ATE168491T1 - Einrichtung zur optischen abtastung einer oberfläche - Google Patents
Einrichtung zur optischen abtastung einer oberflächeInfo
- Publication number
- ATE168491T1 ATE168491T1 AT93202341T AT93202341T ATE168491T1 AT E168491 T1 ATE168491 T1 AT E168491T1 AT 93202341 T AT93202341 T AT 93202341T AT 93202341 T AT93202341 T AT 93202341T AT E168491 T1 ATE168491 T1 AT E168491T1
- Authority
- AT
- Austria
- Prior art keywords
- sub
- dividing line
- information plane
- tracks
- error signal
- 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
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- 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)
- Optical Recording Or Reproduction (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92202487 | 1992-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE168491T1 true ATE168491T1 (de) | 1998-08-15 |
Family
ID=8210848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT93202341T ATE168491T1 (de) | 1992-08-12 | 1993-08-09 | Einrichtung zur optischen abtastung einer oberfläche |
Country Status (6)
Country | Link |
---|---|
US (1) | US5579298A (de) |
JP (1) | JPH06195727A (de) |
CN (1) | CN1047454C (de) |
AT (1) | ATE168491T1 (de) |
DE (1) | DE69319673T2 (de) |
TW (1) | TW283233B (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5835471A (en) * | 1995-06-12 | 1998-11-10 | Canon Kabushiki Kaisha | Optical information recording and/or reproducing apparatus |
KR0165425B1 (ko) * | 1995-08-18 | 1999-03-20 | 김광호 | 고밀도 기록재생을 위한 광픽업 |
WO1997023871A1 (en) * | 1995-12-21 | 1997-07-03 | Philips Electronics N.V. | Optical scanning device |
KR19980066004A (ko) * | 1997-01-17 | 1998-10-15 | 김광호 | 광픽업장치 |
JP3889104B2 (ja) | 1997-02-07 | 2007-03-07 | シャープ株式会社 | 光ピックアップ装置 |
CN1122988C (zh) * | 1997-08-12 | 2003-10-01 | 株式会社三协精机制作所 | 光传感头装置及其制造方法 |
TW444201B (en) * | 1998-02-16 | 2001-07-01 | Hitachi Ltd | Optical head |
KR100598707B1 (ko) * | 1998-08-04 | 2006-07-10 | 소니 가부시끼 가이샤 | 집적 광학 소자 및 광학 픽업 및 광 디스크 장치 |
JP2002163831A (ja) * | 2000-11-27 | 2002-06-07 | Sharp Corp | 半導体レーザ装置および光ピックアップ装置 |
JP2002288856A (ja) * | 2001-03-27 | 2002-10-04 | Sharp Corp | 光ピックアップ |
US6894959B2 (en) * | 2001-08-23 | 2005-05-17 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for exposing optical disk master |
TW200839569A (en) | 2007-03-23 | 2008-10-01 | Asustek Comp Inc | Quick imgae capture system |
CN105607034A (zh) | 2015-12-23 | 2016-05-25 | 北京凌宇智控科技有限公司 | 一种三维空间检测***、定位方法及*** |
CN106646365B (zh) * | 2016-11-25 | 2024-02-20 | 北京凌宇智控科技有限公司 | 一种定位基站、定位***及定位方法 |
CN106526540B (zh) * | 2016-11-25 | 2024-05-28 | 北京凌宇智控科技有限公司 | 一种定位基站、定位***及定位方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4724533A (en) * | 1984-06-15 | 1988-02-09 | Matsushita Electric Industrial Co., Ltd. | Optical head |
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 |
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. |
JPH073704B2 (ja) * | 1987-03-18 | 1995-01-18 | 富士通株式会社 | 2ビ−ム式光ピツクアツプ |
US5270996A (en) * | 1986-12-25 | 1993-12-14 | Nec Corporation | Optical head with diffraction grating producing five diffracted detection light beams |
NL8701749A (nl) * | 1987-07-24 | 1989-02-16 | Philips Nv | Inrichting voor het met optische straling aftasten van een informatievlak. |
EP0539354B1 (de) * | 1987-08-24 | 1997-06-04 | Sharp Kabushiki Kaisha | Optische Abtastvorrichtung |
EP0318912B1 (de) * | 1987-11-30 | 1994-02-02 | Nec Corporation | Optischer Kopf |
JPH0770065B2 (ja) * | 1988-04-20 | 1995-07-31 | シャープ株式会社 | 光ピックアップ装置 |
JPH0758559B2 (ja) * | 1988-09-02 | 1995-06-21 | シャープ株式会社 | 光ピックアップ装置 |
US5062098A (en) * | 1988-10-19 | 1991-10-29 | Matsushita Electric Industrial Co., Ltd. | Optical pick-up device having holographic element |
NL8802988A (nl) * | 1988-12-05 | 1990-07-02 | Philips Nv | Inrichting voor het met optische straling aftasten van een informatievlak. |
KR940001999B1 (ko) * | 1989-06-06 | 1994-03-12 | 샤프 가부시끼가이샤 | 광 픽업장치 |
JPH0354733A (ja) * | 1989-07-21 | 1991-03-08 | Sony Corp | 光学記録および/または再生装置 |
JP3155287B2 (ja) * | 1990-05-30 | 2001-04-09 | 株式会社リコー | 光情報記録再生装置 |
JP2875650B2 (ja) * | 1991-08-23 | 1999-03-31 | シャープ株式会社 | 光学式情報記録再生装置 |
JP2776487B2 (ja) * | 1992-01-28 | 1998-07-16 | シャープ株式会社 | 光学式情報記録再生装置 |
-
1993
- 1993-08-09 AT AT93202341T patent/ATE168491T1/de not_active IP Right Cessation
- 1993-08-09 CN CN93116235A patent/CN1047454C/zh not_active Expired - Fee Related
- 1993-08-09 DE DE69319673T patent/DE69319673T2/de not_active Expired - Fee Related
- 1993-08-12 JP JP5200786A patent/JPH06195727A/ja active Pending
- 1993-09-13 TW TW082107492A patent/TW283233B/zh active
-
1996
- 1996-02-27 US US08/607,623 patent/US5579298A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06195727A (ja) | 1994-07-15 |
DE69319673T2 (de) | 1999-02-25 |
US5579298A (en) | 1996-11-26 |
TW283233B (de) | 1996-08-11 |
DE69319673D1 (de) | 1998-08-20 |
CN1047454C (zh) | 1999-12-15 |
CN1082741A (zh) | 1994-02-23 |
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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 |