JPS53120587A - Inspecting method and inspecting apparatus for striae of glass blocks - Google Patents

Inspecting method and inspecting apparatus for striae of glass blocks

Info

Publication number
JPS53120587A
JPS53120587A JP3652977A JP3652977A JPS53120587A JP S53120587 A JPS53120587 A JP S53120587A JP 3652977 A JP3652977 A JP 3652977A JP 3652977 A JP3652977 A JP 3652977A JP S53120587 A JPS53120587 A JP S53120587A
Authority
JP
Japan
Prior art keywords
inspecting
striae
glass blocks
glass
inspecting apparatus
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
JP3652977A
Other languages
Japanese (ja)
Inventor
Shiyouichi Inoue
Yuji Sakai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3652977A priority Critical patent/JPS53120587A/en
Publication of JPS53120587A publication Critical patent/JPS53120587A/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
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/958—Inspecting transparent materials or objects, e.g. windscreens

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)

Abstract

PURPOSE:To detect the presence or not of striae in glass block prior to polishing by dipping the glass to be examined into liquid having a light refractive index approximate to that of said glass block and radiating light from a point light source from above.
JP3652977A 1977-03-30 1977-03-30 Inspecting method and inspecting apparatus for striae of glass blocks Pending JPS53120587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3652977A JPS53120587A (en) 1977-03-30 1977-03-30 Inspecting method and inspecting apparatus for striae of glass blocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3652977A JPS53120587A (en) 1977-03-30 1977-03-30 Inspecting method and inspecting apparatus for striae of glass blocks

Publications (1)

Publication Number Publication Date
JPS53120587A true JPS53120587A (en) 1978-10-21

Family

ID=12472311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3652977A Pending JPS53120587A (en) 1977-03-30 1977-03-30 Inspecting method and inspecting apparatus for striae of glass blocks

Country Status (1)

Country Link
JP (1) JPS53120587A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60108733A (en) * 1983-11-18 1985-06-14 Matsushita Electric Ind Co Ltd Striae detecting method of raw rock crystal
JPS60155940A (en) * 1984-01-25 1985-08-16 Matsushita Electric Ind Co Ltd Detection of optical defect of light transmissive optical body
JPS60228942A (en) * 1984-04-26 1985-11-14 Matsushita Electric Ind Co Ltd Apparatus for inspecting striae of crystal crude stone
JP2013145236A (en) * 2012-01-16 2013-07-25 Samsung Corning Precision Materials Co Ltd Apparatus for measuring transmittance of cover glass for photovoltaic cell

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524283A (en) * 1974-09-18 1977-01-13 Dihaco Diamanten Handels Co Method of detecting coated substance in jewel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524283A (en) * 1974-09-18 1977-01-13 Dihaco Diamanten Handels Co Method of detecting coated substance in jewel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60108733A (en) * 1983-11-18 1985-06-14 Matsushita Electric Ind Co Ltd Striae detecting method of raw rock crystal
JPS60155940A (en) * 1984-01-25 1985-08-16 Matsushita Electric Ind Co Ltd Detection of optical defect of light transmissive optical body
JPH0422216B2 (en) * 1984-01-25 1992-04-16 Matsushita Electric Ind Co Ltd
JPS60228942A (en) * 1984-04-26 1985-11-14 Matsushita Electric Ind Co Ltd Apparatus for inspecting striae of crystal crude stone
JP2013145236A (en) * 2012-01-16 2013-07-25 Samsung Corning Precision Materials Co Ltd Apparatus for measuring transmittance of cover glass for photovoltaic cell

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