DE69627752D1 - Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen - Google Patents
Optische Wiedergabekopfvorrichtung für verschiedene PlattentypenInfo
- Publication number
- DE69627752D1 DE69627752D1 DE69627752T DE69627752T DE69627752D1 DE 69627752 D1 DE69627752 D1 DE 69627752D1 DE 69627752 T DE69627752 T DE 69627752T DE 69627752 T DE69627752 T DE 69627752T DE 69627752 D1 DE69627752 D1 DE 69627752D1
- Authority
- DE
- Germany
- Prior art keywords
- head device
- playback head
- disc types
- various disc
- optical playback
- 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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
- G11B7/1367—Stepped phase plates
-
- 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
- G02B5/18—Diffraction gratings
- G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
- G02B5/188—Plurality of such optical elements formed in or on a supporting substrate
-
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
-
- 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
-
- 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
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- 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
- G11B7/12—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
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
-
- 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
- G11B7/139—Numerical aperture control 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
- 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
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
-
- 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
-
- 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
- G11B2007/13727—Compound 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
-
- 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
- G11B7/0903—Multi-beam tracking systems
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Optical Head (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13767595 | 1995-06-05 | ||
JP7208026A JP2713257B2 (ja) | 1995-08-15 | 1995-08-15 | 光ヘッド装置 |
JP7230099A JP2725653B2 (ja) | 1995-09-07 | 1995-09-07 | 光ヘッド装置 |
JP8049781A JP3047351B2 (ja) | 1995-06-05 | 1996-03-07 | 光ヘッド装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69627752D1 true DE69627752D1 (de) | 2003-06-05 |
DE69627752T2 DE69627752T2 (de) | 2003-10-16 |
Family
ID=27462412
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69627752T Expired - Lifetime DE69627752T2 (de) | 1995-06-05 | 1996-06-05 | Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen |
DE69635559T Expired - Lifetime DE69635559T2 (de) | 1995-06-05 | 1996-06-05 | Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69635559T Expired - Lifetime DE69635559T2 (de) | 1995-06-05 | 1996-06-05 | Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen |
Country Status (3)
Country | Link |
---|---|
US (1) | US5696750A (de) |
EP (2) | EP1109164B1 (de) |
DE (2) | DE69627752T2 (de) |
Families Citing this family (105)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69627944T2 (de) * | 1995-08-31 | 2004-04-22 | Sanyo Electric Co., Ltd., Moriguchi | Aufzeichnungs-/Wiedergabegerät für optische Platten zur Aufzeichnung/Wiedergabe von Information auf/aus unterschiedlichen optischen Platten |
US6049518A (en) * | 1995-08-31 | 2000-04-11 | Sanyo Electric Co., Ltd. | Optical disc recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards |
JP3062099B2 (ja) * | 1996-02-06 | 2000-07-10 | 日本電気株式会社 | 光ヘッド装置 |
US6259668B1 (en) * | 1996-02-14 | 2001-07-10 | Samsung Electronics Co., Ltd. | Recording/reproducing apparatus having an optical pickup device to read from and record information to disks of different thicknesses |
JPH1055566A (ja) * | 1996-04-26 | 1998-02-24 | Daewoo Electron Co Ltd | 光ピックアップ装置 |
KR100189910B1 (ko) * | 1996-05-15 | 1999-06-01 | 윤종용 | 광픽업장치 |
JPH1055567A (ja) * | 1996-05-31 | 1998-02-24 | Daewoo Electron Co Ltd | 光ピックアップシステム |
KR100234261B1 (ko) * | 1996-06-07 | 1999-12-15 | 윤종용 | 호환형 광픽업장치 |
JP2910689B2 (ja) * | 1996-06-20 | 1999-06-23 | 日本電気株式会社 | 光ヘッド |
KR980011158A (ko) * | 1996-07-31 | 1998-04-30 | 배순훈 | 광 픽-업장치 |
US6275461B1 (en) | 1996-08-29 | 2001-08-14 | Samsung Electronic Co., Ltd. | Optical pickup using an optical phase plate |
US6222812B1 (en) | 1996-08-29 | 2001-04-24 | Samsung Electronics Co., Ltd. | Optical pickup using an optical phase plate |
US6449237B1 (en) | 1996-08-29 | 2002-09-10 | Samsung Electronics Co., Ltd. | Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure |
KR100346398B1 (ko) * | 1998-10-23 | 2002-10-25 | 삼성전자 주식회사 | 계단형회절격자구조를갖는평판렌즈를채용하여cd-rw에호환하는dvd용광기록/픽업헤드 |
KR100263154B1 (ko) * | 1996-08-29 | 2000-09-01 | 윤종용 | 광학적 위상판을 사용한 광픽업 |
US6765857B2 (en) | 1996-09-03 | 2004-07-20 | Samsung Electronics Co., Ltd. | Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure |
KR100224621B1 (ko) * | 1996-09-16 | 1999-10-15 | 윤종용 | 두께가 다른 디스크 호환을 위한 기록재생용 광픽업 |
JPH10106019A (ja) * | 1996-09-24 | 1998-04-24 | Nec Corp | 2波長分離型光ヘッド |
KR100267233B1 (ko) * | 1996-09-24 | 2000-10-16 | 윤종용 | 2광원을 이용한 홀로그램 광픽업 |
KR100386518B1 (ko) * | 1996-09-27 | 2003-09-26 | 산요 덴키 가부시키가이샤 | 광픽업장치및파장선택성회절격자 |
JP3301765B2 (ja) | 1996-10-31 | 2002-07-15 | 三洋電機株式会社 | 光ピックアップ装置 |
JP3199650B2 (ja) * | 1996-11-21 | 2001-08-20 | 松下電器産業株式会社 | 光ピックアップ |
MY114470A (en) * | 1996-12-16 | 2002-10-31 | Matsushita Electric Ind Co Ltd | Light pickup |
KR100197942B1 (ko) * | 1996-12-30 | 1999-06-15 | 전주범 | 듀얼 포커스 광 픽업장치 |
KR100238077B1 (ko) * | 1997-01-28 | 2000-01-15 | 윤종용 | 평판을 사용하여 cd-r디스크에 호환하는 dvd디스크의 광픽업 |
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 |
JPH10283652A (ja) * | 1997-02-24 | 1998-10-23 | Hoetron Inc | 異なった波長の2個の半導体レーザを用いた光学ヘッド |
KR100228678B1 (ko) * | 1997-02-27 | 1999-11-01 | 윤종용 | 편광분할기를 사용한 광픽업장치 |
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 |
KR100209918B1 (ko) * | 1997-03-28 | 1999-07-15 | 윤종용 | 홀로그램형링렌즈를 사용하여 cd-r과 호환하는 dvd용 광픽업 |
KR100567291B1 (ko) * | 1997-04-21 | 2006-05-25 | 코니카 미놀타 홀딩스 가부시키가이샤 | 광픽업장치 |
TW342493B (en) * | 1997-04-29 | 1998-10-11 | Ind Tech Res Inst | Digital video disc (DVD) optical head with dual-wavelength laser |
JPH10334504A (ja) | 1997-05-29 | 1998-12-18 | Nec Corp | 光ヘッド装置 |
JP3304053B2 (ja) * | 1997-05-30 | 2002-07-22 | 松下電器産業株式会社 | 光ヘッドおよび光ディスク装置 |
KR100253810B1 (ko) * | 1997-07-10 | 2000-04-15 | 구자홍 | 이파장 광원모듈 및 그를 이용한 광픽업장치 |
US20010050892A1 (en) * | 1997-07-11 | 2001-12-13 | Yoshitaka Takahashi | Optical disk apparatus compatible with different types of mediums |
JPH1139703A (ja) * | 1997-07-14 | 1999-02-12 | Sharp Corp | ホログラムレーザユニット及び2焦点型の光ピックアップ装置 |
KR100291557B1 (ko) * | 1997-08-30 | 2001-06-01 | 윤종용 | 환형차폐면을사용한cd-r및dvd호환광픽업 |
TW346687B (en) * | 1997-09-15 | 1998-12-01 | Ind Tech Res Inst | Package of semiconductor laser diode and compact disk with two-wavelength read/write head |
EP0911818A1 (de) * | 1997-10-27 | 1999-04-28 | Deutsche Thomson-Brandt Gmbh | Kompakter optischer Abtastkopf mit zweifacher Wellenlänge |
EP0911819B1 (de) * | 1997-10-27 | 2006-01-25 | Deutsche Thomson-Brandt Gmbh | Kompakter optischer Abtastkopf mit zweifacher Wellenlänge |
US6343058B1 (en) * | 1997-10-30 | 2002-01-29 | Ricoh Company, Ltd. | Optical pickup device applicable to two kinds of recording media with minimized deterioration of a beam spot |
JPH11167012A (ja) * | 1997-12-03 | 1999-06-22 | Fuji Photo Optical Co Ltd | 回折型フィルタ |
JPH11174218A (ja) * | 1997-12-16 | 1999-07-02 | Fuji Photo Optical Co Ltd | 回折型フィルタ |
JPH11194207A (ja) * | 1997-12-26 | 1999-07-21 | Fuji Photo Optical Co Ltd | 回折型フィルタ |
JP3362768B2 (ja) * | 1998-02-19 | 2003-01-07 | 株式会社ケンウッド | 光ピックアップ装置 |
KR19990074812A (ko) * | 1998-03-14 | 1999-10-05 | 윤종용 | 호환형 광픽업장치 |
JP3521738B2 (ja) * | 1998-04-08 | 2004-04-19 | 日本ビクター株式会社 | 光ピックアップ装置、エラー検出装置及びその検出方法 |
JPH11306579A (ja) | 1998-04-15 | 1999-11-05 | Sony Corp | ビームスプリッタ及び光ピックアップ装置 |
US6088322A (en) * | 1998-05-07 | 2000-07-11 | Broome; Barry G. | Single objective lens for use with CD or DVD optical disks |
JP3638210B2 (ja) * | 1998-06-15 | 2005-04-13 | シャープ株式会社 | ホログラムレーザユニット及びそれを使用した光ピックアップ装置 |
MY117429A (en) * | 1998-06-26 | 2004-06-30 | Hoya Corp | Objective lens for optical pick-up |
KR100295102B1 (ko) | 1998-07-29 | 2001-07-12 | 이형도 | 광픽업 |
JP2000123403A (ja) | 1998-10-19 | 2000-04-28 | Victor Co Of Japan Ltd | 光ピックアップ及び光デバイス |
JP3511913B2 (ja) * | 1998-10-19 | 2004-03-29 | 日本ビクター株式会社 | 光ピックアップ及び光デバイス |
DE69837920T2 (de) * | 1998-10-23 | 2008-04-03 | Samsung Electronics Co., Ltd., Suwon | Mit DVD und beschreibbarer CD kompatibler optischer Abtastkopf mit holographischer Ringlinse |
US6834036B1 (en) * | 1998-10-28 | 2004-12-21 | Matsushita Electric Industrial Co., Ltd. | Optical head for a plurality of types of information recording media |
JP3662751B2 (ja) * | 1998-11-18 | 2005-06-22 | 日本電気株式会社 | 光ヘッド装置 |
JP3728124B2 (ja) | 1999-01-07 | 2005-12-21 | ペンタックス株式会社 | ビーム形状補正光学系および描画装置 |
US6760295B1 (en) * | 1999-01-08 | 2004-07-06 | Pentax Corporation | Optical pick-up |
EP1182653B1 (de) * | 1999-01-22 | 2005-03-16 | Konica Minolta Opto, Inc. | Optische Abtastvorrichtung, Aufzeichnungs- /-Wiedergabegerät mit dieser optischen Abtastvorrichtung, optisches Element und Verfahren zur Informationsaufzeichnung /-Wiedergabe |
JP2000221388A (ja) * | 1999-01-29 | 2000-08-11 | Fuji Photo Optical Co Ltd | 光束径可変型対物レンズおよびこれを用いた光学装置 |
JP2000260049A (ja) | 1999-03-08 | 2000-09-22 | Asahi Optical Co Ltd | 光ディスク装置の光学系 |
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 |
CN1214377C (zh) * | 1999-10-06 | 2005-08-10 | 索尼公司 | 物镜和光拾取装置 |
CN1221956C (zh) * | 1999-11-18 | 2005-10-05 | 柯尼卡株式会社 | 光拾取装置及物镜 |
KR100426355B1 (ko) * | 2000-06-12 | 2004-04-03 | 엘지전자 주식회사 | 광경로차 조절수단이 구비된 광픽업 장치 |
TW446825B (en) | 2000-07-07 | 2001-07-21 | Ind Tech Res Inst | Manufacturing method of dual-color filter |
JP4903300B2 (ja) | 2000-07-31 | 2012-03-28 | 旭硝子株式会社 | 光学装置 |
WO2002029798A1 (en) * | 2000-10-03 | 2002-04-11 | Koninklijke Philips Electronics N.V. | Optical head for scanning a record carrier |
JP3827278B2 (ja) * | 2000-10-10 | 2006-09-27 | フジノン株式会社 | 光記録媒体用対物レンズおよびこれを用いた光ピックアップ装置 |
KR20030019948A (ko) | 2001-05-03 | 2003-03-07 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광학 주사장치 |
KR100421047B1 (ko) * | 2001-07-18 | 2004-03-04 | 삼성전자주식회사 | 광 구동기에 있어서 광량 검출장치 및 방법 |
CN100367382C (zh) * | 2001-09-20 | 2008-02-06 | 皇家飞利浦电子股份有限公司 | 光学扫描装置 |
CN1313846C (zh) | 2001-10-05 | 2007-05-02 | 松下电器产业株式会社 | 衍射光学元件及使用了该衍射光学元件的光学头 |
JP2003294926A (ja) * | 2002-03-26 | 2003-10-15 | Samsung Electro Mech Co Ltd | 波長結合素子及びそれを備えた光ピックアップ装置 |
KR20030093683A (ko) * | 2002-06-05 | 2003-12-11 | 삼성전자주식회사 | 호환형 광픽업 |
US7245407B2 (en) | 2002-06-10 | 2007-07-17 | Matsushita Electric Industrial Co., Ltd. | Complex objective lens compatible with information media of different thicknesses |
JP2004327003A (ja) * | 2002-07-26 | 2004-11-18 | Sharp Corp | 光ピックアップ |
TWI266898B (en) * | 2002-10-31 | 2006-11-21 | Konica Minolta Holdings Inc | Objective optical element 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 |
US7443778B2 (en) | 2003-02-27 | 2008-10-28 | Matsushita Electric Industrial Co., Ltd. | Optical head device and optical information device using the same, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server |
JP2004264659A (ja) * | 2003-03-03 | 2004-09-24 | Mitsubishi Electric Corp | 光送受信モジュール |
DE10311571B4 (de) * | 2003-03-10 | 2005-03-10 | Infineon Technologies Ag | Bidirektionale Sende- und Empfangseinrichtung |
KR20040091292A (ko) * | 2003-04-21 | 2004-10-28 | 삼성전자주식회사 | 수차 보정을 위한 대물렌즈 광학계 및 이를 채용하는 광헤드 |
US20040213134A1 (en) * | 2003-04-24 | 2004-10-28 | Minolta Co., Ltd. | Optical pickup apparatus |
JP3966303B2 (ja) * | 2003-04-24 | 2007-08-29 | コニカミノルタオプト株式会社 | 回折光学素子及びそれを用いた光ピックアップ装置 |
JP4095042B2 (ja) * | 2003-05-14 | 2008-06-04 | シャープ株式会社 | 光磁気記録媒体用ピックアップ |
GB2402230B (en) * | 2003-05-30 | 2006-05-03 | Xsil Technology Ltd | Focusing an optical beam to two foci |
JP5002118B2 (ja) | 2003-06-18 | 2012-08-15 | コニカミノルタアドバンストレイヤー株式会社 | 光ピックアップ装置用の光学素子、及び光ピックアップ装置 |
KR100546351B1 (ko) * | 2003-07-25 | 2006-01-26 | 삼성전자주식회사 | 호환형 광픽업 및 이를 채용한 광 기록 및/또는 재생기기 |
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 |
JP4170231B2 (ja) * | 2004-01-13 | 2008-10-22 | Hoya株式会社 | 光ディスク用対物レンズ |
JP4465200B2 (ja) * | 2004-01-20 | 2010-05-19 | Hoya株式会社 | 光ピックアップ装置および光ピックアップ用対物レンズ |
KR100544204B1 (ko) * | 2004-06-24 | 2006-01-23 | 삼성전자주식회사 | 광 출력 제어장치 |
US7158303B2 (en) | 2004-09-10 | 2007-01-02 | Digital Optics Corporation | Chromatic diffractive optical element corrector, optical system including the same and associated methods |
US7408724B2 (en) | 2004-09-27 | 2008-08-05 | Tessera North America, Inc. | Optical systems including a chromatic diffractive optical element corrector and associated methods |
WO2006031643A1 (en) * | 2004-09-10 | 2006-03-23 | Digital Optics Corporation | Diffractive optical element, optical system including the same and associated methods |
US7186006B2 (en) * | 2004-10-08 | 2007-03-06 | Pursuit Engineering Llc | Reduced-footprint night illumination laser system |
WO2006043187A1 (en) * | 2004-10-18 | 2006-04-27 | Koninklijke Philips Electronics N.V. | Multiiple layer optical record carrier scanning |
US20060098423A1 (en) * | 2004-11-02 | 2006-05-11 | Pursuit Engineering Llc | Reduced-volume portable illumination unit using diffusion films |
TWI393135B (zh) * | 2005-04-21 | 2013-04-11 | Hitachi Maxell | Optical pickup lens and optical pickup device |
JP2008140507A (ja) * | 2006-12-04 | 2008-06-19 | Sharp Corp | ホログラム素子、その製造方法、ならびにそれを用いたホログラムレーザおよび光ピックアップ |
US7619485B2 (en) * | 2007-01-31 | 2009-11-17 | Teledyne Scientific & Imaging, Llc | Compact optical assembly for chip-scale atomic clock |
EP2629920A1 (de) * | 2010-10-22 | 2013-08-28 | Highcon Ltd | Laserschneideverfahren und -vorrichtung |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6047240A (ja) * | 1983-08-26 | 1985-03-14 | Canon Inc | 光ヘツド装置 |
DE3923328A1 (de) * | 1989-07-14 | 1991-01-24 | Thomson Brandt Gmbh | Magneto-optisches aufnahme- und/oder wiedergabegeraet |
US5172369A (en) * | 1990-03-02 | 1992-12-15 | Pioneer Electronic Corporation | Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof |
CA2037428C (en) * | 1990-03-05 | 1997-04-01 | Akira Takahashi | Reproducing optical device for a magneto-optical recording medium |
JPH04281232A (ja) * | 1991-03-11 | 1992-10-06 | Matsushita Electric Ind Co Ltd | 光ヘッドおよび光学的情報記録/再生装置 |
US5235581A (en) * | 1990-08-09 | 1993-08-10 | Matsushita Electric Industrial Co., Ltd. | Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses |
TW218427B (de) * | 1991-06-04 | 1994-01-01 | Ibm | |
CA2079620A1 (en) * | 1991-10-25 | 1993-04-26 | Roeland M. T. Hekker | Holographic elements for an optical recording system |
US5281797A (en) * | 1991-12-26 | 1994-01-25 | Hitachi, Ltd. | Short wavelength optical disk head having a changeable aperture |
JPH05250717A (ja) * | 1992-03-06 | 1993-09-28 | Nec Corp | 光学式記録再生装置 |
JPH06325405A (ja) * | 1992-09-11 | 1994-11-25 | Toshiba Corp | 光記録再生装置 |
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 |
JP3309470B2 (ja) * | 1993-03-10 | 2002-07-29 | 松下電器産業株式会社 | 光情報記録再生装置 |
US5526338A (en) * | 1995-03-10 | 1996-06-11 | Yeda Research & Development Co. Ltd. | Method and apparatus for storage and retrieval with multilayer optical disks |
-
1996
- 1996-06-05 US US08/658,373 patent/US5696750A/en not_active Expired - Lifetime
- 1996-06-05 EP EP01106424A patent/EP1109164B1/de not_active Expired - Lifetime
- 1996-06-05 DE DE69627752T patent/DE69627752T2/de not_active Expired - Lifetime
- 1996-06-05 DE DE69635559T patent/DE69635559T2/de not_active Expired - Lifetime
- 1996-06-05 EP EP96109087A patent/EP0747893B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1109164A3 (de) | 2004-09-22 |
EP0747893A3 (de) | 1998-11-18 |
US5696750A (en) | 1997-12-09 |
DE69635559D1 (de) | 2006-01-12 |
EP0747893A2 (de) | 1996-12-11 |
EP1109164A2 (de) | 2001-06-20 |
DE69635559T2 (de) | 2006-06-14 |
EP0747893B1 (de) | 2003-05-02 |
DE69627752T2 (de) | 2003-10-16 |
EP1109164B1 (de) | 2005-12-07 |
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