Abstract: Hollow silver halide grains and a process for their preparation are described. The hollow grains have high surface area/volume ratio and enhanced light absorption.

Abstract: A photographic recording material capable of accelerated development is described. The recording material comprises an image-forming coupler compound, a development inhibitor releasing compound and a compound capable of imagewise release of an electron transfer agent.

Abstract: A photographic recording material and emulsion are described which are capable of providing high contrast images. The recording material and emulsion comprises negative working silver halide and contrast enhancing arylhydrazide nucleating agents. A process for utilization of the elements and emulsions is also described.

Abstract: Pyrazolone magenta dye-forming couplers are described which provide excellent formaldehyde stability and which result in dyes having good stability to light, heat and moisture and which have higher .beta.max values as compared with dyes obtained from prior described pyrazolone couplers.

Abstract: The present invention describes photographic materials containing stable phenolic cyan dye-forming coupler formulations which include a coupler having a p-cyanophenylureido group in the 2 position and an acylamino ballast having a sulfone group in the 5-position of the phenolic ring.

Abstract: Photographic recording material is described which employs a combination of a mercury compound and a benzothiazolium compound to reduce chemical fog without adverse loss of photographic speed.

Abstract: A photographic element is described which contains a pyrazolone color coupler compound which provides a dye having improved fastness to light and improved resistance to yellowing when compared with prior known coupler compounds.

Abstract: A photographic recording material is described which comprises a leuco dye which is capable of generating a blue tone in a developed silver image.

Abstract: This invention is directed to a light sensitive silver halide emulsion comprising a cyclic ether compound having an acid function and to an element containing such emulsion and to a process for using same. The compound comprises, in the cyclic ring, at least two atoms from the group consisting of sulfur and selenium, each of which atoms being separated from one another by a chain of at least two carbon atoms. Such compound acts as a solvent and as a growth modifying agent for silver halide grains. Also described is a process for modifying the growth of silver halide grains.

Abstract: A photographic recording material is disclosed which is capable of providing improved granularity properties without sacrifice in other desirable photographic properties. The recording material comprises an image dye-forming coupler compound, a development inhibitor releasing compound, a compound capable of imagewise release of a soluble mercaptan compound and a compound capable of imagewise release of an electron transfer agent.

Abstract: Novel phenolic cyan dye-forming couplers are disclosed. The coupler compounds contain a p-cyanophenylureido group in the 2- position and an acylamino group in the 5- position of the phenolic ring. The acylamino group contains bulky substituents to provide steric interaction within the coupler molecule as well as within the dye molecule derived therefrom. The coupler compounds are useful in photographic recording materials.

Abstract: A photographic silver halide emulsion comprising a 1,1,3,3-tetrasubstituted middle chalcogen urea compound is described wherein at least one substituent comprises a nucleophilic center. The urea compound is an effective chemical sensitizing agent. A process for chemically sensitizing silver halide is also described.

Abstract: This invention relates to a color photographic silver halide recording material containing a dye image-forming coupler compound and a compound which is capable of altering the spectral absorption properties of a dye formed by reaction of the coupler compound with oxidized developing agent.

Abstract: A method is described for electronically processing exposed photographic materials for detection and measurement of latent images contained therein.

Abstract: Novel phenolic cyan dye-forming couplers contain a p-cyanophenylureido group in the 2-position and in the 5-position an acylamino substituent containing a sulfone group having bulky substituents sufficient to provide steric interaction within the coupler molecule and the dye molecule derived therefrom. The couplers are useful in photographic emulsions.

Abstract: An imaging element is described which comprises a dye image-forming coupler compound and a compound capable of releasing a fluorescent dye as a function of silver halide development. The released dye is capable of fluorescence which optically compensates for unwanted absorption of an image dye thereby resulting in color correction of the image.

Abstract: Novel phenolic cyan dye-forming couplers contain a p-cyanophenylureido group in the 2-position and in the 5-position an acylamino group containing bulky alicyclic or heterocyclic substituents sufficient to provide steric interaction within the coupler molecule and the dye molecule derived therefrom. The couplers are useful in photographic emulsions.

Abstract: This invention is directed to a photographic element containing a radiation-sensitive silver halide emulsion layer and a cyclic thioether compound comprised of at least one oxygen atom and at least three sulfur atoms, each of said atoms being separated from one another by a divalent alkylene group.

Abstract: An imaging element is described which comprises a colorless coupler compound which contains an oxidizable lueco dye moiety and optionally a colorless dye image-forming coupler compound. Following color development a masking dye is obtained by oxidation of the leuco dye moiety in areas where no photographic development occurs.

Abstract: Color correction of negative images resulting from diffusion transfer photographic recording materials is obtained through use of two dye image-providing compounds, each of which is capable of releasing a diffusible dye. One of the dye image-providing compounds releases a diffusible dye as a result of silver halide development whereas the other compound releases dye in areas where no development occurs.