AT281449B - Device for measuring parallelism errors of two surfaces of a transparent pane - Google Patents

Device for measuring parallelism errors of two surfaces of a transparent pane

Info

Publication number
AT281449B
AT281449B AT191466A AT191466A AT281449B AT 281449 B AT281449 B AT 281449B AT 191466 A AT191466 A AT 191466A AT 191466 A AT191466 A AT 191466A AT 281449 B AT281449 B AT 281449B
Authority
AT
Austria
Prior art keywords
transparent pane
parallelism errors
measuring parallelism
measuring
errors
Prior art date
Application number
AT191466A
Other languages
German (de)
Inventor
Paul Dr Migeotte
Original Assignee
Inst Nat Du Verre
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 Inst Nat Du Verre filed Critical Inst Nat Du Verre
Application granted granted Critical
Publication of AT281449B publication Critical patent/AT281449B/en

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
    • 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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • 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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General 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)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Transform (AREA)
AT191466A 1965-03-31 1966-03-01 Device for measuring parallelism errors of two surfaces of a transparent pane AT281449B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU48289 1965-03-31

Publications (1)

Publication Number Publication Date
AT281449B true AT281449B (en) 1970-05-25

Family

ID=19724236

Family Applications (1)

Application Number Title Priority Date Filing Date
AT191466A AT281449B (en) 1965-03-31 1966-03-01 Device for measuring parallelism errors of two surfaces of a transparent pane

Country Status (6)

Country Link
AT (1) AT281449B (en)
BE (1) BE675046A (en)
DE (1) DE1548670A1 (en)
FR (1) FR1467315A (en)
GB (1) GB1145353A (en)
NL (1) NL6603910A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3728210A1 (en) * 1987-08-24 1989-03-16 Sick Optik Elektronik Erwin OPTICAL SCANNER FOR TRANSPARENT RAILWAY MATERIAL
GB0817654D0 (en) 2008-09-26 2008-11-05 Pilkington Automotive Deutschland Gmbh Laminated glazing
CN110823109B (en) * 2019-11-08 2022-05-06 中国石油天然气集团有限公司 Detection method based on liner wall thickness and wall thickness difference detection device

Also Published As

Publication number Publication date
NL6603910A (en) 1966-10-03
DE1548670A1 (en) 1969-10-30
BE675046A (en) 1966-05-03
FR1467315A (en) 1967-01-27
GB1145353A (en) 1969-03-12

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee