JPS5229789A - Apparatus for derection, identification and indication of surface defe cts of travelling sheet-form objects - Google Patents

Apparatus for derection, identification and indication of surface defe cts of travelling sheet-form objects

Info

Publication number
JPS5229789A
JPS5229789A JP10561675A JP10561675A JPS5229789A JP S5229789 A JPS5229789 A JP S5229789A JP 10561675 A JP10561675 A JP 10561675A JP 10561675 A JP10561675 A JP 10561675A JP S5229789 A JPS5229789 A JP S5229789A
Authority
JP
Japan
Prior art keywords
derection
defe
cts
indication
identification
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.)
Pending
Application number
JP10561675A
Other languages
Japanese (ja)
Inventor
Masayoshi Yamane
Katsumi Hirayama
Tatsuo Nakama
Kenji Tanaka
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.)
Yaskawa Electric Corp
Toray Industries Inc
Original Assignee
Toray Industries Inc
Yaskawa Electric Manufacturing Co 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 Toray Industries Inc, Yaskawa Electric Manufacturing Co Ltd filed Critical Toray Industries Inc
Priority to JP10561675A priority Critical patent/JPS5229789A/en
Publication of JPS5229789A publication Critical patent/JPS5229789A/en
Pending 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
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details

Abstract

PURPOSE:To detect any defect on sheet-form objects by means of two photoelectric converters and make logical operation of the outputs from these photoelectric converters thereby identifying the kind of the defect.
JP10561675A 1975-09-02 1975-09-02 Apparatus for derection, identification and indication of surface defe cts of travelling sheet-form objects Pending JPS5229789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10561675A JPS5229789A (en) 1975-09-02 1975-09-02 Apparatus for derection, identification and indication of surface defe cts of travelling sheet-form objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10561675A JPS5229789A (en) 1975-09-02 1975-09-02 Apparatus for derection, identification and indication of surface defe cts of travelling sheet-form objects

Publications (1)

Publication Number Publication Date
JPS5229789A true JPS5229789A (en) 1977-03-05

Family

ID=14412419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10561675A Pending JPS5229789A (en) 1975-09-02 1975-09-02 Apparatus for derection, identification and indication of surface defe cts of travelling sheet-form objects

Country Status (1)

Country Link
JP (1) JPS5229789A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869771A (en) * 1981-10-22 1983-04-26 セントラル硝子株式会社 Graphite fluoride formed body and manufacture
JPS59220636A (en) * 1983-05-30 1984-12-12 Konishiroku Photo Ind Co Ltd Detector for defect of sheet-shaped product
US5047640A (en) * 1989-01-19 1991-09-10 Brunnschweiler D Web inspecting method
JP2011185879A (en) * 2010-03-10 2011-09-22 Sony Corp Optical measuring instrument and method of the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890790A (en) * 1972-03-07 1973-11-27
JPS4962176A (en) * 1972-05-09 1974-06-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890790A (en) * 1972-03-07 1973-11-27
JPS4962176A (en) * 1972-05-09 1974-06-17

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869771A (en) * 1981-10-22 1983-04-26 セントラル硝子株式会社 Graphite fluoride formed body and manufacture
JPS6050739B2 (en) * 1981-10-22 1985-11-09 セントラル硝子株式会社 Fluorinated graphite molded body and its manufacturing method
JPS59220636A (en) * 1983-05-30 1984-12-12 Konishiroku Photo Ind Co Ltd Detector for defect of sheet-shaped product
US5047640A (en) * 1989-01-19 1991-09-10 Brunnschweiler D Web inspecting method
JP2011185879A (en) * 2010-03-10 2011-09-22 Sony Corp Optical measuring instrument and method of the same
US8780338B2 (en) 2010-03-10 2014-07-15 Sony Corporation Optical measuring device and optical measuring method
US9766174B2 (en) 2010-03-10 2017-09-19 Sony Corporation Optical measuring device and optical measuring method

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