Abstract: There is presented an optical screen suitable for taking a picture by placing it between the object and a photosensitive material. The optical screen has a specific means for controlling the difference in transmission density in an optically heterogeneous pattern and/or the specific area of the lower transmission density portions, typically an electrochromic display device. By use of such a single optical screen having a variable optically heterogeneous pattern, cumbersome operations for displacing one screen for another in the prior art can be obviated.
Abstract: An automatic processing machine for photography which performs developing processing of a photographic light-sensitive material automatically while replenishing a replenisher solution from a replenisher tank to a processing solution tank. A pipe having orifices therein is arranged approximately centrally in the replenisher tank. A vessel loading mouth capable of holding a processing agent kit vessel obliquely to the surface of the processing solution is provided at an upper opening portion of said replenisher tank.
Abstract: A method and an apparatus for copying images printed on both sides of a document onto both sides of copy sheets uses an automatic document conveying device capable of reversing the side of a document to be copied. Also disclosed is a the resuming method of a copying operation after removing a jammed sheet during the reverse side copying step of the both-sided document and the delivering method of the both-sided document when the copying operation is cancelled.
Abstract: An automatic processing machine for photography which performs developing processing of a photographic light-sensitive material automatically while replenishing a processing solution tank with a replenisher solution from a replenisher tank, wherein said replenisher tank comprises a means for circulating and stirring having a jetting section for jetting a processing solution in said replenisher tank to the vicinity of the solution surface in said replenisher tank.The automatic processing machine according to the present invention is capable of mixing and dissolving rapidly even a processing solution containing a poorly soluble alcohol to prepare a processing solution, without any need of a special and separate dissolving tank.
Abstract: An image recording system capable of recording a composite image composed of a plurality of partial recording image areas comprises an electrically chargeable image carrier. Image recording area coordinate data is fed into the system to define an area to be recorded and/or image eliminating area coordinate data is fed into the system to define an area to be eliminated. Thereafter, a charge in the charged area of the image carrier is eliminated according to the recording area coordinate area. The same process is carried out for a plurality of desired areas of image data to produce a composite image.
Abstract: A recording apparatus includes an electrostatic image support and a fixing device. The toner image formed on the electrostatic image support is transferred onto a copy paper, and the copy paper is separated from the surface of the electrostatic image support and then fed to the fixing device to fuse the toner image, for example by heat. A device is provided for distinguishing the relation in the length between the distance (A) from the separating position at which the copy paper is separated from the electrostatic image support to the fixing position of the fixing device, and the length (B) of the copy paper in the transport direction. A control device controls the relative circumferential speeds of the electrostatic image support and the copy paper transport apparatus provided inside the fixing device as a function of the distinguished relation between said lengths (A) and (B).
Abstract: A method of preparing a silver halide photographic emulsion comprising silver chloride as a principal component, which comprises adding to an aqueous solution of a hydrophilic colloid, an aqueous solution of a water-soluble silver salt and an aqueous solution of a water-soluble halide according to a simultaneous mixing method, and maintaining the rate of addition of the aqueous solution of a water-soluble silver salt and that of the aqueous solution of a water-soluble halide at a level not higher than the critical growth rate of silver halide grains and, at the same time, setting and maintaining the EAg value during the addition of the aqueous solution of a water-soluble silver salt and the aqueous solution of a water-soluble halide to a level not lower than 130 mV and not higher than 160 mV, said silver halide photographic emulsion being prepared in the presence of a water-soluble rhodium salt which is added during the course of emulsification and physical ripening of the emulsion.
Abstract: A light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that the said silver halide comprises silver halide grains containing at least 80 molar % of silver chloride and at least one of merocyanine dyes having the formula ##STR1## wherein R.sub.1 and R.sub.2 individually represent an alkyl group, an alkenyl group or an aryl group provided that at least one of R.sub.1 and R.sub.2 is an alkyl or aryl group having a sulfo group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 individually represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a phenyl group and any one pair of R.sub.3 and R.sub.4, R.sub.5 and R.sub.6, R.sub.1 and R.sub.6 or R.sub.4 and R.sub.5 may joint each other to form a ring; X is an oxygen atom, a sulfur atom or a selenium atom; and Y is an oxygen atom, a sulfur atom or a selenium atom provided that at least one of X and Y represents a selenium atom.
Abstract: A photographic recording material. On a support are provided a silver emulsion halide layer and a photographic layer. The photographic layer contains an indole compound represented by the general formula (I): ##STR1## wherein PUG represents a photographically useful group, Ball represents an organic group which has enough molecular weight and/or disposition to render the compound non-diffusible during processing of the photographic recording material with an alkaline medium and wherein the Ball contains a nitrogen atom which is directly attached to the 5th or 6th position of the indole ring. R.sub.1 represents a halogen atom or a monovalent organic group. R.sub.2 represents a hydrogen atom or a low molecular group attached, through a carbon atom, to the 2nd position of the indole ring. "m" represents an integer of zero to 3.
Abstract: A light-sensitive silver halide emulsion is disclosed, which comprises cores composed of silver halide grains and shells covering the cores. The cores consist essentially of silver halide containing silver iodide, and the shells consist essentially of silver bromide, silver chloride or silver chlorobromide excluding silver iodide. The shells have a thickness of from 0.01 to 0.1.mu.. This light-sensitive silver halide emulsion has high sensitivity and superior covering power.
Abstract: A photographic element comprising a support having thereof at least one silver halide emulsion layer and at least one temporary barrier layer, said temporary barrier layer comprising a mixture of a lactone polymer with repetitive units represented by the formula (I): ##STR1## and a vinylidene chloride terpolymer represented by the formula (II): ##STR2## wherein R is a hydrogen atom, an alkyl or an aralkyl group; R.sup.1, R.sup.2 and R.sup.3 each is a hydrogen atom or a methyl group; n.sup.1 is an integer of from 1 to 5, while n.sup.2 is an integer of 1 or 2; A is a monomer unit of a copolymerizable ethylenically unsaturated acid or of the salt thereof, while B is a copolymerizable ethylenically unsaturated monomer unit; x represents from 50 to 99.5% by weight, y represents from 0.5 to 44.5% by weight, and z represents from 0 to 49.5% by weight.
Abstract: Liquid developer formulations adapted to colored toners suitable for trichromatic processes in electrophotography, the toners being lightfast organic dye pigments with substantially no photoconductivity which are mixed with a paraffinic material as a protective polymer (a dispersing liquid being used if the protective polymer is a solid) and suspended in an insulating hydrocarbon carrier medium together with a metal soap and a phenol derivative soluble in the carrier.