FR884275A - Method for varying the gradation in printing images in several colors - Google Patents

Method for varying the gradation in printing images in several colors

Info

Publication number
FR884275A
FR884275A FR884275DA FR884275A FR 884275 A FR884275 A FR 884275A FR 884275D A FR884275D A FR 884275DA FR 884275 A FR884275 A FR 884275A
Authority
FR
France
Prior art keywords
gradation
varying
printing images
several colors
colors
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR884275A publication Critical patent/FR884275A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/18—Processes for the correction of the colour image in subtractive colour photography
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR884275D 1941-07-18 1942-07-17 Method for varying the gradation in printing images in several colors Expired FR884275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE232385X 1941-07-18

Publications (1)

Publication Number Publication Date
FR884275A true FR884275A (en) 1943-08-09

Family

ID=5880648

Family Applications (1)

Application Number Title Priority Date Filing Date
FR884275D Expired FR884275A (en) 1941-07-18 1942-07-17 Method for varying the gradation in printing images in several colors

Country Status (3)

Country Link
BE (1) BE446495A (en)
CH (1) CH232385A (en)
FR (1) FR884275A (en)

Also Published As

Publication number Publication date
CH232385A (en) 1944-05-31
BE446495A (en)

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