NO751987L - - Google Patents

Info

Publication number
NO751987L
NO751987L NO751987A NO751987A NO751987L NO 751987 L NO751987 L NO 751987L NO 751987 A NO751987 A NO 751987A NO 751987 A NO751987 A NO 751987A NO 751987 L NO751987 L NO 751987L
Authority
NO
Norway
Prior art keywords
film
light
carrier
diffuser
upper side
Prior art date
Application number
NO751987A
Other languages
English (en)
Norwegian (no)
Inventor
P M Toms
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Publication of NO751987L publication Critical patent/NO751987L/no

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/02Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/30Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
NO751987A 1974-06-07 1975-06-05 NO751987L (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2542074 1974-06-07

Publications (1)

Publication Number Publication Date
NO751987L true NO751987L (enrdf_load_stackoverflow) 1975-12-09

Family

ID=10227383

Family Applications (1)

Application Number Title Priority Date Filing Date
NO751987A NO751987L (enrdf_load_stackoverflow) 1974-06-07 1975-06-05

Country Status (9)

Country Link
JP (1) JPS5111464A (enrdf_load_stackoverflow)
AU (1) AU8181375A (enrdf_load_stackoverflow)
BE (1) BE829978A (enrdf_load_stackoverflow)
DE (1) DE2524982A1 (enrdf_load_stackoverflow)
DK (1) DK255675A (enrdf_load_stackoverflow)
FR (1) FR2274022A1 (enrdf_load_stackoverflow)
NL (1) NL7506740A (enrdf_load_stackoverflow)
NO (1) NO751987L (enrdf_load_stackoverflow)
SE (1) SE7506493L (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5643685A (en) * 1979-09-19 1981-04-22 Hitachi Ltd Optical character reader
US4785336A (en) * 1986-12-04 1988-11-15 Libbey-Owens-Ford Co. Device for monitoring characteristics of a film on a substrate
FR2716531B1 (fr) * 1994-02-18 1996-05-03 Saint Gobain Cinematique Contr Procédé de mesure d'épaisseur d'un matériau transparent.
RU2168151C2 (ru) * 1999-08-04 2001-05-27 Научно-исследовательский институт радиоэлектроники и лазерной техники Московского государственного технического университета им. Н.Э. Баумана Дистанционный способ измерения толщины пленок
JP2011191252A (ja) * 2010-03-16 2011-09-29 Nippon Steel Engineering Co Ltd 金属の表面品質評価方法および金属の表面品質評価装置

Also Published As

Publication number Publication date
FR2274022A1 (fr) 1976-01-02
FR2274022B3 (enrdf_load_stackoverflow) 1978-12-29
JPS5111464A (enrdf_load_stackoverflow) 1976-01-29
DK255675A (da) 1975-12-08
SE7506493L (sv) 1975-12-08
BE829978A (fr) 1975-10-01
AU8181375A (en) 1976-12-09
NL7506740A (nl) 1975-12-09
DE2524982A1 (de) 1976-01-02

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