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CH367706A - Process for the photographic production of direct duplicates - Google Patents

Process for the photographic production of direct duplicates

Info

Publication number
CH367706A
CH367706A CH5698458A CH5698458A CH367706A CH 367706 A CH367706 A CH 367706A CH 5698458 A CH5698458 A CH 5698458A CH 5698458 A CH5698458 A CH 5698458A CH 367706 A CH367706 A CH 367706A
Authority
CH
Switzerland
Prior art keywords
duplicates
direct
photographic production
photographic
production
Prior art date
Application number
CH5698458A
Other languages
German (de)
Inventor
Wartburg Rene Dr Von
Original Assignee
Eggert John Prof Dr
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
Priority to BE576568D priority Critical patent/BE576568A/xx
Application filed by Eggert John Prof Dr filed Critical Eggert John Prof Dr
Priority to CH5698558A priority patent/CH366744A/en
Priority to CH5698458A priority patent/CH367706A/en
Priority to DEE17219A priority patent/DE1172953B/en
Priority to US797056A priority patent/US3156564A/en
Priority to FR789057A priority patent/FR1221305A/en
Priority to GB8418/59A priority patent/GB882690A/en
Publication of CH367706A publication Critical patent/CH367706A/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00—Screening processes; Screens therefor
    • G03F5/24—Screening processes; Screens therefor by multiple exposure, e.g. combined processes for line photo and screen
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/141—Direct positive material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CH5698458A 1958-03-11 1958-03-11 Process for the photographic production of direct duplicates CH367706A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE576568D BE576568A (en) 1958-03-11
CH5698558A CH366744A (en) 1958-03-11 1958-03-11 Process for the photographic production of screened direct duplicates from halftone originals
CH5698458A CH367706A (en) 1958-03-11 1958-03-11 Process for the photographic production of direct duplicates
DEE17219A DE1172953B (en) 1958-03-11 1959-02-26 Reproduction process for the photographic production of screened or unscreened direct duplicates or compensating copies with the help of the intensity reversal effect
US797056A US3156564A (en) 1958-03-11 1959-03-04 Production of photographic images making use of the intensity-reversal effect
FR789057A FR1221305A (en) 1958-03-11 1959-03-11 Process for preparing photographic images
GB8418/59A GB882690A (en) 1958-03-11 1959-03-11 The production of photographic images making use of the intensity-reversal effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5698458A CH367706A (en) 1958-03-11 1958-03-11 Process for the photographic production of direct duplicates

Publications (1)

Publication Number Publication Date
CH367706A true CH367706A (en) 1963-02-28

Family

ID=4520844

Family Applications (1)

Application Number Title Priority Date Filing Date
CH5698458A CH367706A (en) 1958-03-11 1958-03-11 Process for the photographic production of direct duplicates

Country Status (6)

Country Link
US (1) US3156564A (en)
BE (1) BE576568A (en)
CH (1) CH367706A (en)
DE (1) DE1172953B (en)
FR (1) FR1221305A (en)
GB (1) GB882690A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519426A (en) * 1966-12-27 1970-07-07 Eastman Kodak Co Preparation of silver halide emulsions having high covering power
BE758242A (en) * 1969-11-06 1971-04-30 Agfa Gevaert Nv PHOTOGRAPHIC FINE GRAINY SILVER HALOGENIDE EMULSIONS
GB1565502A (en) * 1975-09-10 1980-04-23 Minnesota Mining & Mfg Photographic materials
US4232116A (en) * 1979-01-31 1980-11-04 Minnesota Mining And Manufacturing Company Light-handleable photographic materials
JPS60122935A (en) * 1983-12-07 1985-07-01 Konishiroku Photo Ind Co Ltd Preparation of silver halide emulsion
JPS60222842A (en) * 1984-04-19 1985-11-07 Fuji Photo Film Co Ltd Silver halide photographic emulsion and its preparation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2401051A (en) * 1939-09-26 1946-05-28 Photo Positive Corp Photographic emulsions and methods
US2444867A (en) * 1945-07-26 1948-07-06 Eastman Kodak Co Photographic masking using the clayden effect
US2444605A (en) * 1945-12-15 1948-07-06 Gen Aniline & Film Corp Stabilizers for photographic emulsions
US2708626A (en) * 1952-06-04 1955-05-17 Eastman Kodak Co Photographic processes using prescreened material
GB699659A (en) * 1952-06-04 1953-11-11 Kodak Ltd Photographic material for making half-tone records
US2912328A (en) * 1954-04-09 1959-11-10 Eastman Kodak Co Direct positive prescreened photographic material
US2912326A (en) * 1954-04-09 1959-11-10 Eastman Kodak Co Direct positive prescreened photographic material
BE543288A (en) * 1954-12-10
US3000739A (en) * 1957-04-02 1961-09-19 Du Pont Process for preparing silver halide emulsions

Also Published As

Publication number Publication date
GB882690A (en) 1961-11-15
BE576568A (en)
FR1221305A (en) 1960-06-01
US3156564A (en) 1964-11-10
DE1172953B (en) 1964-06-25

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