FR2452100A1 - Appareil pour le controle de defauts sur un objet - Google Patents

Appareil pour le controle de defauts sur un objet

Info

Publication number
FR2452100A1
FR2452100A1 FR8006170A FR8006170A FR2452100A1 FR 2452100 A1 FR2452100 A1 FR 2452100A1 FR 8006170 A FR8006170 A FR 8006170A FR 8006170 A FR8006170 A FR 8006170A FR 2452100 A1 FR2452100 A1 FR 2452100A1
Authority
FR
France
Prior art keywords
signal
video signal
time
detection
relation
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.)
Granted
Application number
FR8006170A
Other languages
English (en)
Other versions
FR2452100B1 (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.)
Hajime Industries Ltd
Original Assignee
Hajime Industries 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
Application filed by Hajime Industries Ltd filed Critical Hajime Industries Ltd
Publication of FR2452100A1 publication Critical patent/FR2452100A1/fr
Application granted granted Critical
Publication of FR2452100B1 publication Critical patent/FR2452100B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

L'APPAREIL SELON L'INVENTION COMPREND DES MOYENS OPTIQUES 2 POUR CAPTER L'IMAGE DE L'OBJET 1 DEVANT ETRE EXAMINE ET POUR PRODUIRE UN SIGNAL VIDEO (V) REPRESENTATIF DE CET OBJET; UNE PREMIERE SECTION DE DETECTION 32 POUR RECEVOIR CE SIGNAL VIDEO ET POUR PRODUIRE UN SIGNAL DE SORTIE EN REPONSE A UNE VARIATION POSITIVE DU RAPPORT DU SIGNAL VIDEO PAR RAPPORT AU TEMPS; UNE SECONDE SECTION DE DETECTION 33 POUR RECEVOIR LE SIGNAL VIDEO ET POUR PRODUIRE UN SIGNAL DE SORTIE EN REPONSE A UN CHANGEMENT DE RAPPORT NEGATIF DU SIGNAL VIDEO PAR RAPPORT AU TEMPS; ET DES MOYENS DE SORTIE 38 POUR PRODUIRE UN SIGNAL DE DETECTION DE DEFAUT SEULEMENT APRES QUE L'UNE DES PREMIERE ET SECONDE SECTIONS DE DETECTION A PRODUIT UN SIGNAL DE SORTIE, A CONDITION QUE L'AUTRE SECTION PRODUISE AUSSI UN SIGNAL DE SORTIE DANS UNE PERIODE DE TEMPS DONNEE. CONTROLE DES DEFAUTS SUR LES PRODUITS INDUSTRIELS.
FR8006170A 1979-03-22 1980-03-19 Appareil pour le controle de defauts sur un objet Granted FR2452100A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3346079A JPS55125439A (en) 1979-03-22 1979-03-22 Defect inspection device

Publications (2)

Publication Number Publication Date
FR2452100A1 true FR2452100A1 (fr) 1980-10-17
FR2452100B1 FR2452100B1 (fr) 1985-02-08

Family

ID=12387144

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8006170A Granted FR2452100A1 (fr) 1979-03-22 1980-03-19 Appareil pour le controle de defauts sur un objet

Country Status (6)

Country Link
US (1) US4509076A (fr)
JP (1) JPS55125439A (fr)
CA (1) CA1126857A (fr)
DE (1) DE3011014A1 (fr)
FR (1) FR2452100A1 (fr)
GB (1) GB2054837B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3115634A1 (de) * 1981-04-18 1982-11-04 Feldmühle AG, 4000 Düsseldorf Verfahren und vorrichtung zum pruefen von durch kreislinien begrenzten flaechen
JPS5842956A (ja) * 1981-09-07 1983-03-12 Hitachi Cable Ltd 平板条片傷検査装置における傷弁別方法および装置
JPS5863838A (ja) * 1981-10-14 1983-04-15 Fuji Electric Co Ltd 欠陥検出回路
JPH0616013B2 (ja) * 1984-11-22 1994-03-02 肇産業株式会社 自動検査装置
DE3620129A1 (de) * 1986-06-14 1987-12-17 Zeiss Carl Fa Vorrichtung zum pruefen von bauteilen aus transparentem material auf oberflaechenfehler und einschluesse
DE3620108A1 (de) * 1986-06-14 1987-12-17 Zeiss Carl Fa Vorrichtung zum beleuchten von bauteilen aus transparentem material bei der fehlerpruefung
JPS63182554A (ja) * 1987-01-23 1988-07-27 Fuji Photo Film Co Ltd 表面検査装置
BE1000294A3 (nl) * 1987-02-05 1988-10-11 Wetenschappelijk En Tech Ct Va Werkwijze voor het meten van de garendichtheid van een weefsel of de steekdichtheid van een breisel en inrichting voor het uitvoeren van deze werkwijze.
US5072127A (en) * 1987-10-09 1991-12-10 Pressco, Inc. Engineered video inspecting lighting array
US5051825A (en) * 1989-04-07 1991-09-24 Pressco, Inc. Dual image video inspection apparatus
US4972093A (en) * 1987-10-09 1990-11-20 Pressco Inc. Inspection lighting system
US4882498A (en) * 1987-10-09 1989-11-21 Pressco, Inc. Pulsed-array video inspection lighting system
US5172005A (en) * 1991-02-20 1992-12-15 Pressco Technology, Inc. Engineered lighting system for tdi inspection comprising means for controlling lighting elements in accordance with specimen displacement
USH1616H (en) * 1994-05-31 1996-12-03 Minnesota Mining And Manufacturing Company Web inspection system having enhanced video signal preprocessing
JP3099666B2 (ja) * 1995-02-16 2000-10-16 株式会社デンソー 物品検査装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715476A (en) * 1969-01-16 1973-02-06 Nippon Steel Corp Method and apparatus for detecting pinholes on sheet articles
US3646353A (en) * 1970-10-19 1972-02-29 Eastman Kodak Co Flying spot scanner blanking
US3795452A (en) * 1973-02-28 1974-03-05 Us Air Force Instrument for automatically inspecting integrated circuit masks for pinholes and spots
US3932042A (en) * 1974-05-20 1976-01-13 Barry-Wehmiller Company Container inspection apparatus and method of inspection
US4002823A (en) * 1974-11-01 1977-01-11 Ball Corporation Method and apparatus for video inspection of articles of manufacture
US4110048A (en) * 1974-11-05 1978-08-29 Kawasaki Steel Corporation Method of and an apparatus for inspecting a traveling sheet material
US4011457A (en) * 1975-08-06 1977-03-08 E. I. Du Pont De Nemours And Company Web defect monitor for abrupt changes in web density

Also Published As

Publication number Publication date
GB2054837B (en) 1983-06-08
GB2054837A (en) 1981-02-18
JPH0135295B2 (fr) 1989-07-25
FR2452100B1 (fr) 1985-02-08
JPS55125439A (en) 1980-09-27
DE3011014A1 (de) 1980-10-02
CA1126857A (fr) 1982-06-29
DE3011014C2 (fr) 1990-07-12
US4509076A (en) 1985-04-02

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Legal Events

Date Code Title Description
ST Notification of lapse