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WO/1998/029770A1 |
A grating (12) is induced in the core (14) of a hydrogen-loaded high-germanium-content optical fiber (10) using near-UV (275 nm-390 nm) laser light (40). An interference pattern is generated at the core (14) using a molded polymer phase ...
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WO/1998/028154A1 |
The present invention is directed to a security document which includes a photochromic security system. The photochromic security system comprises a photochrome and a sensitizer which causes the photochrome to colorize at a wavelength of...
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WO/1998/021925A2 |
A method for forming a test object (200) containing a sinusoidal pattern corresponding to a specified exposure distribution function comprises: providing an exposed and processed intermediate photographic film (201) containing a distorte...
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WO/1998/021625A2 |
A method for producing X-ray images, comprising forming an anatomical X-ray image using film having gamma less than 2.0. Preferably, such film is viewed on a film viewer, such as a digital film viewer, in which illumination conditions ca...
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WO/1998/019217A1 |
The aim of the invention is to produce thin metal coatings and such structures on substrate supports of different structures. The lateral expansion of a metallic coating on each support can be predetermined with micrometer and submicrome...
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WO/1998/019216A1 |
An improved developer application method and apparatus for use in electronic film development, wherein the developer is applied to a photographic film using controlled, aerial deposition of one or more stream(s) of droplets of one or mor...
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WO/1998/007574A1 |
An imaging method is provided that includes a tetraarylpolymethine dye, and bleaching this dye by bringing the dye into contact with a 4-alkyl or 4-unsubstituted 1,4-dihydropyridine derivative.
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WO/1998/007572A1 |
The invention concerns a printed security document which comprises, for example, a background pattern formed from points or lines. In order to protect the document against copying, an object, for example the text 'BEWARE OF FORGERY', is ...
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WO/1998/002787A1 |
A method for printing photographic quality images downloaded to a printer comprising: providing a light-tight film pack (10) containing photosensitive imaging media (12), having a severable line (22) on a face thereof which defines a fla...
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WO/1998/000756A1 |
This invention relates to photographic light-sensitive silver halide emulsions wherein the silver grains are spectrally sensitized to near infrared radiation at wavelengths above 700 nm with a particular class of cyanine dyes and to phot...
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WO/1997/048016A1 |
A method for printing on an exposed polymerised thermoplastic or curable layer of the body of a portable data medium, and a portable data medium, particularly a chip card, comprising a polymerised layer, are disclosed. The method compris...
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WO/1997/045396A1 |
The invention relates to N-bis- or N-tris-[(1,2-dicarboxy-ethoxy)-ethyl]-amine derivatives having formula (I) where R is H, (a) or (b) and R2 is hydrogen, an alkali metal or an earth-alkali metal. The invention also relates to a method f...
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WO/1997/043690A1 |
Nitrogen containing 3-heteroaromatic substituted acrylonitrile compounds are useful as co-developers in combination with hindered phenol developers to produce high contrast black-and-white photothermographic and thermographic elements. T...
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WO/1997/042545A1 |
Photographic silver-halide materials for producing negative images with ultrahard-gradation contrast, which contain a hydrazine compound and a contrast-boosting amino compound and/or phosphonium compound, demonstrate a marked tendency to...
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WO/1997/041485A1 |
The present invention relates to a photographic film base comprising a transparent support base and a binderless layer of magnetic material coated thereon. According to another aspect, the present invention relates to a color photographi...
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WO/1997/038353A1 |
Methods and apparatus for rapidly removing stored energy from (i.e., erasing) a reusable photostimulable storage phosphor screen (39) use a sodium vapor lamp (10) which primarily emits yellow light at a wavelength of approximately 589.8 ...
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WO/1997/034195A1 |
2-Substituted malondialdehyde compounds are useful as co-developers in combination with hindered phenol developers to produce high contrast black-and-white photothermographic and thermographic elements. The photothermographic and thermog...
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WO/1997/030377A1 |
A process for regenerating spent fixer solution which includes the steps of adding finely particulate zinc, such as zinc dust, to the solution to cause silver dissolved therein to precipitate and removing the precipitate from the solutio...
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WO/1997/029405A1 |
There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of a quaternary pyridinium compound which has a fused 5- to 12-member saturated carbocyclic ring attached to...
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WO/1997/024209A1 |
A process for creating aesthetically pleasing multicolor designs and patterns in cast materials (6), particularly cementitious materials, which may be used to imitate natural stone in appearance. The process includes the steps of prepari...
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WO/1997/011409A1 |
Acrylonitrile compounds are useful as co-developers when used in combination with hindered phenol developers to produce high contrast black-and-white photothermographic and thermographic elements. Acrylonitrile compounds are also useful ...
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WO/1997/011406A2 |
Hydroxylamine, alkanolamine, and ammonium phthalamate compouds are useful as contrast enhancers when used in combination with (i) hindered phenol developers, and (ii) trityl hydrazide and/or formyl-phenyl hydrazine co-developers, to prod...
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WO/1997/010531A1 |
A method is described for producing Cinemascope-type motion picture images that have a large aspect ratio (e.g. 2.35 to 1), which enables their high quality projection using moderately priced projection lenses, which produces a steadier ...
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WO/1996/038307A1 |
Subject of the invention is a process of making films and printing forms to be used for the manufacture of special prints, mainly securities. The subject of the invention is also the films and printing forms which are produced by the pro...
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WO/1996/035142A1 |
An infrared photosensitive element comprising: a support bearing an infrared radiation-sensitive silver halide material; and an antihalation layer comprising a basic antistatic agent, an acid having a pKa less than 4.2 in an amount equal...
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WO/1996/026465A1 |
A substantially sulfur-free ammonium thiosulfate containing product can be produced by spray drying an aqueous solution containing ammonium thiosulfate and effective stabilizing amounts of both a carbonate component and a sulfite compone...
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WO/1996/025691A1 |
A thermoplastics sheet having a coloured surface is formed by providing a ribbon (20) of thermoplastics sheet material with a coating of photographic light-sensitive substance, then continuously advancing the ribbon past an exposure stat...
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WO/1996/021572A2 |
A method of forming a composite image comprises a) illuminating a lamina with light from a master image, the lamina having a first layer sensitive to one colour of light, a further layer sensitive to light of a different colour, and a tr...
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WO/1996/021885A1 |
Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula R-C=C-C=C-R', where R and R' are, e.g., both -CH2-O-CONH-(CH2)5CH3. After exposure to X-radiation ...
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WO/1996/021886A1 |
There is described a method of processing silver halide photographic material in a processing machine using a developing solution which comprises either a hydroquinone type developing agent or a reductone type developing agent, together ...
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WO/1996/020427A1 |
A printing method which comprises the steps of placing a book of blank sheets for slip forms (1), the sheets being coated with ink (6) containing a pigment C1 or a pigment precursor C2 and a reaction initiator F; placing on the book a pl...
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WO/1996/019557A2 |
Hydroxyalkylaminocarboxylic acids have the general formula (I), in which R1 is hydrogen, a C1-C4 alkyl residue or a group having the formulas -CHR3-CH(OH)-R2 or -CH2)n-COOM, in which n equals 1 to 4; R2 and R3 represent independently fro...
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WO/1996/015847A1 |
A method for modifying the transfer characteristics of a porous organic or inorganic membrane, wherein (a) at least one layer is formed on the membrane by applying at least one uniform solution prepared by mixing one or more rare earth o...
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WO/1996/013755A1 |
Tabular grain emulsions of enhanced photographic sensitivity are disclosed in which the tabular grains contain a maximum surface iodide concentration along their edges and a lower surface iodide concentration within their corners than el...
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WO/1996/013759A2 |
A radiation-sensitive photographic emulsion is disclosed containing a gelatino-vehicle and tabular grains accounting for at least 70 percent of total grain projected area comprised of at least 90 mole percent bromide and up to 12 mole pe...
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WO/1996/013757A1 |
Tabular grain emulsions of enhanced photographic sensitivity are disclosed in which the tabular grains contain a maximum surface iodide concentration along their edges and a lower surface iodide concentration within their corners than el...
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WO/1996/013756A1 |
A radiographic element for medical diagnostic imaging is disclosed comprised of a transparent support and first and second silver halide emulsion layer units coated on opposite sides of the film support, each emulsion layer unit being co...
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WO/1996/007194A1 |
In accordance with the present invention, a method of electrophotographically manufacturing a luminescent screen assembly on an interior surface of a faceplate panel (12) of a color CRT (10) comprises the steps of coating the interior su...
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WO/1996/003677A1 |
Photographic developing compositions are provided that are free of dihydroxybenzene developing agents and are used in the processing of photographic elements. The developing compositions have a pH in the range of from 10.1 to 10.9 and co...
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WO/1996/002019A1 |
The object of the invention is a process for stabilising holographic substrate materials based on gelatines. According to the invention, a bleaching bath is added to the substrate material after (i) exposure, (ii) development and (iii) i...
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WO/1996/000930A1 |
To provide a standard for determining an objective level of performance of photographic film developer processes, a production sensitometer, of the type commonly used in the field, is correlated with a high precision, master sensitometer...
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WO/1995/033692A1 |
An improved apparatus and method for recovering metallic silver from solutions containing silver ions by reducing silver ions and oxidizing an element in the electromotive series above silver, such as iron. The apparatus provides plug fl...
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WO/1995/031754A1 |
A process for exposing a silver halide-containing photothermographic element with radiation to produce a latent image comprising a) providing a source of radiation which emits a beam of radiation to produce a spot having at least one dim...
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WO/1995/030932A1 |
The phase mask (22) comprises binary wave gratings which deflect light away for the collecting aperture of the projection system and binary phase gratings which deflect incident light into a fan of rays to fill the collecting aperture. I...
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WO/1995/024672A1 |
In order to improve contrast in diazofilms, the diazo compounds in the light-sensitive layer which are to be activated by exposure for colour formation are supplemented by diazo compounds in the case of which nitrogen remaining at the ex...
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WO/1995/024673A1 |
The present invention relates to the use of multivariate statistical process control as a means of process verification in photographic processes. The method of the present invention allows the process to be controlled in a simple and ef...
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WO/1995/023710A1 |
A light control material comprising a layer of photopolymer (131) having light traps (140) formed therein at selected locations. The photopolymer (131) layer constitutes a master from which embossments can be produced. The ligh traps (14...
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WO/1995/021403A1 |
Radiographic elements and assemblies are disclosed. The radiographic element has silver halide emulsion layer units coated on opposite sides of a film support, and are constructed to minimize crossover during exposure by the intensifying...
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WO/1995/021402A1 |
A system for orthopedic imaging is disclosed which consists of a supply of low crossover sensitometrically asymmetric radiographic elements and cassettes with various front and back intensifying screens to produce optimal bone images and...
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WO/1995/017903A1 |
The design and synthesis of novel oxazolone-derived molecular modules and the use of the modules in the construction of new molecules and fabricated materials is disclosed. The new molecules and fabricated materials are molecular recogni...
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