Eastman-kodak Company

Allen K Tsaur

Mamie Kam-Ng

Sang H Kim

David E Fenton

David Lynn Patton

Robert E Dickerson

Donald L Black

John Gasper

James Edward Sutton

Jacob I Cohen

John D Baloga

George H Hawks, Iii

Richard A Demauriac

Ann Tarn

Dale Frederick McIntyre

Ralph L Piccinino, Jr

Teh-Ming Kung

Roger L Lok

Seshadri Jagannathan

Thomas B Brust

Joseph C Deaton

Kenneth Joseph Reed

Kenneth D Corby

Samuel Chen

Kevin H Blakely

Kin K Lum

Jerzy A Budz

Gary L House

Yun C Chang

Scott J Daly

Hsien-Che Lee

Richard Lawrence VanMetter

Michael G Antoniades

Andrew Sailus

Sherrill A Puckett

Jerry Carmen

Carl A Testa

Leanne M Capozzi

Debra L Hartsell

Eleanor Chaffee

Harold G Judd

Joseph A DeAngelo

Aaron S Waitz

A system and method for printing images for use in an authentication document from a plurality of different printers and/or capture devices. Each of the plurality of different printers and/or capture device having a unique ID. The images are printed on an authentication document with the unique ID. The system provides for verification that the presenter of an authentication document. The unique ID and/or other information may be provided in a form that is not visible under normal viewing conditions. By canning the image the unique ID may be obtained and used for authentication. The obtained ID may be compared with a known information stored at a database for confirming that the presenter of the authentication document is the individual to whom it was issued.

Method for printing and verifying authentication documents

A computer software product and method of organizing and manipulating a plurality of images captured in a variety of different circumstances and over a period of time. The images can be automatically manipulated so as to improve the visual appeal between images The software product allows a user to select images for placement into at least one group.

Computer software product and method for organizing and manipulating of images

An adapter for use in a processing assembly can interface paper in magazines or cassettes from external printers with a minilab printer so that the paper printed externally can be processed using the minilab's processor and the processor's replenishment system. The adapter which includes a light-tight feed slot is configured to receive a cassette thereon and the adapter can be mounted onto the processing assembly. When mounted on the processing assembly the adapter along with the feed slot forms a light-tight path from the cassette to the printer. Printer functions such as back-marking, printing, punching, etc. can be deactivated during use of the adapter, and photosensitive material which enters the printer through the feed-slot of the adapter will follow the printing path of the printer and thereby trigger checks which are utilized to control replenishment in the processor of the processing assembly. With this arrangement, photosensitive material or paper which does not require the printer functions of the printer, such as paper that has been printed at an external printer, can be fed into the printer to follow the normal printing path. Since the paper follows the normal printing path, checks within the printer such as paper size and/or width are triggered via signals and these signals are utilized to provide for correct replenishment in the processor.

Adapter for use with a photographic processing assembly

A method for affixing a thermal dye transfer image to a magnetic substrate comprising:

Affixing thermal dye transfer image on magnet

A process of preparing a photographic emulsion having radiation-sensitive silver iodohalide grains. Iodide is introduced into the grains by releasing iodide ions from iodate (IO.sub.3.sup.-). Release of iodide ions from the IO.sub.3.sup.- is employed to enhance the uniformity of iodide availability during emulsion preparation, either during grain precipitation or subsequent halide conversion. The process of the invention is in one preferred form directed to the partial halide conversion of tabular grains. A speed-granularity advantage is demonstrated.

Process for the preparation of silver halide emulsions having iodide

A photographic emulsion is disclosed comprised of coprecipitated radiation-sensitive silver halide grains containing greater than 70 mole percent bromide, based on silver, and exhibiting a coefficient of variation of less than 30 percent. Greater than 90 percent of total projected area of the grains is accounted for by tabular grains having {111} major faces, exhibiting a thickness of less than 0.07 .mu.m, and having latent image forming silver salt epitaxy chemical sensitization sites on their surfaces, and a dispersing medium that contains a grain dispersity reducing concentration of a polyalkylene oxide block copolymer surfactant comprised of two terminal lipophilic alkylene oxide block units linked by a hydrophilic alkylene oxide block unit accounting for from 4 to 96 percent of the molecular weight of the polymer. The emulsions offer unexpectedly low levels of minimum density and can be more easily manufactured as compared to conventional ultrathin tabular grain emulsions with comparably limited grain dispersity.

Limited dispersity epitaxially sensitized ultrathin tabular grain

A radiographic element is disclosed in which from 10 to 60 percent of total silver forming the spectral sensitized silver halide grains is provided by one or more ultrathin tabular grain emulsions. It has been discovered that by limiting the proportions of ultrathin tabular grains desirably cold image tones can be obtained while improving other performance characteristics, including achieving significant reductions in crossover.

Radiographic elements containing ultrathin tabular grain emulsions

A method is disclosed for constructing a tone scale curve. In this curve, equal log exposure differences in an x-ray image of an object produce substantially equal brightness differences in a displayed image.

Constructing tone scale curves

Silver iodobromide tabular grain emulsions of enhanced photographic sensitivity are disclosed. The silver iodobromide grains contain from 2 to less than 10 mole percent iodide, exhibit a coefficient of variation of less than 20 percent, and consisting essentially of tabular grains having opposed parallel major faces. Each of the tabular silver bromoiodide grains exhibit an iodide concentration in excess of 6 mole percent within a surface region extending to a depth of less than 0.02 .mu.m and exhibit a central iodide concentration of less than 2 mole percent. The tabular grain emulsion is prepared by providing within a reaction vessel a population of silver bromide or iodobromide host grains exhibiting a coefficient of variation of less than 20 percent and containing less than 2 mole percent iodide consisting essentially of tabular grains and introducing silver, bromide and iodide ions into the reaction vessel for deposition onto the major faces on the host tabular grains, with iodide ions accounting for at least 25 mole percent of total halide ions introduced.

Tabular grain silver iodobromide emulsion of improved sensitivity and

A method is disclosed of extracting two or more spectral image records from an imagewise exposed multicolor photographic element containing a plurality of tabular grain emulsions for individually recording imagewise exposure in at least two different regions of the visible spectrum. In each of the tabular grain emulsions tabular grains exhibiting a mean equivalent circular diameter of greater than 0.4 micrometer and a mean thickness of less than 0.2 micrometer account for greater than 90 percent of total grain projected area. No more than one of the tabular grain emulsions exhibits a mean tabular grain thickness of less than 0.07 micrometers, and each of tile remaining tabular grain emulsions exhibit a coefficient of variation of tabular grain thickness of less than 15 percent. The mean tabular grain thickness of emulsions for recording imagewise exposure to different regions of the visible spectrum differs by at least 0.02 micrometer. The imagewise exposed element is photographically processed to develop silver halide grains as a function of exposure and to remove developed silver. The processed photographic element is scanned in a first spectral wavelength region at which the tabular grains in a first of the emulsions reflect to a greater degree than the tabular grains of any emulsion which has recorded imagewise exposure in a different region of the spectrum, and the processed photographic element is also scanned in a second spectral wavelength region within which the tabular grains in a second of the emulsions reflect.

Photographic processes for producing spectral image records retrievable

Silver halide emulsions are disclosed in which at least 50 percent of total grain projected area is accounted for by tabular grains (1) bounded by {100} major faces having adjacent edge ratios of less than 10, (2) each having an aspect ratio of at least 2, and (3) internally at their nucleation site containing iodide and at least 50 mole percent chloride. The emulsions are prepared by a process comprised of the steps of (a) introducing silver and halide salts into a dispersing medium so that nucleation of the tabular grains occurs in the presence of iodide with chloride accounting for at least 50 mole percent of the halide present in the dispersing medium and the pCl of the dispersing medium being maintained in the range of from 0.5 to 3.5 and (b) following nucleation completing grain growth under conditions that maintain the {100} major faces of the tabular grains.

High chloride tabular grain emulsions and processes for their preparation

A method is disclosed of extracting two or more spectral image records from an imagewise exposed multicolor photographic element containing a plurality of tabular grain emulsions for individually recording imagewise exposure in at least two different regions of the visible spectrum. In each of the tabular grain emulsions tabular grains exhibiting a mean equivalent circular diameter of greater than 0.4 micrometer and a mean thickness of less than 0.2 micrometer account for greater than 90 percent of total grain projected area. No more than one of the tabular grain emulsions exhibits a mean tabular grain thickness of less than 0.07 micrometers, and each of the remaining tabular grain emulsions exhibit a coefficient of variation of tabular grain thickness of less than 15 percent. The mean tabular grain thickness of emulsions for recording imagewise exposure to different regions of the visible spectrum differs by at least 0.02 micrometer. The imagewise exposed element is photographically processed to develop silver halide grains as a function of exposure and to remove developed silver. The processed photographic element is scanned in a first spectral wavelength region at which the tabular grains in a first of the emulsions reflect to a greater degree than the tabular grains of any emulsion which has recorded imagewise exposure in a different region of the spectrum, and the processed photographic element is also scanned in a second spectral wavelength region within which the tabular grains in a second of the emulsions reflect.

Photoelectric elements for producing spectral image records retrievable

A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the layer units containing in at least one layer a silver halide emulsion having a grain halide content of from 0 to 5 mole percent chloride, from. 0.5 to 20 mole percent iodide, and from 80 to 99.5 mole percent bromide, based on total silver. The photographic element is characterized in that at least one of the silver halide emulsion layers is a tabular grain emulsion layer in which the coefficient of variation of the tabular grain emulsion is less than 15 percent, based on the total grain population of the emulsion, and the total grain population of the tabular emulsion consists essentially of tabular grains having a mean thickness of less than 0.3 .mu.m and a mean tabularity of greater than 25.

Reversal photographic elements containing tabular grain emulsions

A process is disclosed of accelerating the preparation of a photographic emulsion containing tabular silver halide grains exhibiting a reduced degree of total grain dispersity. A dispersing medium is provided containing bromide ions, and a population of silver halide grain nuclei containing parallel twin planes is formed in the dispersing medium. A portion of the grain nuclei are ripened out, and then the silver halide grain nuclei containing parallel twin planes remaining are grown to form tabular silver halide grains. A polyalkylene oxide containing both hydrophilic and lipophilic block units is selected from among those known to be capable of reducing total grain dispersity when present during nucleation. However, in this process precipitation is accelerated while maintaining low dispersity of the total grain population by forming twin planes in the grain nuclei within the pAg and temperature boundaries of Curve A in FIG. 1 and by delaying introduction of the polyalkylene oxide block copolymer surfactant until after the silver halide nuclei containing twin planes have been formed.

Process for accelerating the precipitation of a low coefficient of

A radiographic element is disclosed comprised of a film support capable of transmitting radiation to which the radiographic element is responsive having opposed major surfaces, and, coated on the opposed major surfaces, spectrally sensitized high tabularity tabular grain emulsion layer units, and, interposed between each of the emulsion layer units and the support, means for absorbing radiation to which said emulsion layer units are responsive. The emulsion layer units exhibit a coefficient of variation of less than 15 percent, based on the total grain population having an equivalent circular diameter of greater than 0.1 .mu.m, and greater than 97 percent of the projected area of grains having an equivalent circular diameter of greater than 0.1 .mu.m is accounted for by tabular grains having a mean thickness of less than 0.3 .mu.m and a halide content of from 0 to 5 mole percent chloride, from 0 to 5 mole percent iodide, and from 90 to 100 mole percent bromide, based on total silver.

Growing community of inventors

Fairport, NY, United States of America

Allen K Tsaur