DE239121C - - Google Patents

Info

Publication number
DE239121C
DE239121C DENDAT239121D DE239121DA DE239121C DE 239121 C DE239121 C DE 239121C DE NDAT239121 D DENDAT239121 D DE NDAT239121D DE 239121D A DE239121D A DE 239121DA DE 239121 C DE239121 C DE 239121C
Authority
DE
Germany
Prior art keywords
thread
mirror
created
determining
composition
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.)
Active
Application number
DENDAT239121D
Other languages
German (de)
English (en)
Publication of DE239121C publication Critical patent/DE239121C/de
Active legal-status Critical Current

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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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/45—Refractivity; Phase-affecting properties, e.g. optical path length using interferometric methods; using Schlieren methods

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)
  • Instruments For Measurement Of Length By Optical Means (AREA)
DENDAT239121D Active DE239121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE239121C true DE239121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=498592

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT239121D Active DE239121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE239121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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