FR1397553A - Apparatus for determining the flatness of surfaces - Google Patents

Apparatus for determining the flatness of surfaces

Info

Publication number
FR1397553A
FR1397553A FR971925A FR971925A FR1397553A FR 1397553 A FR1397553 A FR 1397553A FR 971925 A FR971925 A FR 971925A FR 971925 A FR971925 A FR 971925A FR 1397553 A FR1397553 A FR 1397553A
Authority
FR
France
Prior art keywords
flatness
determining
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.)
Expired
Application number
FR971925A
Other languages
French (fr)
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.)
SPEEDLAP SUPPLY CORP
Original Assignee
SPEEDLAP SUPPLY CORP
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 SPEEDLAP SUPPLY CORP filed Critical SPEEDLAP SUPPLY CORP
Priority to FR971925A priority Critical patent/FR1397553A/en
Application granted granted Critical
Publication of FR1397553A publication Critical patent/FR1397553A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01B11/306—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces for measuring evenness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR971925A 1964-04-22 1964-04-22 Apparatus for determining the flatness of surfaces Expired FR1397553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR971925A FR1397553A (en) 1964-04-22 1964-04-22 Apparatus for determining the flatness of surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971925A FR1397553A (en) 1964-04-22 1964-04-22 Apparatus for determining the flatness of surfaces

Publications (1)

Publication Number Publication Date
FR1397553A true FR1397553A (en) 1965-04-30

Family

ID=8828431

Family Applications (1)

Application Number Title Priority Date Filing Date
FR971925A Expired FR1397553A (en) 1964-04-22 1964-04-22 Apparatus for determining the flatness of surfaces

Country Status (1)

Country Link
FR (1) FR1397553A (en)

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