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FR2363141A1 - Procede et dispositif pour le controle automatique des pieces au moyen d'une technique de comparaison holographique - Google Patents

Procede et dispositif pour le controle automatique des pieces au moyen d'une technique de comparaison holographique

Info

Publication number
FR2363141A1
FR2363141A1 FR7725786A FR7725786A FR2363141A1 FR 2363141 A1 FR2363141 A1 FR 2363141A1 FR 7725786 A FR7725786 A FR 7725786A FR 7725786 A FR7725786 A FR 7725786A FR 2363141 A1 FR2363141 A1 FR 2363141A1
Authority
FR
France
Prior art keywords
parts
holographic
comparison technique
automatic checking
light ray
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Withdrawn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
FR7725786A
Other languages
English (en)
Inventor
Theodore Tschudi
Guy Indebetouw
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.)
Lasag AG
Original Assignee
Lasag AG
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 Lasag AG filed Critical Lasag AG
Publication of FR2363141A1 publication Critical patent/FR2363141A1/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Withdrawn legal-status Critical Current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
    • G02B27/46—Systems using spatial filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/2441—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using interferometry
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Holo Graphy (AREA)

Abstract

Procédé et dispositif pour le contrôle automatique des pièces au moyen d'une technique de comparaison holographique. Les pièces à contrôler traversent de façon continue le rayon lumineux dirigé sur l'image holographique. Sur le filtre holographique se trouvent les spectres spatialement séparés mais se chevauchant partiellement d'une pièce-étalon sous différentes orientations. En faisant passer la pièce à contrôler à travers le rayon lumineux, celui-ci est diffracté de telle façon que tous les spectres sont recouverts. La tache de corrélation est mesurée à travers un diaphragme à fente Contrôle dimensionnel des pièces métrologie.
FR7725786A 1976-08-27 1977-08-24 Procede et dispositif pour le controle automatique des pieces au moyen d'une technique de comparaison holographique Withdrawn FR2363141A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1087076A CH614053A5 (en) 1976-08-27 1976-08-27 Method and device for automatic monitoring of workpieces by means of a holographic comparison technique

Publications (1)

Publication Number Publication Date
FR2363141A1 true FR2363141A1 (fr) 1978-03-24

Family

ID=4367702

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725786A Withdrawn FR2363141A1 (fr) 1976-08-27 1977-08-24 Procede et dispositif pour le controle automatique des pieces au moyen d'une technique de comparaison holographique

Country Status (3)

Country Link
CH (1) CH614053A5 (fr)
FR (1) FR2363141A1 (fr)
GB (1) GB1570428A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8619006D0 (en) * 1986-08-04 1986-09-17 Hugle W B Positional detection of objects
GB2194353B (en) * 1986-08-04 1990-02-21 Hugle William Bell The method of and apparatus for the holographic positional detection of objects

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2064246A1 (de) * 1970-12-29 1972-07-13 Agfa Gevaert Ag Verfahren und Vorrichtung zum Erkennen eines bestimmten Suchobjekts in einer Vorlage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2064246A1 (de) * 1970-12-29 1972-07-13 Agfa Gevaert Ag Verfahren und Vorrichtung zum Erkennen eines bestimmten Suchobjekts in einer Vorlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *

Also Published As

Publication number Publication date
CH614053A5 (en) 1979-10-31
GB1570428A (en) 1980-07-02

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Legal Events

Date Code Title Description
ST Notification of lapse