ATE262677T1 - Vorrichtung und verfahren zum prüfen einer oberfläche einer runden glasscheibe - Google Patents

Vorrichtung und verfahren zum prüfen einer oberfläche einer runden glasscheibe

Info

Publication number
ATE262677T1
ATE262677T1 AT97941167T AT97941167T ATE262677T1 AT E262677 T1 ATE262677 T1 AT E262677T1 AT 97941167 T AT97941167 T AT 97941167T AT 97941167 T AT97941167 T AT 97941167T AT E262677 T1 ATE262677 T1 AT E262677T1
Authority
AT
Austria
Prior art keywords
camera
disc
glass master
flat portion
testing
Prior art date
Application number
AT97941167T
Other languages
English (en)
Inventor
John M Suhan
Original Assignee
Wea Mfg 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
Application filed by Wea Mfg Inc filed Critical Wea Mfg Inc
Application granted granted Critical
Publication of ATE262677T1 publication Critical patent/ATE262677T1/de

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
    • G01N21/9506—Optical discs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • 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)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Surface Treatment Of Glass (AREA)
AT97941167T 1996-09-05 1997-09-05 Vorrichtung und verfahren zum prüfen einer oberfläche einer runden glasscheibe ATE262677T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70867196A 1996-09-05 1996-09-05
PCT/IB1997/001232 WO1998010268A1 (en) 1996-09-05 1997-09-05 Glass master surface inspector

Publications (1)

Publication Number Publication Date
ATE262677T1 true ATE262677T1 (de) 2004-04-15

Family

ID=24846740

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97941167T ATE262677T1 (de) 1996-09-05 1997-09-05 Vorrichtung und verfahren zum prüfen einer oberfläche einer runden glasscheibe

Country Status (6)

Country Link
EP (1) EP0865605B1 (de)
JP (1) JPH11515109A (de)
AT (1) ATE262677T1 (de)
AU (1) AU738854B2 (de)
DE (1) DE69728253T2 (de)
WO (1) WO1998010268A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002310939A (ja) * 2001-04-18 2002-10-23 Nec Corp 気泡検査装置
DE102004054102A1 (de) * 2004-11-09 2006-05-11 Dr. Schenk Gmbh Industriemesstechnik Verfahren und Vorrichtung zur Untersuchung eines scheibenförmigen Datenträgers
US7929129B2 (en) * 2009-05-22 2011-04-19 Corning Incorporated Inspection systems for glass sheets
US9784688B2 (en) * 2012-10-10 2017-10-10 Seagate Technology Llc Apparatus for uniformly irradiating and imaging an article

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477890A (en) * 1982-03-01 1984-10-16 Discovision Associates Mapping disc defect detector
JPS6367549A (ja) * 1986-09-10 1988-03-26 Pioneer Electronic Corp 光ディスク用レジスト原盤の欠陥検査及び膜厚測定装置
JPH0786470B2 (ja) * 1988-06-13 1995-09-20 富士写真フイルム株式会社 ディスク表面検査方法及び装置
JPH07140089A (ja) * 1993-11-16 1995-06-02 Hitachi Electron Eng Co Ltd 磁気ディスクのスクラッチ傷検査装置

Also Published As

Publication number Publication date
AU738854B2 (en) 2001-09-27
EP0865605A4 (de) 1999-12-01
AU4316897A (en) 1998-03-26
EP0865605B1 (de) 2004-03-24
DE69728253D1 (de) 2004-04-29
EP0865605A1 (de) 1998-09-23
WO1998010268A1 (en) 1998-03-12
DE69728253T2 (de) 2005-01-27
JPH11515109A (ja) 1999-12-21

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties