DE3852307D1 - Optischer kopf. - Google Patents
Optischer kopf.Info
- Publication number
- DE3852307D1 DE3852307D1 DE3852307T DE3852307T DE3852307D1 DE 3852307 D1 DE3852307 D1 DE 3852307D1 DE 3852307 T DE3852307 T DE 3852307T DE 3852307 T DE3852307 T DE 3852307T DE 3852307 D1 DE3852307 D1 DE 3852307D1
- Authority
- DE
- Germany
- Prior art keywords
- optical head
- optical
- head
- 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 - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title 1
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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
- G03C1/83—Organic dyestuffs therefor
- G03C1/832—Methine or polymethine dyes
-
- 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
- G11B7/0901—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 track following only
-
- 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
- G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
- G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
-
- 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
- G11B7/13—Optical detectors therefor
-
- 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
- G11B7/1384—Fibre optics
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
- G03C2001/7448—Dispersion
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C2200/00—Details
- G03C2200/44—Details pH value
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C2200/00—Details
- G03C2200/46—Details pKa value
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Optical Head (AREA)
- Optical Integrated Circuits (AREA)
- Semiconductor Lasers (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33621387 | 1987-12-29 | ||
JP19658388 | 1988-08-05 | ||
JP24919888 | 1988-10-03 | ||
PCT/JP1988/001344 WO1989006424A1 (en) | 1987-12-29 | 1988-12-28 | Optical head |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3852307D1 true DE3852307D1 (de) | 1995-01-12 |
DE3852307T2 DE3852307T2 (de) | 1995-06-01 |
Family
ID=27327262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3852307T Expired - Fee Related DE3852307T2 (de) | 1987-12-29 | 1988-12-28 | Optischer kopf. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4991919A (de) |
EP (1) | EP0357780B1 (de) |
KR (1) | KR920006309B1 (de) |
DE (1) | DE3852307T2 (de) |
WO (1) | WO1989006424A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68921065T2 (de) * | 1988-08-05 | 1995-09-28 | Matsushita Electric Ind Co Ltd | Optischer kopf. |
EP0360209A3 (de) * | 1988-09-19 | 1992-08-19 | Hitachi, Ltd. | Optischer Kopf und optisches Datenverarbeitungsgerät |
KR940005100B1 (ko) * | 1989-06-30 | 1994-06-10 | 마쯔시다덴기산교 가부시기가이샤 | 광디스크장치 |
KR930010473B1 (ko) * | 1989-09-22 | 1993-10-25 | 마쯔시다덴기산교 가부시기가이샤 | 편광소자 및 그것을 사용한 광학헤드장치 |
KR940008672B1 (ko) * | 1990-03-26 | 1994-09-24 | 마쯔시다덴기산교 가부시기가이샤 | 광결합장치 |
JP2574927B2 (ja) * | 1990-05-21 | 1997-01-22 | シャープ株式会社 | レーザプリンタ用光ヘッド |
EP0459790B1 (de) * | 1990-05-31 | 1996-04-17 | Mitsubishi Denki Kabushiki Kaisha | Optisches Aufzeichnungs- und Wiedergabegerät |
US5204516A (en) * | 1991-04-23 | 1993-04-20 | U.S. Philips Corporation | Planar optical scanning head having deficiency-correcting grating |
TW198114B (de) * | 1991-04-23 | 1993-01-11 | Philips Nv | |
US5274720A (en) * | 1991-08-22 | 1993-12-28 | Olympus Optical Co., Ltd. | Optical system having a ring-shaped waveguide |
JP3018687B2 (ja) * | 1991-12-12 | 2000-03-13 | 松下電器産業株式会社 | 走査型レーザー顕微鏡 |
JPH05334712A (ja) * | 1992-06-02 | 1993-12-17 | Hitachi Ltd | 光情報処理装置 |
US5276745A (en) * | 1992-10-15 | 1994-01-04 | Eastman Kodak Company | Integrated optic read/write head for optical data storage incorporating second harmonic generator, electro-optic tracking error actuator, and electro-optic modulator |
US5471548A (en) * | 1993-01-15 | 1995-11-28 | Eastman Kodak Company | Segmented waveguide gratings used as optical recording sensors |
US5815293A (en) * | 1993-02-01 | 1998-09-29 | Matsushita Electric Industrial Co., Ltd. | Compound objective lens having two focal points |
JP2532818B2 (ja) * | 1993-02-01 | 1996-09-11 | 松下電器産業株式会社 | 対物レンズおよび光ヘッド装置 |
US6307827B1 (en) * | 1997-08-29 | 2001-10-23 | Matsushita Electric Industrial Co., Ltd. | Optical device and information recording and reproducing device |
JP3635524B2 (ja) * | 1999-02-12 | 2005-04-06 | パイオニア株式会社 | 光導波路素子及び光ピックアップ |
ATA136499A (de) * | 1999-08-09 | 2001-10-15 | Leuchs Gerhard Dr | Einrichtung zum beleuchten eines objektes mit fokussiertem licht |
WO2004032118A1 (en) * | 2002-09-30 | 2004-04-15 | Seagate Technology Llc | Planar waveguide for heat assisted magnetic recording |
US8320722B1 (en) | 2010-04-13 | 2012-11-27 | Western Digital (Fremont), Llc | Non-linear optical grating |
US8422841B1 (en) | 2010-05-13 | 2013-04-16 | Western Digital (Fremont), Llc | Double optical grating |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58130448A (ja) * | 1982-01-28 | 1983-08-03 | Toshiba Corp | 光学的情報読取装置の回折格子レンズ |
NL8303932A (nl) * | 1982-11-17 | 1984-06-18 | Pioneer Electronic Corp | Opneeminrichting voor optische plaat. |
JPH0727659B2 (ja) * | 1984-06-08 | 1995-03-29 | 松下電器産業株式会社 | 光ピツクアツプ |
DE3586076D1 (de) * | 1984-09-03 | 1992-06-25 | Omron Tateisi Electronics Co | Vorrichtung zur verarbeitung optischer daten. |
DE3546795C2 (de) * | 1984-10-01 | 1993-09-23 | Mitsubishi Denki K.K., Tokio/Tokyo, Jp | |
DE3536497A1 (de) * | 1984-10-16 | 1986-04-17 | Mitsubishi Denki K.K., Tokio/Tokyo | Vorrichtung zur erfassung von fokussierungsfehlern in einer kopfanordnung fuer optische scheiben |
EP0202689B1 (de) * | 1985-05-24 | 1992-01-29 | Omron Tateisi Electronics Co. | Vorrichtung zur Verarbeitung optischer Daten |
JPS6273437A (ja) * | 1985-09-26 | 1987-04-04 | Mitsubishi Electric Corp | 光学式ヘツド装置 |
JPS6289250A (ja) * | 1985-10-16 | 1987-04-23 | Fuji Photo Film Co Ltd | 光デイスク用ピツクアツプ |
JPS6297144A (ja) * | 1985-10-24 | 1987-05-06 | Mitsubishi Electric Corp | 光ピツクアツプ |
US4743083A (en) * | 1985-12-30 | 1988-05-10 | Schimpe Robert M | Cylindrical diffraction grating couplers and distributed feedback resonators for guided wave devices |
JPS6371946A (ja) * | 1986-09-16 | 1988-04-01 | Ricoh Co Ltd | 光学的情報記録再生装置 |
JP2539406B2 (ja) * | 1987-02-04 | 1996-10-02 | 株式会社日立製作所 | 固体光ピツクアツプ |
JPS63220432A (ja) * | 1987-03-10 | 1988-09-13 | Toshiba Corp | 光学ヘツド |
JPS63229644A (ja) * | 1987-03-18 | 1988-09-26 | Matsushita Electric Ind Co Ltd | 光ピツクアツプ |
US4935911A (en) * | 1987-05-20 | 1990-06-19 | Ricoh Company, Ltd. | Optical head device for recording and reproducing information |
US4945525A (en) * | 1987-09-04 | 1990-07-31 | Sharp Kabushiki Kaisha | Optical information processing apparatus |
US4943129A (en) * | 1988-03-31 | 1990-07-24 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Tapered optical waveguide, waveguide type optical head using same and optical waveguide |
-
1988
- 1988-12-28 US US07/415,224 patent/US4991919A/en not_active Expired - Lifetime
- 1988-12-28 DE DE3852307T patent/DE3852307T2/de not_active Expired - Fee Related
- 1988-12-28 EP EP89900926A patent/EP0357780B1/de not_active Expired - Lifetime
- 1988-12-28 KR KR1019890701628A patent/KR920006309B1/ko not_active IP Right Cessation
- 1988-12-28 WO PCT/JP1988/001344 patent/WO1989006424A1/ja active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0357780B1 (de) | 1994-11-30 |
US4991919A (en) | 1991-02-12 |
KR900701001A (ko) | 1990-08-17 |
DE3852307T2 (de) | 1995-06-01 |
WO1989006424A1 (en) | 1989-07-13 |
KR920006309B1 (ko) | 1992-08-03 |
EP0357780A4 (en) | 1991-07-24 |
EP0357780A1 (de) | 1990-03-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |