84 results about "Photographic emulsion" patented technology

A method and system for automated production of stereoscopic and animated images and hardcopies can utilize a light-sensitive lenticular material employing a conventional or non-conventional photographic emulsion or an instant-developing material. An automated printer can produce autostereoscopic and animated hardcopies in multiple formats from digital and non-digital sources, including single images, stereopairs, and multiple-image sets of negatives, transparencies, or prints. The printer, which includes a projection device and a material plate that can rotate around two perpendicular axes, can utilize software to automate viewing angle calculation, printer control, multiple-image alignment, distortion correction, and image processing and conversion. A digital camera can capture stereoscopic and animated images and record them digitally or on photographic film. A non-digital camera can record stereoscopic and animated images directly onto light-sensitive lenticular material employing a conventional or non-conventional photographic emulsion or an instant-developing material. The printer and cameras can utilize autostereoscopic monitors to preview parallax.

The present invention provides a photosensitive silver halide photographic emulsion comprising a silver iodide content of 41 mol % or more and 100 mol % or less and including a silver halide to which reduction sensitization is applied in the course of particle formation, and silver halide photographic emulsion comprising 41 mol % to 100 mol % of silver iodide and subjected to at least one of chalcogen sensitization and gold sensitization to the insides of particles.

At least one of a nucleus forming process, a nucleus growing process, a chemical sensitizing process, and a spectral sensitizing process for producing a silver halide photographic emulsion is performed by using a microreactor. A minute region of the microreactor is used to precisely perform a reaction of nucleus formation. A condition under which host grains are allowed to react with newly supplied silver halide nuclei is made uniform to cause uniform crystal growth. A predetermined quantity of molecules for chemical sensitization is doped in a crystal lattice of a nucleus of silver halide to effect a sensitizing process. Alternatively, a spectral sensitizing process in which a single molecular layer of a spectral sensitizer is uniformly adsorbed on a silver halide nucleus grain surface is securely carried out.

A silver halide photographic emulsion comprising silver halide grains, wherein a variation coefficient of equivalent-circle diameters of all the silver halide grains is 30% or less, and 70% or more of the total projected area of the silver halide grains are occupied by silver halide grains each meeting requirements (i), (ii), and (iii) below: (i) silver bromochloroiodide grain having (111) faces as main planes, (ii) having an epitaxial portion junctioned to at least one apex portion thereof, and (iii) having at least one dislocation line in an epitaxial portion thereof.

In one embodiment, a system is provided for increasing image information storage capacity within available media involving a film camera capture. The system comprises a strip of photographic emulsion bearing media having at least two surfaces, and wherein two of the at least two surfaces are provided with emulsion. A camera is provided that has a lens, wherein the camera exposes aspects of a lens gathered image on the two surfaces of the photographic emulsion bearing media, and further wherein at least light is gathered and relayed by a lens image relaying device. A processor is further provided for processing the photographic emulsion bearing media, and an imaging device is included for providing electronic image data representing image information from the photographic emulsion bearing media.

A silver halide photographic emulsion comprises silver iodochlorobromide tabular grains each having (111) faces as main planes thereof. 70% or more of the total projected area of all the grains contained in the emulsion is occupied by grains each meeting conditions (i) to (iv): (i) a hexagonal tabular grain whose ratio of the length of an edge having the maximum length with respect to the length of an edge having the minimum length, is 2 or less; (ii) an epitaxial junction portion having a silver chloride content of 5 mol % or more and 25 mol % or less, is provided on at least one apex portion of the hexagon; (iii) a silver chloride content thereof is 0.5 mol % or more and 6 mol % or less; and (iv) a silver iodide content thereof is 0.5 mol % or more and 10 mol % or less.

A silver halide photographic emulsion comprising grains, wherein 50% or more (numerical ratio) of all the grains are occupied by tabular grains with epitaxial junction meeting the requirements (i) to (v): (i) silver iodochlorobromide grains having (111) faces as main planes and having two parallel twin planes, (ii) an equivalent circle diameter of 3.0 mum or more and an aspect ratio of 8 or more, (iii) each of host tabular grains has six silver halide epitaxial junction portions selectively in apex portions thereof, (iv) at least one of the silver halide epitaxial junction portions has at least one dislocation line, and (v) a spacing between the two parallel twin planes of 0.012 mum or less.

A modified gelatin obtained by reacting (A) a gelatin and (B) a compound which contains a nitrogenous aromatic ring having a mercapto group to form covalent bond with a reactive group in the gelatin, an introduction amount of the compound in the gelatin being 1.0x10-6 mol to 2.0x10-3 mol per 100 g of the gelatin.

The invention discloses a UV varnish, which comprises the following parts: 25-45% monomer, 50-70% photographic resin, 4-7% photo-initiation agent, 0.7-1.7% adjuvant and 40-60% solvent, wherein the monomer consists of TMPTA and DPHA; the photographic resin is aliphatic PUA, which contains UV7605B and 621A-8; the photographic resin includes Irgacure184 and the adjuvant contains EFKA3777, EFKA3034 and OB (optical brightener); the solvent contains toluene and acetic ester. The invention matches high hardness resin and high hardness active diluent with OB to realize the uniformity of high hardness and low yellow changing rate, which reduces cost with good economic benefit.

A compact reflector telescope has a spherical primary reflector and a secondary reflector with a negative lens interposed there between in axial alignment therewith. Light reflected from the primary reflector is passed through the negative lens and is diverted by the secondary reflector to a positive lens at the side of the telescope tube. The positive lens focuses the light rays onto an eye piece or ocular or onto a photographic emulsion or electronic detector. The telescope reduces or substantially eliminates spherical aberration and can be configured to have a focal ratio significantly greater than the focal ratio of the primary reflector. The telescope produces a flat field of view and an image which is substantially diffraction limited.

A silver halide photographic emulsion comprising epitaxial junction type tabular grains. The epitaxial junction type tabular grains each satisfying the following requirements (i) to (iv) occupy 100 to 50% (grain numerical ratio) of all the grains contained in the silver halide photographic emulsion: (i) host tabular grain is a tabular grain of silver iodobromide or silver iodochlorobromide having {111} faces as main planes and two parallel twin planes; (ii) at least one silver halide epitaxial portion is formed, per grain, only on a corner portion of the host tabular grain; (iii) a portion of an external surface of the silver halide epitaxial portion has a face parallel to the main plane of the host tabular grain; and (iv) a portion of an external surface of the silver halide epitaxial portion has a {100} face.

Continuous photo film includes a support of resin film having a back surface. A photosensitive layer of photographic emulsion is disposed on a surface of the support opposite to the back surface. A conveying roller conveys the continuous photo film. The conveying roller includes a roller body of metal. A hardness reinforcer layer is formed on a surface of the roller body by thermal spraying of ceramic or cermet, so that the roller body surface is prevented from being scratched or ground by the back surface of the film.

This invention relates to a silver halide photographic emulsion in which a silver emulsion high in silver iodide content of 80% by mol to 100% by mol based on the silver iodide content is chemically sensitized by at least one of methods of chalcogen sensitization and gold sensitization under the conditions that pAg is from 1.5 to 7.0, as well as a thermally developable photosensitive material having at least one image forming layer containing at least a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent and a binder on a support, and having at least one non-image recording protection layer to the image forming layer on the side remote from the support, and exposed by a laser beam in which the material contains the silver emulsion high in silver iodide content.

Provided are a silver halide photographic emulsion containing a metal complex represented by the following formula (I):

M_m[IrCl_n(L₁)_k(L₂)_6-n-k]  (I)

wherein, M represents a cation or anion, m represents an integer of 0 to 4, n represents an integer of 3 to 5, k represents an integer of 0 to 3, L₁ represents a ligand selected from the group consisting of pyrroles, thiophenes, pyrazoles, isoxazoles, isothiazoles, imidazole, oxazoles, furazanes, heterocycles having at least 3 hetero atoms and ureas, L₂ represents an inorganic ligand other than Cl with the proviso that when k represents 0, L₂ represents none of F, Br, I, NO, H₂O, CO and C₂O₄; and a metal complex represented by the following formula (IV):

N_k′[IrX_6-n′Q_n′]  (IV)

wherein, N represents a counter cation; X represents a halogen ion; Q represents a compound which contains at least three atoms selected from nitrogen and sulfur atoms, and 5 or less carbon atoms, may contain another atom, and exhibits a ratio of (the number of carbon atoms)/(the total number of nitrogen atoms+oxygen atoms+sulfur atoms) of less than 0.5; n′ represents an integer of 1 or 2 and k′ represents the number of counter cations necessary for neutralizing the charge of a complex salt.

Provided is a surfactant which has a high surface tension reducing ability and a high solubility in a liquid medium, comprising a fluorine-containing copolymer containing, as essential components, a monomer having a fluoroalkyl group having 1 to 7 carbon atoms, a hydrophilic monomer, and a monomer having an ion donor group. Further provided are a coating composition, an ink composition and a photographic emulsion composition, each comprising the surfactant.

A silver halide color photographic photosensitive material having, on a support, at least one layer of a blue sensitive emulsion layer unit containing a yellow color forming coupler, a green sensitive emulsion layer unit containing a magenta color forming coupler, and a red sensitive emulsion layer unit containing a cyan color forming coupler, wherein 70% or more of the projection area of the entire silver halide grains has at least one layer of a silver halide photographic emulsion layer containing silver halide grains satisfying the following (a) to (c), and (1) the photosensitive material contains at least one inter-image effect providing layer, or (2) the photosensitive material contains a compound represented by the following Formula (I): (a) the material comprises a tabular silver halide host grain with an aspect ratio of 5 or more having two principal surfaces parallel with each other and a protrusion portion of silver halide epitaxially joined onto the surface of the tabular silver halide host grain, (b) the silver iodide content is 70 mole % or more both in the tabular silver halide host grains and the protrusion portion, and (c) the ratio of the silver amount of the protrusion portion to the silver amount of the tabular silver halide host grain is 12% or less.

A process for producing a spectrally sensitized silver halide photographic emulsion having high sensitivity. A process for producing a silver halide photographic emulsion comprising as a sensitizing dye at least one connection dye having two or more chromophores connected through a covalent bond, the process comprising adding said connection dye to a silver halide photographic emulsion and allowing at least one chromophore out of a plurality of chromophores in the molecule of the connection dye to change in the adsorption strength to a silver halide grain; and a process for producing a silver halide photographic emulsion comprising a silver halide grain having adsorbed on the surface thereof a sensitizing dye in multiple layers, the process comprising adding one or a plural of sensitizing dye(s) to said silver halide emulsion and allowing at least one sensitizing dye out of added sensitizing dyes to change in the adsorption strength to a silver halide grain.

A light-sensitive silver halide photographic emulsion has been described comprising a binder and tabular grains rich in silver bromide, characterized in that said grains contain as a dopant RhClx(SCN)y, wherein each of x and y are integers having a value of at least 1 and less than 6 so that x+y equals 6.