DE69014205D1 - Optische messinstrumente. - Google Patents

Optische messinstrumente.

Info

Publication number
DE69014205D1
DE69014205D1 DE69014205T DE69014205T DE69014205D1 DE 69014205 D1 DE69014205 D1 DE 69014205D1 DE 69014205 T DE69014205 T DE 69014205T DE 69014205 T DE69014205 T DE 69014205T DE 69014205 D1 DE69014205 D1 DE 69014205D1
Authority
DE
Germany
Prior art keywords
optical measuring
measuring instruments
instruments
optical
measuring
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
Application number
DE69014205T
Other languages
English (en)
Other versions
DE69014205T2 (de
Inventor
Michael John Downs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BTG International Ltd
Original Assignee
British Technology Group Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Technology Group Ltd filed Critical British Technology Group Ltd
Publication of DE69014205D1 publication Critical patent/DE69014205D1/de
Application granted granted Critical
Publication of DE69014205T2 publication Critical patent/DE69014205T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02056—Passive reduction of errors
    • G01B9/02059—Reducing effect of parasitic reflections, e.g. cyclic errors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02056—Passive reduction of errors
    • G01B9/02058—Passive reduction of errors by particular optical compensation or alignment elements, e.g. dispersion compensation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02056—Passive reduction of errors
    • G01B9/02061—Reduction or prevention of effects of tilts or misalignment

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
DE69014205T 1989-09-08 1990-09-07 Optische messinstrumente. Expired - Fee Related DE69014205T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898920364A GB8920364D0 (en) 1989-09-08 1989-09-08 Optical measuring instruments
PCT/GB1990/001394 WO1991003702A1 (en) 1989-09-08 1990-09-07 Optical measuring instruments

Publications (2)

Publication Number Publication Date
DE69014205D1 true DE69014205D1 (de) 1994-12-22
DE69014205T2 DE69014205T2 (de) 1995-05-24

Family

ID=10662773

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69014205T Expired - Fee Related DE69014205T2 (de) 1989-09-08 1990-09-07 Optische messinstrumente.

Country Status (6)

Country Link
US (1) US5847828A (de)
EP (1) EP0490956B1 (de)
JP (1) JP2997047B2 (de)
DE (1) DE69014205T2 (de)
GB (2) GB8920364D0 (de)
WO (1) WO1991003702A1 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611438B1 (de) * 1991-11-08 1996-07-03 British Technology Group Ltd Optische Messgeräte
GB9210488D0 (en) * 1992-05-15 1992-07-01 British Tech Group Mechanical mounting
DE19801469C2 (de) 1998-01-16 2001-05-17 Campus Technologies Ag Zug Vorrichtung zur Erfassung oder Erzeugung optischer Signale
EP1031868B1 (de) * 1999-02-26 2003-05-14 Dr. Johannes Heidenhain GmbH Kompensierter Parallel-Strahlteiler mit zwei Platten sowie Interferometer
US6163379A (en) * 1999-08-27 2000-12-19 Zygo Corporation Interferometer with tilted waveplates for reducing ghost reflections
US6989901B2 (en) 2003-07-02 2006-01-24 Inlight Solutions, Inc. Interferometer
US6952266B2 (en) * 2003-01-15 2005-10-04 Inlight Solutions, Inc. Interferometer alignment
WO2004065894A2 (en) * 2003-01-15 2004-08-05 Inlight Solutions, Inc. Optical path difference scanning interferometer
CN100425850C (zh) 2003-09-16 2008-10-15 Ntn株式会社 壳式滚针轴承、压缩机主轴的支持结构及活塞泵驱动部的支持结构
EP1715204A4 (de) 2004-02-12 2011-12-21 Ntn Toyo Bearing Co Ltd Schalen-nadellager, stützkonstruktion für kompressorspindel und stützkonstruktion für kolbenpumpenantriebsteil
US7492463B2 (en) 2004-04-15 2009-02-17 Davidson Instruments Inc. Method and apparatus for continuous readout of Fabry-Perot fiber optic sensor
US7305158B2 (en) 2004-04-15 2007-12-04 Davidson Instruments Inc. Interferometric signal conditioner for measurement of absolute static displacements and dynamic displacements of a Fabry-Perot interferometer
EP1674833A3 (de) 2004-12-21 2007-05-30 Davidson Instruments, Inc. Faseroptisches Sensorsystem
EP1681540A1 (de) 2004-12-21 2006-07-19 Davidson Instruments, Inc. Mehrkanalarrayprozessor
EP1869737B1 (de) 2005-03-16 2021-05-12 Davidson Instruments, Inc. Hochintensitäts-fabry-perot-sensor
WO2007033069A2 (en) 2005-09-13 2007-03-22 Davidson Instruments Inc. Tracking algorithm for linear array signal processor for fabry-perot cross-correlation pattern and method of using same
US7502117B1 (en) * 2005-12-07 2009-03-10 Itt Manufacturing Enterprises, Inc. Interferometer with ghost suppression
US7684051B2 (en) 2006-04-18 2010-03-23 Halliburton Energy Services, Inc. Fiber optic seismic sensor based on MEMS cantilever
EP2021747B1 (de) 2006-04-26 2018-08-01 Halliburton Energy Services, Inc. Faseroptischer seismischer mems-sensor mit von schwenkbalken getragener masse
US8115937B2 (en) 2006-08-16 2012-02-14 Davidson Instruments Methods and apparatus for measuring multiple Fabry-Perot gaps
US7633624B1 (en) 2006-11-06 2009-12-15 Itt Manufacturing Enterprises, Inc. Self compensating cube corner interferometer
CA2676246C (en) 2007-01-24 2013-03-19 Halliburton Energy Services, Inc. Transducer for measuring environmental parameters
US9445946B2 (en) 2012-11-02 2016-09-20 Optimedica Corporation Laser eye surgery system
US9007572B2 (en) * 2013-03-13 2015-04-14 Promet International, Inc. Multifunction solid-state inspection system
JP2017072466A (ja) * 2015-10-07 2017-04-13 株式会社トプコン 光波距離測定装置
JP6892734B2 (ja) 2015-12-15 2021-06-23 株式会社トプコン 光波距離測定装置
EP3495766B8 (de) * 2017-12-06 2023-02-08 Silicon Austria Labs GmbH Referenzinterferometer und verfahren zur bestimmung einer optischen weglängenänderung
US11867507B1 (en) * 2023-05-05 2024-01-09 Mloptic Corp. Extended reality virtual distance measurement system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2081936A (en) * 1935-10-12 1937-06-01 John A Keenan Lens centering apparatus
US2571937A (en) * 1948-08-27 1951-10-16 Research Corp Interferometer with right-angle reflector surfaces at end of each divided beam
GB717233A (en) * 1951-03-19 1954-10-27 Francis Hughes Smith Improvements in or relating to arrangements for testing optical components and optical systems
GB800304A (en) * 1955-04-04 1958-08-27 Nat Res Dev Improvements in or relating to apparatus and methods for testing optical systems, lenses and the like
DE1772171B1 (de) * 1968-04-08 1972-03-09 Optomechanisms Inc Optisches interferometer
US4278351A (en) * 1979-05-09 1981-07-14 Nasa Interferometer
US4265540A (en) * 1979-10-01 1981-05-05 Laser Precision Corporation Refractively scanned interferometer
US4286877A (en) * 1979-07-26 1981-09-01 Laser Precision Corporation Refractively scanned interferometer
US4391525A (en) * 1979-10-10 1983-07-05 Ball Corporation Interferometer
FR2506874B1 (fr) * 1981-06-01 1986-08-29 Glaenzer Spicer Sa Joint homocinetique a tripode a galets rotulants
DE3300369A1 (de) * 1982-04-05 1983-10-06 Suhl Feinmesszeugfab Veb Stehende-wellen-interferometer zur messung von optischen gangunterschieden

Also Published As

Publication number Publication date
GB2235789B (en) 1993-09-29
DE69014205T2 (de) 1995-05-24
EP0490956A1 (de) 1992-06-24
JPH05500712A (ja) 1993-02-12
GB9019647D0 (en) 1990-10-24
JP2997047B2 (ja) 2000-01-11
EP0490956B1 (de) 1994-11-17
US5847828A (en) 1998-12-08
WO1991003702A1 (en) 1991-03-21
GB2235789A (en) 1991-03-13
GB8920364D0 (en) 1989-10-25

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: BRITISH TECHNOLOGY GROUP LTD., LONDON, GB

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BTG INTERNATIONAL LTD., LONDON, GB

8339 Ceased/non-payment of the annual fee