FR2544875B1 - OPTICAL DISPLACEMENT SENSOR - Google Patents

OPTICAL DISPLACEMENT SENSOR

Info

Publication number
FR2544875B1
FR2544875B1 FR8406229A FR8406229A FR2544875B1 FR 2544875 B1 FR2544875 B1 FR 2544875B1 FR 8406229 A FR8406229 A FR 8406229A FR 8406229 A FR8406229 A FR 8406229A FR 2544875 B1 FR2544875 B1 FR 2544875B1
Authority
FR
France
Prior art keywords
displacement sensor
optical displacement
optical
sensor
displacement
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.)
Expired - Fee Related
Application number
FR8406229A
Other languages
French (fr)
Other versions
FR2544875A1 (en
Inventor
David Niall Macfadyen
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics Ltd
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
Priority claimed from GB838310567A external-priority patent/GB8310567D0/en
Application filed by Thales Optronics Ltd filed Critical Thales Optronics Ltd
Publication of FR2544875A1 publication Critical patent/FR2544875A1/en
Application granted granted Critical
Publication of FR2544875B1 publication Critical patent/FR2544875B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01D5/268—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 using optical fibres
    • 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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
FR8406229A 1983-04-19 1984-04-19 OPTICAL DISPLACEMENT SENSOR Expired - Fee Related FR2544875B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838310567A GB8310567D0 (en) 1983-04-19 1983-04-19 Optical gratings
GB08327702A GB2138588B (en) 1983-04-19 1983-10-17 Optical grating for displacement sensor

Publications (2)

Publication Number Publication Date
FR2544875A1 FR2544875A1 (en) 1984-10-26
FR2544875B1 true FR2544875B1 (en) 1990-03-02

Family

ID=26285867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8406229A Expired - Fee Related FR2544875B1 (en) 1983-04-19 1984-04-19 OPTICAL DISPLACEMENT SENSOR

Country Status (4)

Country Link
DE (1) DE3414590A1 (en)
FR (1) FR2544875B1 (en)
GB (1) GB2138588B (en)
NL (1) NL8401284A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543179A1 (en) * 1985-12-06 1987-06-11 Philips Patentverwaltung OPTICAL TRAVEL SENSOR WITH A FILTER
DE4317064A1 (en) * 1993-05-21 1994-11-24 Bosch Gmbh Robert Position measuring device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR700676A (en) * 1929-08-14 1931-03-05 Binder for loose sheets
GB506667A (en) * 1936-12-07 1939-06-01 Virgil Bernard Sease Improvements in or relating to the production of diffration gratings and of multi-colour screens for use in colour photography
GB1092881A (en) * 1963-01-31 1967-11-29 Emi Ltd Improvements relating to colour television apparatus
CH505394A (en) * 1970-08-05 1971-03-31 Balzers Patent Beteilig Ag Filters for lenses for generating optical images with diffraction phenomena
DE2645075C2 (en) * 1976-10-06 1985-06-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Optical arrangement for generating spectrally decomposed images
GB1592902A (en) * 1978-01-17 1981-07-08 Rca Corp Diffractive-subtractive light filter blank
SE411955B (en) * 1978-06-02 1980-02-11 Asea Ab FIBEROPTICAL METDON WITH MOST TWO FIBERS

Also Published As

Publication number Publication date
GB2138588B (en) 1987-07-29
NL8401284A (en) 1984-11-16
FR2544875A1 (en) 1984-10-26
GB8327702D0 (en) 1983-11-16
DE3414590A1 (en) 1984-10-25
GB2138588A (en) 1984-10-24

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Legal Events

Date Code Title Description
ST Notification of lapse