Laser Or Radiation Exposure Other Than Visible Light Patents (Class 430/363)
  • Patent number: 5849468
    Abstract: When laser light is transmitted by or is reflected by a diffuser onto an object being illuminated, the object is not evenly illuminated, but is speckled with large speckles.The invention uses a moving diffuser which reduces the sizes of the speckles when the object is visually observed, and eliminates the speckles when a photographic film or plate is located at the object position and records the laser light.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: December 15, 1998
    Inventor: George M. Sawyer
  • Patent number: 5846684
    Abstract: An amorphous upconversion phosphor comprising barium fluoride a combination of rare-earth fluorides including yttrium and lanthanum and dopants, and a waveguide thereof on a substrate selected to have a refractive index lower than a thin film of the phosphor material or any other substrate with an appropriate buffer layer of lower refractive index that the film wherein infrared radiation is converted into visible or visible and ultra violet light. The amorphous upconversion phosphor is deposited at temperatures low enough to permit integration into semiconductor materials.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: December 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Gustavo R. Paz-Pujalt, James M. Chwalek, Anna L. Hrycin, Dilip K. Chatterjee, Liang-Sun Hung
  • Patent number: 5817447
    Abstract: A laser film printer system comprising:a source of a beam of light having a wavelength in the blue or ultraviolet region;a modulator for modulating the beam of light according to an input image signal;a monochrome film having a photosensitive layer which is sensitive to light in the blue or ultraviolet region; anda scanner for scanning the film with the beam of light to form an image therein representative of the input image signal;wherein the wavelength of the source of a beam of light and the grain size and coating density of the silver halide in the photosensitive layer of the monochrome film are chosen to eliminate interference fringes of said film image.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: October 6, 1998
    Assignee: Eastman Kodak Company
    Inventor: Kwok Leung Yip
  • Patent number: 5817440
    Abstract: A silver halide photosensitive material for a color filter comprising at least three silver halide emulsion layers having different spectral sensitivities and each silver halide emulsion layer contains couplers which form blue, green and red by coupling reaction with the oxidation product of a developer, wherein the amount of the couplers in a red coloring layer is adjusted so that each transmission density of the yellow and magenta dye components measured when all the couplers in the red coloring layer are subjected to color development is 1.5 or more, and a black matrix part becomes substantially black of transmission density of 2.5 or more when all the couplers on a support are subjected to reaction.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: October 6, 1998
    Inventors: Hiroyuki Hirai, Makoto Machida
  • Patent number: 5792597
    Abstract: In the improved image forming method, a silver halide photographic material whose characteristic curve passes below the line connecting three points A (logE.sub.max -1.55, fog+0.05), B (logE.sub.max -1.10, fog+0.25) and C (logE.sub.max -0.95, fog+0.50) on a coordinate system (E.sub.max is a maximum quantity of light) and passes above point P (logE.sub.max, fog+1.70) is subjected to digital exposure and thereafter processed photographically to form an image. This method is capable of forming an image of good gradation having no density skips in the highlighted area.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: August 11, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Kawai
  • Patent number: 5783372
    Abstract: The invention relates to a photographic element for digital exposure comprising at least one layer comprising an emulsion of cubic silver iodochloride grain wherein said grain has been sensitized with a gold compound and with less than 1 .mu.mole per silver mole of sulfur.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: July 21, 1998
    Assignee: Eastman Kodak Company
    Inventors: Jerzy Antoni Budz, Jerzy Mydlarz, Benjamin Teh-Kung Chen, James Lawrence Edwards
  • Patent number: 5783373
    Abstract: An electronic printing method is disclosed which comprises subjecting a radiation sensitive silver halide emulsion layer of a recording element to actinic radiation of at least 10.sup.-4 ergs/cm.sup.2 for up to 100.mu. seconds duration in a pixel-by-pixel mode. The silver halide emulsion layer is comprised of grains predominantly bounded by {100} crystal faces and internally containing three dopants each selected to satisfy a different one of the following class requirements: (i) a metal coordination complex containing a nitrosyl or thionitrosyl ligand in combination with a transition metal chosen from groups 5 to 10 inclusive of the periodic table of elements, (ii) a shallow electron trapping dopant, and (iii) a iridium coordination complex having ligands each of which are more electropositive than a cyano ligand. A gelatino-peptizer for the grains is employed that contains less than 30 micromoles of methionine per gram.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: July 21, 1998
    Assignee: Eastman Kodak Company
    Inventors: Jerzy Z. Mydlarz, Jerzy A. Budz, Eric L. Bell
  • Patent number: 5747227
    Abstract: A method of forming colored images is disclosed. A silver halide color photographic photosensitive material which contains at least one yellow coupler represented by formula (I) in a yellow color forming silver halide emulsion layer which is established on a support is exposed using a scanning exposure system in which the exposure time per picture element is shorter than 10.sup.-4 seconds and then subjected to color development processing: ##STR1## wherein A represents ##STR2## X represents an organic group which is required to form, along with the nitrogen atom, a nitrogen containing heterocyclic ring, Y represents an aromatic group or a heterocyclic group, and Z represents a group which is eliminated on reaction of the coupler represented by formula (I) with an oxidation product of a developing agent.The method provides high quality hard copy both cheaply and quickly by means of a scanning exposure using high density light such as lasers for example.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: May 5, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Kawai
  • Patent number: 5744287
    Abstract: The invention relates to a photographic element comprising a layer comprising a cyan dye forming coupler, a layer comprising a magenta dye forming coupler and a layer comprising a yellow dye forming coupler, wherein said layers further comprise silver halide emulsions, said emulsions comprise greater than 95 percent chloride and said element when exposed at less than 50 microseconds per pixel in each color record and at a resolution between 200 and 500 pixels per inch provides after development a maximum gamma between 3.4 and 6.0 in at least one color record layer within a log exposure range not exceeding 1.1.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: April 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Michael Richard Roberts, Alphonse Dominic Camp, Richard Lee Parton, Daniel John Collins
  • Patent number: 5698380
    Abstract: A method for forming an image, which comprises a step of subjecting a light-sensitive material to exposure to laser light having a multi-longitudinal-mode, wherein the light-sensitive material comprises a support having provided thereon at least one layer containing light-sensitive silver halide grains having an average grain size of no greater than 0.2 .mu.m, and the light-sensitive silver halide grains have a coverage rate of no greater than 1 g/m.sup.2, based on silver.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: December 16, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Ichizo Toya
  • Patent number: 5691119
    Abstract: The invention provides a method of treating silver chloride emulsions comprising providing a silver chloride emulsion, adding gold and sulfur chemical sensitizers, heating to chemically sensitize said emulsion, cooling to below about 50.degree. C., adding bromide to the emulsion and then after bromide addition adding spectral sensitizing dye.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: November 25, 1997
    Assignee: Eastman Kodak Company
    Inventors: Jerzy Mydlarz, Jerzy Antoni Budz
  • Patent number: 5686228
    Abstract: Certain propenenitrile compounds have been found to function as antifoggants and serve to improve the initial minimum density of black and white photo-thermographic and thermographic elements.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: November 11, 1997
    Assignee: Imation Corp.
    Inventors: Thomas J. Murray, Paul G. Skoug
  • Patent number: 5672467
    Abstract: A dye image forming photographic element is disclosed containing at least one green or red sensitized silver halide emulsion layer containing a dye-forming coupler and silver halide grains. At least 50 percent of the projected area of the silver halide grains is accounted for by grains (a) containing greater than 50 mole percent chloride, based on silver, (b) having {100} major faces, (c) exhibiting a thickness of 0.2 .mu.m or less, (d) exhibiting a mean equivalent lent circular diameter in the range of from 3 to 6 .mu.m, and (e) including a core and a surrounding band containing a higher level of iodide ions than the core and up to 30 percent of the silver forming the grains. The photographic element exhibits a sensitivity of greater than 750, where sensitivity is measured as the reciprocal of the exposure in lux-seconds required to produce a density of 0.15 above fog when the photographic element is exposed to a 3000.degree. K.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: September 30, 1997
    Assignee: Eastman Kodak Company
    Inventors: Lois Ann Buitano, Robert Lawrence Bittner
  • Patent number: 5654130
    Abstract: 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 thermographic elements may be used as a photomask in a process where there is a subsequent exposure of an ultraviolet or short wavelength visible radiation-sensitive imageable medium.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: August 5, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Thomas J. Murray
  • Patent number: 5565307
    Abstract: Disclosed are a silver halide photographic material containing at least one merocyanine color-sensitizing dye having a particular structure of formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group having a residue capable of making the compound soluble in water as a free acid or salt; V.sub.1, V.sub.2, V.sub.3 and V.sub.4 each represent a hydrogen atom or a monovalent substituent, provided that these substituents (V.sub.1, V.sub.2, V.sub.3, V.sub.4) are not bonded to each other to form a ring and that the sum of the molecular weights of V.sub.1, V.sub.2, V.sub.3 and V.sub.4 is from 4 to 50; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 each represent an optionally substituted methine group; M.sub.1 represents a charge-neutralizing pair ion; and m.sub.1 represents a number of from 0 to 4 that is necessary for neutralizing the intramolecular charge.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: October 15, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takanori Hioki, Toyohisa Oya, Seiichi Yamamoto
  • Patent number: 5556737
    Abstract: The present invention relates to a method for forming a color image in a silver halide color photographic material comprising a reflective support having coated thereon a composition comprising a polyester resin and a white pigment mixed and dispersed in said polyester resin, at least one yellow color forming silver halide photosensitive emulsion layer, at least one magenta color forming silver halide photosensitive emulsion layer, and at least one cyan color forming silver halide photosensitive emulsion layer on said support, each of said yellow, magenta and cyan color forming silver halide photosensitive emulsion layers having silver halide grains containing 95 mol % or more of silver chloride, wherein said method comprises the steps of exposing imagewise said silver halide color photographic material to light, developing said imagewise exposed silver halide color photographic material in a color developing solution, subjecting said developed silver halide color photographic material to desilvering by bleac
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: September 17, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Koichi Nakamura
  • Patent number: 5541046
    Abstract: An accurate digital representation of a color photograph can be obtained by proper registration of blue, green, and red images taken from a black-and-white photographic film having a unique structure including an antiabrasion layer, a first silver halide emulsion layer with silver grains which are sensitive to blue light, a filter layer being transmissive to a band of wavelengths corresponding to a given color other than blue, a timing layer for delaying penetration of processing fluids, a second silver halide emulsion layer with silver grains which are sensitive to the given color, and a base. The film excludes image dyes, dye developers or dye forming materials. The film also excludes components for emitting electromagnetic radiation at a wavelength different than a received wavelength.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: July 30, 1996
    Assignee: Polaroid Corporation
    Inventor: F. Richard Cottrell
  • Patent number: 5518867
    Abstract: An electron-beam-recording process comprises the steps of (1) providing an electron-beam-recording element, (2) introducing the element into a vacuum chamber, (3) imagewise exposing the element within the vacuum chamber to an electron beam and (4) processing the imagewise-exposed element to form a visible image. The electron-beam-recording element comprises a film support having, in order, on one side thereof a conductive layer comprising vanadium pentoxide, an adhesion-promoting hydrophilic colloid layer and an imaging layer. The imaging layer is comprised of an electron-beam-sensitive silver halide emulsion and the vanadium pentoxide is present in the conductive layer in an amount sufficient to impart thereto a resistivity of less than 5.times.10.sup.8 .OMEGA./sq.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: May 21, 1996
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, David A. Niemeyer, David F. Jennings
  • Patent number: 5500329
    Abstract: A method of forming an image in which a silver halide photographic material having on a waterproof resin coated support, which contains titanium dioxide in the resin, one or more light-sensitive layers each containing silver halide emulsion grains where at least one light-sensitive layer has been spectrally sensitized in accordance with the oscillating wavelength of a laser ray to be applied to the material is exposed by scanning exposure for a period of exposure time, per pixel, of 1.times.10.sup.-7 second or less with a scanning exposure device equipped with an optical modulator capable of varying the quantity of light in plural stages, to form a photographic image. The quantity of the reflection light from the photographic material at the oscillating wavelength of the laser beam is 30% or less of the quantity of the incident light to the same.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: March 19, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Kawai, Masami Hatori
  • Patent number: 5496670
    Abstract: A macroscopically isotropic side chain liquid crystal polymer is described containing photochromic mesogenic groups and which through irradiation with light is capable of being permanently or substantially permanently converted into an optically anisotropic phase without having been pre-oriented. The polymer is preferably a polyester between on the one hand either an aliphatic, optionally substituted, .alpha.,.omega.-dicarboxylic acid having a total chain length of up to 24 carbon atoms, or an aryl-, in particular phenyl-, carboxylic acid, and on the other hand an optionally substituted 1,3-propanediol containing the mesogenic group, or a group containing the mesogenic group, attached to the carbon in the 2-position. Furthermore, an optical storage device comprising a film of the polymer.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: March 5, 1996
    Assignees: Riso National Laboratory, Consiglio Nazionale della Richerche
    Inventors: Soren Hvilsted, P. S. Ramanujam, Fulvio Andruzzi
  • Patent number: 5478702
    Abstract: There is disclosed a method for forming a color image using a silver halide color photographic material having three silver halide photosensitive layers and a non-photosensitive layer, on a support, which comprises subjecting said photographic material wherein a compound represented by the formula (I) is contained in a non-photosensitive layer to scanning exposure with an exposure time being 10.sup.-4 sec or less per picture element, and processing said exposed photographic material with a color developer: formula (I) ##STR1## wherein X represents a hydrogen atom, a hydroxyl group, an amino group, or a sulfonamido group, R.sup.11 and R.sup.12 each represent the group defined for X, or an alkyl group, an aryl group, an amido group, a ureido group, an alkylthio group, an arylthio group, an alkoxy group, or an aryloxy group, and R.sup.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 26, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Kawai
  • Patent number: 5457007
    Abstract: The image forming process of the present invention includes subjecting a photosensitive material having at least one dye-forming layer for each of the three primary colors on a support to scanning exposure using light sources modulated in accordance with the image data, thereby reproducing a full color image of quality in which delicate shades in a high density color developed portion of high purity are reproduced stably.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: October 10, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masahiro Asami
  • Patent number: 5451490
    Abstract: An electronic printing method which comprises subjecting a radiation sensitive silver halide emulsion layer of a recording element to actinic radiation of at least 10.sup.-4 ergs/cm.sup.2 for up to 100 microseconds duration in a pixel-by-pixel mode is disclosed. The radiation sensitive silver halide emulsion layer contains a silver halide grain population comprising at least 50 mole percent chloride, based on silver, forming the grain population projected area. At least 50 percent of the grain population projected area is accounted for by tabular grains that are bounded by {100} major faces having adjacent edge ratios of less than 10, each having an aspect ratio of at least 2.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: September 19, 1995
    Assignee: Eastman Kodak Company
    Inventors: Jerzy A. Budz, Julie K. Ligtenberg, Michael R. Roberts, Susan K. Mroczek
  • Patent number: 5447811
    Abstract: A system and method of image reproduction in color with preferential tone mapping are provided in which the method includes the steps of capturing original scene parameters and creating a visual reproduction of the scene, the method additionally comprising:performing a transformation of said captured scene parameters, said transformation being such that, taken in conjunction with untransformed characteristics of the capturing and creating steps, it results in a reproduced tone mapping having instantaneous gamma values of viewed reproduction density relative to density of the original scene which are greater than a minimum value of A and less than A plus 0.35 times scene exposure density over a scene exposure density range of from 0.60 to 1.45 as measured relative to a zero density, 100% diffuse reflector in the original scene, the instantaneous gamma values within scene exposure density range further lying entirely within a range of values subtended by an angle of 14.degree.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: September 5, 1995
    Assignee: Eastman Kodak Company
    Inventors: John D. Buhr, Harry D. Franchino
  • Patent number: 5445924
    Abstract: There is disclosed a method for forming a color image using a silver halide color photographic material having three silver halide photosensitive layers on a support, comprising, in a cyan color-forming coupler-containing photosensitive layer, a cyan dye-forming coupler represented by formula (I) or (II), wherein said photographic material is exposed by a scanning exposure system and then is subjected to color development processing: ##STR1## wherein Za and Zb each represent --C(R.sub.3).dbd. or --N.dbd., provided that one of Za and Zb represents --N.dbd. and the other represents --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each represent an electron-attracting group; R.sub.3 represents a hydrogen atom or a substituent; and X represents a hydrogen atom or a coupling-off group, provided that R.sub.1, R.sub.2, R.sub.3, or X may be a divalent group, to form a dimer or higher polymer, or to bond to a polymer chain to form a homopolymer or copolymer.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: August 29, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Kawai
  • Patent number: 5443946
    Abstract: There is disclosed a silver halide photographic material and a method for forming a color image, which uses an emulsion that is suitable for scanning exposure by laser diodes, that is excellent in rapid processability, and that is high in sensitivity and contrast. And, there is provided a silver halide photographic material and a method for forming a color image, that uses an emulsion that is small in the fluctuation in gradation and sensitivity owing to a change in exposure illumination intensity and that is particularly small in the fluctuation in sensitivity owing to a change in temperature at the time of exposure in high-intensity exposure, such as laser scanning exposure.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: August 22, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masahiro Asami
  • Patent number: 5415978
    Abstract: An image is formed in a color photosensitive material through scanning exposure by using at least one semiconductor laser excited solid laser including a semiconductor laser, a non-linear optical element and means for controlling the temperature thereof as a light source for producing a laser beam. The laser beam is modulated by an external modulator in accordance with the image to be formed. Among the combinations of photosensitive layers and laser beams, at least two laser beam light sources are such that a laser beam has a wavelength falling within .+-.20 nm from the maximum wavelength in the spectral sensitivity distribution of the corresponding photosensitive layer. Each photosensitive layer has a spectral sensitivity distribution with a peak width of up to 40 nm.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: May 16, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masahiro Asami, Nobuharu Nozaki, Yoji Okazaki
  • Patent number: 5401620
    Abstract: A silver halide photographic material for laser exposure comprising at least one silver halide emulsion layer on a support,wherein said support or photographic constituent layers of said material contain an antihalation dye which exhibits a spectral absorption density of 0.4 or more before development with respect to the wavelength corresponding to the laser used and a spectral absorption density of 0.2 or more after development when the fluctuations of the average visual density excluding the support density and emulsion fog density are 0.02 or less.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: March 28, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masahide Sasai, Naoki Arai
  • Patent number: 5391443
    Abstract: A method is disclosed of extracting independent spectral image records from an imagewise exposed photographic element that contains superimposed silver halide exposure recording layer units each containing a latent image derived from a selected region of the spectrum. The photographic element contains N+1 superimposed silver halide exposure recording units. Photographic processing is conducted to produce a silver image in N+1 of the exposure recording units and a dye image distinguishable from other dye images in at least N exposure recording layer units. The photographic element is in one instance scanned in a spectral region of silver absorption and minimal image dye absorption to provide a first image density record, and the photographic element is also in N spectral regions wherein maximum density of a different image dye occurs to provide N additional image density records.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: February 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: Michael J. Simons, James E. Sutton
  • Patent number: 5364739
    Abstract: An X-Ray sensitive composition including one or several photopolymerizable monomer or photocrosslinkable polymer systems and thermochromic substances which can be used in a dry X-Ray reproduction process. The process is based on the different dielectric constants and dielectric losses exhibited by a monomer and the corresponding polymer or a polymer and the crosslinked polymer and the reaction of certain thermochromic substances which exhibits a specific threshold temperature above which these substances change from a colorless form to a color stable form. The X-Ray sensitive element is exposed according to a pattern of X-Ray with spatial modulation providing an X-Ray image to form a latent image of polymerized or crosslinked zones and unpolymerized or non crosslinked zones.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: November 15, 1994
    Assignee: Board of Regents, The University of Texas System
    Inventor: Jean J. Robillard
  • Patent number: 5350651
    Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing (e.g., lacking an incorporated dye-forming coupler). A first interlayer overlies the emulsion layer unit nearest the support for transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record and for absorbing after photographic processing scanning radiation within at least one wavelength region.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 27, 1994
    Assignee: Eastman Kodak Company
    Inventors: Gareth B. Evans, Christopher B. Rider, Michael J. Simons
  • Patent number: 5350664
    Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units at least two of which produce images of the same hue upon processing (e.g., lacking an incorporated dye-forming coupler), and obtaining separate blue, green and red exposure records from the photographic element. The photographic element is additionally comprised of, interposed between the two emulsion layer units, an interlayer unit for transmitting to the emulsion layer unit of the two units which is nearer the support, electromagnetic radiation that this emulsion layer unit is intended to record and capable, after processing, of reflecting electromagnetic radiation within at least one wavelength region.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 27, 1994
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Patent number: 5350650
    Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing (e.g., units lacking a dye-forming coupler). A first interlayer unit overlies the emulsion layer unit nearest the support and is capable of transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record. A second interlayer unit underlies the emulsion layer unit farthest from the support and is capable of transmitting to the emulsion layer units lying nearer the support imagewise exposing radiation these emulsion layer units are intended to record.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 27, 1994
    Assignee: Eastman Kodak Company
    Inventors: John Gasper, Gareth B. Evans, Christopher B. Rider, Michael J. Simons
  • Patent number: 5334469
    Abstract: 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.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: August 2, 1994
    Assignee: Eastman Kodak Company
    Inventors: James E. Sutton, John Gasper, Allen K. Tsaur, Ann Tarn
  • Patent number: 5310630
    Abstract: A silver halide color photographic photosensitive material which has been spectrally sensitized to light of wavelengths greater than of about 670 nm in which are highly sensitive to light of wavelength greater than about 670 nm and sufficiently insensitive to visible light having a shorter wavelength. The photosensitive materials comprises a silver halide photosensitive layer containing the yellow coupler, a silver halide photosensitive layer containing a magenta coupler, a silver halide photosensitive layer containing a cyan coupler and at least one non-photosensitive hydrophilic layer. Each of the photosensitive layers are spectrally sensitized such that they have different peak spectral sensitivities at light wavelengths greater than about 670 nm.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: May 10, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Inagaki
  • Patent number: 5310628
    Abstract: There is described a process for recording a positive or negative continuous tone color copy having the same or lower contrast than a continuous tone original image, comprising the steps of:providing a photographic element comprising a support having thereon a silver halide emulsion unit capable of forming a yellow image, a silver halide emulsion unit capable of forming a cyan image, and a silver halide emulsion unit capable of forming a magenta image, each image-forming unit having a maximum spectral sensitivity at a different wavelength of radiation, and at least one of the image-forming units having a gamma as described herein,receiving image data representing the densities of the yellow, magenta, and cyan records of the original image,modifying said image data and using it to control three exposure sources, each emitting radiation in the region of maximum spectral sensitivity for a corresponding one of the image-forming units, so that, after exposure, the recorded image density range for at least one of o
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: May 10, 1994
    Assignee: Eastman Kodak Company
    Inventors: Annabel A. Muenter, James C. Owens
  • Patent number: 5300381
    Abstract: A system and method of image reproduction in color with preferential tone mapping in which the image reproduction is subjected to a scene parameter transformation which when taken in conjunction with untransformed characteristics of the image reproduction system and method results in a reproduced tone mapping having instantaneous gamma values of viewed reproduction density relative to density of the original scene which are greater than 1.0 and less than 1.0 plus 0.35 times scene exposure density over a scene exposure density range of from 0.6 to 1.45 as measured relative to a zero density, 100% diffuse reflector in the original scene. Preferably, the instantaneous gamma values within this scene exposure density range further lie substantially within a range of values subtended by an angle of 14.degree. as measured from a reference point at 0.0 scene exposure density and 1.0 viewed reproduction density gradient.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: April 5, 1994
    Assignee: Eastman Kodak Company
    Inventors: John D. Buhr, Harry D. Franchino
  • Patent number: 5300405
    Abstract: Sheets of photosensitive material are processed through a processor comprising a series of developing, fixing, washing and drying sections, the drying section 14 including a plurality of conveyor rollers 42, a drive shaft operatively coupled to the rollers, and a plurality of nozzles 50 for injecting hot air against the traveling sheets. The rollers 42 and/or the nozzles 50 are arranged in the drying section so as to satisfy at least one of the relationships (1) and (2):k.sub.1 M+0.5<L<(k.sub.1 +1)M-0.5 (1)k.sub.2 M+0.5<P<(k.sub.2 +1)M-0.5 (2)wherein L is the distance (in mm) between two adjacent conveyor rollers in the drying section, P is the distance (in mm) between two adjacent nozzles, M is the distance (in mm) over which the sheet is fed per revolution of the drive shaft, k.sub.1 is equal to 0 or an integer of 1 to 8, and k.sub.2 is equal to 0 or an integer of 1 to 8.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: April 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Yamada, Junichi Kose, Shinichi Matsuda, Yasuhiro Kawai
  • Patent number: 5298382
    Abstract: Photographic silver halide photosensitive material is processed, after exposure, by treating it with a working fixer solution. The photosensitive material comprises at least one layer of silver halide emulsion on a support and contains at least 10% by weight, based on gelatins, of a gelatin having an isoelectric point of at least 5.0 on the emulsion layer side. The working fixer solution is prepared by furnishing a fixer concentrate of at least pH 5 containing a thiosulfate as a fixing agent, 0.05-0.8 mol/liter of a sulfite and up to 0.01 mol/liter of a water-soluble aluminum salt, and diluting the fixer concentrate with water, thereby forming the working fixer solution containing a minimized amount of ammonium thiosulfate and 0.5-2.5 mol/liter of sodium thiosulfate. The method provides improved rapid processing with increased degrees of fixation and drying while preventing the generation of sulfurous acid and ammonia gases.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: March 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Toyoda, Itsuo Fujiwara
  • Patent number: 5260176
    Abstract: A method of forming a color image on a silver halide color photographic light-sensitive material having at least one silver halide emulsion layer provided on a reflective support, which does not substantially contain silver iodide and which contains silver chlorobromide or silver chloride grains having a silver chloride content of at least 95 mol %, said grains containing at least one metal ion consisting of a group of ions of metals of Group VIII of the Periodic Table, transition metals of Group II of the Periodic Table, lead and thallium in an amount of at least 10.sup.-9 mol per mol of silver halide, comprising exposing said photographic material by means of a scanning exposure using an image signal formed by scanning an original image and thereafter continuously processing said photographic material with a color developer substantially not containing benzyl alcohol, wherein the amount of the replenisher to the developer is 200 ml or less per m.sup.2 of the photographic material processed thereby.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: November 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeaki Otani, Yoji Okazaki
  • Patent number: 5244776
    Abstract: A method of forming a color image in a silver halide color photosensitive material comprisingexposing the photosensitive material in a scanning exposure system for a time period shorter than about 10.sup.-4 second per picture element, and thereaftersubjecting the exposed material to development processing for a total processing time of about 90 seconds or less, inclusive of drying time,the photosensitive material comprising a support having thereon at least three silver halide emulsion layers differing in color sensitivity, at least two of which have a spectral sensitivity maximum in the wavelength region of about 670 nm or longer, wherein at least one of the silver halide emulsion layers comprises (a) at least one coupler capable of developing color upon coupling reaction with the oxidized form of an aromatic amine compound and (b) at least one compound of general formula (I) or (II): ##STR1## wherein the variables are as defined in the specification.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: September 14, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Kawai
  • Patent number: 5198328
    Abstract: A silver halide color photographic material comprising a support having thereon at least three photosensitive layers containing a silver chloride emulsion or a silver chlorobromide emulsion having an average silver chloride content of at least 96 mol % and containing substantially no silver iodide, said at least three photosensitive layers comprising a cyan coupler-containing layer, a magenta coupler-containing layer and a yellow coupler-containing layer, wherein said at least three photosensitive layers each has different spectral sensitivity peak in the photosensitive wavelength regions of 650 to 690 nm, 720 to 790 nm and 770 to 850 nm, respectively, and the total coating weight of silver halide is not more than 0.78 g/m.sup.2 in terms of silver, and the above-disclosed material wherein the support is a reflective support comprising a base paper impregnated with a synthetic polymer through the surface of the base paper, and a white pigment-containing water-resistant resin layer coated on the base paper.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: March 30, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Tadashi Ogawa
  • Patent number: 5198327
    Abstract: For formation of a photographic image by development of a silver halide photographic material with an automatic developing machine, a certain period of time or not longer than 15 seconds is set as the time of the development step and a silver halide photographic material is used which, when developed for a period of one-half of said certain period of time after such an exposure that the exposed silver halide photographic material, when developed for said certain period of time, would give a value of (Dmax-fog).times.1/2, gives a value of (D-fog) having 70% or more of the value of (Dmax-fog).times.1/2. The silver halide photographic material comprises at least one of a combination of (1), (2) and (3) or (2) and (4): where: (1) represents a silver halide emulsion containing a water-soluble iridium salt; (2) represents a silver halide emulsion layer with a silver amount from 1 to 3.5 grams/m.sup.2 coated on one surface of said emulsion layer; (3) represents silver halide grains wherein the mean grain size is 1.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: March 30, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Yamada, Naoki Arai, Kazuo Kagawa
  • Patent number: 5198321
    Abstract: A method for forming an image is described which includes bringing a transparent heat-sensitive recording material including a transparent support made of a synthetic polymer having thereon a transparent heat-sensitive recording layer into contact with a light-absorbing material, at least at the time of effecting recording, and irradiating the light-absorbing material with a laser beam to heat the transparent heat-sensitive recording layer and to cause color formation therein. High speed, high density, and high quality recording can be performed with an increased light absorption efficiency.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: March 30, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Noriyuki Hosoi, Kotaro Nakamura
  • Patent number: 5196297
    Abstract: This invention relates to novel recording materials which employ color-forming di- and triarylmethane compounds possessing certain S-containing ring-closing moieties, namely, or thiolactone, dithiolactone or thioether ring-closing moiety and to a method of forming color by contacting these dye precursor compounds with a Lewis acid material capable of opening the thiolactone, dithiolactone or thioether ring-closing moiety whereby the compound is rendered colored, that is, converted to its chromophore color.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: March 23, 1993
    Assignee: Polaroid Corporation
    Inventors: Edward J. Dombrowski, Jr., James R. Freedman, Patrick F. King
  • Patent number: 5194367
    Abstract: A method for processing a silver halide photographic material for infrared laser scanner is described, comprising developing the silver halide photographic material which comprises a support having thereon at least one hydrophilic colloidal layer including at least one silver halide emulsion layer with an automatic developing machine, wherein the silver halide emulsion layer contains silver chloroiodobromide grains having a silver iodide content of 0 to 2 mol% and a silver chloride content of 0 to 30 mol%, the hydrophilic colloidal layer has a swelling percentage of 200% or less, and as a developing solution for the development step in the automatic developing machine, a single developing solution containing a 3-pyrazolidone developing agent represented by formula (I) is used therein: ##STR1## wherein R.sub.0 represents a substituted or unsubstituted aryl group; and R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: March 16, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Yamada, Takashi Toyoda, Naoki Arai
  • Patent number: 5185237
    Abstract: A novel silver halide color photographic material is provided which comprises a support having coated thereon at least three silver halide emulsion layers having maximum spectral sensitivities in at least three sensitive wavelength ranges of 400 nm to 500 nm, 500 nm to 570 nm and 650 nm to 730 nm and is sensitive to said three sensitive wavelength ranges to form yellow, magenta and cyan dye images, respectively, characterized in that said silver halide color photographic material has additionally at least one function to provide a maximum spectral sensitivity in wavelength range other than said three sensitive wavelength ranges and to form any of yellow, magenta or cyan dye image by an exposure to the light of said other wavelength range. A color image formation method is also disclosed which comprises exposing said silver halide color photographic material to light in a print exposure process in combination with a scanning exposure process, and then developing said silver halide color photographic material.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: February 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Kawai
  • Patent number: 5185236
    Abstract: A full color recording material which has, on a support, at least three silver halide photosensitive emulsion layers which have different color sensitivities and which contain a yellow coupler, magenta coupler and cyan coupler, respectively, and in which at least two of these layers are selectively spectrally sensitized to match semiconductor laser light beams of wavelengths greater than 670 nm, wherein said at least three silver halide photosensitive layers which have different color sensitivities each contains silver chlorobromide grains with a layer average silver chloride content of at least 96 mol %, and said silver chlorobromide grains have a silver bromide local phase of which the silver bromide content is higher than that of the surroundings and a method for forming color images wherein the recording material is imagewise exposed while being transported at a feed rate which matches the scanning rate with semiconductor light beams, and substantially continuously to the exposing, the material is subject
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: February 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Kiyoshi Kawai, Masaki Okazaki, Yoshiharu Okino
  • Patent number: 5162195
    Abstract: A method for processing a silver halide color photosensitive material is disclosed: (i) subjecting a full-color photographic material to scanning exposure to three lights each having different wavelength; (ii) processing said exposed full-color photographic material with a color developer containing at least one aromatic primary amine color developing agent and containing chloride ion in amount of from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mole/liter and bromide ion in an amount from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mole/liter.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: November 10, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Inagaki
  • Patent number: 5158862
    Abstract: This invention relates to the preparation of a supported modulating film having a permanent orange yellow imaged layer of the homopolymer of crystralline 5,7-dodecadiyn-1,12-bis(isopropyl carbamate) monomer having the structure ##STR1## and to the use of said film as a blue light modulator in the production of master printing plates or printed circuit boards.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: October 27, 1992
    Assignee: ISP Investments Inc.
    Inventor: Kou-Chang Liu