摘要:
A process is disclosed of preparing a radiation sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination or tetracoordination complex having at least one organic ligand and at least half of the metal coordination sites occupied by halide or pseudohalide ligands. The metal forming the complex is chosen from periods 4, 5 and 6 and groups 3 to 14 inclusive of the periodic table of elements. The incorporation of the transition metal ion dopant and at least one organic ligand into the cubic crystal lattice of the silver halide grains can be used to improve photographic performance.
摘要:
Unique imagewise exposed and developed originating color silver halide photographic elements can be processed with bleaching and/or fixing solutions. The element is characterized by several important features. It contains a silver halide grain population of at least 50 mole percent chloride, based on total silver forming the grain population projected area, wherein at least 50 percent of total grain projected area is accounted for by intrinsically stable tabular grains (1) bounded by {100} major faces having adjacent edge ratios of less than 10, and (2) an aspect ratio of at least 2. Also, at least 50 mole % of the element silver halide is silver chloride, and no more than 2 mole % silver iodide. It also contains a bleach accelerator releasing compound. The element is also free of a desilvering rate retarding amount of a development inhibitor releasing compound having a free sulfur valence which binds to silver.
摘要:
An improved preparation of high chloride {100} tabular grain emulsions that relies on iodide ions to produce tabular grain growth is disclosed. By delaying iodide ion introduction until after the initiation of grain nucleation the proportion of total grain projected area accounted for by high chloride {100} tabular grains is increased. The projected areas of the {100} tabular grains can exceed 95 percent of total grain projected area.
摘要:
A radiation sensitive emulsion is disclosed containing a high chloride {100} tabular grain population in which the tabular grains contain bands of higher iodide.
摘要:
A process is disclosed of preparing an emulsion for photographic use comprised of silver halide grains and a gelatino-peptizer dispersing medium in which morphologically unstable tabular grains having {111} major faces account for greater than 50 percent of total grain projected area and contain at least 50 mole percent chloride, based on silver. The emulsion additionally contains at least one 2-hydroaminoazine adsorbed to and morphologically stabilizing the tabular grains. Protonation releases 2-hydroaminoazine from the tabular grain surfaces into the dispersing medium. Released 2-hydroaminoazine is replaced on the tabular grain surfaces by adsorption of a photographically useful benzimidazolium dye, thereby concurrently morphologically stabilizing the tabular grains and enhancing their photographic utility, and the released 2-hydroaminoazine is removed from the dispersing medium.
摘要:
A process is disclosed of preparing an emulsion for photographic use comprising forming in the presence of an xanthinoid grain growth modifier an emulsion comprised of silver halide grains and a gelatino-peptizer dispersing medium in which morphologically unstable tabular grains having {111} major faces account for greater than 50 percent of total grain projected area and contain at least 50 mole percent chloride, based on silver. After the emulsion is formed, the pH of the emulsion is lowered to inactivate xanthinoid grain growth modifier, and the inactivated xanthinoid is replaced on the tabular grain surfaces by adsorption of a photographically useful compound chosen to contain at least one divalent sulfur atom, thereby concurrently morphologically stabilizing the tabular grains and enhancing their photographic utility.
摘要:
A novel process for the preparation, for example of gelatino silver chloride and silver bromochloride grains with modified tabular crystal habit is described. These grains are prepared using standard single jet (SJ) or balanced double jet (BDJ) techniques, said preparation occurring in the presence of a modifying amount of an aminoazapyridine as defined and a suitable binder to form well-developed, sensitive tabular elements with a median grain volume in the range of 0.005 to 0.50 .mu.m.sup.3.
摘要:
In a telemanipulation system for manipulating objects located in a workspace at a remote worksite by an operator from an operator's station, such as in a remote surgical system, the remote worksite having a manipulator with an end effector for manipulating an object at the workspace, such as a body cavity, a controller including a hand control at the control operator's station for remote control of the manipulator, an image capture device, such as a camera, and image output device for reproducing a viewable real-time image, the improvement wherein a position sensor associated with the image capture device senses position relative to the end effector and a processor transforms the viewable real-time image into a perspective image with correlated manipulation of the end effector by the hand controller such that the operator can manipulate the end effector and the manipulator as if viewing the workspace in true presence. Image transformation according to the invention includes translation, rotation and perspective correction.
摘要:
A silver halide emulsion formed of high silver chloride particles, the high silver chloride particles having a continuous outermost layer containing at least 30 mol % of silver bromide, the high silver chloride particles having a silver chloride content of at least 95 mol % and a silver iodide content of 0.05 mol % to 0.75 mol %, wherein the outermost layer has a center portion, the center portion being limited to a region within 10% to 90% of the volume of the outermost layer, the center portion having present therein a compound of a metal from column VIII of the periodic table.
摘要:
A silver halide emulsion containing silver halide grains comprising silver chlorobromide grains or silver chloroiodobromide grains, wherein each of silver halide grains has a silver chloride content of not less than 98% and comprises a silver bromide-containing layer having a silver bromide content of 0.5 to 5%, and the silver bromide-containing layer is located at a depth of 0 to 0.01 nullm from the surface of the grain. A silver halide emulsion comprising silver halide grains containing Compound A having adsorptivity to silver, wherein each of the silver halide grains has a silver chloride content of not less than 90% has a core-shell structure comprised of a core and shell having different contents of Compound A each other, and the content of Compound A in the shell is smaller than the content of Compound A in the core.