Abstract: An apparatus and method of producing a parallax stereogram, i.e., free vision stereogram, and particularly for the accurate registration of a plurality of film images in order to ensure stereographic reproduction. The images on a film strip are optically viewed to establish homologous points for each film frame image. In one embodiment two images are optically superimposed to establish a stereo base distance. Each film frame is marked in accordance with the homologous points or stereo base distance. The marking may be mechanical or optically generated. Each film frame is thereafter aligned or sensed while in an enlarger, the marks establishing the accurate registration of eaach frame. Each film frame is exposed onto a photosensitive material using a movable line grid. A lenticular screen is superimposed over the developed picture to form the stereoscopic photograph.

Abstract: In high sensitivity color photographic recording materials the undesired color fog density is reduced by highly reactive DIR-compounds having an effective reaction velocity constant k.sub.eff of more than 20,000 [1 . mole.sup.-1 . sec.sup.-1 ] (measured at pH 10.2 by the method described hereinafter) in a concentration of from 10.sup.-5 to 10.sup.-3 mole per mole of silver halide, if contained in a light-sensitive silver halide emulsion layer or in a concentration of from 10.sup.-7 to 10.sup.-5 mole per gram of solids if contained in a silver-halide-free binder layer adjacent to a silver halide emulsion layer.

Abstract: Fine crystals characterized by improved morphological homogeneity and a narrow size distribution are prepared by introducing a solution of a crystallizable solute in a solvent into a bed of small inert continuously moving solid particles and initiating crystallization within the solution while it is in contact with the moving particles. The process finds application in the manufacture of diverse crystalline products such as, for example, in the formation of metal oxalates, phosphorescent compounds, and silver halide crystals, as well as in the purification of both organic and inorganic materials.

Abstract: A system of making custom transfers using as the image transfer implement clear or transparent polyvinyl chloride film in sheeting form that is pretreated in practicing the invention to have on its side that is to bear the image to be transferred a polyvinyl alcohol overcoated adhesion and release coating that forms an incipient image receiving transfer medium, in which system the image that is selected to be transferred is photographed to provide the image of same in the usual photographic negative format, and a section, of appropriate size, of the transfer implement serving film is severed from the stock of such film to provide a transfer sheet that is further processed for completing and sensitizing the sheet transfer medium for photographic application to same, and in enlarge form, the image to be transferred.

Abstract: A color image forming process which comprises processing a photographic light-sensitive element comprising a support having thereon a layer containing imagewise distributed silver therein with an aqueous alkaline solution containing a stannous ion and in the presence of a dye and a bispyridinium compound represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents a lower aliphatic hydrocarbon group or R.sub.1 and R.sub.2 are bonded each other to form a ring; n represents 0 or 1; and X.sup.- represents an anion; to bleach the dye in an imagewise manner. By the process of the present invention, color images which are stable to light, heat and moisture are formed using light-sensitive elements containing a reduced amount of silver salt and without using chemicals causing environmental pollution problems for the processing.

Abstract: A heat-developable photosensitive material comprising a support having coated thereon at least on sensitive layer comprising (a) a binder and at least one of (b) an organic silver salt, (c) a photocatalyst, and (d) a reducing agent wherein said heat-developable photosensitive material additionally contains (e) a polyisocyanate and a process for preparing same are disclosed.

Abstract: A color photographic material is provided in which the interimage effect is adjusted to provide optimum color reproduction. The photographic material comprises an emulsion referred to as type I emulsion, which releases an inhibitor on development and another emulsion with underripened grains which are more soluble than those of the type I emulsion.

Abstract: A heat-developable photosensitive material for producing an electrostatic printing master having improved electrostatic characteristics comprises a support, an organic silver salt, a reducing agent, and a binder.

Abstract: A multilayer color photographic material with improved color reproduction comprising a support having thereon at least two photosensitive silver halide emulsion layers which provide color images having different colors from each other, the multilayer color photographic material containing at least one interlayer color correction coupler as defined hereinafter.

Abstract: A silver halide photographic light-sensitive material containing a colorless photographic cyan color-forming coupler having, in a position for coupling with an oxidation product of an aromatic primary amine developing agent, an eliminatable group represented by the following formula (I):--O--(R.sub.1 O).sub.x (R.sub.2 O).sub.y R.sub.3 (I)wherein R.sub.1 and R.sub.2 each represents a substituted or unsubstituted alkylene group which may be branched provided that R.sub.1 is not substituted with an aryl group at the carbon atom adjacent to the oxygen atom bonded to the coupling position, R.sub.3 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a cycloalkyl group, an aryl group, or a cyan coupler residue, x represents a positive integer, and y represents 0 or a positive integer.

Abstract: A thermally developable light sensitive material which comprises: (a) an organic silver salt; (b) a photocatalyst and (c) a reducing agent in a support or in one or more layers provided on the support additionally comprises (d) at least one cerium compound selected from trivalent and/or tetravalent cerium compounds in the support and/or in one or more of the above layers. An improvement in various characteristics such as a long green shelf life, a high degree of whiteness, low thermal fog, high sensitivity and so on is obtained.

Abstract: In a reversal color development process including a black and white development and a color development, the sharpness, granularity and multilayer effect of the color photographic images formed are remarkably improved by subjecting silver halide reversal color photographic materials to black and white development in the presence of a DIR compound, i.e., a non-coupler type compound capable of releasing a development inhibitor upon development, processing the color photographic materials in an aqueous solution of a fogging agent, and then subjecting the color photographic materials to color development.

Abstract: Photographic couplers which release a photographically useful group by an intramolecular nucleophilic displacement reaction can be used in photographic emulsions, elements and processes to provide a photographically useful group in a controlled manner.

Abstract: A method of stabilizing organic substrate materials against the action of light is disclosed wherein at least one compound represented by the following general formula (I) is made to coexist with the organic substrate material ##STR1## wherein M represents a Cu, Co, Ni, Pd or Pt atom, R.sup.1 represents an alkyl or an aryl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group or an aryl group. Alternatively, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4 or R.sup.4 and R.sup.5 may combine together to form a 6-membered ring. A photographic material containing the above compound is also disclosed.

Abstract: A color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing 2,5-bis(1',1'-dimethylbutyl)hydroquinone or a precursor thereof and a 3-anilino-5-pyrazolone type magenta coupler represented by the following general formula (II): ##STR1## wherein IR represents RCONH--, RNHCO--, ROCO--, RNHSO.sub.2 --, ROSO.sub.2 NH-- ##STR2## wherein R represents a hydrogen atom, an alkyl group having 1 to 35 carbon atoms, an alkenyl group or an aralkyl group, which groups can be further substituted.The color photographic light-sensitive material can provide color images having excellent fastness and free from discoloration at the non-image areas.

Abstract: An inorganic system of color photography in which colored images are recorded with compositions comprising a mixture of an iridescent pigment of the type displaying an interference-reinforced reflection color, and finely divided particles of a photosensitive material, such as a silver halide, which can be developed to give black or other light absorbing particles which will absorb light wavelengths complementary to the interference-reinforced reflection color of the iridescent pigment. The system does not require organic dyes in the final image, which is highly light-stable, and uses much smaller amounts of silver than conventional black and white photography.

Abstract: A method of preparing light-sensitive silver halide grains by the simultaneous addition of two or more aqueous solutions of inorganic salts in the presence of a protective colloid, in which the production of silver halide nuclei is brought to completion during the initial stages of grain formation and the concentrations of the aqueous solutions of inorganic salts reacting with one another are increased to such an extent that fresh nuclei of crystal grains are hardly produced during the period of grain growth. The process provides grains having a desired size, for which there exists a narrow size distribution, in a relatively short period of time and which avoids any abrupt increase in the flow rates of aqueous solutions of inorganic salts added to a reaction vessel during the final stage of grain growth.

Abstract: The stability of organic substrate materials having an absorption peak between 300 and 800 nm in wavelength can be improved by the presence of a compound having the following general structural formula (I): ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen or halogen atom, a cyano, an alkyl, an aryl, a cycloalkyl, or a heterocyclic group which may be substituted or unsubstituted and which is attached to the carbon atom in the benzene ring directly or through a divalent connecting group; alternatively, each of R.sub.1 and R.sub.2, R.sub.2 and R.sub.3, or R.sub.3 and R.sub.4 may combine to form the non-metallic atoms necessary to complete a 6-membered ring; and R.sub.5 represents a hydrogen atom or methyl.

Abstract: Organic substrates, especially photographic dyes, are stabilized against light by using a Cu, Co, Ni, Pd or Pt complex of formula (I). ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sub.1 and R.sub.6 may be the same or different and represent a hydrogen atom or an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group or an arylsulfonyl group; and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 which may be the same or different represent a hydrogen atom, a halogen atom, a cyano group, or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group bonded to a carbon atom on a benzene ring directly or through a divalent linking group, or R.sub.2 and R.sub.3, R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 respectively may combine and represent the non-metallic atomic groupings required to form a 6-membered ring.

Abstract: A method for obtaining multiple copies from apparatus including an electrophotographic member of the type in which the latent image is represented by charge not removed when toner is applied and thereafter transferred. The electrophotographic member with its latent image is repeatedly subjected to toning and transfer to respective multiple receptors without intervening charge and exposure. This may be done until the desired number of copies is made or until the image quality deteriorates by reason of dark decay. If additional copies are desired the electrophotographic member is again charged and exposed and thereafter toned and the image transferred repeatedly without intervening additional charge and exposure.Apparatus for effecting the method above and providing structure for carrying out the described steps include other functions such as automatically sensing quality and responding to a condition which requires a new cycle of charge and expose.