CA1327637C - Systeme d'eclairage a reseau pulse pour l'inspection video - Google Patents

Systeme d'eclairage a reseau pulse pour l'inspection video

Info

Publication number
CA1327637C
CA1327637C CA000608413A CA608413A CA1327637C CA 1327637 C CA1327637 C CA 1327637C CA 000608413 A CA000608413 A CA 000608413A CA 608413 A CA608413 A CA 608413A CA 1327637 C CA1327637 C CA 1327637C
Authority
CA
Canada
Prior art keywords
light
lighting
array
primary
elements
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
CA000608413A
Other languages
English (en)
Inventor
Don W. Cochran
James R. Austin
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.)
Pressco Inc
Original Assignee
Pressco Inc
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 to US07/336,642 priority Critical patent/US4882498A/en
Application filed by Pressco Inc filed Critical Pressco Inc
Priority to CA000608413A priority patent/CA1327637C/fr
Priority claimed from US07/409,148 external-priority patent/US5051825A/en
Priority to US07/409,148 priority patent/US5051825A/en
Priority to US07/439,553 priority patent/US4972093A/en
Priority to EP90915370A priority patent/EP0498811B1/fr
Priority to AU65380/90A priority patent/AU6538090A/en
Priority to PCT/US1990/005268 priority patent/WO1991006846A1/fr
Priority to PCT/US1990/005269 priority patent/WO1991004634A1/fr
Priority to JP2513780A priority patent/JPH06507470A/ja
Priority to AU64486/90A priority patent/AU6448690A/en
Priority to EP90914626A priority patent/EP0493487B1/fr
Priority to CA002064014A priority patent/CA2064014A1/fr
Priority to CA002064250A priority patent/CA2064250C/fr
Priority to US07/622,349 priority patent/US5072127A/en
Publication of CA1327637C publication Critical patent/CA1327637C/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • 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
    • G01N21/8806—Specially adapted optical and illumination features
    • 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
    • G01N2021/845—Objects on a conveyor
    • G01N2021/8455—Objects on a conveyor and using position detectors
    • 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
    • G01N2021/8887—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 based on image processing techniques
    • 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
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • G01N21/909—Investigating the presence of flaws or contamination in a container or its contents in opaque containers or opaque container parts, e.g. cans, tins, caps, labels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/061—Sources
    • G01N2201/06146—Multisources for homogeneisation, as well sequential as simultaneous operation
    • G01N2201/06153—Multisources for homogeneisation, as well sequential as simultaneous operation the sources being LED's
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/10—Scanning
    • G01N2201/102—Video camera

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)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA000608413A 1987-10-09 1989-08-15 Systeme d'eclairage a reseau pulse pour l'inspection video Expired - Fee Related CA1327637C (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US07/336,642 US4882498A (en) 1987-10-09 1989-04-07 Pulsed-array video inspection lighting system
CA000608413A CA1327637C (fr) 1987-10-09 1989-08-15 Systeme d'eclairage a reseau pulse pour l'inspection video
US07/409,148 US5051825A (en) 1989-04-07 1989-09-19 Dual image video inspection apparatus
US07/439,553 US4972093A (en) 1987-10-09 1989-11-20 Inspection lighting system
JP2513780A JPH06507470A (ja) 1989-08-15 1990-09-17 二重画像ビデオ検査装置
CA002064014A CA2064014A1 (fr) 1989-08-15 1990-09-17 Appareil d'inspection video a deux images
PCT/US1990/005268 WO1991006846A1 (fr) 1989-08-15 1990-09-17 Appareil d'eclairage pour controle video
PCT/US1990/005269 WO1991004634A1 (fr) 1989-08-15 1990-09-17 Appareil d'inspection video a double image
EP90915370A EP0498811B1 (fr) 1989-08-15 1990-09-17 Appareil d'eclairage pour controle video
AU64486/90A AU6448690A (en) 1989-08-15 1990-09-17 Dual image video inspection apparatus
EP90914626A EP0493487B1 (fr) 1989-08-15 1990-09-17 Appareil d'inspection video a double image
AU65380/90A AU6538090A (en) 1989-08-15 1990-09-17 Engineered video inspection lighting array
CA002064250A CA2064250C (fr) 1989-08-15 1990-09-17 Reseau d'eclairage pour l'inspection video
US07/622,349 US5072127A (en) 1987-10-09 1990-11-29 Engineered video inspecting lighting array

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10726587A 1987-10-09 1987-10-09
CA000608413A CA1327637C (fr) 1987-10-09 1989-08-15 Systeme d'eclairage a reseau pulse pour l'inspection video
US07/409,148 US5051825A (en) 1989-04-07 1989-09-19 Dual image video inspection apparatus
US42978089A 1989-10-31 1989-10-31

Publications (1)

Publication Number Publication Date
CA1327637C true CA1327637C (fr) 1994-03-08

Family

ID=27426698

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000608413A Expired - Fee Related CA1327637C (fr) 1987-10-09 1989-08-15 Systeme d'eclairage a reseau pulse pour l'inspection video

Country Status (1)

Country Link
CA (1) CA1327637C (fr)

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