DE2953304T1 - - Google Patents
Info
- Publication number
- DE2953304T1 DE2953304T1 DE19792953304 DE2953304T DE2953304T1 DE 2953304 T1 DE2953304 T1 DE 2953304T1 DE 19792953304 DE19792953304 DE 19792953304 DE 2953304 T DE2953304 T DE 2953304T DE 2953304 T1 DE2953304 T1 DE 2953304T1
- Authority
- DE
- Germany
- Prior art keywords
- light
- polarized light
- magneto
- magnetic
- optical
- 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.)
- Granted
Links
- 230000010287 polarization Effects 0.000 claims description 40
- 230000003287 optical effect Effects 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 5
- 230000006872 improvement Effects 0.000 claims description 3
- 230000001902 propagating effect Effects 0.000 claims 1
- 230000005415 magnetization Effects 0.000 description 30
- 239000010408 film Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 19
- 230000008859 change Effects 0.000 description 17
- 239000010409 thin film Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000005284 excitation Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000005374 Kerr effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000002983 circular dichroism Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- VAUNMJNZQZLHJE-UHFFFAOYSA-N cobalt gadolinium Chemical compound [Co].[Gd] VAUNMJNZQZLHJE-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
-
- 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
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
- G11B11/10545—Heads for reproducing using optical beam of radiation interacting directly with the magnetisation on the record 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
- 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
- G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
- G01N2021/218—Measuring properties of electrooptical or magnetooptical media
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Measuring Magnetic Variables (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14955678U JPS5568041U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-11-01 | 1978-11-01 | |
JP3567479U JPS55135941U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-03-22 | 1979-03-22 | |
JP12050179U JPS5640518U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-09-03 | 1979-09-03 | |
PCT/JP1979/000272 WO1980001016A1 (en) | 1978-11-01 | 1979-10-26 | Magneto-optical anisotropy detecting device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2953304T1 true DE2953304T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-03-25 |
DE2953304C2 DE2953304C2 (de) | 1985-08-08 |
Family
ID=27288836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2953304T Expired DE2953304C2 (de) | 1978-11-01 | 1979-10-26 | Vorrichtung zum Lesen von magnetisch gespeicherter Information |
Country Status (4)
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57111843A (en) * | 1980-12-27 | 1982-07-12 | Canon Inc | Vertical magnetic reading optical system |
JPS57133537A (en) * | 1981-02-06 | 1982-08-18 | Sharp Corp | Magnetic and optical recording and reproducing head |
JPS57147148A (en) * | 1981-03-05 | 1982-09-10 | Olympus Optical Co Ltd | Information reproducer with magnetooptic system |
US4561032A (en) * | 1981-06-02 | 1985-12-24 | Canon Kabushiki Kaisha | Magnetooptic reproducing device |
FR2514913B1 (fr) * | 1981-10-16 | 1986-07-04 | Bull Sa | Dispositif opto-electronique de lecture d'informations contenues sur un support magnetique |
CA1190321A (en) * | 1981-10-29 | 1985-07-09 | Toshihisa Deguchi | Magneto-optical head assembly |
JPS58179904A (ja) * | 1982-04-15 | 1983-10-21 | Pioneer Electronic Corp | 情報記録方式 |
JPS5945646A (ja) * | 1982-09-07 | 1984-03-14 | Hitachi Ltd | 光学的情報再生装置 |
JPS5963040A (ja) * | 1982-09-16 | 1984-04-10 | Canon Inc | 光磁気情報読取装置 |
CA1208361A (en) * | 1983-01-25 | 1986-07-22 | Yoshikazu Fujii | Optical focus position control in optical disc apparatus |
EP0314200B1 (en) * | 1983-01-25 | 1992-08-12 | Sharp Kabushiki Kaisha | Optical focus position control device |
EP0318772B1 (en) * | 1983-01-25 | 1992-06-10 | Sharp Kabushiki Kaisha | Optical focus position control device |
US4658390A (en) * | 1983-04-18 | 1987-04-14 | Sharp Kabushiki Kaisha | Optical focus position control in an optical memory system |
EP0156058A3 (en) * | 1983-08-06 | 1986-01-29 | Brother Kogyo Kabushiki Kaisha | Magneto-optical reading apparatus |
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 |
JPS6161626U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1984-09-28 | 1986-04-25 | ||
JPS61104348A (ja) * | 1984-10-22 | 1986-05-22 | Nec Corp | 光磁気ヘツド |
JPS61160845A (ja) * | 1985-01-09 | 1986-07-21 | Nippon Kogaku Kk <Nikon> | 光デイスクの記録再生装置 |
EP0205940B1 (de) * | 1985-05-31 | 1989-08-30 | Siemens Aktiengesellschaft | Optisches System zum Führen des Lesestrahles bei einem magneto-optischen Speicher |
JP2552109B2 (ja) * | 1985-11-08 | 1996-11-06 | セイコーエプソン株式会社 | 光記録再生装置 |
FR2591787A1 (fr) * | 1985-12-13 | 1987-06-19 | Thomson Csf | Dispositif d'enregistrement-lecture polyvalent de support d'enregistrement |
DE3583039D1 (de) * | 1985-12-17 | 1991-07-04 | Ibm Deutschland | Schreib/lesekopf fuer optische platten. |
JPS62157549A (ja) * | 1985-12-30 | 1987-07-13 | Kanzaki Paper Mfg Co Ltd | シート状透光性試料の異方性測定方法 |
US4701894A (en) * | 1986-03-28 | 1987-10-20 | Rca Corporation | Magnetic biasing apparatus for magneto-optic recording including a magnetic circuit |
US5189651A (en) * | 1986-05-12 | 1993-02-23 | Pioneer Electronic Corporation | Optical system in magneto-optical recording and reproducing device |
US4812637A (en) * | 1986-07-07 | 1989-03-14 | Brother Kogyo Kabushiki Kaisha | Optical disc head with high signal-to-noise ratio |
DE3732874A1 (de) * | 1987-09-30 | 1989-04-20 | Thomson Brandt Gmbh | Optische abtastvorrichtung |
US4774615A (en) * | 1987-02-17 | 1988-09-27 | Eastman Kodak Company | Magneto-optic read-out method and apparatus with polarization correction means |
US4816761A (en) * | 1987-06-22 | 1989-03-28 | Josephs Richard M | Apparatus for measuring the hysteresis loop of hard magnetic films on large magnetic recording disk |
US5420683A (en) * | 1987-10-01 | 1995-05-30 | Litton Systems, Inc. | Multioscillator ring laser gyro beam combining optics |
CA1322599C (en) * | 1988-01-13 | 1993-09-28 | Nobuhiro Fukushima | Floating type magneto-optic disk reading head system having external semiconductor laser resonator operating at orthogonal two mode oscillations |
JPH01305340A (ja) * | 1988-06-03 | 1989-12-08 | Fuji Photo Film Co Ltd | 表裏判別方法および装置 |
JPH0250335A (ja) * | 1988-08-12 | 1990-02-20 | Sharp Corp | 磁気光学記憶素子 |
US5235570A (en) * | 1989-03-06 | 1993-08-10 | Eastman Kodak Company | Magneto-optic readout method and apparatus using polarization switching of readout beam |
US5182735A (en) * | 1989-03-06 | 1993-01-26 | Eastman Kodak Company | Magneto-optic readout apparatus using polarization switching of readout beam |
US4922200A (en) * | 1989-08-25 | 1990-05-01 | Ldj Electronics, Inc. | Apparatus for measuring the hysteresis loop of magnetic film |
CA2037428C (en) * | 1990-03-05 | 1997-04-01 | Akira Takahashi | Reproducing optical device for a magneto-optical recording medium |
US5305090A (en) * | 1991-12-11 | 1994-04-19 | Gmi Engineering And Management Institute | Birefringent inspection polarscope |
US5349576A (en) * | 1992-07-27 | 1994-09-20 | Eastman Kodak Company | Apparatus and method for polarization switching of a readout beam in a magneto-optic storage system |
US5432607A (en) * | 1993-02-22 | 1995-07-11 | International Business Machines Corporation | Method and apparatus for inspecting patterned thin films using diffracted beam ellipsometry |
DE4402059C1 (de) * | 1994-01-25 | 1995-04-27 | Zeiss Carl Jena Gmbh | Faraday-Mikroskop sowie Verfahren zu dessen Justierung |
KR0162266B1 (ko) * | 1995-11-27 | 1998-12-15 | 장용균 | 자기광학특성 측정장치 |
DE10203738B4 (de) * | 2002-01-31 | 2004-01-15 | AxynTeC Dünnschichttechnik GmbH | Messvorrichtung und Verfahren zur Messung der Flussdichteverteilung in einer bandförmigen, supraleitenden Probe |
FR2856791B1 (fr) * | 2003-06-27 | 2005-11-04 | Centre Nat Rech Scient | Procede et dispositif d'imagerie magneto-optique |
DE10347240B4 (de) * | 2003-10-10 | 2015-10-15 | Trützschler GmbH & Co Kommanditgesellschaft | Vorrichtung in der Spinnereivorbereitung zum Erkennen von Fremdteilen aus Kunststoff in Faserflocken |
US7808636B2 (en) * | 2007-01-11 | 2010-10-05 | Rensselaer Polytechnic Institute | Systems, methods, and devices for handling terahertz radiation |
KR100843430B1 (ko) * | 2007-04-04 | 2008-07-03 | 삼성전기주식회사 | 솔리톤을 이용한 광도파로 제조 방법 |
KR101527868B1 (ko) * | 2011-04-07 | 2015-06-10 | 삼성전자주식회사 | 광학 요소를 포함하는 정보저장장치 |
CN108918424B (zh) * | 2018-04-24 | 2020-10-02 | 金华职业技术学院 | 一种磁性线材的磁畴成像方法及磁畴壁形状判别方法 |
CN109459137A (zh) * | 2018-09-12 | 2019-03-12 | 深圳大学 | 偏振光探测器及偏振光的探测方法 |
JP2023142687A (ja) | 2022-03-25 | 2023-10-05 | 三星電子株式会社 | 偏光顕微鏡装置及び視野内補正解析方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3445833A (en) * | 1965-11-01 | 1969-05-20 | Sperry Rand Corp | Signal responsive apparatus with a polar azimuth vibrator |
US3775570A (en) * | 1972-02-25 | 1973-11-27 | California Inst Of Techn | Magneto-optic detection system with noise cancellation |
JPS51129279A (en) * | 1975-05-02 | 1976-11-10 | Nippon Kogaku Kk <Nikon> | Polarizing analyzer |
DE2854064C2 (de) * | 1977-12-14 | 1985-02-21 | Hitachi, Ltd., Tokio/Tokyo | Verfahren und Vorrichtung zum Messen magnetooptischer Anisotropie |
-
1979
- 1979-10-26 US US06/201,483 patent/US4410277A/en not_active Expired - Lifetime
- 1979-10-26 DE DE2953304T patent/DE2953304C2/de not_active Expired
- 1979-10-26 WO PCT/JP1979/000272 patent/WO1980001016A1/ja unknown
- 1979-10-26 NL NL7920100A patent/NL7920100A/nl unknown
Also Published As
Publication number | Publication date |
---|---|
US4410277A (en) | 1983-10-18 |
NL7920100A (nl) | 1981-02-27 |
DE2953304C2 (de) | 1985-08-08 |
WO1980001016A1 (en) | 1980-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2953304T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
DE2463376C2 (de) | Verfahren zur Video-Informationsaufzeichnung | |
DE3879238T2 (de) | Magnetooptisches Leseverfahren und Gerät. | |
EP0310812B1 (de) | Verfahren zur Verringerung der Rauschanteile in einem Datensignal und optische Abtastvorrichtung | |
DE2649073C2 (de) | Fokussierungseinrichtung mit elektrooptischen Teilen und deren Verwendung in einem optischen Leser | |
DE69704276T2 (de) | Magneto-optisches Aufzeichnungssystem unter Verwendung von Nahfeldoptik | |
DE4223337C2 (de) | Verfahren und Anordnung zur photothermischen Spektroskopie | |
DE3102972C2 (de) | Einrichtung zum kontinuierlichen Abtasten mittels eines Lichtflecks | |
EP0076228A1 (de) | Faseroptische Messanordnung | |
DE3423958A1 (de) | Anordnung und verfahren zur bestimmung von rissen, blasen oder sonstigen fehlstellen in einem target-material | |
DE2911861A1 (de) | Videoaufzeichnungsgeraet und verfahren zur aufzeichnung einer frequenzmodulierten videoinformation | |
DE69907897T2 (de) | Optische faser mit niedriger doppelbrechung zur benutzung in optischen datenspeicher-systemen | |
DE1798143A1 (de) | Verfahren zur optischen Ellipsometric von Materialproben | |
DE68908132T2 (de) | Optisches lichtventilsystem zur erzeugung eines phasenkonjugierten strahls steuerbarer intensität. | |
DE3787033T2 (de) | Optische Aufnahme und/oder Wiedergabe von Informationssignalen. | |
DE69424532T2 (de) | Verfahren und optisches system zur aufzeichnung/wiedergabe von information auf einem aufzeichnungsmedium | |
DE2920856A1 (de) | Farbwiedergabesystem unter ausnutzung des faraday-koeffizienten eines magnetschirmes | |
DE4026875A1 (de) | Optische abtastvorrichtung | |
DE69023350T2 (de) | Anordnung zur optischen Verbindung. | |
DE69030991T2 (de) | Magnetooptisches medium | |
DE1524795A1 (de) | Verfahren zum Auslesen magnetisch gespeicherter Informationen und Vorrichtung zur Durchfuehrung des Verfahrens | |
DE1564498B2 (de) | Optisches frequenzmodulationssystem fuer kohaerentes licht | |
DE1589648B1 (de) | Geraet zur Modulation der Elliptizitaet der Polarisation eines Lichtstrahls | |
DE2449502A1 (de) | Geraet zum messen der rueckstrahlung eines probestueckes | |
DE4122709A1 (de) | Optisches system fuer polarisiertes licht |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |