AU2000250781A1 - A position detector for a scanning device - Google Patents

A position detector for a scanning device

Info

Publication number
AU2000250781A1
AU2000250781A1 AU2000250781A AU5078100A AU2000250781A1 AU 2000250781 A1 AU2000250781 A1 AU 2000250781A1 AU 2000250781 A AU2000250781 A AU 2000250781A AU 5078100 A AU5078100 A AU 5078100A AU 2000250781 A1 AU2000250781 A1 AU 2000250781A1
Authority
AU
Australia
Prior art keywords
light
blocker
reflector
scanning device
position detector
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.)
Abandoned
Application number
AU2000250781A
Inventor
Frank Burkhardt
Norbert Petschik
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.)
Scanlab AG
Original Assignee
Scanlab AG
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 Scanlab AG filed Critical Scanlab AG
Publication of AU2000250781A1 publication Critical patent/AU2000250781A1/en
Abandoned legal-status Critical Current

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
    • G01D5/347—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 using displacement encoding scales
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices
    • 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
    • G01D5/347—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 using displacement encoding scales
    • G01D5/3473—Circular or rotary encoders

Abstract

A position detector for a scanning device includes a movable light blocker, at least two light detectors which are located behind the light blocker and which can be covered by the light blocker at different extents of coverage as the light blocker is being moved, so that the position of the light blocker can be determined, and at least one light source for emitting light onto the light detectors. A reflector is provided which is located in front of the light blocker. The light source is arranged such that the light emitted therefrom is emitted onto the reflector. Furthermore, the reflector is arranged such that the light impinging thereon is reflected onto the light detectors.
AU2000250781A 2000-06-15 2000-06-15 A position detector for a scanning device Abandoned AU2000250781A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2000/005528 WO2001096816A1 (en) 2000-06-15 2000-06-15 A position detector for a scanning device

Publications (1)

Publication Number Publication Date
AU2000250781A1 true AU2000250781A1 (en) 2001-12-24

Family

ID=8163989

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2000250781A Abandoned AU2000250781A1 (en) 2000-06-15 2000-06-15 A position detector for a scanning device

Country Status (7)

Country Link
US (1) US6921893B1 (en)
EP (1) EP1295090B1 (en)
JP (1) JP3884707B2 (en)
AT (1) ATE262163T1 (en)
AU (1) AU2000250781A1 (en)
DE (1) DE60009171T2 (en)
WO (1) WO2001096816A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004018106B4 (en) * 2004-04-14 2008-08-07 Markus Guggenmos High-precision optical position detector for galvanometer rotary screens
FR2877124B1 (en) * 2004-10-22 2006-12-29 Schneider Electric Ind Sas PHOTOELECTRIC SENSOR
JP2009542178A (en) 2006-06-19 2009-11-26 ジーエスアイ・グループ・コーポレーション Optical position transducer system and method using reflected illumination
US7940380B1 (en) * 2007-01-23 2011-05-10 Benner Jr William R Rotary position detector and associated methods
US7688432B1 (en) 2007-01-23 2010-03-30 Benner Jr William R Rotary position detector and associated methods
US8508726B2 (en) 2007-01-23 2013-08-13 William R. Benner, Jr. Rotary position detector and associated methods
DE102007003852A1 (en) * 2007-01-25 2008-07-31 Raylase Ag Galvanometric motor for laser scanning system, has LED to direct light beam towards reflection surface of deflection unit in such manner that light beam forms angle of less than thirty five degrees with rotation axis of rotor
DE502007001393D1 (en) * 2007-02-14 2009-10-08 Mt Derm Gmbh Drive module for a device for local piercing of a human or an animal skin and hand device
EP2122691A4 (en) 2007-02-16 2011-02-16 Nanogram Corp Solar cell structures, photovoltaic modules and corresponding processes
DE102008034792A1 (en) 2008-07-25 2010-02-04 Scanlab Ag Laser deflector for use in optical scanner during e.g. rapid prototyping, has control device adjusting angle position detected by position detector with reference angle position determined by optical referencing device
CN101387512B (en) * 2008-08-28 2010-06-09 上海科勒电子科技有限公司 Distance detecting induction device
CN101387514B (en) * 2008-08-28 2010-07-28 上海科勒电子科技有限公司 Distance detecting induction device
US20100294352A1 (en) * 2009-05-20 2010-11-25 Uma Srinivasan Metal patterning for electrically conductive structures based on alloy formation
US20100294349A1 (en) * 2009-05-20 2010-11-25 Uma Srinivasan Back contact solar cells with effective and efficient designs and corresponding patterning processes
WO2012076031A1 (en) 2010-12-10 2012-06-14 Wavelight Gmbh Laser arrangement, in particular for ophthalmological laser surgery
ES2621854T3 (en) 2010-12-10 2017-07-05 Wavelight Gmbh Laser device, especially for laser ophthalmic surgery
US8912083B2 (en) 2011-01-31 2014-12-16 Nanogram Corporation Silicon substrates with doped surface contacts formed from doped silicon inks and corresponding processes
US8711345B2 (en) 2011-05-20 2014-04-29 Nutfield Technology, Inc. Optical angular position detection apparatus and method
DE102012222571A1 (en) 2012-12-07 2014-06-12 Scanlab Ag Optical angle detector
DE102013208649A1 (en) 2013-05-10 2014-11-13 Scanlab Ag Optical angle detector with beam-shaping element
JP6369042B2 (en) * 2013-11-05 2018-08-08 日本精工株式会社 Optical encoder unit and optical encoder
US10500676B2 (en) 2016-02-19 2019-12-10 Faro Technologies, Inc. Voice coil motor operated linear actuator
KR102312469B1 (en) * 2016-09-13 2021-10-13 미쓰비시덴키 가부시키가이샤 Galvano Scanner and Mirror Unit
US10922506B2 (en) * 2017-06-06 2021-02-16 Sicpa Holding Sa Illumination device for an optical system of a reader apparatus
RU2676722C1 (en) * 2018-05-03 2019-01-10 Российская Федерация в лице Министерства промышленности и торговли Российской Федерации (Минромторг России) System of automatic adjustment of scanning system of the selective laser fusion plant
DE102020201957A1 (en) 2020-02-17 2021-08-19 Scanlab Gmbh Galvanometer drive with backlash-free bearing
JP6869393B1 (en) * 2020-03-12 2021-05-12 シチズン千葉精密株式会社 Manufacturing method of position converter and detector

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983391A (en) * 1975-05-21 1976-09-28 Itek Corporation Optical encoder of the reflective type
US4152589A (en) 1977-09-28 1979-05-01 Silonics, Inc. Optical rotational encoder
GB8325921D0 (en) 1983-09-28 1983-11-02 Marconi Avionics Optical method of measuring displacement
JPS61132812A (en) 1984-11-30 1986-06-20 Nippon Denso Co Ltd Displacement detecting device
JPH0419454Y2 (en) * 1986-04-25 1992-05-01
JPS62174209A (en) * 1986-11-29 1987-07-31 Satsuki Kitani Production of swellable substance
JPH0599620A (en) * 1991-10-14 1993-04-23 Olympus Optical Co Ltd Edge detection device
IL109860A0 (en) 1994-06-01 1994-10-07 Scitex Corp Ltd Compact disc encoder
KR970051196U (en) * 1996-02-03 1997-09-08 Paper sensitive sensor device of laser printer
US5844673A (en) 1998-04-17 1998-12-01 Cambridge Technology, Inc. Axial led position detector for determining the angular position of a rotatable element
DE10114751C1 (en) * 2001-03-22 2002-11-21 Gerhard Kurz pressure sensor

Also Published As

Publication number Publication date
DE60009171T2 (en) 2004-10-14
ATE262163T1 (en) 2004-04-15
US6921893B1 (en) 2005-07-26
EP1295090A1 (en) 2003-03-26
JP2004503762A (en) 2004-02-05
JP3884707B2 (en) 2007-02-21
DE60009171D1 (en) 2004-04-22
EP1295090B1 (en) 2004-03-17
WO2001096816A1 (en) 2001-12-20

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