FR1329272A - Dispositif optique de comparaison visuelle - Google Patents

Dispositif optique de comparaison visuelle

Info

Publication number
FR1329272A
FR1329272A FR7469A FR67007469A FR1329272A FR 1329272 A FR1329272 A FR 1329272A FR 7469 A FR7469 A FR 7469A FR 67007469 A FR67007469 A FR 67007469A FR 1329272 A FR1329272 A FR 1329272A
Authority
FR
France
Prior art keywords
comparison device
visual comparison
optical visual
optical
visual
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
FR7469A
Other languages
English (en)
French (fr)
Inventor
Erwin Sick
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 filed Critical
Application granted granted Critical
Publication of FR1329272A publication Critical patent/FR1329272A/fr
Expired legal-status Critical Current

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
    • G01N21/956—Inspecting patterns on the surface of objects
    • G01N21/95607—Inspecting patterns on the surface of objects using a comparative method
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/0004—Microscopes specially adapted for specific applications
    • G02B21/0016—Technical microscopes, e.g. for inspection or measuring in industrial production processes

Landscapes

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Eye Examination Apparatus (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
FR7469A 1961-08-09 1962-07-19 Dispositif optique de comparaison visuelle Expired FR1329272A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0075240 1961-08-09

Publications (1)

Publication Number Publication Date
FR1329272A true FR1329272A (fr) 1963-06-07

Family

ID=7505228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7469A Expired FR1329272A (fr) 1961-08-09 1962-07-19 Dispositif optique de comparaison visuelle

Country Status (4)

Country Link
BE (1) BE620524A (ru)
CH (1) CH406655A (ru)
FR (1) FR1329272A (ru)
GB (1) GB971276A (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1583692A (ru) * 1968-02-16 1969-11-28
US3744917A (en) * 1971-05-14 1973-07-10 Symbionics Inc Optical comparison device using an optical diffuser

Also Published As

Publication number Publication date
DE1423598B2 (de) 1971-08-12
GB971276A (en) 1964-09-30
BE620524A (ru)
CH406655A (de) 1966-01-31
DE1423598A1 (de) 1969-01-30

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