Eastman-Kodak Company

Pamela M Ferguson

Richard L Parton

Donald R Diehl

David A Stegman

Richard P Szajewski

Steven G Link

Jerzy A Budz

Anne E Bohan

James P Merrill

Paul T Hahm

Alberto M Martinez

Roupen H Maronian

Richard Paul Garnsey

Scott F O'Dell

Nona Veith Spitzner

Robert P Bourdelais

Peter T Aylward

Alphonse D Camp

Roger L Lok

Margaret Jones Helber

Kenneth Joseph Reed

Eric L Bell

Jerzy Z Mydlarz

Thomas R Dobles

Marian S Henry

Alton L Chitty

Joseph E LaBarca

Anne E Edwards

Norman R Oneal

The invention relates to a photographic element comprising nacreous pigment.

Imaging element with nacreous pigment

A radiation-sensitive emulsion comprised of silver halide grains (a) containing greater than 50 mole percent chloride, based on silver, (b) having greater than 50 percent of their surface area provided by &lcub;100&rcub; crystal faces, and (c) having a central portion accounting for up to 99 percent of total silver and containing (i) a first dopant comprising an iridium coordination complex containing at least one thiazole ligand and (ii) a second dopant comprising an iridium coordination complex containing at least one substituted thiazole ligand. The combined use of first and second iridium dopants in accordance with the invention provides enhanced toe contrast softening, and can also result in improved latent image keeping stability relative to that expected from the individual effects of such dopants.

High chloride emulsion doped with combination of metal complexes

The invention relates to a photographic element comprising a support and a silve halide emulsion layer wherein the silver halide emulsion contains at least one absorber dye and at least one sensitizing dye. The wavelength of maximum absorbance of said absorber dye and the wavelength of maximum sensitivity of the emulsion provided by the spectral sensitizing dye are substantially the same. The emulsion is chemically sensitized with a stable and water soluble AuI) complex. This provides manufacturing improvements, improved detail and sharpness, improved dodging and burning and lower cost without an unwanted increase in heat sensitivity.

Heat sensitivity improvement with combinations of gold sensitization and spectral sensitizing dye and filter device

A photographic element having a silver halide emulsion spectrally sensitized to blue light by a dye of formula (I) to have a maximum blue sensitivity at less than 485 nm. The dye allows the element to have good color reproduction while still providing good speed response despite the shorter blue sensitivity. Formula (I) is: ##STR1## wherein: X and X' each independently represent the atoms necessary to complete a thiazole, benzothiazole, naphthothiazole, oxazole, benzoxazole, naphthoxazole, selenazole, benzoselenazole, naphthoselenazole, imidazole, benzimidazole, or naphtho-imidazole, and X may be further substituted and X' substituted or unsubstituted;

Blue sensitizing dyes with heterocyclic substituents

The invention relates to a method of improved burning and dodging comprising providing a color photographic element that prior to development has CIELAB coordinates such that L* is greater than 71, exposing said paper, wherein during exposure burning and dodging is carried out.

Method for use of light colored undeveloped photographic element

The invention relates to a photographic element comprising at least one absorber dye and at least one sensitizing dye wherein the peak sensitivity of said absorber dye and said sensitizing dye are similar. This provides improved perceptual red detail in regions of high red density in the negative image.

Photographic image improvement in spectral sensitizing dye and filter

A silver halide photographic material having improved heat sensitivity comprises a red sensitive silver halide emulsion layer the silver halide of which is prepared in the presence of a hexacoordination complex of rhenium, ruthenium or osmium with at least four cyanide ligands and comprising at least about 90 mole percent silver chloride, wherein the emulsion contains at least one red sensitizing dye.

Photographic material having a red sensitized silver halide emulsion

A silver halide photographic material having improved heat sensitivity comprises a red sensitive silver halide emulsion layer the silver halide of which is prepared in the presence of a hexacoordination complex of rhenium, ruthenium or osmium with at least four cyanide ligands and comprising at least about 90 mole percent silver chloride, wherein the emulsion contains a thiosulfonate and a sulfinate or seleninate and at least one red sensitizing dye.

An improved image display material comprising a light sensitive tabular grain silver chloride emulsion spectrally sensitized to a peak wavelength of less than about 475 nm, and a method of use comprising the step of optically printing a color image onto the improved color photographic display material is provided. The material and method enable reduced printing times, improved color reproduction and lowered image granularity.

Method of providing viewable images

A photographic materials with a high silver chloride red sensitive layer which has a high sensitivity and exhibits reduced thermal sensitivity. In particular the material has a silver halide emulsion of at least 90% silver chloride and compounds of formula I and II below: ##STR1## Where A, Z, X1, X2, R1, R2, W1-W12, D, G1, G2, Y1, Y2 are as defined in the specification.

Red sensitizers for high silver chloride emulsions

A photographic element containing a dye of the structure (I) as a filter dye: ##STR1## wherein: G is oxygen, substituted nitrogen, or C(CN).sub.2 ;

Photographic elements containing acyl substituted oxonol dyes

Photographic image display material

Spectral sensitizing dyes, and silver halide photographic elements incorporating them, which dyes have the formula: ##STR1## wherein: X1 and X2 each independently represent the atoms necessary to complete a 5- or 6-membered heterocyclic nucleus (preferably benzo-condensed), and X1 may be further substituted and X2 substituted or unsubstituted;

Growing community of inventors

Farmington, NY, United States of America

Pamela M Ferguson