JPS5737253A - Defect detection device for transparent body - Google Patents

Defect detection device for transparent body

Info

Publication number
JPS5737253A
JPS5737253A JP11296280A JP11296280A JPS5737253A JP S5737253 A JPS5737253 A JP S5737253A JP 11296280 A JP11296280 A JP 11296280A JP 11296280 A JP11296280 A JP 11296280A JP S5737253 A JPS5737253 A JP S5737253A
Authority
JP
Japan
Prior art keywords
detection
slit
lights
light
panel
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
JP11296280A
Other languages
Japanese (ja)
Inventor
Chuzaburo Yamazaki
Eiji Takamine
Daisaku Tomioka
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.)
AGC Inc
Original Assignee
Asahi 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP11296280A priority Critical patent/JPS5737253A/en
Publication of JPS5737253A publication Critical patent/JPS5737253A/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

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 increase sensitivity of detection by projecting lights from different directions using plural number of lights sources to the position of an object to be inspected to check defects and detect the scattered light through a slit shutting out direct light. CONSTITUTION:Lights coming from two light sources 2, 2', being arranged on both sides of a dark-colored plate 7, are projected to the detection range of a TV-panel 1. The scattered light is received by a detector 4 through a slit 5 of a slit type shielding plate 3. If necessary, the detection part is illuminated by light sources 10, 10'. The TV-panel 1 is moved in the direction of the arrow, and continuous detection is performed. This method increases detection sensitivity of the equipment.
JP11296280A 1980-08-19 1980-08-19 Defect detection device for transparent body Pending JPS5737253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11296280A JPS5737253A (en) 1980-08-19 1980-08-19 Defect detection device for transparent body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11296280A JPS5737253A (en) 1980-08-19 1980-08-19 Defect detection device for transparent body

Publications (1)

Publication Number Publication Date
JPS5737253A true JPS5737253A (en) 1982-03-01

Family

ID=14599889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11296280A Pending JPS5737253A (en) 1980-08-19 1980-08-19 Defect detection device for transparent body

Country Status (1)

Country Link
JP (1) JPS5737253A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189722A (en) * 1983-04-13 1984-10-27 Hitachi Ltd Timing signal generating circuit
JPS61186806A (en) * 1985-02-14 1986-08-20 Nec Corp Fault detecting device for transparent body
JPH02102439A (en) * 1988-10-12 1990-04-16 Nissan Motor Co Ltd Evaluating device for sticking body or the like on plate surface
JPH04344447A (en) * 1991-05-22 1992-12-01 Shin Etsu Chem Co Ltd Detecting device for defect in transparent glass substrate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189722A (en) * 1983-04-13 1984-10-27 Hitachi Ltd Timing signal generating circuit
JPS61186806A (en) * 1985-02-14 1986-08-20 Nec Corp Fault detecting device for transparent body
JPH02102439A (en) * 1988-10-12 1990-04-16 Nissan Motor Co Ltd Evaluating device for sticking body or the like on plate surface
JPH04344447A (en) * 1991-05-22 1992-12-01 Shin Etsu Chem Co Ltd Detecting device for defect in transparent glass substrate

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