CA994151A - Photographic material for the production of equidensities - Google Patents

Photographic material for the production of equidensities

Info

Publication number
CA994151A
CA994151A CA156,796A CA156796A CA994151A CA 994151 A CA994151 A CA 994151A CA 156796 A CA156796 A CA 156796A CA 994151 A CA994151 A CA 994151A
Authority
CA
Canada
Prior art keywords
equidensities
production
photographic material
photographic
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
CA156,796A
Other languages
English (en)
Other versions
CA156796S (en
Inventor
Erik Moisar
Harald Von Rintelen
Erwin Ranz
Otto Lapp
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert 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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Application granted granted Critical
Publication of CA994151A publication Critical patent/CA994151A/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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48515—Direct positive emulsions prefogged
    • 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
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • 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
    • G03C1/46—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein having more than one photosensitive layer
    • 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
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03564—Mixed grains or mixture of emulsions
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CA156,796A 1971-11-20 1972-11-17 Photographic material for the production of equidensities Expired CA994151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2157636A DE2157636C2 (de) 1971-11-20 1971-11-20 Photographisches Aufzeichnungsmaterial zur Herstellung von Äquidensiten

Publications (1)

Publication Number Publication Date
CA994151A true CA994151A (en) 1976-08-03

Family

ID=5825661

Family Applications (1)

Application Number Title Priority Date Filing Date
CA156,796A Expired CA994151A (en) 1971-11-20 1972-11-17 Photographic material for the production of equidensities

Country Status (9)

Country Link
US (1) US3941595A (it)
JP (1) JPS4876522A (it)
BE (1) BE791423A (it)
CA (1) CA994151A (it)
CH (1) CH572228A5 (it)
DE (1) DE2157636C2 (it)
FR (1) FR2160679B1 (it)
GB (1) GB1363818A (it)
IT (1) IT973604B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175967A (en) * 1977-11-01 1979-11-27 Donald Krause Multipart photosensitive element with independent contrast control of constituent part records
US4201841A (en) * 1978-07-14 1980-05-06 Eastman Kodak Company Process for preparing photographic elements exhibiting differential micro- and macro-area recording characteristics
JPH01302343A (ja) * 1988-05-31 1989-12-06 Fuji Photo Film Co Ltd ハロゲン化銀感光材料
US5512103A (en) * 1994-02-18 1996-04-30 Eastman Kodak Company Silver halide color photography element with improved high density contrast and bright low density colors
US5418118A (en) * 1994-02-18 1995-05-23 Eastman Kodak Company Silver halide color photographic element with improved high density contrast and bright low density colors

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE609927A (it) * 1959-01-12
US2996382A (en) * 1959-01-12 1961-08-15 Eastman Kodak Co Photographic elements having improved sensitivity
BE639874A (it) * 1962-11-15
US3615443A (en) * 1967-05-03 1971-10-26 Eastman Kodak Co Presensitized planographic printing plate
US3637388A (en) * 1967-12-18 1972-01-25 Agfa Gevaert Ag Process for the photographic production of equidensities
DE1597509C3 (de) * 1967-12-18 1975-12-04 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur photographischen Herstellung von Aquidensiten
US3607278A (en) * 1968-04-18 1971-09-21 Eastman Kodak Co Photographic elements containing fogged and unfogged silver halide grains and a slow silver halide emulsion layer

Also Published As

Publication number Publication date
FR2160679B1 (it) 1980-04-18
US3941595A (en) 1976-03-02
DE2157636C2 (de) 1984-04-12
CH572228A5 (it) 1976-01-30
GB1363818A (en) 1974-08-21
IT973604B (it) 1974-06-10
BE791423A (nl) 1973-05-16
DE2157636A1 (de) 1973-05-24
FR2160679A1 (it) 1973-06-29
JPS4876522A (it) 1973-10-15

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