JPS5371829A - Spectrally sensitized silver halide photographic emulsion - Google Patents

Spectrally sensitized silver halide photographic emulsion

Info

Publication number
JPS5371829A
JPS5371829A JP14702976A JP14702976A JPS5371829A JP S5371829 A JPS5371829 A JP S5371829A JP 14702976 A JP14702976 A JP 14702976A JP 14702976 A JP14702976 A JP 14702976A JP S5371829 A JPS5371829 A JP S5371829A
Authority
JP
Japan
Prior art keywords
silver halide
halide photographic
photographic emulsion
spectrally sensitized
sensitized silver
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.)
Pending
Application number
JP14702976A
Other languages
Japanese (ja)
Inventor
Takeo Sakai
Haruo Takei
Nobuyuki Tsujino
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP14702976A priority Critical patent/JPS5371829A/en
Publication of JPS5371829A publication Critical patent/JPS5371829A/en
Pending 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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed

Abstract

PURPOSE:To subject to surface development an internal latent image type silver halide photographic emulsion containing a foggant, to raise the highest density of the resultant direct positive image, and to lower its lowest density, by adding specified 2 kinds of sensitizing dyes in combination.
JP14702976A 1976-12-07 1976-12-07 Spectrally sensitized silver halide photographic emulsion Pending JPS5371829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14702976A JPS5371829A (en) 1976-12-07 1976-12-07 Spectrally sensitized silver halide photographic emulsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14702976A JPS5371829A (en) 1976-12-07 1976-12-07 Spectrally sensitized silver halide photographic emulsion

Publications (1)

Publication Number Publication Date
JPS5371829A true JPS5371829A (en) 1978-06-26

Family

ID=15420917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14702976A Pending JPS5371829A (en) 1976-12-07 1976-12-07 Spectrally sensitized silver halide photographic emulsion

Country Status (1)

Country Link
JP (1) JPS5371829A (en)

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