DE69123899D1 - Optisches Gerät zum Detektieren der Position - Google Patents
Optisches Gerät zum Detektieren der PositionInfo
- Publication number
- DE69123899D1 DE69123899D1 DE69123899T DE69123899T DE69123899D1 DE 69123899 D1 DE69123899 D1 DE 69123899D1 DE 69123899 T DE69123899 T DE 69123899T DE 69123899 T DE69123899 T DE 69123899T DE 69123899 D1 DE69123899 D1 DE 69123899D1
- Authority
- DE
- Germany
- Prior art keywords
- detecting
- optical device
- 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.)
- Expired - Fee Related
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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2227621A JP2617237B2 (ja) | 1990-08-28 | 1990-08-28 | 光スポット位置検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69123899D1 true DE69123899D1 (de) | 1997-02-13 |
DE69123899T2 DE69123899T2 (de) | 1997-07-10 |
Family
ID=16863802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69123899T Expired - Fee Related DE69123899T2 (de) | 1990-08-28 | 1991-08-27 | Optisches Gerät zum Detektieren der Position |
Country Status (4)
Country | Link |
---|---|
US (1) | US5194919A (de) |
EP (1) | EP0473124B1 (de) |
JP (1) | JP2617237B2 (de) |
DE (1) | DE69123899T2 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4113842A1 (de) * | 1991-04-27 | 1992-11-05 | Deutsche Forsch Luft Raumfahrt | Verfahren und einrichtung zur messung und bestimmung einer wegdifferenz in interferometern nach michelson |
US5376785A (en) * | 1992-10-02 | 1994-12-27 | Chin; Philip K. | Optical displacement sensor utilizing optical diffusion |
US5486925A (en) * | 1993-06-01 | 1996-01-23 | Rohm Co., Ltd. | Displacement sensing apparatus for a movable member |
US6154278A (en) * | 1993-06-10 | 2000-11-28 | Matsushita Electric Industrial Co., Ltd. | Optical encoder for optically measuring displacement of moving body |
US5706140A (en) * | 1993-09-06 | 1998-01-06 | Kansei Corp. | Optical distance measuring equipment |
JPH07234105A (ja) * | 1994-02-23 | 1995-09-05 | Wacom Co Ltd | 光点位置計測方法 |
JP3610648B2 (ja) * | 1995-11-30 | 2005-01-19 | ヤマハ株式会社 | 光センサ |
US5812266A (en) * | 1995-12-15 | 1998-09-22 | Hewlett-Packard Company | Non-contact position sensor |
US5886787A (en) * | 1995-12-15 | 1999-03-23 | Hewlett-Packard Company | Displacement sensor and method for producing target feature thereof |
US5625182A (en) * | 1995-12-21 | 1997-04-29 | Honeywell Inc. | Light sensor with position compensation accomplished by area distribution |
US6459492B1 (en) | 1997-03-14 | 2002-10-01 | Agilent Technologies, Inc. | Non-contact position sensor |
US6015970A (en) * | 1997-12-11 | 2000-01-18 | Motorola, Inc. | Switch assembly incorporating optical control function |
US6496273B1 (en) * | 1999-05-05 | 2002-12-17 | Renishaw Plc | Position determining apparatus for coordinate positioning machine |
JP5947184B2 (ja) * | 2005-03-30 | 2016-07-06 | 株式会社ニコン | 位置検出方法、及び位置検出装置 |
CN117249759B (zh) * | 2023-08-09 | 2024-04-23 | 盐城市巨能动力机械有限公司 | 一种应用于隧道管片钢模的端板合模检测方法及系统 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161506U (de) * | 1980-05-02 | 1981-12-01 | ||
JPS58154606A (ja) * | 1982-03-10 | 1983-09-14 | Toppan Printing Co Ltd | 絵柄面積率測定装置 |
JPH0413637Y2 (de) * | 1985-05-30 | 1992-03-30 | ||
JPS61276137A (ja) * | 1985-05-30 | 1986-12-06 | Fujitsu Ltd | 光学ヘツドアクチユエ−タ |
EP0224853B1 (de) * | 1985-11-30 | 1992-02-05 | Kabushiki Kaisha Toshiba | Optischer Kopf |
JPH0419454Y2 (de) * | 1986-04-25 | 1992-05-01 | ||
EP0283002B1 (de) * | 1987-03-17 | 1994-02-16 | Matsushita Electric Industrial Co., Ltd. | Optischer Kopf |
JPS6479943A (en) * | 1987-09-22 | 1989-03-24 | Nippon Columbia | Optical head device |
JP2693530B2 (ja) * | 1988-12-06 | 1997-12-24 | オリンパス光学工業株式会社 | 光学式ピックアップ |
JPH0778904B2 (ja) * | 1989-01-27 | 1995-08-23 | シャープ株式会社 | 光ピックアップ装置 |
JP2737998B2 (ja) * | 1989-03-31 | 1998-04-08 | ソニー株式会社 | 対物レンズ位置検出装置 |
US5079432A (en) * | 1990-06-25 | 1992-01-07 | Ampex Corporation | Method and apparatus for measuring the displacement of an automatic scan tracking head |
-
1990
- 1990-08-28 JP JP2227621A patent/JP2617237B2/ja not_active Expired - Fee Related
-
1991
- 1991-08-26 US US07/749,663 patent/US5194919A/en not_active Expired - Lifetime
- 1991-08-27 EP EP91114391A patent/EP0473124B1/de not_active Expired - Lifetime
- 1991-08-27 DE DE69123899T patent/DE69123899T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH04109103A (ja) | 1992-04-10 |
DE69123899T2 (de) | 1997-07-10 |
JP2617237B2 (ja) | 1997-06-04 |
US5194919A (en) | 1993-03-16 |
EP0473124A1 (de) | 1992-03-04 |
EP0473124B1 (de) | 1997-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |