FR2111109A5 - - Google Patents

Info

Publication number
FR2111109A5
FR2111109A5 FR7136120A FR7136120A FR2111109A5 FR 2111109 A5 FR2111109 A5 FR 2111109A5 FR 7136120 A FR7136120 A FR 7136120A FR 7136120 A FR7136120 A FR 7136120A FR 2111109 A5 FR2111109 A5 FR 2111109A5
Authority
FR
France
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
Application number
FR7136120A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR2111109A5 publication Critical patent/FR2111109A5/fr
Expired 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
    • G01D5/36—Forming the light into pulses
    • G01D5/38—Forming the light into pulses by diffraction gratings
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/60—Systems using moiré fringes
FR7136120A 1970-10-19 1971-10-07 Expired FR2111109A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4947870 1970-10-19

Publications (1)

Publication Number Publication Date
FR2111109A5 true FR2111109A5 (fr) 1972-06-02

Family

ID=10452487

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7136120A Expired FR2111109A5 (fr) 1970-10-19 1971-10-07

Country Status (8)

Country Link
US (1) US3796498A (fr)
CA (1) CA942049A (fr)
CH (1) CH542430A (fr)
DE (1) DE2151709A1 (fr)
FR (1) FR2111109A5 (fr)
GB (1) GB1353470A (fr)
IL (1) IL37618A (fr)
NL (1) NL7114329A (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
FR2488395A1 (fr) * 1980-08-11 1982-02-12 Keuffel & Esser Co Dispositif de mesure electro-optique
FR2615281A1 (fr) * 1987-05-11 1988-11-18 Canon Kk Dispositif de mesure d'une distance en mouvement relatif de deux objets mobiles l'un par rapport a l'autre
FR2778458A1 (fr) * 1998-05-06 1999-11-12 Centre Nat Rech Scient Dispositif optique de mesure interferometrique d'un deplacement relatif entre deux elements dont l'un au moins est mobile relativement a l'autre

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DE7508197U (de) * 1974-03-15 1976-02-05 National Research Development Corp. London Vorrichtung zum messen der verschiebung eines ersten elementes bezueglich eines zweiten
GB1504691A (en) * 1974-03-15 1978-03-22 Nat Res Dev Measurement apparatus
US3919562A (en) * 1974-05-20 1975-11-11 Zenith Radio Corp Slit detector for optical detector system
US4049965A (en) * 1975-03-06 1977-09-20 National Research Development Corporation Measurement apparatus
GB1516536A (en) * 1975-08-22 1978-07-05 Ferranti Ltd Measuring apparatus
US4200395A (en) * 1977-05-03 1980-04-29 Massachusetts Institute Of Technology Alignment of diffraction gratings
DE2826213B2 (de) * 1978-06-15 1980-06-04 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Photoelektrisches inkrementales Längen- und Winkelmeßsystem
US4192317A (en) * 1978-06-30 1980-03-11 Ical, Incorporated Indentation tonometer
EP0094754B1 (fr) * 1982-05-08 1987-02-04 Etablissements Pierre Angénieux SA Objectif zoom pour caméras
US4528448A (en) * 1982-05-13 1985-07-09 Benson, Inc. Plane linear grating for optically encoding information
US4629886A (en) * 1983-03-23 1986-12-16 Yokogawa Hokushin Electric Corporation High resolution digital diffraction grating scale encoder
US4684257A (en) * 1984-02-02 1987-08-04 Mitutoyo Mfg. Measuring instrument
US4584472A (en) * 1984-02-21 1986-04-22 Caterpillar Industrial Inc. Linear position encoder
GB2161262A (en) * 1984-07-05 1986-01-08 Co Operative Technology Ltd Digital instrumentation apparatus for the linear air-track
GB8432574D0 (en) * 1984-12-22 1985-02-06 Renishaw Plc Opto-electronic scale-reading apparatus
US4794237A (en) * 1986-11-10 1988-12-27 Ncr Corporation Multidirectional holographic scanner
DE3825475A1 (de) * 1988-07-27 1990-02-01 Bodenseewerk Geraetetech Optischer lagegeber
US5000574A (en) * 1989-04-20 1991-03-19 The United States Of America As Represented By The Secretary Of The Navy Interferometric surface distortion detector
AT394111B (de) * 1989-09-12 1992-02-10 Rieder Heinz Inkrementales messsystem
US5075562A (en) * 1990-09-20 1991-12-24 Eastman Kodak Company Method and apparatus for absolute Moire distance measurements using a grating printed on or attached to a surface
DE4420276C2 (de) * 1993-06-10 2001-04-19 Matsushita Electric Ind Co Ltd Apparat zur Versatzmessung von bewegten Körpern
US6587211B1 (en) 1999-07-28 2003-07-01 Creo Srl Interferometric torque and power sensor
US7248351B2 (en) * 2005-02-25 2007-07-24 Infineon Technologies Ag Optimizing light path uniformity in inspection systems
US20060194130A1 (en) * 2005-02-25 2006-08-31 William Roberts Run to run control for lens aberrations
US20060192943A1 (en) * 2005-02-25 2006-08-31 William Roberts Optimizing focal plane fitting functions for an image field on a substrate
EP2235584B1 (fr) * 2008-01-21 2020-09-16 Apple Inc. Structures optiques pour réduction d'ordre zéro
US8384997B2 (en) 2008-01-21 2013-02-26 Primesense Ltd Optical pattern projection
JP5588310B2 (ja) 2009-11-15 2014-09-10 プライムセンス リミテッド ビームモニタ付き光学プロジェクタ
US20110188054A1 (en) * 2010-02-02 2011-08-04 Primesense Ltd Integrated photonics module for optical projection
US20110187878A1 (en) 2010-02-02 2011-08-04 Primesense Ltd. Synchronization of projected illumination with rolling shutter of image sensor
CN103053167B (zh) 2010-08-11 2016-01-20 苹果公司 扫描投影机及用于3d映射的图像捕获模块
US9036158B2 (en) 2010-08-11 2015-05-19 Apple Inc. Pattern projector
WO2012066501A1 (fr) 2010-11-19 2012-05-24 Primesense Ltd. Cartographie de profondeur à l'aide d'un éclairage à codage temporel
US9167138B2 (en) 2010-12-06 2015-10-20 Apple Inc. Pattern projection and imaging using lens arrays
US20130001412A1 (en) 2011-07-01 2013-01-03 Mitutoyo Corporation Optical encoder including passive readhead with remote contactless excitation and signal sensing
US8749796B2 (en) 2011-08-09 2014-06-10 Primesense Ltd. Projectors of structured light
US8908277B2 (en) 2011-08-09 2014-12-09 Apple Inc Lens array projector
US9080899B2 (en) 2011-12-23 2015-07-14 Mitutoyo Corporation Optical displacement encoder having plural scale grating portions with spatial phase offset of scale pitch
US9018578B2 (en) 2011-12-23 2015-04-28 Mitutoyo Corporation Adaptable resolution optical encoder having structured illumination and spatial filtering
US8941052B2 (en) 2011-12-23 2015-01-27 Mitutoyo Corporation Illumination portion for an adaptable resolution optical encoder
US9029757B2 (en) 2011-12-23 2015-05-12 Mitutoyo Corporation Illumination portion for an adaptable resolution optical encoder
TWI464385B (zh) * 2012-03-22 2014-12-11 Hiti Digital Inc 用來偵測透光光柵結構之偵測裝置與偵測方法
AU2013237062B2 (en) 2012-03-22 2015-07-16 Apple Inc. Diffraction-based sensing of mirror position
US9528906B1 (en) 2013-12-19 2016-12-27 Apple Inc. Monitoring DOE performance using total internal reflection
US10012831B2 (en) 2015-08-03 2018-07-03 Apple Inc. Optical monitoring of scan parameters
US10073004B2 (en) 2016-09-19 2018-09-11 Apple Inc. DOE defect monitoring utilizing total internal reflection
US11422292B1 (en) 2018-06-10 2022-08-23 Apple Inc. Super-blazed diffractive optical elements with sub-wavelength structures
US11681019B2 (en) 2019-09-18 2023-06-20 Apple Inc. Optical module with stray light baffle
US11506762B1 (en) 2019-09-24 2022-11-22 Apple Inc. Optical module comprising an optical waveguide with reference light path
US11754767B1 (en) 2020-03-05 2023-09-12 Apple Inc. Display with overlaid waveguide

Family Cites Families (6)

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US2886718A (en) * 1955-05-31 1959-05-12 Ferranti Ltd Measuring apparatus
DE1548707C3 (de) * 1966-07-26 1979-02-15 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Fotoelektrischer Schrittgeber
US3588462A (en) * 1966-12-23 1971-06-28 Bausch & Lomb Fringe interpolator and counter
US3572937A (en) * 1968-11-04 1971-03-30 Atomic Energy Commission Method and apparatus for interferometric measurement of machine slide roll
DE1921507C2 (de) * 1969-04-26 1971-02-11 Zeiss Carl Fa Einrichtung zur Erzeugung phasenverschobener elektrischer Signale
BE755054A (fr) * 1969-08-21 1971-02-01 Doall Co Procede et dispositif pour la commande du mouvement et de la mise en position des parties mobiles, notamment d'une machine-outil, au moyen de donnees numeriques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488395A1 (fr) * 1980-08-11 1982-02-12 Keuffel & Esser Co Dispositif de mesure electro-optique
FR2615281A1 (fr) * 1987-05-11 1988-11-18 Canon Kk Dispositif de mesure d'une distance en mouvement relatif de deux objets mobiles l'un par rapport a l'autre
FR2778458A1 (fr) * 1998-05-06 1999-11-12 Centre Nat Rech Scient Dispositif optique de mesure interferometrique d'un deplacement relatif entre deux elements dont l'un au moins est mobile relativement a l'autre

Also Published As

Publication number Publication date
IL37618A (en) 1974-05-16
US3796498A (en) 1974-03-12
NL7114329A (fr) 1972-04-21
GB1353470A (en) 1974-05-15
CH542430A (de) 1973-09-30
IL37618A0 (en) 1971-11-29
CA942049A (en) 1974-02-19
DE2151709A1 (de) 1972-05-31

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Legal Events

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