Multicolor Printing Patents (Class 355/88)
  • Patent number: 11537758
    Abstract: A process for placing a circuit array on a sheet having adhesive during a pick and place operation in which a vacuum is used during its placement to minimize air bubbles between the adhesive layer and the circuit array.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: December 27, 2022
    Inventors: Michael Scruggs, Robert Singleton
  • Patent number: 11294323
    Abstract: An air bearing assembly is disclosed. The air bearing assembly may comprise a print component to interact with an imaging plate, the imaging plate being rotatable relative to the print component. The air bearing assembly may comprise an air bearing pad positioned adjacent to a surface of the imaging plate, the air bearing pad to generate a cushion of air to maintain a defined distance between the print component and the imaging plate. A method and a print apparatus are also disclosed.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: April 5, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Israel Katz, Boris Khodos, Avi Barazani, Sergio Turnowski
  • Patent number: 8320002
    Abstract: This invention provides a flexible method capable of appropriately determining whether 2-path printing can proceed especially to second-path processing, in order to apply a conventional upper limit management mechanism to a 2-path printing system. According to this invention, when executing 2-path printing, the printing system performs upper limit management based on the sheet count of use for a user. When executing second-path print processing, even if the count of sheets used by the user in first-path print processing has reached an upper limit value, print processing is permitted in second-path print processing.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Jun Horiyama
  • Patent number: 8077348
    Abstract: There is known a technique of inputting the contents of image data and the use purpose of a print material and automatically selecting a combination of color materials appropriate for them. However, it cannot be confirmed before printing whether improvement of image quality commensurate with the cost and labor to input contents information can be obtained. To solve this problem, the ratio of the amount of the color material of a spot color used to that of the color materials of process colors used in input image data is calculated. The recommendation grade of printing using the spot color is determined on the basis of the ratio. Further, display of the recommendation grade is controlled.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: December 13, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoko Sato, Shinichi Kato, Tsutomu Sakaue, Ritsuko Otake, Yoichi Kashibuchi
  • Patent number: 8068238
    Abstract: A method for printing drawing data on the basis of work process steps described in a job ticket, includes: receiving a job ticket and drawing data; judging whether work process steps should be changed on the basis of a process status in the image processing apparatus; a second judgment step of judging whether there is an external device different from the image processing apparatus and capable of executing at least one of the work process steps; and creating a job ticket for causing the external device to execute the work process steps if determined to exist. The method solves the problem that an image processing apparatus cannot change work process steps during the print job process, and a significant delay may occur in a process schedule. Work process steps that should be processed by the image processing apparatus are changed according to a process status in the image processing apparatus.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: November 29, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masashi Kuroshima
  • Patent number: 7239413
    Abstract: A replaceable component is installable in and removable from a printing device and contains one or more supplies used in printing by the printing device. A memory and a port are in the replaceable component. Data that characterizes usage of the one or more supplies in printing by the printing device is stored in the memory. The data can be transferred through a cable from the port to a host computer using a data transfer protocol of the port.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: July 3, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin Owen, Jeetendra Kumar
  • Patent number: 6980316
    Abstract: In a tandem type color printer, a second memory memorizes bitmap data sets in a second arrangement. In the second arrangement, each of the bitmap data sets is divided into a plurality of data units. In addition, the data units of all of the bitmap data sets are arranged on the basis of predetermined output order regardless of the colors. A first memory separately memorizes the bitmap data sets in a first arrangement different from the second arrangement. A data line control circuit reads out the bitmap data sets from the first memory when a first copy of a printed matter is made by the use of the bitmap data sets. In this time, the data line control circuit stores the bitmap data sets in the second memory with changing its arrangement. When a second or later copy of the printed matter is made, the data line control circuit reads out the bitmap data sets at high speed.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: December 27, 2005
    Assignee: NEC Corporation
    Inventor: Fumiaki Sugiyama
  • Publication number: 20040011995
    Abstract: In color printing, and in the fine arts, cholesteric liquid crystal (CLC) color inks are known to possess much higher color saturation and brightness than conventional pigment and dyed based inks. However, prior art CLC ink formulations are inconvenient because in the liquid phase they have to be confined in cells, and in the solid phase, they have to be applied at high temperature, and have to be aligned by some means to produce the optimum color. This invention solves the problem encountered in the CLC prior art, by making pre-aligned CLC platelets or flakes of appropriate thickness and size and mixing them in appropriate host fluids producing a novel CLC ink which can be applied at room temperature and without the need for alignment. The new pre-aligned room temperature CLC ink can be used as a substitute for conventional inks in almost all printing and plotting, and manual drawing and painting. Using the notch filter CLC platelets, the brightness is further enhanced.
    Type: Application
    Filed: April 21, 2003
    Publication date: January 22, 2004
    Inventor: Sadeg M. Faris
  • Patent number: 6275281
    Abstract: The invention intends to match the image writing start positions for different color components, even in case of the rotation speed of the photosensitive member etc. fluctuates by the variation in the load or by the backlash of the driving gears. For attaining this object, the invention is featured by a configuration of detecting and retaining the phase difference between the ITOP signal and the BD signal at a predetermined timing, also detecting the phase difference between the ITOP signal and the BD signal for each formation of the color component image, comparing the phase difference detected at the predetermined timing with that detected for each formation of the color component image, and controlling the timing of starting the image formation by changing, by an image writing tart timing control circuit, the number of BD signal to be counted after the generation of ITOP signal and before the start of image formation.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: August 14, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuya Nozaki
  • Patent number: 5812705
    Abstract: A device to align images for a printing press control system comprising, a device for capturing a reference image containing one or more image planes from a reference copy, a device for converting the reference image into a monochrome reference image, a device for capturing a production image containing one or more image planes from a production copy, a device for converting the production image into a monochrome production image, a device for defining at least one object model in the monochrome reference image, a device for identifying the position of at least one of the object models in the production image, a device for defining a transfer function which maps the position of the models in said monochrome production image to the position of the models in said monochrome reference image, and a device for applying the transfer function to each of the image planes of the production image, resulting in its alignment to the reference image.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: September 22, 1998
    Assignee: Goss Graphic Systems, Inc.
    Inventors: Xinxin Wang, Robert Nemeth
  • Patent number: 5612172
    Abstract: A method and apparatus for printing on to a photosensitive material. The apparatus includes a light source for producing light composed of at least two colors, a collimator for collimating the light produced by the light source so as form a beam of light, a modulator for modulating the beam of light in accordance with one of the predetermined color components, a filter for filtering out the color component which has been modulated, and a beam directing device for directing the modulated colored filter beam of light, onto a photosensitive material.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: March 18, 1997
    Assignee: Eastman Kodak Company
    Inventors: Raymond E. Wess, Mark M. Meyers
  • Patent number: 5610687
    Abstract: Specially designed non-uniform filters allow for the flexible alteration of the exposure profile during a fade and dissolve process in a motion picture printer. In accordance with one aspect of this invention, there is provided a system for fading and dissolving two original color record scenes together on a light sensitive material, the system comprising: a) a first color record; b) a second color record; c) a motion picture printer comprising a light source, a fader, a non-uniform filter and an exposing slit; and d) a light sensitive material onto which the first and second color records can be illuminated by means of the light source. The non-uniform filter is non-uniform in one direction thereof with respect to its ability to filter light from the light source, and is positioned so as to alter the relative intensity and/or spectral characteristics of light trasmitted to the light sensitive material as the fader is opened and closed during a fade and dissolve printing process.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: March 11, 1997
    Assignee: Eastman Kodak Company
    Inventors: Mitchell J. Bogdanowicz, Richard C. Sehlin
  • Patent number: 5366581
    Abstract: A film pasting apparatus for pasting a color separation film on a base film used for a photomechanical process, comprises a lower table for placing a base film and having optical sensors, an upper table disposed above the lower table and having suction means and pasting means, a film tray for storing a color separation film on which a first registration mark having two line segments defining a predetermined angle and a second registration mark having two line segments parallel to the two line segments of the first registration mark are formed at positions corresponding to the sensors, film picking means for inserting the film tray into the apparatus main body below the upper table to draw the color separation film to the upper table by the suction means, film registering means for withdrawing the film tray from the apparatus to detect the registration marks of the color separation film drawn to the upper table by using the sensors, for registering the color separation film based on a result of detection of th
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: November 22, 1994
    Assignees: Toppan Printing Co., Ltd., Fuji Photo Film Co., Ltd.
    Inventors: Takashi Kuramoto, Tetsuji Utsuda, Takeo Onga, Takashi Kominato, Hidenori Kaneda, Mitsuo Taga
  • Patent number: 5357315
    Abstract: An exposure condition is determined with reference to a difference between a density value Dx of a negative film to be printed and a corrected density value DNi (i=x) of a reference film. The method comprises the steps of: measuring density values DNi of a plurality of types of reference films and light amounts Li of a light source at times of measurement of the density values DNi; storing the density values DNi and the light amounts Li as memorized density values and memorized light amounts corresponding to the respective reference films; measuring a current light amount L of a current light source which is used for exposure of the negative film to be printed; calculating a difference logL-logLi=.delta.i between the light amount L and each of the memorized light amounts Li; correcting each of the memorized density values DNi by the use of the difference .delta.i.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: October 18, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kenji Suzuki
  • Patent number: 5351106
    Abstract: An exposure system for light sensitive materials held in a vacuum frame includes an electrical light source and a power supply to the light source, the power supply having a power consumption monitor so it can modify the power supplied to the light source to compensate for any fluctuations in power consumption by the light.The light source is supported in a housing having air exhaust openings proximate the mid-portion of the light source. A blower cools the light source with a helical airflow. The voltage drop across the electrical light source is used to control the speed of the blower to maintain the voltage of the light source at a desired level. The housing has an open face and a removable pane. An indicator indicates the presence of the pane. A metal shutter in the housing has a black ceramic surface adjacent the light source to selectively expose light sensitive materials. A control means closes the shutter when the indicator senses removal of the pane while power is being supplied to the light source.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: September 27, 1994
    Assignee: Amergraph Corporation
    Inventors: Robert J. Lesko, Ira J. Pitel
  • Patent number: 5288586
    Abstract: An exposure apparatus for exposing light-sensitive recording medium through a superposed image original, the exposure apparatus comprising at least one light source, an element transmissive to actinic radiation emitted from the light source positioned between the light source and the image original, the element capable of holding the image original against the heat-developable light-sensitive recording medium, and at least one interference filter disposed between the light source and the image original during exposure. The invention is further directed to an image forming process using the exposure apparatus.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: February 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Jun Yamaguchi
  • Patent number: 5266986
    Abstract: A system for producing a full color enlarged reproduction of a color transparency or negative on a photographic paper. The system makes use of a continuous tone scanner having a given contrast range to produce enlarged color separation negatives of the original transparency or negative on a continuous tone photographic film. Prior to producing these enlarged color separation negatives, the continuous tone scanner is adjusted to condensate its contrast range to accommodate the photographic paper. The color separation negatives that are so obtained may be used, after development, for producing the requested full color enlarged reproduction on the photographic paper, using a three color printing system to do so. the color print that is so obtained has an excellent definition and color reproduction.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: November 30, 1993
    Inventor: John O. Kobel
  • Patent number: 5189468
    Abstract: By using a thermal development type photosensitive recording medium wherein a latent image is formed in a photocuring composition by exposure, and in which the components related to thermal color development or thermal color bleaching are diffused to form a color picture image within the photosensitive material correponding to the latent image, a picture signal representing a picture is received and an image of the picture is displayed on a liquid crystal panel as a black and white picture image corresponding to the picture signal. The displayed picture image on the liquid crystal panel is exposed on the photosensitive recording medium. Monomer is polymerized in the exposed areas by a photopolymerization initiator. The components related to color development or color bleaching of the unexposed areas are diffused by means of heating the photosensitive recording medium, and a visible picture is formed.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: February 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masamichi Sato, Jun Yamaguchi
  • Patent number: 5075722
    Abstract: The present invention relates to an off-press method for laminating an image sheet to an image receiving substrate and, more particularly, for laminating a plurality of image sheets to the receiving substrate and then laminating a portion of the receiving substrate to a display sheet.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: December 24, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Douglas G. Adolphson, James S. Millar
  • Patent number: 5070411
    Abstract: An image recording apparatus in which a color image of an original document is copied on a sheet of paper using a photosensitive recording medium and three mask members corresponding to red, green and blue color components. The mask members have light shielding images corresponding to color-separated images of the original document. The mask member is superposed on the photosensitive recording medium and the latter is exposed to the color-separated light component through the mask member. To provide a background-white color copies, detected is a transmission rate of the color-separated light component transmitting through the mask member and an amount of the color-separated light component applied through the mask member to the photosensitive recording medium is controlled in response to the detected transmission rate.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: December 3, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Makoto Suzuki
  • Patent number: 5043824
    Abstract: A color image recording apparatus exposes a photosensitive recording medium to light through a succession of mask members produced by a monochromatic laser printer based on colored image information. An exposure unit exposes the photosensitive recording medium and includes a scanning unit driven at a predetermined scanning speed to expose the photosensitive recording medium to light through each of the mask members. An exposure amount setting unit selectively sets light exposures to be applied to the photosensitive recording medium by the scanning unit, and an exposure amount indicating unit selectively indicates exposure amounts to be applied to the photosensitive recording medium by the scanning unit. A data converting unit converts the exposure amount into equivalent scanning speed data to control the scanning speed of the exposure unit.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: August 27, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Makoto Suzuki
  • Patent number: 5043759
    Abstract: A color image recording apparatus includes an exposure device in the housing for exposing a photosensitive recording medium to light through a mask member which has been produced based on image information. A light-transmissive contacting plate for holding the mask member and the photosensitive recording medium closely against each other is disposed in a mask member feed belt and connected to a belt support frame assembly. A positioning unit for positioning the mask member with respect to the photosensitive recording medium comprises a link mechanism for moving the belt support frame assembly. The belt support frame assembly and the housing are operatively connected by the link mechanism. The color image recording apparatus further includes a charging unit for electrically charging at least a surface of the feed belt with which the mask member will be brought into contact. The surface of the feed belt comprises an electrically chargeable, relatively hard coated layer.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: August 27, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Toshio Sakai
  • Patent number: 5019484
    Abstract: A color proof formation method includes the steps of bringing a first color separated film original mounted upon an original mounting table into tight contact with a photosensitive material fixed upon a mounting table, and exposing the film original; separating the photosensitive material mounting table from the original mounting table; replacing or exchanging the first film original upon the original mounting table with a second color separated film original; and bringing the second film original into tight contact with the photosensitive material. The steps are repeatedly performed a predetermined number of times so as to form a color proof.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: May 28, 1991
    Assignee: Konica Corporation
    Inventors: Hitoshi Shimaoka, Shigera Mizuo, Akira Akashi, Miyuki Hosoi
  • Patent number: 5010415
    Abstract: An image forming apparatus for forming a mask member on the basis of a color image information and exposing a photosensitive recording medium to light through the mask member to thereby forming a color image, including a light source for emitting light, at least two color separation filter units for passing the light therethrough and providing transmitted lights having different (broader and narrower) half-widths in spectrum to thereby irradiate the light having a desired half-width in spectrum to the photosensitive recording medium, a position detecting unit for detecting each position of said color separation filter units, and a switching unit for performing a switching operation between the color separation filter units to position desired one of said color separation filter units in an optical path of the light.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: April 23, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Makoto Suzuki
  • Patent number: 4987443
    Abstract: A method and apparatus for forming and imaging press plates whereby the image is exposed on the press plate under conditions which duplicate the manner in which the plate will be mounted to a specific press cylinder so as to insure alignment of the image with the rotational axis of the cylinder and wherein the apparatus includes an exposure device including a platen having a forward beveled end to which is engaged the forward bent end of a preformed press plate and which also includes rear tensioning pins which are engageable through preformed holes formed in the trailing edge of the press plate.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: January 22, 1991
    Inventors: Sterling S. Sawyer, Jr., Myron A. Sawyer
  • Patent number: 4967227
    Abstract: A color image recording device for forming a mask member having a positioning mask thereon and exposing a photosensitive medium through the mask member to light to form a color image on the photosensitive medium, comprising belt for carrying the mask member thereon, two belt supporting rollers spaced at an interval and independently movable in a feeding direction of the mask member and in a vertical direction thereto, stepping motors for moving the belt supporting rollers, a sensor for detecting the position of the positioning mark and a control unit for controlling the stepping motors to register the mask member. According to one aspect of this invention, the stepping motors are controlled by the control unit to change a feeding speed of the mask member at two or more stages in accordance with an output signal from the sensor by switching the excited phases of the stepping motors or by changing an electric power supplied to at least one of the stepping motors.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: October 30, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Makoto Suzuki, Toshio Sakai, Tomoaki Hattori, Izumi Takagi
  • Patent number: 4916482
    Abstract: An apparatus for composing original films, having register marks on desired positions of a base sheet, by positioning and adhering the original films on the base sheet, the apparatus includes a main frame, a positioning and composing table for supporting the base sheets, film cassettes, a position detecting stage on which one of the original films is placed, an original film carrier for transporting the original film from the film cassette to the stage, a working head which transports the original film from the positioning and composing table to a position where an adhesive is applied so that the original film can be adhered to the base sheet, photoelectrical sensors for detecting the register marks of the original film and measuring the position of the film, a sliding frame movable on the main frame in one direction, and a saddle slidable in a cross direction with the sliding frame to support the original film carrier and the working head.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: April 10, 1990
    Assignee: Ltd. Dainippon Screen Mfg. Co.
    Inventors: Fumihiko Nishida, Osami Taniuchi, Hideaki Yonetani, Toru Kawada, Tatsuo Yazaki
  • Patent number: 4821078
    Abstract: An apparatus for composing original films, having register marks on desired positions of a base sheet, by positioning and adhering the original films on the base sheet, the apparatus includes a main frame, a positioning and composing table for supporting the base sheets, film cassettes, a position detecting stage on which one of the original films is placed, an original film carrier for transporting the original film from the film cassette to the stage, a working head which transports the original film from the positioning and composing table to a position where an adhesive is applied so that the original film can be adhered to the base sheet, photoelectrical sensors for detecting the register marks of the original film and measuring the position of the film, a sliding frame movable on the main frame in one direction, and a saddle slidable in a cross direction with the sliding frame to support the original film carrier and the working head.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: April 11, 1989
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Fumihiko Nishida, Osami Taniuchi, Hideaki Yonetani, Toru Kawada, Tatsuo Yazaki
  • Patent number: 4599122
    Abstract: A method and apparatus are presented for taping color separation films on a transparent base film to be used for making a printing plate for reproduction by photoengraving. The method comprises the steps of inputting to a computer taping orders of the separation films and taping positions on the transparent base film at which the separation films are to be taped on the basis of the X-Y coordinates and setting angle determined from punched holes formed in the transparent base film and register marks put on the separation films; arranging the separation films in the order in which they are to be taped on the transparent base film; positioning in sequence the separation films to be taped on the base film to a predetermined point of origin; holding in sequence the separation films positioned at the point of origin; transferring in sequence the separation films to the taping positions previously stored in the computer; and taping in sequence the separation films on the base film.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: July 8, 1986
    Assignee: Nakamura Purosesu Kogei Kabushiki Kaisha
    Inventor: Samuro Nakamura
  • Patent number: 4583849
    Abstract: Methods and apparatus are provided for producing a set of color correction masks on a single piece of masking film, or a set of color separation negatives on a single piece of separation negative film. The set of masks or set of negatives may be exposed so that each entire set may be developed simultaneously under identical development conditions. This is accomplished by determining a development time which provides substantially identical or other desired contrast indices for all of the masks or negatives in a set. The exposure time required for each mask or negative in the set is then determined so that the color components of the exposures will be balanced in the manner desired when the exposures are developed for the predetermined development time. The exposures may then be made in the apparatus provided for that purpose.The apparatus of the invention includes means for rotating a slide transparency and an opaque shield to expose four quadrants of a single piece of film in sequence.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: April 22, 1986
    Inventor: William R. Mielenz
  • Patent number: 4492457
    Abstract: A color correcting device for a color printing light source comprising light receivers arranged so as to be able to receive a light from a light source having passed through light adjusting color filters and a servo-device which compares an output from the light receiver with a reference value and can determine the amount of entrance into the light path of the light adjusting color filter by the compared output, whereby the color of the light source can be always properly corrected without re-adjusting the reference value in spite of the dirtying or deterioration of the light adjusting color filters and the replacement or deterioration of the light source lamp.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: January 8, 1985
    Assignee: Copal Company Limited
    Inventors: Tetsuo Kawada, Yoshio Ozawa
  • Patent number: 4488807
    Abstract: A photographic printer light valve/fader control circuit may convert control data for conventional automatic solenoid driven photographic printer light valves to control data for high speed and reliable electronic photographic printer light valves and faders. The circuit is adapted to retrofit printers designed for existing solenoid driven devices and to convert the color and fade control signals received from a conventional paper tape reader to a form useful for electronic control of the angularly adjustable light valve vanes. The vanes adjust the mix of red, green and blue light in the resulting print and control fades, lap dissolves and the like. The color correction signals, received from the paper tape reader in a quasi-binary format, are converted into a conventional binary format and inputted at the proper time to two digital to analog converters which convert these signals into a form useful in controlling the angle of the vanes.
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: December 18, 1984
    Assignee: Bell & Howell Company
    Inventor: Charles J. Watson
  • Patent number: 4483916
    Abstract: Method of improving the color balance of a multicolor reversal image obtained in a photographic material itself or obtained by a diffusion transfer reversal process in an image receiving material is provided, wherein said method comprises, as illustrated in FIG. 3, the steps of:(1) providing a photographic silver halide material (4) capable of yielding in said material or in an image receiving layer a multicolor reversal image of average gradient of at least 1.8;(2) image-wise exposing said photographic material to or through a multi-color continuous tone original (2) while keeping in the optical path between the original and the photographic material a light-distribution means (3) dividing the light in line-like or dot-like portions over the exposed area of the photographic material,(3) developing and reversal-processing said photographic material, e.g. by dye diffusion transfer-processing, hereby producing a reversal image with average gradient of at most 1.50 and reduced color point spreading.
    Type: Grant
    Filed: February 2, 1983
    Date of Patent: November 20, 1984
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Christiaan G. Thiers
  • Patent number: 4458002
    Abstract: A process for the production of a multicolor reversal image with improved color balance is provided which process comprises the steps of directing incident image light dot- or linewise modulated by a light-distributing means onto a multicolor photographic silver halide emulsion material containing a blue-, a green- and a red-sensitive silver halide emulsion layer and processing said silver halide emulsion layers to form a color reversal image.In the maximum density part of the dots or lines of said light distributing means e.g. a contact screen the ratio of the absorption density for the light corresponding with the spectral sensitivity region of the silver halide emulsion layer being during the exposure most remote from the light-distributing means to the absorption density for the light of the whole visible spectrum (400-700 nm) is higher than the said ratio in any other density part of the dots or lines (see FIG. 1).
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: July 3, 1984
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Wilhelmus Janssens, Christiaan G. Thiers, Wilfried F. Liekens
  • Patent number: 4444489
    Abstract: A photographic copying machine wherein each of the three color filters comprises several triangular sectors which are pivotable about parallel axes into and from the path of copying light between first positions outside of the path, second positions of full overlap with the path and a finite or infinite number of intermediate positions. The pulleys for the sectors of each filter are rotatable by a discrete endless cord or cable which is further trained over a wheel receiving torque from a crank drive designed to move the sectors into the path of the light beam through progressively greater angles during movement from the second toward the first positions and through progressively smaller angles during movement from the first to the second positions under the action of a reversible stepping motor so that the crank drive can compensate for the lack of linearity between the filtering action of the sectors and the extent to which they project into the path of copying light.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: April 24, 1984
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Siegfried Bartel, Ernst Biedermann, Wolfgang Ermer, Erich Nagel
  • Patent number: 4410613
    Abstract: The invention relates to a process and an equipment for making color enlaments in additive method, where the device can be fitted onto the traditional enlargers. By using the solution according to the invention the arrangement of the additive color filters under the lens of the enlarger can be solved in a stable but not containing manner, simultaneously ensuring easy and alternating actuating and integration of the colors of the negative. By means of the comparative process, by using the color-analyzer mask and the properly dark colored reference standards belong to the equipment, the color and density balance of the prints to be enlarged can be adjusted by the way of one single trial development, independent of the individual subjective color perceptional ability.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: October 18, 1983
    Assignee: Ofotert Optikai Finommechanikai es Fotocikkeket Ertekesito Vallalat
    Inventor: Miklos Soskuthy
  • Patent number: 4397545
    Abstract: An exposure control method in which an exposure value for a designated or particular original picture is determined using in combination photometric values or exposure controlling characteristic values of a designated original picture and photometric values or exposure controlling characteristic values of at least one other original picture which is weighted with relativity to the designated original picture. With this method, pictures of similar or continuous scenes are reproduced with a uniform density and color. The method may be applied to photographic film, particularly, motion picture films, VTR photographing operations or picture printing operations.
    Type: Grant
    Filed: April 29, 1981
    Date of Patent: August 9, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takaaki Terashita
  • Patent number: 4394089
    Abstract: A color photoprinter having a scanning light source and automatic control of contrast excursion limits and exposure level is disclosed. The printer is particularly well suited to contact printing with opaque image receiving materials. A prescan of the original photographic transparency, only, is made to determine the initial exposure level and contrast excursion limits to be expected on the opaque receiving material, and to establish the required automatic exposure and dodging control signals. The original is rescanned to generate signals which represent an unsharp, luminous, contrast controlling mask. These signals are retained in a memory, such as an image storage tube. The opaque image receiving material is then moved into intimate contact with the original for the actual exposing scan, which takes place with the unsharp luminous mask electronically superimposed on the scanning light source, in order to provide automatic contrast and exposure level control of the image during the printing step.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: July 19, 1983
    Assignee: LogEtronics, Inc.
    Inventors: Walter L. McIntosh, John N. Street
  • Patent number: 4385828
    Abstract: The method disclosed enables one to transfer an image from a translucent material to a photosensitized material. Initially a translucent material which includes an image is placed between an unexposed sensitized material, such as a film negative, and a source of light. The source of light is energized for a predetermined time interval to pass light through the translucent material onto the negative to transfer the image from the translucent material to the film negative. The film negative can then be used to expose a printing press plate, such as a lithographic plate. The method can be used to transfer either black and white or color line work, pre-screened image material and either black and white or color image material to one or more film negatives or sheets of sensitized material.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: May 31, 1983
    Inventor: Leland T. Prentice
  • Patent number: 4358195
    Abstract: An electrophotographic color proofing apparatus is provided including a copyboard carrying a color separated positive and capable of being positioned into intimate contact with a charged photoconductive coating of an electrophotographic member. The engaged members are exposed to light, discharging the coating in increments to form a latent electrostatic image thereon. The copyboard is withdrawn and the exposed electrophotographic member rotated 180 degrees facing toward a toning assembly consisting of a row of plural toning units, each carrying a different color toner and arranged in line for linear translation below the exposed electrophotographic member with a selected one toning unit thereof being activated to apply a selected color toner to the latent electrostatic image. The toned member again is revolved 180 degrees.
    Type: Grant
    Filed: April 11, 1980
    Date of Patent: November 9, 1982
    Assignee: Coulter Systems Corporation
    Inventors: Manfred R. Kuehnle, Gordon Orme, Joseph L. Brophy
  • Patent number: 4355888
    Abstract: This invention is directed to the separation of electromagnetic radiation into a plurality of selective wave length bands or colors. The term color separation, broadly applied, is meant to be the separation of primary and secondary or complementary wave lengths or colors for the purpose of geometric imaging. Such color separation is achieved, substantially, instantaneously, without the loss of wave length energy or color intensity by a novel means of reflection, transmission and color filtration. The separated colors or selective wave length bands can be, substantially, instantaneously, recreated as a geometric image or can be recorded for later recreation as a geometric image such as by photographic or movie films or by tapes; lithographic plates or engravings. Also, the separated colors or selective wave length bands can be used in making printng plates, directly, without using film.
    Type: Grant
    Filed: September 24, 1973
    Date of Patent: October 26, 1982
    Inventor: Robert E. Pearson
  • Patent number: 4341465
    Abstract: A subtractive photographic printer is capable of providing extremely short exposure time by coordinating the operation of a shutter and color filters. The shutter is normally positioned in the light path, and is driven out of the light path at the beginning of an exposure cycle. The exposure in each color channel is terminated by driving the color filter associated with that color channel into the light path in a direction which is essentially the same as the direction in which the shutter was driven out of the light path. In addition, the filter is driven into the light path at essentially the same rate at which the shutter was driven out of the path. The exposure time for the color channel is determined by the time delay between actuation of the shutter drive and actuation of the filter drive, since the shutter and the filter move in the same direction and at essentially the same rate.
    Type: Grant
    Filed: September 11, 1980
    Date of Patent: July 27, 1982
    Assignee: Pako Corporation
    Inventor: James F. Stewart
  • Patent number: 4294537
    Abstract: A photographic reprint system utilizes film segments or strips which are attached to an elongated tab. Information relating to the printing of each frame, including the desired print quantity, the color balance setup to be used in printing the frame, and exposure corrections used in printing that frame are stored sequentially in a storage medium such as a floppy disk. After the tab with attached film segments has been prepared, it is taken to a photographic printer where the tab with attached film segments is advanced sequentially and the film frames are printed. This printing is based upon information which is retrieved sequentially from the storage medium. The photographic printer includes displays for displaying the print quantity, color balance setup, and exposure corrections for each frame. In addition, the printer includes a display for displaying the order number, strip number, and frame number corresponding to the information retrieved from the storage medium.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: October 13, 1981
    Assignee: Pako Corporation
    Inventors: Ronald C. Laska, Janis Pone
  • Patent number: 4264192
    Abstract: A system for prestripping alignment of color separations providing automatic registration of same on stripping, includes provision for using a set of carrier-related holes in a first color separation for establishing position of the first color separation on a hole-transfer table, and then for using fiducial indicia on the first color separation to establish position of a sensor system which in turn is used in conjunction with corresponding fiducial indicia on each of the remaining color separations to establish location for corresponding carrier-related holes which are then punched in each color separation using the hole transfer table.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: April 28, 1981
    Inventor: Maurice R. Robb
  • Patent number: 4260244
    Abstract: A photographic reprint system utilizes an elongated paper tab to which film segments or strips are attached. Information relating to the printing of each film frame of the segments attached to the tab is stored sequentially in a storage medium such as a floppy disk. This information includes the selected color balance setup and a film size or format code indicating the size of the film segment. After the tab with attached film segments has been prepared, it is taken to a photographic printer, where the tab with the attached film segments is advanced sequentially and the negatives are printed. The printing is based upon information which is sequentially retrieved from the storage medium. Among the information contained in the selected color balance setup is a film size code indicating the size of film for which the color balance setup is used. The photographic printer compares the film size code from the selected color balance setup with the film size code retrieved from the storage medium.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: April 7, 1981
    Assignee: Pako Corporation
    Inventors: Ronald C. Laska, Janis Pone
  • Patent number: 4231654
    Abstract: A controller for providing accurate analysis of color and density of the light from any color enlarger or the like. The controller is an on-easel analyzer having built-in automatic timer controls for controlling exposures from point 1 seconds to 99.9 seconds. Density and color filtration data provided by video or other off-easel analyzers are manually entered into digital switches on a control panel of the controller or such data can be automatically programmed in the controller through the use of punched paper tape or the like. The controller includes null indicator means to indicate a balance when the enlarger f/stop and color balance are adjusted. The controller may be programmed in units as small as 1 cc in color filtration ranges from 0 to 99 cc and density ranged from 0 to 199 cc. Controller also has a photo-sensitive probe, slope controls, a digital emulsion memory system and the controller can operate with substantially any color enlarger.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: November 4, 1980
    Assignee: Michael E. Gorski
    Inventor: William H. Prickett
  • Patent number: 4217648
    Abstract: The densities of neighboring unit areas of a color photographic negative are measured in each of the primary colors and the results of measurements are compared with each other to ascertain the dimensions and boundaries of negative portions which exhibit dominant colors. Each such portion is considered in the selection of the amounts of copying light to the extent corresponding to a single unit area. The comparison is carried out by a computer which compares the results of measurements of neighboring unit areas, as considered in and at right angles to the direction of movement of the negative relative to the monitoring elements. A result of measurement is disregarded if it deviates from the result of measurement of a neighboring unit area by less than a preselected reference value which may but need not be different for each primary color.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: August 12, 1980
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Siegfried Thurm, Konrad Bunge
  • Patent number: 4192605
    Abstract: Color prints from transparencies which constitute frames or sections of universal film are made on printing paper by ascertaining the quotient or difference of integrated transmittance of the transparencies in green and red light, comparing the signal which denotes such ratio with a variable reference signal whereby the resulting comparison signal denotes the color temperature of light by which the respective transparency was exposed, and carrying out color corrections to depart from correction to neutral gray in dependency upon whether the ascertained color temperature denotes exposure in daylight or artificial light. The value of the reference signal is changed in such a way that the intensity of the ratio-designating signal which is necessary for generation of a comparison signal denoting the switchover point between the classification of transparencies into those respectively exposed by daylight and artificial light is lowered when the overall density of the transparency is lower and vice versa.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: March 11, 1980
    Assignee: AGFA-Gevert, A.G.
    Inventors: Berthold Fergg, Gunter Findeis, Wolfgang Zahn
  • Patent number: 4189227
    Abstract: An illuminating system is provided with a source of light for generating a beam of light having a ratio of energy distribution at three wave length ranges that differ from the spectral sensitivity of photographic copying material at those three wave length ranges. Color filters are inserted into the beam of light to a depth for compensating for the disparity between the energy distribution and spectral sensitivity. One of the filters is of a filter color that influences the wave length ranges having the highest energy levels in excess of a desired energy; a second filter of a second filter color influences only the wave length range with the largest energy excess over the desired energy level.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: February 19, 1980
    Assignee: Durst AG Fabrik Fototechnischer Apparate
    Inventor: Siegfried Barbieri
  • Patent number: RE35537
    Abstract: A color proof formation method includes the steps of bringing a first color separated film original mounted upon an original mounting table into tight contact with a photosensitive material fixed upon a mounting table, and exposing the film original; separating the photosensitive material mounting table from the original mounting table; replacing or exchanging the first film original upon the original mounting table with a second color separated film original; and bringing the second film original into tight contact with the photosensitive material. The steps are repeatedly performed a predetermined number of times so as to form a color proof.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: June 17, 1997
    Assignee: Konica Corporation
    Inventors: Hitoshi Shimaoka, Shigeru Mizuo, Akira Akashi, Miyuki Hosoi