JPS51126191A - Optical method to inspect a surface condition of a glass plate - Google Patents

Optical method to inspect a surface condition of a glass plate

Info

Publication number
JPS51126191A
JPS51126191A JP5045875A JP5045875A JPS51126191A JP S51126191 A JPS51126191 A JP S51126191A JP 5045875 A JP5045875 A JP 5045875A JP 5045875 A JP5045875 A JP 5045875A JP S51126191 A JPS51126191 A JP S51126191A
Authority
JP
Japan
Prior art keywords
glass plate
inspect
surface condition
optical method
particles
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
JP5045875A
Other languages
Japanese (ja)
Inventor
Shunji Hibino
Kiyoshi Murata
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.)
Central Glass Co Ltd
Original Assignee
Central Glass 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 Central Glass Co Ltd filed Critical Central Glass Co Ltd
Priority to JP5045875A priority Critical patent/JPS51126191A/en
Publication of JPS51126191A publication Critical patent/JPS51126191A/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
    • 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
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/896—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • 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)

Abstract

PURPOSE:To provide an optical inspection method which is possible to detect microscopic scracthes and foreign particles on the surface of the glass plate by magnefying the amount of reduced beam which is caused by the scratches and the particles on the glass plate under the studying.
JP5045875A 1975-04-25 1975-04-25 Optical method to inspect a surface condition of a glass plate Pending JPS51126191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5045875A JPS51126191A (en) 1975-04-25 1975-04-25 Optical method to inspect a surface condition of a glass plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5045875A JPS51126191A (en) 1975-04-25 1975-04-25 Optical method to inspect a surface condition of a glass plate

Publications (1)

Publication Number Publication Date
JPS51126191A true JPS51126191A (en) 1976-11-04

Family

ID=12859417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5045875A Pending JPS51126191A (en) 1975-04-25 1975-04-25 Optical method to inspect a surface condition of a glass plate

Country Status (1)

Country Link
JP (1) JPS51126191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04178545A (en) * 1990-11-14 1992-06-25 Fuji Photo Film Co Ltd Method and apparatus for inspecting transparent band-like body

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198951A (en) * 1961-05-31 1965-08-03 Licentia Gmbh Photoelectric control device for a flaw detector for moving webs
US3743431A (en) * 1972-05-09 1973-07-03 Philco Ford Corp Radiation sensitive means for detecting flaws in glass
JPS494386U (en) * 1972-04-14 1974-01-15

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198951A (en) * 1961-05-31 1965-08-03 Licentia Gmbh Photoelectric control device for a flaw detector for moving webs
JPS494386U (en) * 1972-04-14 1974-01-15
US3743431A (en) * 1972-05-09 1973-07-03 Philco Ford Corp Radiation sensitive means for detecting flaws in glass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04178545A (en) * 1990-11-14 1992-06-25 Fuji Photo Film Co Ltd Method and apparatus for inspecting transparent band-like body

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