CA1032808A - Silver halide films with wide exposure latitude and low gradient - Google Patents

Silver halide films with wide exposure latitude and low gradient

Info

Publication number
CA1032808A
CA1032808A CA 207747 CA207747A CA1032808A CA 1032808 A CA1032808 A CA 1032808A CA 207747 CA207747 CA 207747 CA 207747 A CA207747 A CA 207747A CA 1032808 A CA1032808 A CA 1032808A
Authority
CA
Grant status
Grant
Patent type
Prior art keywords
silver halide
exposure latitude
low gradient
halide films
wide exposure
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
CA 207747
Other languages
French (fr)
Inventor
Warren W. Evans
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.)
E I du Pont de Nemours and Co
Original Assignee
E I du Pont de Nemours and Co
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
Grant date

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/46Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein having more than one photosensitive layer
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03564Mixed grains or mixture of emulsions
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/15Lithographic emulsion
CA 207747 1973-08-27 1974-08-26 Silver halide films with wide exposure latitude and low gradient Expired CA1032808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3888676A US3888676A (en) 1973-08-27 1973-08-27 Silver halide films with wide exposure latitude and low gradient

Publications (1)

Publication Number Publication Date
CA1032808A true CA1032808A (en) 1978-06-13

Family

ID=23546952

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 207747 Expired CA1032808A (en) 1973-08-27 1974-08-26 Silver halide films with wide exposure latitude and low gradient

Country Status (7)

Country Link
US (1) US3888676A (en)
JP (1) JPS5051724A (en)
BE (1) BE819171A (en)
CA (1) CA1032808A (en)
DE (1) DE2440639C2 (en)
FR (1) FR2242703B1 (en)
GB (1) GB1471778A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2708466A1 (en) * 1977-02-26 1978-08-31 Agfa Gevaert Ag Emulsionsabmischungen for colorumkehr- (regulatory) material
DE2818428C3 (en) * 1977-05-02 1980-12-04 E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.)
US4209329A (en) * 1977-05-02 1980-06-24 E. I. Du Pont De Nemours And Company Low silver coating weight, high speed films having two similar emulsion layers
JPS6145219B2 (en) * 1982-02-19 1986-10-07 Konishiroku Photo Ind
US4451560A (en) * 1982-11-15 1984-05-29 Polaroid Corporation Chemical sensitization of silver halide grains
JPH0216906B2 (en) * 1983-01-28 1990-04-18 Fuji Photo Film Co Ltd
JPS6290646A (en) * 1985-10-17 1987-04-25 Fuji Photo Film Co Ltd Silver halide photographic sensitive material and image forming method using it
JPH01131542A (en) * 1987-08-21 1989-05-24 Konica Corp Negative silver halide color photographic sensitive material
DE3828312A1 (en) * 1988-08-20 1990-03-01 Agfa Gevaert Ag Preparation of silver halide
US5828793A (en) * 1996-05-06 1998-10-27 Massachusetts Institute Of Technology Method and apparatus for producing digital images having extended dynamic ranges
US7978925B1 (en) 2005-04-16 2011-07-12 Apple Inc. Smoothing and/or locking operations in video editing
US8760537B2 (en) 2010-07-05 2014-06-24 Apple Inc. Capturing and rendering high dynamic range images

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456955A (en) * 1944-06-02 1948-12-21 Eastman Kodak Co Photographic processes and lightsensitive elements therefor
BE558670A (en) * 1956-06-26
US3130053A (en) * 1956-06-26 1964-04-21 Agfa Ag Photographic material for the production of photographic records with tone value correction
US3140179A (en) * 1959-10-22 1964-07-07 Eastman Kodak Co Photographic element having increased speed and contrast
US3450536A (en) * 1961-03-24 1969-06-17 Eg & G Inc Silver halide photographic film having increased exposure-response characteristics
US3206313A (en) * 1961-05-15 1965-09-14 Eastman Kodak Co Chemically sensitized emulsions having low surface sensitivity and high internal sensitivity
DE1447568A1 (en) * 1963-04-20 1969-02-13 Agfa Ag Light-sensitive photographic material which provides the same regardless of the exposure to blue, green or red light images gradation
US3418123A (en) * 1965-10-22 1968-12-24 Du Pont Intensification process utilizing superposed silver halide layered structure
US3632342A (en) * 1969-03-03 1972-01-04 Eastman Kodak Co Photographic element containing acrylic latex polymers

Also Published As

Publication number Publication date Type
BE819171A (en) 1975-02-26 grant
BE819171A1 (en) grant
GB1471778A (en) 1977-04-27 application
JPS5051724A (en) 1975-05-08 application
DE2440639A1 (en) 1975-03-13 application
CA1032808A1 (en) grant
DE2440639C2 (en) 1982-03-11 grant
FR2242703B1 (en) 1982-06-04 grant
FR2242703A1 (en) 1975-03-28 application
US3888676A (en) 1975-06-10 grant

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