | 2004-04-08 | Koninklijke Philips Electronics N.V. | Optical scanning device |
KR100480638B1 (ko) * | 2002-12-10 | 2005-03-31 | 삼성전자주식회사 | 광픽업장치 |
DE10300843A1 (de) * | 2003-01-10 | 2004-07-22 | Deutsche Thomson-Brandt Gmbh | Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger |
JP4329608B2 (ja) * | 2004-04-23 | 2009-09-09 | コニカミノルタオプト株式会社 | 対物レンズ、光ピックアップ装置及び光情報記録再生装置 |
JPWO2006054383A1 (ja) * | 2004-11-16 | 2008-05-29 | 松下電器産業株式会社 | 光ピックアップ装置 |
US7367759B2 (en) * | 2004-12-07 | 2008-05-06 | A.M. Precision Machining, Inc. | Surface relief grating image machining process and product |
JP2007042154A (ja) * | 2005-07-29 | 2007-02-15 | Fujinon Corp | 光記録媒体用対物光学系およびこれを用いた光ピックアップ装置 |
DE102006012225A1 (de) * | 2006-03-16 | 2007-09-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Optisches Element, Verfahren zu dessen Herstellung und Vorrichtung zur Durchführung des Verfahrens |
US20080043596A1 (en) * | 2006-08-21 | 2008-02-21 | Kazutaka Noguchi | Objective lens and optical pickup apparatus |
US7995443B2 (en) * | 2007-07-30 | 2011-08-09 | International Business Machines Corporation | Apparatus and method to store information in a holographic data storage medium |
JP5235619B2 (ja) * | 2008-11-12 | 2013-07-10 | キヤノン株式会社 | 光学素子及びそれを有する光学系 |
CN109991702B (zh) * | 2017-12-29 | 2022-06-07 | 住友电气工业株式会社 | 具有双透镜系统和监测用光电二极管的光学组件 |
CN108309559A (zh) * | 2018-02-05 | 2018-07-24 | 苏州宣嘉光电科技有限公司 | 诱导视网膜产生和释放多巴胺并激活多巴胺受体d1的方法及眼科治疗仪器 |
Family Cites Families (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3125626A (en) * | 1964-03-17 | Zonal | ||
DE3421705C2 (de) * | 1984-06-12 | 1986-10-02 | Ingolf Dr. 3300 Braunschweig Weingärtner | Abtastobjektiv mit einem Hologramm |
JPH0616121B2 (ja) * | 1985-02-19 | 1994-03-02 | 松下電器産業株式会社 | フレネルレンズおよびその製造方法 |
JPH087329B2 (ja) * | 1986-05-19 | 1996-01-29 | コニカ株式会社 | 光情報の記録再生用光学系 |
EP0253403B1 (de) * | 1986-07-18 | 1993-07-14 | Nec Corporation | Doppelbrechendes Beugungsgitter und optischer Kopf, in welchem ein linearpolarisierter Strahl auf dieses Gitter gelenkt wird |
KR910002322B1 (ko) * | 1986-09-20 | 1991-04-11 | 후지쓰 가부시끼가이샤 | 회절격자렌즈 조립체를 구비하고 있는 광학시스템 |
US5202867A (en) * | 1987-01-29 | 1993-04-13 | Canon Kabushiki Kaisha | Condensing optical system with corrected chromatic aberration, and information recording/reproducing apparatus using this optical system |
US4929044A (en) * | 1987-05-13 | 1990-05-29 | Hitachi, Ltd. | Optical pickup using waveguide |
EP0305169B1 (de) * | 1987-08-24 | 1994-05-11 | Sharp Kabushiki Kaisha | Optische Abtastvorrichtung und optische Gitteranordnung dazu |
US4776652A (en) * | 1987-10-01 | 1988-10-11 | Camber Corporation | Optical head having two holographic optical elements, with one element inclined relative to the other |
US4929823A (en) * | 1987-10-05 | 1990-05-29 | Matsushita Electric Industrial Co., Ltd. | Optical pickup head with holographic servo signal detection using a spot size detection system |
JP2723949B2 (ja) * | 1988-01-27 | 1998-03-09 | 株式会社日立製作所 | 光情報読取り装置 |
US4927247A (en) * | 1988-05-13 | 1990-05-22 | Matsushita Electric Industrial Co., Ltd. | Objective lens for optical disk system and optical head using the same |
JPH01298540A (ja) * | 1988-05-26 | 1989-12-01 | Matsushita Electric Ind Co Ltd | 光ヘッド |
JPH01311428A (ja) * | 1988-06-09 | 1989-12-15 | Matsushita Electric Ind Co Ltd | 光ヘッド装置及びこれを用いた光情報装置 |
WO1990002963A1 (en) * | 1988-09-12 | 1990-03-22 | Johnson Kenneth C | Dispersion-compensating diffraction grating |
US5062098A (en) * | 1988-10-19 | 1991-10-29 | Matsushita Electric Industrial Co., Ltd. | Optical pick-up device having holographic element |
US5015835A (en) * | 1988-12-23 | 1991-05-14 | Ricoh Company, Ltd. | Optical information reading and writing device with diffraction means |
JP2672620B2 (ja) * | 1989-01-12 | 1997-11-05 | 松下電器産業株式会社 | 光ヘッド装置及びその組立方法 |
FR2642530A1 (fr) * | 1989-01-30 | 1990-08-03 | Seiko Epson Corp | Mecanisme de focalisation et tete optique |
JPH03173942A (ja) * | 1989-01-30 | 1991-07-29 | Seiko Epson Corp | フォーカシング機構及び光学ヘッド |
FR2642883B1 (de) * | 1989-02-09 | 1995-06-02 | Asahi Optical Co Ltd | |
JP3108695B2 (ja) * | 1989-02-09 | 2000-11-13 | 旭光学工業株式会社 | 光情報記録再生装置の光学系 |
JP2902435B2 (ja) * | 1989-02-28 | 1999-06-07 | 旭光学工業株式会社 | 光情報記録再生装置用対物レンズ系 |
US5085496A (en) * | 1989-03-31 | 1992-02-04 | Sharp Kabushiki Kaisha | Optical element and optical pickup device comprising it |
EP0405444B1 (de) * | 1989-06-26 | 1997-09-03 | Nec Corporation | Optisches System |
EP0452793B1 (de) * | 1990-04-12 | 1998-01-28 | Matsushita Electric Industrial Co., Ltd. | Optischer Kopf mit hologrammverbundener Objektivlinse |
CA2043978C (en) * | 1990-06-13 | 1999-08-10 | Yoshio Yoshida | Polarization diffraction element and polarization detector employing the same |
JPH0450813A (ja) * | 1990-06-14 | 1992-02-19 | Olympus Optical Co Ltd | 眼鏡レンズ |
JPH04155628A (ja) * | 1990-10-19 | 1992-05-28 | Hitachi Ltd | 光学式情報記憶装置 |
US5191624A (en) * | 1990-09-19 | 1993-03-02 | Hitachi, Ltd. | Optical information storing apparatus and method for production of optical deflector |
JP2851935B2 (ja) * | 1990-09-19 | 1999-01-27 | 株式会社日立製作所 | コリニア型光偏向器及びその製造方法並びに光偏向装置及び光集積ヘッド及び光情報記録再生装置 |
JPH04132024A (ja) * | 1990-09-21 | 1992-05-06 | Olympus Optical Co Ltd | 光学式情報記録再生装置 |
JP2532991B2 (ja) * | 1990-10-18 | 1996-09-11 | 三洋電機株式会社 | 冷蔵庫 |
JPH04318333A (ja) * | 1991-04-17 | 1992-11-09 | Matsushita Electric Ind Co Ltd | 光ヘッド装置 |
US5148314A (en) * | 1991-06-06 | 1992-09-15 | Chen Chungte W | Optical systems employing refractive and diffractive optical elements to correct for chromatic aberration |
US5212572A (en) * | 1991-11-22 | 1993-05-18 | International Business Machines Corporation | Optical data storage system with compact holographic polarization-sensing or reflectivity-sensing optical storage head |
JP3200171B2 (ja) * | 1992-06-10 | 2001-08-20 | パイオニア株式会社 | 光ディスクプレーヤ |
US5349471A (en) * | 1993-02-16 | 1994-09-20 | The University Of Rochester | Hybrid refractive/diffractive achromatic lens for optical data storage systems |
-
1993
- 1993-08-03 DE DE69319676T patent/DE69319676T2/de not_active Expired - Lifetime
- 1993-08-03 EP EP97107053A patent/EP0790606B1/de not_active Expired - Lifetime
- 1993-08-03 EP EP01106015A patent/EP1120779B1/de not_active Expired - Lifetime
- 1993-08-03 EP EP93306139A patent/EP0587297B1/de not_active Expired - Lifetime
- 1993-08-03 DE DE69330357T patent/DE69330357T2/de not_active Expired - Lifetime
- 1993-08-03 DE DE69331020T patent/DE69331020T2/de not_active Expired - Lifetime
- 1993-08-03 EP EP97107052A patent/EP0790605B1/de not_active Expired - Lifetime
- 1993-08-03 DE DE69332730T patent/DE69332730T2/de not_active Expired - Lifetime
-
1995
- 1995-07-12 US US08/501,351 patent/US5644413A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69331020D1 (de) | 2001-11-29 |
EP0790605A2 (de) | 1997-08-20 |
EP0790606A3 (de) | 1999-04-07 |
EP1120779B1 (de) | 2003-02-26 |
DE69331020T2 (de) | 2002-06-06 |
DE69332730D1 (de) | 2003-04-03 |
EP1120779A3 (de) | 2001-08-08 |
EP0790606A2 (de) | 1997-08-20 |
DE69319676D1 (de) | 1998-08-20 |
DE69330357D1 (de) | 2001-07-19 |
EP0790605A3 (de) | 1999-04-07 |
DE69332730T2 (de) | 2003-10-23 |
EP0790606B1 (de) | 2001-10-24 |
EP0790605B1 (de) | 2001-06-13 |
EP1120779A2 (de) | 2001-08-01 |
EP0587297B1 (de) | 1998-07-15 |
US5644413A (en) | 1997-07-01 |
EP0587297A3 (en) | 1994-06-08 |
EP0587297A2 (de) | 1994-03-16 |
DE69319676T2 (de) | 1998-12-10 |
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