ATE138479T1 - Optische messeinrichtung für verschiebung - Google Patents

Optische messeinrichtung für verschiebung

Info

Publication number
ATE138479T1
ATE138479T1 AT92307396T AT92307396T ATE138479T1 AT E138479 T1 ATE138479 T1 AT E138479T1 AT 92307396 T AT92307396 T AT 92307396T AT 92307396 T AT92307396 T AT 92307396T AT E138479 T1 ATE138479 T1 AT E138479T1
Authority
AT
Austria
Prior art keywords
image
fourier
modulating
coherent light
timings
Prior art date
Application number
AT92307396T
Other languages
English (en)
Inventor
Tamiki Takemori
Yuji Kobayashi
Original Assignee
Hamamatsu Photonics Kk
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 Hamamatsu Photonics Kk filed Critical Hamamatsu Photonics Kk
Application granted granted Critical
Publication of ATE138479T1 publication Critical patent/ATE138479T1/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/80—Devices characterised by the determination of the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means
    • G01P3/806—Devices characterised by the determination of the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means in devices of the type to be classified in G01P3/68
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G01P3/366—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light by using diffraction of light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)
AT92307396T 1991-08-12 1992-08-12 Optische messeinrichtung für verschiebung ATE138479T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3226459A JP2538456B2 (ja) 1991-08-12 1991-08-12 光学的変位量測定装置

Publications (1)

Publication Number Publication Date
ATE138479T1 true ATE138479T1 (de) 1996-06-15

Family

ID=16845431

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92307396T ATE138479T1 (de) 1991-08-12 1992-08-12 Optische messeinrichtung für verschiebung

Country Status (5)

Country Link
US (1) US5361131A (de)
EP (1) EP0532182B1 (de)
JP (1) JP2538456B2 (de)
AT (1) ATE138479T1 (de)
DE (1) DE69210923T2 (de)

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JP3737292B2 (ja) * 1998-10-13 2006-01-18 パイオニア株式会社 光変調装置及び光学的情報処理システム
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US6323984B1 (en) * 2000-10-11 2001-11-27 Silicon Light Machines Method and apparatus for reducing laser speckle
US6697501B2 (en) * 2000-11-30 2004-02-24 Vansco Electronics Ltd. Method for detecting velocity or displacement of an object over a surface by analyzing images of the surface
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US6747781B2 (en) 2001-06-25 2004-06-08 Silicon Light Machines, Inc. Method, apparatus, and diffuser for reducing laser speckle
US6829092B2 (en) 2001-08-15 2004-12-07 Silicon Light Machines, Inc. Blazed grating light valve
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US6800238B1 (en) 2002-01-15 2004-10-05 Silicon Light Machines, Inc. Method for domain patterning in low coercive field ferroelectrics
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US6829258B1 (en) 2002-06-26 2004-12-07 Silicon Light Machines, Inc. Rapidly tunable external cavity laser
US6714337B1 (en) 2002-06-28 2004-03-30 Silicon Light Machines Method and device for modulating a light beam and having an improved gamma response
US6908201B2 (en) 2002-06-28 2005-06-21 Silicon Light Machines Corporation Micro-support structures
US6813059B2 (en) 2002-06-28 2004-11-02 Silicon Light Machines, Inc. Reduced formation of asperities in contact micro-structures
US7057795B2 (en) 2002-08-20 2006-06-06 Silicon Light Machines Corporation Micro-structures with individually addressable ribbon pairs
US6801354B1 (en) 2002-08-20 2004-10-05 Silicon Light Machines, Inc. 2-D diffraction grating for substantially eliminating polarization dependent losses
US6712480B1 (en) 2002-09-27 2004-03-30 Silicon Light Machines Controlled curvature of stressed micro-structures
US6928207B1 (en) 2002-12-12 2005-08-09 Silicon Light Machines Corporation Apparatus for selectively blocking WDM channels
US6987600B1 (en) 2002-12-17 2006-01-17 Silicon Light Machines Corporation Arbitrary phase profile for better equalization in dynamic gain equalizer
US7057819B1 (en) 2002-12-17 2006-06-06 Silicon Light Machines Corporation High contrast tilting ribbon blazed grating
US6934070B1 (en) 2002-12-18 2005-08-23 Silicon Light Machines Corporation Chirped optical MEM device
US6927891B1 (en) 2002-12-23 2005-08-09 Silicon Light Machines Corporation Tilt-able grating plane for improved crosstalk in 1×N blaze switches
US7068372B1 (en) 2003-01-28 2006-06-27 Silicon Light Machines Corporation MEMS interferometer-based reconfigurable optical add-and-drop multiplexor
US7286764B1 (en) 2003-02-03 2007-10-23 Silicon Light Machines Corporation Reconfigurable modulator-based optical add-and-drop multiplexer
US6947613B1 (en) 2003-02-11 2005-09-20 Silicon Light Machines Corporation Wavelength selective switch and equalizer
US6922272B1 (en) 2003-02-14 2005-07-26 Silicon Light Machines Corporation Method and apparatus for leveling thermal stress variations in multi-layer MEMS devices
US7391973B1 (en) 2003-02-28 2008-06-24 Silicon Light Machines Corporation Two-stage gain equalizer
US7027202B1 (en) 2003-02-28 2006-04-11 Silicon Light Machines Corp Silicon substrate as a light modulator sacrificial layer
US6829077B1 (en) 2003-02-28 2004-12-07 Silicon Light Machines, Inc. Diffractive light modulator with dynamically rotatable diffraction plane
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JP4014535B2 (ja) * 2003-04-25 2007-11-28 シャープ株式会社 光学式移動量検出装置及び電子機器及び搬送処理システム
US7282716B2 (en) * 2003-11-10 2007-10-16 Technology Innovations, Llc Digital imaging assembly and methods thereof
JP2006349534A (ja) * 2005-06-16 2006-12-28 Fujinon Corp 動体測定用干渉計装置および動体測定用光干渉計測方法
TWI402721B (zh) * 2009-12-03 2013-07-21 Chung Shan Inst Of Science 光斑定位方法及光斑定位系統
TWI492622B (zh) * 2011-08-31 2015-07-11 Realtek Semiconductor Corp 網路訊號接收系統與網路訊號接收方法
JP5927837B2 (ja) * 2011-10-20 2016-06-01 株式会社リコー 速度検出装置、移動部材搬送ユニット、及び、画像形成装置
EP2861935B1 (de) * 2012-06-13 2016-02-10 Koninklijke Philips N.V. Bestimmung einer ausbreitungsgeschwindigkeit für eine oberflächenwelle
KR102067763B1 (ko) * 2013-03-13 2020-01-17 삼성전자주식회사 공간 광변조기, 이를 포함한 홀로그래피 영상 표시 장치 및 공간 광변조 방법
WO2017145145A1 (en) * 2016-02-25 2017-08-31 ContinUse Biometrics Ltd. A method and system for monitoring parameters of a moving object
IL278987A (en) * 2019-12-05 2021-06-30 Continuse Biometrics Ltd System and method for passively monitoring a sample
CN114136229B (zh) * 2021-12-01 2023-09-19 上海市计量测试技术研究院 一种一维psd传感器量程拼接的设计方法

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JPS57187605A (en) * 1981-05-14 1982-11-18 Ricoh Co Ltd Measuring device for optical movement distance
JPS59212773A (ja) * 1983-05-19 1984-12-01 Toshiba Corp 光学的速度検出装置
DE3729648A1 (de) * 1987-09-04 1989-03-16 Deutsche Forsch Luft Raumfahrt Verfahren und vorrichtung zur messung der stroemungsgeschwindigkeit in windkanaelen
US5011278A (en) * 1989-04-25 1991-04-30 Wisconsin Alumni Research Foundation Optical correlator method and apparatus for particle image velocimetry processing
JP2744494B2 (ja) * 1989-12-04 1998-04-28 住友大阪セメント株式会社 スペックル利用測定装置

Also Published As

Publication number Publication date
US5361131A (en) 1994-11-01
DE69210923T2 (de) 1996-11-28
DE69210923D1 (de) 1996-06-27
JPH0642916A (ja) 1994-02-18
EP0532182B1 (de) 1996-05-22
EP0532182A1 (de) 1993-03-17
JP2538456B2 (ja) 1996-09-25

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