FR51732E - Optico-physical process for the simultaneous qualitative and quantitative examination of fields of variable density - Google Patents

Optico-physical process for the simultaneous qualitative and quantitative examination of fields of variable density

Info

Publication number
FR51732E
FR51732E FR51732DA FR51732E FR 51732 E FR51732 E FR 51732E FR 51732D A FR51732D A FR 51732DA FR 51732 E FR51732 E FR 51732E
Authority
FR
France
Prior art keywords
optico
fields
physical process
variable density
quantitative examination
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
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.)
FIRME LUFTFAHRTFORSCHUNGSANSTA
Original Assignee
FIRME LUFTFAHRTFORSCHUNGSANSTA
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 FIRME LUFTFAHRTFORSCHUNGSANSTA filed Critical FIRME LUFTFAHRTFORSCHUNGSANSTA
Application granted granted Critical
Publication of FR51732E publication Critical patent/FR51732E/en
Expired 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

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  • 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)
FR51732D 1941-08-28 1941-08-28 Optico-physical process for the simultaneous qualitative and quantitative examination of fields of variable density Expired FR51732E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR51732T 1941-08-28

Publications (1)

Publication Number Publication Date
FR51732E true FR51732E (en) 1943-04-09

Family

ID=8686506

Family Applications (1)

Application Number Title Priority Date Filing Date
FR51732D Expired FR51732E (en) 1941-08-28 1941-08-28 Optico-physical process for the simultaneous qualitative and quantitative examination of fields of variable density

Country Status (1)

Country Link
FR (1) FR51732E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770166A (en) * 1951-07-06 1956-11-13 Nat Res Dev Improvements in and relating to optical apparatus for producing multiple interference patterns

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770166A (en) * 1951-07-06 1956-11-13 Nat Res Dev Improvements in and relating to optical apparatus for producing multiple interference patterns

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