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
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)
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)
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 |
JP6047811B2 (ja) * | 2013-05-27 | 2016-12-21 | 華為技術有限公司Huawei Technologies Co.,Ltd. | フィルタ、フィルタを製作する方法、およびレーザ波長監視装置 |
Family Cites Families (14)
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 |
DE3378140D1 (en) * | 1982-07-14 | 1988-11-03 | Fujitsu Ltd | Polarizing elements |
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 |
-
1986
- 1986-12-25 JP JP61310484A patent/JPH0777038B2/ja not_active Expired - Fee Related
-
1987
- 1987-12-15 AT AT87118575T patent/ATE86044T1/de not_active IP Right Cessation
- 1987-12-15 EP EP87118575A patent/EP0273295B1/de not_active Expired - Lifetime
- 1987-12-15 DE DE8787118575T patent/DE3784327T2/de not_active Expired - Fee Related
- 1987-12-24 US US07/137,731 patent/US5077723A/en not_active Expired - Fee Related
- 1987-12-24 KR KR1019870014897A patent/KR960000825B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR960000825B1 (ko) | 1996-01-13 |
JPH0777038B2 (ja) | 1995-08-16 |
EP0273295B1 (de) | 1993-02-24 |
EP0273295A3 (en) | 1990-06-27 |
KR880008258A (ko) | 1988-08-30 |
US5077723A (en) | 1991-12-31 |
EP0273295A2 (de) | 1988-07-06 |
DE3784327T2 (de) | 1993-09-09 |
DE3784327D1 (de) | 1993-04-01 |
JPS63161541A (ja) | 1988-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |