DE69517797D1 - Optische einheit zur optischen abtastung einer informationsoberfläche und optische abtastordnung einschliesslich dieser einheit - Google Patents
Optische einheit zur optischen abtastung einer informationsoberfläche und optische abtastordnung einschliesslich dieser einheitInfo
- Publication number
- DE69517797D1 DE69517797D1 DE69517797T DE69517797T DE69517797D1 DE 69517797 D1 DE69517797 D1 DE 69517797D1 DE 69517797 T DE69517797 T DE 69517797T DE 69517797 T DE69517797 T DE 69517797T DE 69517797 D1 DE69517797 D1 DE 69517797D1
- Authority
- DE
- Germany
- Prior art keywords
- optical
- unit
- scaning
- information surface
- order including
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10792—Special measures in relation to the object to be scanned
- G06K7/10801—Multidistance reading
- G06K7/10811—Focalisation
-
- 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
- G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0932—Details of sprung supports
-
- 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
- G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
-
- 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
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0933—Details of stationary parts
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0935—Details of the moving parts
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Artificial Intelligence (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Optical Recording Or Reproduction (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94203535 | 1994-12-05 | ||
PCT/IB1995/000969 WO1996018166A2 (en) | 1994-12-05 | 1995-11-06 | Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69517797D1 true DE69517797D1 (de) | 2000-08-10 |
DE69517797T2 DE69517797T2 (de) | 2001-02-22 |
Family
ID=8217429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69517797T Expired - Fee Related DE69517797T2 (de) | 1994-12-05 | 1995-11-06 | Optische einheit zur optischen abtastung einer informationsoberfläche und optische abtastordnung einschliesslich dieser einheit |
Country Status (10)
Country | Link |
---|---|
US (1) | US5661704A (de) |
EP (1) | EP0742924B1 (de) |
JP (1) | JPH09509277A (de) |
KR (1) | KR100403493B1 (de) |
CN (1) | CN1067792C (de) |
DE (1) | DE69517797T2 (de) |
HK (1) | HK1012747A1 (de) |
MY (1) | MY112194A (de) |
TW (1) | TW281758B (de) |
WO (1) | WO1996018166A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5784168A (en) * | 1995-07-03 | 1998-07-21 | U.S. Philips Corporation | Position detection system for an object with at least five degrees of freedom |
TW319854B (en) * | 1996-07-04 | 1997-11-11 | Philips Electronics Nv | Optical apparatus for scanning a tape-shaped record carrier |
US5995269A (en) * | 1996-10-09 | 1999-11-30 | U.S. Philips Corporation | Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit |
US7277424B1 (en) * | 1998-07-21 | 2007-10-02 | Dowling Eric M | Method and apparatus for co-socket telephony |
FR2797514B3 (fr) * | 1999-08-10 | 2001-10-12 | Thomson Csf | Dispositif de lecture magneto-optique pour bandes magnetiques multipistes |
US8514675B2 (en) | 2011-05-11 | 2013-08-20 | Oracle International Corporation | Suspension system for an optical pickup assembly |
US9009745B2 (en) * | 2012-11-15 | 2015-04-14 | Oracle International Corporation | Thin web optical media guiding method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8105072A (nl) * | 1981-11-10 | 1983-06-01 | Philips Nv | Electro-optische inrichting. |
JPS62162261A (ja) * | 1986-01-10 | 1987-07-18 | Hitachi Ltd | 光磁気記録再生装置 |
NL9001253A (nl) * | 1990-06-01 | 1992-01-02 | Philips Nv | Inrichting voor het optisch bepalen van de positie en stand van een voorwerp en optisch inschrijf- en/of weergaveapparaat voorzien van een dergelijke inrichting. |
NL9001260A (nl) * | 1990-06-01 | 1992-01-02 | Philips Nv | Aftastinrichting met een roteerbare spiegel, alsmede aandrijfeenheid ten gebruike in de aftastinrichting, en rotorlichaam ten gebruike in de aandrijfeenheid. |
KR940006129B1 (ko) * | 1991-12-24 | 1994-07-06 | 삼성전자 주식회사 | 양면디스크 재생장치 |
US5321684A (en) * | 1992-09-15 | 1994-06-14 | Sri International | Bidirectional sinusoidal scanning system |
WO1995016988A1 (en) * | 1993-12-15 | 1995-06-22 | Philips Electronics N.V. | Optical scanning means |
-
1995
- 1995-11-06 CN CN95192050A patent/CN1067792C/zh not_active Expired - Fee Related
- 1995-11-06 KR KR1019960704167A patent/KR100403493B1/ko not_active IP Right Cessation
- 1995-11-06 WO PCT/IB1995/000969 patent/WO1996018166A2/en active IP Right Grant
- 1995-11-06 JP JP8517453A patent/JPH09509277A/ja not_active Ceased
- 1995-11-06 DE DE69517797T patent/DE69517797T2/de not_active Expired - Fee Related
- 1995-11-06 EP EP95934791A patent/EP0742924B1/de not_active Expired - Lifetime
- 1995-11-22 TW TW084112395A patent/TW281758B/zh active
- 1995-12-04 MY MYPI95003731A patent/MY112194A/en unknown
- 1995-12-04 US US08/566,773 patent/US5661704A/en not_active Expired - Fee Related
-
1998
- 1998-12-21 HK HK98114111A patent/HK1012747A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TW281758B (de) | 1996-07-21 |
KR100403493B1 (ko) | 2004-03-24 |
WO1996018166A2 (en) | 1996-06-13 |
CN1144002A (zh) | 1997-02-26 |
WO1996018166A3 (en) | 1996-08-29 |
MY112194A (en) | 2001-04-30 |
HK1012747A1 (en) | 1999-08-06 |
KR970700883A (ko) | 1997-02-12 |
DE69517797T2 (de) | 2001-02-22 |
JPH09509277A (ja) | 1997-09-16 |
EP0742924B1 (de) | 2000-07-05 |
CN1067792C (zh) | 2001-06-27 |
EP0742924A1 (de) | 1996-11-20 |
US5661704A (en) | 1997-08-26 |
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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 |