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GB2138588B - Optical grating for displacement sensor - Google Patents
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GB2138588B - Optical grating for displacement sensor - Google Patents

Optical grating for displacement sensor

Info

Publication number
GB2138588B
GB2138588B GB08327702A GB8327702A GB2138588B GB 2138588 B GB2138588 B GB 2138588B GB 08327702 A GB08327702 A GB 08327702A GB 8327702 A GB8327702 A GB 8327702A GB 2138588 B GB2138588 B GB 2138588B
Authority
GB
United Kingdom
Prior art keywords
displacement sensor
optical grating
grating
optical
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
Application number
GB08327702A
Other versions
GB8327702D0 (en
GB2138588A (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
Priority to GB08327702A priority Critical patent/GB2138588B/en
Publication of GB8327702D0 publication Critical patent/GB8327702D0/en
Priority to DE19843414590 priority patent/DE3414590A1/en
Priority to FR8406229A priority patent/FR2544875B1/en
Priority to NL8401284A priority patent/NL8401284A/en
Publication of GB2138588A publication Critical patent/GB2138588A/en
Application granted granted Critical
Publication of GB2138588B publication Critical patent/GB2138588B/en
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
    • G01D5/268—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)
GB08327702A 1983-04-19 1983-10-17 Optical grating for displacement sensor Expired GB2138588B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB08327702A GB2138588B (en) 1983-04-19 1983-10-17 Optical grating for displacement sensor
DE19843414590 DE3414590A1 (en) 1983-04-19 1984-04-18 OPTICAL SENSOR SENSOR AND THE SENSOR THEREFORE
FR8406229A FR2544875B1 (en) 1983-04-19 1984-04-19 OPTICAL DISPLACEMENT SENSOR
NL8401284A NL8401284A (en) 1983-04-19 1984-04-19 OPTICAL MOVEMENT SCAN.

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 (3)

Publication Number Publication Date
GB8327702D0 GB8327702D0 (en) 1983-11-16
GB2138588A GB2138588A (en) 1984-10-24
GB2138588B true GB2138588B (en) 1987-07-29

Family

ID=26285867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08327702A Expired GB2138588B (en) 1983-04-19 1983-10-17 Optical grating for 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
NL8401284A (en) 1984-11-16
FR2544875A1 (en) 1984-10-26
GB8327702D0 (en) 1983-11-16
DE3414590A1 (en) 1984-10-25
FR2544875B1 (en) 1990-03-02
GB2138588A (en) 1984-10-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee