HK147095A - Apparatus for optically scanning an information plane - Google Patents
Apparatus for optically scanning an information planeInfo
- Publication number
- HK147095A HK147095A HK147095A HK147095A HK147095A HK 147095 A HK147095 A HK 147095A HK 147095 A HK147095 A HK 147095A HK 147095 A HK147095 A HK 147095A HK 147095 A HK147095 A HK 147095A
- Authority
- HK
- Hong Kong
- Prior art keywords
- grating
- radiation
- focussed
- gratings
- sub
- Prior art date
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
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/16—Beam splitting or combining systems used as aids for focusing
-
- 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
-
- 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
- G11B7/0916—Foucault or knife-edge methods
-
- 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
- G11B7/094—Methods and circuits for servo offset compensation
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Facsimile Scanning Arrangements (AREA)
- Geophysics And Detection Of Objects (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8701749A NL8701749A (nl) | 1987-07-24 | 1987-07-24 | Inrichting voor het met optische straling aftasten van een informatievlak. |
Publications (1)
Publication Number | Publication Date |
---|---|
HK147095A true HK147095A (en) | 1995-09-22 |
Family
ID=19850368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK147095A HK147095A (en) | 1987-07-24 | 1995-09-14 | Apparatus for optically scanning an information plane |
Country Status (14)
Country | Link |
---|---|
US (1) | US4829506A (xx) |
EP (1) | EP0300570B1 (xx) |
JP (1) | JP2683918B2 (xx) |
KR (1) | KR970005985B1 (xx) |
CN (1) | CN1015842B (xx) |
AT (1) | ATE81560T1 (xx) |
AU (1) | AU602646B2 (xx) |
CZ (1) | CZ280821B6 (xx) |
DE (1) | DE3875294T2 (xx) |
ES (1) | ES2036255T3 (xx) |
HK (1) | HK147095A (xx) |
NL (1) | NL8701749A (xx) |
SG (1) | SG28345G (xx) |
SK (1) | SK278407B6 (xx) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3855936T2 (de) * | 1987-08-24 | 1998-01-02 | Sharp Kk | Optische Abtastvorrichtung |
US4907847A (en) * | 1987-09-28 | 1990-03-13 | Nec Home Electronics Ltd. | Optical pickup and hologram therefor |
US5066138A (en) * | 1988-06-16 | 1991-11-19 | Mitsubishi Denki Kabushiki Kaisha | Optical head apparatus |
US4993789A (en) * | 1988-09-15 | 1991-02-19 | Jonathan R. Biles | Dual wavelength polarization selective holographic optical element |
US5511050A (en) * | 1988-09-21 | 1996-04-23 | Hitachi, Ltd. | Focus error detecting method and optical head using the same |
US5049732A (en) * | 1988-10-21 | 1991-09-17 | Sharp Kabushiki Kaisha | Optical pickup device with diffraction device |
NL8802689A (nl) * | 1988-11-03 | 1990-06-01 | Koninkl Philips Electronics Nv | Inrichting voor het met optische straling aftasten van een stralingsreflekterend oppervlak. |
NL8803055A (nl) * | 1988-12-13 | 1990-07-02 | Philips Nv | Optische aftastinrichting, spiegelobjektief geschikt voor toepassing daarin en optisch inschrijf- en/of uitleesapparaat voorzien van deze aftastinrichting. |
NL8803048A (nl) * | 1988-12-13 | 1990-07-02 | Philips Nv | Optische aftastinrichting, spiegelobjektief geschikt voor toepassing daarin en optische inschrijf- en/of uitleesapparaat voorzien van de aftastinrichting. |
JPH06103543B2 (ja) * | 1988-12-31 | 1994-12-14 | 三星電子株式会社 | レーザピックアップ |
FR2646245B1 (fr) * | 1989-04-25 | 1991-06-14 | Thomson Csf | Dispositif de lecture optique pour support d'enregistrement optique |
JPH0721869B2 (ja) * | 1990-04-20 | 1995-03-08 | シャープ株式会社 | 光ピックアップ装置 |
US5490133A (en) * | 1990-10-05 | 1996-02-06 | Hitachi, Ltd. | Optical information processing apparatus and method of controlling position of optical spot and reproducing signals |
JP2865223B2 (ja) * | 1990-12-28 | 1999-03-08 | 松下電子工業株式会社 | 光ピックアップ用偏光板および光ピックアップ装置 |
JPH0659717B2 (ja) * | 1991-02-27 | 1994-08-10 | 株式会社淀川製鋼所 | 被覆表面処理金属板 |
DE69319673T2 (de) * | 1992-08-12 | 1999-02-25 | Philips Electronics N.V., Eindhoven | Einrichtung zur optischen Abtastung einer Oberfläche |
EP0583036B1 (en) * | 1992-08-12 | 1998-07-15 | Koninklijke Philips Electronics N.V. | Device for optically scanning a surface |
EP0627675B1 (de) * | 1993-04-16 | 2001-06-13 | Infineon Technologies AG | Diffraktive optische Einrichtung zur optischen Abbildung eines Raumpunktes auf andere Raumpunkte |
JPH1064104A (ja) * | 1996-08-21 | 1998-03-06 | Pioneer Electron Corp | 非点収差フォーカスエラー信号生成方法及び光ピックアップ装置 |
JPH10172170A (ja) * | 1996-10-09 | 1998-06-26 | Sanyo Electric Co Ltd | 光ピックアップ装置およびその製造方法 |
JPH10333025A (ja) * | 1997-05-28 | 1998-12-18 | Pioneer Electron Corp | 光ピックアップ装置 |
EP1046161A1 (en) | 1998-09-21 | 2000-10-25 | Koninklijke Philips Electronics N.V. | Device for scanning an optical record carrier having at least two information layers |
US6512608B2 (en) * | 1999-12-16 | 2003-01-28 | Victor Company Of Japan, Limited | Optical device |
WO2001081653A1 (fr) | 2000-04-21 | 2001-11-01 | Nkk Corporation | Plaque d'acier traitee en surface et procede de production associe |
WO2002029797A1 (en) * | 2000-10-03 | 2002-04-11 | Koninklijke Philips Electronics N.V. | Optical scanning device |
CN1311628C (zh) | 2001-08-16 | 2007-04-18 | 皇家飞利浦电子股份有限公司 | 差分环形振荡器级 |
CN103868889B (zh) * | 2012-12-18 | 2017-02-15 | 中国科学技术大学 | 基于微镜扫描的微悬臂梁阵列生化传感装置及方法 |
CN110033792B (zh) * | 2019-03-29 | 2020-12-04 | 华韵文化科技有限公司 | 一种非接触测距式老唱片录制装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3272917A (en) * | 1964-02-11 | 1966-09-13 | Gen Electric | First and second order diffraction color projection system |
US3861784A (en) * | 1973-06-29 | 1975-01-21 | Sperry Rand Corp | Programmable diffraction grating |
JPS58220248A (ja) * | 1982-06-15 | 1983-12-21 | Nippon Kogaku Kk <Nikon> | 光学式ピツクアツプ |
US4733065A (en) * | 1984-06-27 | 1988-03-22 | Canon Kabushiki Kaisha | Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom |
JPS61273749A (ja) * | 1985-05-29 | 1986-12-04 | Pioneer Electronic Corp | 光学式ピツクアツプ装置 |
NL8502835A (nl) * | 1985-10-17 | 1987-05-18 | Philips Nv | Inrichting voor het met optische straling aftasten van een informatievlak. |
DE3679648D1 (de) * | 1985-12-10 | 1991-07-11 | Nec Corp | Optischer kopf mit einem beugungsgitter zum richten von zwei oder mehreren gebeugten lichtstrahlen auf optische detektoren. |
US4731772A (en) * | 1986-05-06 | 1988-03-15 | Lee Wai Hon | Optical head using hologram lens for both beam splitting and focus error detection functions |
-
1987
- 1987-07-24 NL NL8701749A patent/NL8701749A/nl not_active Application Discontinuation
- 1987-11-04 US US07/117,006 patent/US4829506A/en not_active Expired - Lifetime
-
1988
- 1988-07-14 ES ES198888201516T patent/ES2036255T3/es not_active Expired - Lifetime
- 1988-07-14 EP EP88201516A patent/EP0300570B1/en not_active Expired - Lifetime
- 1988-07-14 AT AT88201516T patent/ATE81560T1/de not_active IP Right Cessation
- 1988-07-14 DE DE8888201516T patent/DE3875294T2/de not_active Expired - Fee Related
- 1988-07-14 SG SG1995904157A patent/SG28345G/en unknown
- 1988-07-18 JP JP63178914A patent/JP2683918B2/ja not_active Expired - Fee Related
- 1988-07-21 KR KR1019880009113A patent/KR970005985B1/ko not_active IP Right Cessation
- 1988-07-21 CN CN88104607A patent/CN1015842B/zh not_active Expired
- 1988-07-22 SK SK5252-88A patent/SK278407B6/sk unknown
- 1988-07-22 AU AU19746/88A patent/AU602646B2/en not_active Ceased
- 1988-07-22 CZ CS885252A patent/CZ280821B6/cs not_active IP Right Cessation
-
1995
- 1995-09-14 HK HK147095A patent/HK147095A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SG28345G (en) | 1995-09-18 |
KR890002848A (ko) | 1989-04-11 |
CN1030987A (zh) | 1989-02-08 |
NL8701749A (nl) | 1989-02-16 |
KR970005985B1 (ko) | 1997-04-22 |
AU1974688A (en) | 1989-01-27 |
ES2036255T3 (es) | 1993-05-16 |
DE3875294D1 (de) | 1992-11-19 |
EP0300570A1 (en) | 1989-01-25 |
JPS6453353A (en) | 1989-03-01 |
CZ280821B6 (cs) | 1996-04-17 |
US4829506A (en) | 1989-05-09 |
DE3875294T2 (de) | 1993-04-29 |
CN1015842B (zh) | 1992-03-11 |
ATE81560T1 (de) | 1992-10-15 |
JP2683918B2 (ja) | 1997-12-03 |
EP0300570B1 (en) | 1992-10-14 |
SK278407B6 (en) | 1997-04-09 |
AU602646B2 (en) | 1990-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20050714 |