FR2274023A1 - Procede et dispositif de mesure de deplacements a l'aide d'un reseau de diffraction - Google Patents

Procede et dispositif de mesure de deplacements a l'aide d'un reseau de diffraction

Info

Publication number
FR2274023A1
FR2274023A1 FR7517526A FR7517526A FR2274023A1 FR 2274023 A1 FR2274023 A1 FR 2274023A1 FR 7517526 A FR7517526 A FR 7517526A FR 7517526 A FR7517526 A FR 7517526A FR 2274023 A1 FR2274023 A1 FR 2274023A1
Authority
FR
France
Prior art keywords
objects
ray
light source
relative displacement
diffraction grating
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.)
Withdrawn
Application number
FR7517526A
Other languages
English (en)
French (fr)
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.)
GENEVOISE INSTR PHYSIQUE
Original Assignee
GENEVOISE INSTR PHYSIQUE
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 GENEVOISE INSTR PHYSIQUE filed Critical GENEVOISE INSTR PHYSIQUE
Publication of FR2274023A1 publication Critical patent/FR2274023A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4255—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application for alignment or positioning purposes
    • 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
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4261—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element with major polarization dependent properties

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
FR7517526A 1974-06-07 1975-06-05 Procede et dispositif de mesure de deplacements a l'aide d'un reseau de diffraction Withdrawn FR2274023A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH779174A CH581824A5 (enrdf_load_stackoverflow) 1974-06-07 1974-06-07

Publications (1)

Publication Number Publication Date
FR2274023A1 true FR2274023A1 (fr) 1976-01-02

Family

ID=4330517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7517526A Withdrawn FR2274023A1 (fr) 1974-06-07 1975-06-05 Procede et dispositif de mesure de deplacements a l'aide d'un reseau de diffraction

Country Status (3)

Country Link
CH (1) CH581824A5 (enrdf_load_stackoverflow)
DE (1) DE2525317A1 (enrdf_load_stackoverflow)
FR (1) FR2274023A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496872A1 (fr) * 1980-12-23 1982-06-25 Sopelem Dispositif de mesure des variations de la position angulaire d'un solide et procede d'utilisation de ce dispositif

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496872A1 (fr) * 1980-12-23 1982-06-25 Sopelem Dispositif de mesure des variations de la position angulaire d'un solide et procede d'utilisation de ce dispositif

Also Published As

Publication number Publication date
CH581824A5 (enrdf_load_stackoverflow) 1976-11-15
DE2525317A1 (de) 1975-12-18

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Legal Events

Date Code Title Description
ST Notification of lapse