SE0001992L - Metod för läges- och/eller vinkelmätning baserad på kombination av fasgitter erhållen genom avbildning - Google Patents

Metod för läges- och/eller vinkelmätning baserad på kombination av fasgitter erhållen genom avbildning

Info

Publication number
SE0001992L
SE0001992L SE0001992A SE0001992A SE0001992L SE 0001992 L SE0001992 L SE 0001992L SE 0001992 A SE0001992 A SE 0001992A SE 0001992 A SE0001992 A SE 0001992A SE 0001992 L SE0001992 L SE 0001992L
Authority
SE
Sweden
Prior art keywords
phase grating
grating
phase
imaging
combination
Prior art date
Application number
SE0001992A
Other languages
Unknown language ( )
English (en)
Other versions
SE0001992D0 (sv
Inventor
Anders Magnusson
Sverker Haard
Original Assignee
Forskarpatent I Vaest Ab
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 Forskarpatent I Vaest Ab filed Critical Forskarpatent I Vaest Ab
Priority to SE0001992A priority Critical patent/SE0001992L/sv
Publication of SE0001992D0 publication Critical patent/SE0001992D0/sv
Priority to AU2001262856A priority patent/AU2001262856A1/en
Priority to US10/296,963 priority patent/US20030179373A1/en
Priority to PCT/SE2001/001209 priority patent/WO2001092821A1/en
Publication of SE0001992L publication Critical patent/SE0001992L/sv

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses
    • G01D5/38—Forming the light into pulses by diffraction gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
SE0001992A 2000-05-29 2000-05-29 Metod för läges- och/eller vinkelmätning baserad på kombination av fasgitter erhållen genom avbildning SE0001992L (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE0001992A SE0001992L (sv) 2000-05-29 2000-05-29 Metod för läges- och/eller vinkelmätning baserad på kombination av fasgitter erhållen genom avbildning
AU2001262856A AU2001262856A1 (en) 2000-05-29 2001-05-29 Method for position and/or angle measurement by means of gratings
US10/296,963 US20030179373A1 (en) 2000-05-29 2001-05-29 Method for position and/or angle measurement by means of gratings
PCT/SE2001/001209 WO2001092821A1 (en) 2000-05-29 2001-05-29 Method for position and/or angle measurement by means of gratings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0001992A SE0001992L (sv) 2000-05-29 2000-05-29 Metod för läges- och/eller vinkelmätning baserad på kombination av fasgitter erhållen genom avbildning

Publications (2)

Publication Number Publication Date
SE0001992D0 SE0001992D0 (sv) 2000-05-29
SE0001992L true SE0001992L (sv) 2001-11-30

Family

ID=20279872

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0001992A SE0001992L (sv) 2000-05-29 2000-05-29 Metod för läges- och/eller vinkelmätning baserad på kombination av fasgitter erhållen genom avbildning

Country Status (4)

Country Link
US (1) US20030179373A1 (sv)
AU (1) AU2001262856A1 (sv)
SE (1) SE0001992L (sv)
WO (1) WO2001092821A1 (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3977234B2 (ja) * 2002-04-24 2007-09-19 シャープ株式会社 光ピックアップ
CN101268337A (zh) * 2005-09-21 2008-09-17 皇家飞利浦电子股份有限公司 用于检测主体运动的系统
WO2007052419A1 (ja) * 2005-11-01 2007-05-10 Mitsubishi Electric Corporation 光ピックアップ装置および光ディスク装置
US7576856B2 (en) * 2006-01-11 2009-08-18 Baker Hughes Incorporated Method and apparatus for estimating a property of a fluid downhole
US7595876B2 (en) * 2006-01-11 2009-09-29 Baker Hughes Incorporated Method and apparatus for estimating a property of a fluid downhole
JP2008159718A (ja) * 2006-12-21 2008-07-10 Sharp Corp マルチチップモジュールおよびその製造方法、並びにマルチチップモジュールの搭載構造およびその製造方法
US9587933B2 (en) * 2015-08-07 2017-03-07 General Electric Company System and method for inspecting an object
US10823945B2 (en) * 2017-01-10 2020-11-03 Tsinghua University Method for multi-color fluorescence imaging under single exposure, imaging method and imaging system
EP3640629B1 (en) 2018-10-15 2024-05-08 Koh Young Technology Inc Focus-less inspection apparatus and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543179A1 (de) * 1985-12-06 1987-06-11 Philips Patentverwaltung Optischer weg-sensor mit einem filter
US5311360A (en) * 1992-04-28 1994-05-10 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for modulating a light beam
US5652426A (en) * 1993-04-19 1997-07-29 Ricoh Company, Ltd. Optical encoder having high resolution

Also Published As

Publication number Publication date
US20030179373A1 (en) 2003-09-25
WO2001092821A1 (en) 2001-12-06
SE0001992D0 (sv) 2000-05-29
AU2001262856A1 (en) 2001-12-11

Similar Documents

Publication Publication Date Title
JP5829464B2 (ja) 絶対測長型エンコーダ
ATE336025T1 (de) Dynamisch veränderliche diffraktive optische elemente
DE69939831D1 (de) Licht bogenfehlerdetektionssystem
DE69937707D1 (de) Digitales Fotobehandlungssystem mit digitaler Bildverarbeitung
ATE496283T1 (de) Positionsmesseinrichtung
SE0001992L (sv) Metod för läges- och/eller vinkelmätning baserad på kombination av fasgitter erhållen genom avbildning
ATE292784T1 (de) Verfahren zur optischen formerfassung von gegenständen
KR920006745A (ko) 광학식 부호기
CA2350553A1 (en) Optical position sensor module
JP2010256080A (ja) 光電式エンコーダ及びその動作制御方法
DE602007005184D1 (de) Kodierer
EP2386832B1 (en) Photoelectric encoder
US8097842B2 (en) High resolution single track optical encoder
DE69937706D1 (de) Digitales Fotobehandlungssystem mit digitaler Bildverarbeitung
JP2005526951A5 (sv)
DE60233057D1 (de) Aufzeichnungseinrichtung für einen informationsaufzeichnungsmediums-originaldatenträger
US9689715B2 (en) Light source array used in an illumination portion of an optical encoder
WO2009044542A1 (ja) エンコーダ
FR2713780B1 (fr) Capteur de courant à optique massive.
JP6684087B2 (ja) 光エンコーダ
JP3738742B2 (ja) 光学式絶対値エンコーダ及び移動装置
ATE382849T1 (de) Optische positionsmesseinrichtung
JP2004239855A (ja) 反射型光電式エンコーダ
DE69204091D1 (de) Linsensystem für optisches Lesegerät.
JP4364154B2 (ja) 光学式位置エンコーダ装置

Legal Events

Date Code Title Description
NAV Patent application has lapsed