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FR876173A - Method and apparatus for directly determining the gradation of photosensitive layers - Google Patents

Method and apparatus for directly determining the gradation of photosensitive layers

Info

Publication number
FR876173A
FR876173A FR876173DA FR876173A FR 876173 A FR876173 A FR 876173A FR 876173D A FR876173D A FR 876173DA FR 876173 A FR876173 A FR 876173A
Authority
FR
France
Prior art keywords
gradation
photosensitive layers
directly determining
determining
directly
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of FR876173A publication Critical patent/FR876173A/en
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
    • G01N21/86—Investigating moving sheets

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)
FR876173D 1940-10-23 1941-10-22 Method and apparatus for directly determining the gradation of photosensitive layers Expired FR876173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE876173X 1940-10-23

Publications (1)

Publication Number Publication Date
FR876173A true FR876173A (en) 1942-10-29

Family

ID=6817609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR876173D Expired FR876173A (en) 1940-10-23 1941-10-22 Method and apparatus for directly determining the gradation of photosensitive layers

Country Status (1)

Country Link
FR (1) FR876173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537721A1 (en) * 1982-12-11 1984-06-15 Dainippon Screen Mfg DEVICE FOR MEASURING THE PHOTOGRAPHIC DENSITY OF A FILM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537721A1 (en) * 1982-12-11 1984-06-15 Dainippon Screen Mfg DEVICE FOR MEASURING THE PHOTOGRAPHIC DENSITY OF A FILM

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