[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

ATE86044T1 - Optisches lesegeraet. - Google Patents

Optisches lesegeraet.

Info

Publication number
ATE86044T1
ATE86044T1 AT87118575T AT87118575T ATE86044T1 AT E86044 T1 ATE86044 T1 AT E86044T1 AT 87118575 T AT87118575 T AT 87118575T AT 87118575 T AT87118575 T AT 87118575T AT E86044 T1 ATE86044 T1 AT E86044T1
Authority
AT
Austria
Prior art keywords
light beam
prism element
objective lens
generating source
glass
Prior art date
Application number
AT87118575T
Other languages
English (en)
Inventor
Hiroshi Yoshimatsu
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ATE86044T1 publication Critical patent/ATE86044T1/de

Links

Classifications

    • 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
    • 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
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10515—Reproducing
    • 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
    • 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

Landscapes

  • Optical Head (AREA)
  • Holo Graphy (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Polarising Elements (AREA)
AT87118575T 1986-12-25 1987-12-15 Optisches lesegeraet. ATE86044T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61310484A JPH0777038B2 (ja) 1986-12-25 1986-12-25 光学ピツクアツプ装置
EP87118575A EP0273295B1 (de) 1986-12-25 1987-12-15 Optisches Lesegerät

Publications (1)

Publication Number Publication Date
ATE86044T1 true ATE86044T1 (de) 1993-03-15

Family

ID=18005788

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87118575T ATE86044T1 (de) 1986-12-25 1987-12-15 Optisches lesegeraet.

Country Status (6)

Country Link
US (1) US5077723A (de)
EP (1) EP0273295B1 (de)
JP (1) JPH0777038B2 (de)
KR (1) KR960000825B1 (de)
AT (1) ATE86044T1 (de)
DE (1) DE3784327T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597249B1 (fr) * 1986-04-11 1988-06-17 Thomson Csf Dispositif de lecture optique de support d'enregistrement optique
JP2982965B2 (ja) * 1989-09-18 1999-11-29 オリンパス光学工業株式会社 光学式読み取り装置
US5272685A (en) * 1989-12-22 1993-12-21 Kabushiki Kaisha Toshiba Optical system for an information processing apparatus
JP2798185B2 (ja) * 1990-07-26 1998-09-17 キヤノン株式会社 光磁気式情報再生装置用光学ヘッド
US5621714A (en) * 1994-02-12 1997-04-15 Olympus Optical Co., Ltd. Optical pick-up apparatus having hologram and beam splitter with birefringent member and polarizing film
US5541906A (en) * 1994-07-29 1996-07-30 Olympus Optical Co., Ltd. Optical head for magneto-optical record medium
JPH08321088A (ja) * 1995-05-25 1996-12-03 Sony Corp 光学ピックアップ
WO1999016061A1 (en) * 1997-09-22 1999-04-01 Seagate Technology, Inc. Apparatus and method for differential wax-wane focusing and push-pull tracking for magneto-optical data storage
JP2003085813A (ja) * 2001-09-07 2003-03-20 Minebea Co Ltd 記録媒体の情報記録及び再生装置
KR102044864B1 (ko) * 2012-12-13 2019-12-06 삼성디스플레이 주식회사 레이저 패터닝 검사장치
AU2013391380B2 (en) * 2013-05-27 2016-06-23 Huawei Technologies Co., Ltd. Filter and manufacturing method thereof, and laser wavelength monitoring device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH068934B2 (ja) * 1982-01-11 1994-02-02 オリンパス光学工業株式会社 光束合成装置
JPS58221812A (ja) * 1982-06-18 1983-12-23 Hitachi Ltd 自然光生成素子
EP0100178B1 (de) * 1982-07-14 1988-09-28 Fujitsu Limited Polarisationselement
JPS59167855A (ja) * 1983-03-14 1984-09-21 Canon Inc 情報記録再生装置
US4627688A (en) * 1983-07-01 1986-12-09 Sano Kiko Co., Ltd. Beam splitter
JPS6018833A (ja) * 1983-07-11 1985-01-30 Nippon Kogaku Kk <Nikon> 二波長ビ−ムスプリツタ−を備えた磁気光学記録再生装置
JPS6053863A (ja) * 1983-09-05 1985-03-27 Sony Corp 磁気記録媒体の磁化方向検出装置
JPS6055537A (ja) * 1983-09-06 1985-03-30 Nippon Kogaku Kk <Nikon> 非対称カ−効果を利用する磁気光学再生方法並びにそれに使用する記録媒体及び再生装置
JPH0756710B2 (ja) * 1983-11-24 1995-06-14 シャープ株式会社 光磁気記憶装置の光学装置
JPS60151855A (ja) * 1984-01-20 1985-08-09 Olympus Optical Co Ltd 光磁気ピツクアツプ装置
JPS61177655A (ja) * 1985-01-31 1986-08-09 Olympus Optical Co Ltd 光磁気差動再生装置
JP2592231B2 (ja) * 1985-05-15 1997-03-19 セイコーエプソン株式会社 光学ヘツド
EP0205940B1 (de) * 1985-05-31 1989-08-30 Siemens Aktiengesellschaft Optisches System zum Führen des Lesestrahles bei einem magneto-optischen Speicher
JPH0677351B2 (ja) * 1986-11-15 1994-09-28 ソニー株式会社 光学ピツクアツプ装置

Also Published As

Publication number Publication date
DE3784327D1 (de) 1993-04-01
JPS63161541A (ja) 1988-07-05
KR960000825B1 (ko) 1996-01-13
US5077723A (en) 1991-12-31
JPH0777038B2 (ja) 1995-08-16
EP0273295B1 (de) 1993-02-24
DE3784327T2 (de) 1993-09-09
EP0273295A2 (de) 1988-07-06
KR880008258A (ko) 1988-08-30
EP0273295A3 (en) 1990-06-27

Similar Documents

Publication Publication Date Title
ES2040978T3 (es) Aparato para explorar opticamente un plano de informacion.
JPS5753832A (en) Method and device for recording of optical information
DE3564617D1 (en) Apparatus for automatic measurement of stress in a transparent body by means of scattered light
DE3784327D1 (de) Optisches lesegeraet.
EP0838813A3 (de) Mit mehreren Plattenformaten kompatible optische Abtastvorrichtung
KR920012947A (ko) 2색 촛점면 어레이 센서장치
ATE83088T1 (de) Optischer lesekopf.
JPS6446243A (en) Optical pickup device
KR870005357A (ko) 해독장치
JPS56163531A (en) Optical information recorder and reproducer
JPS6455746A (en) Optical pickup device
JPS56156937A (en) Optical pickup device
JPS6417228A (en) Recording/reproducing device for optical recording medium
JPS56147164A (en) Copying apparatus capable of reading and writing image
SU1651267A1 (ru) Устройство дл записи голограмм фазовых объектов
JPS56156814A (en) Synchronizing system for optical printer
KR930002127Y1 (ko) 광디스크시스템의 광 헤드 장치
JPS57100636A (en) Optical information reader
SU1224826A1 (ru) Устройство дл воспроизведени информации с оптического носител
JPH0218723A (ja) 光学ヘッド
JPS57120242A (en) Optical information reproducing device
JPS6427288A (en) Semiconductor device
JPS6443703A (en) Method and device for measuring distance
JPS56165936A (en) Optical information reproducer
JPS5711571A (en) Information recorder

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee