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BE744278A - Dispositif pour determiner le deplacement relatif d'un objet a l'aide d'une trame fixee mecaniquement a l'objet - Google Patents

Dispositif pour determiner le deplacement relatif d'un objet a l'aide d'une trame fixee mecaniquement a l'objet

Info

Publication number
BE744278A
BE744278A BE744278DA BE744278A BE 744278 A BE744278 A BE 744278A BE 744278D A BE744278D A BE 744278DA BE 744278 A BE744278 A BE 744278A
Authority
BE
Belgium
Prior art keywords
determining
relative movement
mechanically fixed
frame mechanically
frame
Prior art date
Application number
Other languages
English (en)
French (fr)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of BE744278A publication Critical patent/BE744278A/xx

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)
  • Polarising Elements (AREA)
  • Optical Transform (AREA)
BE744278D 1969-01-11 1970-01-09 Dispositif pour determiner le deplacement relatif d'un objet a l'aide d'une trame fixee mecaniquement a l'objet BE744278A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6900491A NL6900491A (xx) 1969-01-11 1969-01-11

Publications (1)

Publication Number Publication Date
BE744278A true BE744278A (fr) 1970-07-09

Family

ID=19805844

Family Applications (1)

Application Number Title Priority Date Filing Date
BE744278D BE744278A (fr) 1969-01-11 1970-01-09 Dispositif pour determiner le deplacement relatif d'un objet a l'aide d'une trame fixee mecaniquement a l'objet

Country Status (9)

Country Link
US (1) US3630625A (xx)
JP (1) JPS501217B1 (xx)
AU (1) AU1012370A (xx)
BE (1) BE744278A (xx)
CH (1) CH519700A (xx)
DE (1) DE1963835C3 (xx)
FR (1) FR2028166A1 (xx)
GB (1) GB1303261A (xx)
NL (1) NL6900491A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0262349A3 (en) * 1986-10-02 1989-06-21 Dr. Johannes Heidenhain Gmbh Photoelectric angle measuring device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451668A1 (de) * 1974-10-31 1976-05-06 Leitz Ernst Gmbh Anordnung zur geometrischen trennung von lichtfluessen in abbildungssystemen
JPS51105876A (ja) * 1975-03-14 1976-09-20 Hitachi Ltd Jikikogakukokaomochiirukodokei
DE2857203A1 (de) * 1977-11-25 1980-11-27 J Mckelvie Method and apparatus for sensing in-plane deformation of a surface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441049A (en) * 1944-09-29 1948-05-04 Polaroid Corp Composite achromatic wave plates comprising superimposed sheets of differently birefringent, molecularly oriented, transparent, solid, organic plastic material
DE1548707C3 (de) * 1966-07-26 1979-02-15 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Fotoelektrischer Schrittgeber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0262349A3 (en) * 1986-10-02 1989-06-21 Dr. Johannes Heidenhain Gmbh Photoelectric angle measuring device

Also Published As

Publication number Publication date
DE1963835C3 (de) 1979-06-21
AU1012370A (en) 1971-07-08
US3630625A (en) 1971-12-28
DE1963835A1 (de) 1970-09-17
GB1303261A (xx) 1973-01-17
CH519700A (de) 1972-02-29
FR2028166A1 (xx) 1970-10-09
NL6900491A (xx) 1970-07-14
DE1963835B2 (de) 1978-10-19
JPS501217B1 (xx) 1975-01-16

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