Class / Patent application number | Description | Number of patent applications / Date published |
347232000 | Multicolor | 27 |
20080204541 | Aperture stop in an image projection arrangement for preserving color fidelity over an image - A lightweight, compact image projection module has a laser assembly for emitting a plurality of laser beams of different wavelengths, an optical assembly for focusing and nearly collinearly arranging the laser beams to form a composite beam, a scanner for sweeping the composite beam in a pattern of scan lines, each scan line having a number of pixels, and a controller for causing selected pixels to be illuminated, and rendered visible, by the composite beam to produce the image. An aperture stop located between the laser assembly and the scanner, limits a cross-sectional dimension of at least one of the laser beams to below a prescribed level to preserve color fidelity over the image. | 08-28-2008 |
20080218580 | Image forming method and image forming apparatus - Positioning displacement characteristics of each of scanning beams are obtained in advance. The positioning displacement characteristics is indicative of a relation between temperature and a displacement amount by which each of the scanning beams is displaced in a sub-scanning direction. A displacement control is performed based on the positioning displacement characteristics by shifting the positioning displacement characteristics in a direction opposite to that of a trend of the positioning displacement characteristics within a pixel pitch. | 09-11-2008 |
20080278564 | Record Carrier and Method of Recording an Image - A record carrier ( | 11-13-2008 |
20090058979 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes a light source, a pre-deflection optical system, a polygon mirror, and a scanning optical system. The pre-deflection optical system includes a coupling lens and a diffraction lens. A light output surface of the coupling lens is a phase shifting surface, while a light output surface of the diffraction lens is a diffractive surface. The absolute value of the focal length of the diffraction lens is longer than the absolute focal length of the coupling lens. | 03-05-2009 |
20090073251 | FULL-COLOR DIRECT LASER LABELING ARRANGEMENTS AND METHODS - A full-color direct disc labeling method that solves the monochromatic limitation associated with current direct disc labeling techniques. The techniques disclosed herein provide a unique, cost-effective method of implementing full-color direct disc labeling in the emerging class of blue laser optical drive recorders, known by trade names such as Blu-ray and HD DVD. | 03-19-2009 |
20090128615 | Printing system - A substrate-marking system comprises a substrate-marking apparatus and a substrate which is susceptible, or includes an additive which is susceptible, to changing colour upon irradiation. The apparatus comprises a laser diode for emitting a beam of laser light and a galvanometer for aligning a desired point on the substrate with the laser beam such that the laser beam irradiates the desired point thus causing the additive, in use, to change colour at the point. | 05-21-2009 |
20090315969 | Method for Creating an Image on a Support - The invention relates to a method of creating an image, such as a printed and/or customised graphic element, on a support having regions that can be activated by an activator. A support is used that includes at least a plurality of regions that can reveal a colour under the effect of an activator. These regions are offset in relation to one another when observed from the activator. The colour is only activated in a localised manner on the aforementioned regions. | 12-24-2009 |
20090322849 | USE OF REGISTRATION MARKS AND A LINEAR ARRAY SENSOR FOR IN-SITU RASTER OUTPUT SCANNER SCAN LINE NONLINEARITY DETECTION - A method for detecting, in-situ, a cross-process linearity error in an image printing system that prints on an image bearing surface movable in the process direction is provided. The method includes placing marking material to form of a row of registration marks on the image bearing surface, detecting a position in a cross-process direction of each registration mark in the row using a linear array sensor that extends in the cross-process direction, and determining a correction function with a processor using the positions of the registration marks as detected by the linear array sensor to compensate for an error in the positions in the cross-process direction of the registration marks. The row of registration marks extends in a cross-process direction transverse to the process direction. | 12-31-2009 |
20100045766 | BEAM-SPOT POSITION COMPENSATION METHOD, OPTICAL SCANNING DEVICE, AND MULTI-COLOR IMAGE FORMING DEVICE - In a beam-spot position compensation method for use in an optical scanning device which scans a surface of a photosensitive medium by a light beam emitted by a light source, a plurality of sections are defined by dividing a scanning region on the scanned surface. An emission timing of the light beam for every section is adjusted so that a spacing between beam-spot positions corresponding to pixels of start and end of each section is changed by a predetermined amount. The sparseness or denseness of beam-spot position spacings of the plurality of sections in the whole scanning region is compensated. | 02-25-2010 |
20100238260 | BIDIRECTIONAL IMAGING WITH VARYING INTENSITIES - A method is provided for forming an image on a media while the media is moved relative to an imaging head. The media can include a pattern of registration sub-regions. The image can include patterns of features, such as color filter features or colored illumination sources which can be registered with the pattern of registration sub-regions. The imaging method can include operating an imaging head to emit a plurality of independently-controllable radiation beams while scanning over media to form an image on the media. The imaging channel of the imaging head can be operated to emit a radiation beam having a first intensity while scanning in a first direction over the media during a first scan and to emit a radiation beam having a second, different intensity while scanning in a second, opposite direction over the media during a second scan. | 09-23-2010 |
20110012983 | Optical scanning device and image forming apparatus - An optical scanning device includes a light source, a deflector, and an optical system including an elongated optical element that focuses deflected luminous flux on a surface of a medium to be scanned. The optical element is supported by a first elastic member and reinforced by a reinforcing member arranged outside a beam effective range along a length of the optical element. The optical element is pressed by a pressing member in a pressing direction orthogonal to a deflection direction, and biased by a second elastic member in a direction opposite to the pressing direction. The pressing member and the second elastic member control a posture of the optical element at a substantially central part in a main scanning direction. | 01-20-2011 |
20110090298 | PERSONALIZATION OF PHYSICAL MEDIA BY SELECTIVELY REVEALING AND HIDING PRE-PRINTED COLOR PIXELS - Personalization of identity card by producing a color image thereon by selectively exposing photon-sensitive layers on the card to change between transparent and opaque thereby selectively revealing opaque colors from the photon-sensitive layer or from a printed substrate. Other systems and methods are disclosed. | 04-21-2011 |
20110228035 | SURFACE-EMITTING LASER MODULE, OPTICAL SCANNER DEVICE, AND IMAGE FORMING APPARATUS - A disclosed surface-emitting laser module includes a surface-emitting laser formed on a substrate to emit light perpendicular to its surface, a package including a recess portion in which the substrate having the surface-emitting laser is arranged, and a transparent substrate arranged to cover the recess portion of the package and the substrate having the surface-emitting laser such that the transparent substrate and the package are connected on a light emitting side of the surface-emitting laser. In the surface-emitting laser module, a high reflectance region and a low reflectance region are formed within a region enclosed by an electrode on an upper part of a mesa of the surface-emitting laser, and the transparent substrate is slanted to the surface of the substrate having the surface-emitting laser in a polarization direction of the light emitted from the surface-emitting laser determined by the high reflectance region and the low reflectance region. | 09-22-2011 |
20120044316 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device that optically scans a surface to be scanned in a main-scanning direction includes a light source; an optical deflector that has a reflective surface rotating on an axis of rotation of the reflective surface and deflects a light beam emitted from the light source; a scanning optical system that guides the light beam deflected by the optical deflector to the surface to be scanned; and a flow guide member that is provided near the optical deflector and turns back a flow of air generated by rotation of the reflective surface toward the reflective surface. | 02-23-2012 |
20120069126 | IMAGE FORMING APPARATUS AND METHOD OF THE SAME - According to one embodiment, a laser controller generates a signal which corresponds to an output signal of a laser beam detection sensor before detecting an abnormality, in which the abnormality is detected, in a pseudo manner, on the basis of an output signal of a laser beam detection sensor in which the abnormality is not detected. In addition, the laser controller controls a laser unit which corresponds to the laser beam detection sensor in which the abnormality is detected, according to the generated signal. | 03-22-2012 |
20120300010 | OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, OPTICAL WRITING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - An optical writing device stores pieces of dithering information indicating dithering patterns whose densities are different, each piece of dithering information including pieces of identification information associated with pixels of the corresponding dithering pattern, and stores pieces of pixel setting information in which pieces of colored/colorless information indicating each of the pixels is colored or colorless are associated with the pieces of identification information, the pieces of colored/colorless information being set based on a resolution of a light source for forming an electrostatic latent image. The optical writing device also includes a control unit configured to arrange the same dithering patterns in a way that the dithering patterns form a pattern with a given size, and cause the light source to emit light based on information generated by setting the pixels of each of the same dithering patterns to be colored or colorless in accordance with the pixel setting information. | 11-29-2012 |
20130050389 | INKLESS PRINTING APPARATUS - A substrate marking apparatus for use in combination with a substrate comprising a multi-colour change diacetylene compound is disclosed. The substrate marking apparatus comprises: at least two radiation sources operable to emit radiation of different wavelengths, optical transformation elements and a control system. The control system takes digital file information and converts this to a set of emission instructions for the radiation sources. The radiation sources are then applied to the substrate in sequence and intensity determined by the control system such that the substrate is activated to change from a colourless state to any one of a range of multiple permanent colours. | 02-28-2013 |
20130235145 | COLOUR LASER MARKING METHODS OF SECURITY DOCUMENT PRECURSORS - A method of colour laser marking a security document precursor including, in order, at least: a) a polymeric foil; b) at least one colourless colour forming layer for generating a colour different from black containing at least an infrared absorber, a colour forming compound and a polymeric binder; and c) either a lasermarkable polymeric support or a lasermarkable layer for generating a black colour; comprising the steps of: (1) laser marking a colour different from black in the colourless colour forming layer with an infrared laser used in continuous wave mode; and (2) laser marking a black colour by carbonization in the lasermarkable polymeric support or the lasermarkable layer with the same infrared laser used in a pulsed mode; and wherein at least one of the polymeric foil and the lasermarkable polymeric support is transparent for the infrared light of the infrared laser. | 09-12-2013 |
20130314486 | METHOD AND DEVICE FOR PRODUCING COLOUR IMAGES BY WAY OF A UV LASER ON PIGMENTED SUBSTRATES, AND PRODUCTS PRODUCED AS A RESULT - A method is described for producing a character, pattern, symbol and/or image ( | 11-28-2013 |
20130328995 | METHOD FOR FORMING A COLOUR LASER IMAGE WITH HIGH REFLECTIVE YIELD AND DOCUMENT IN WHICH A COLOUR LASER IMAGE IS THUS PRODUCED - A method for forming and a document having a colour laser image with high reflective yield, which comprises a sheet of laserable material, sub-pixels in primary colours, the laser beam via carbonization exposing grey levels of the colour image, and a substrate. The whole is laminated in various embodiments. The sub-pixels in various embodiments are separated by transparent regions which increase reflectivity and reinforce the white component of the personalised image. Layers of reflective varnish can reinforce reflectivity. | 12-12-2013 |
20140028775 | METHOD FOR PRODUCING A COLOUR LASER IMAGE THAT CAN BE OBSERVED IN THREE DIMENSIONS AND DOCUMENT ON WHICH A COLOUR LASER IMAGE THAT CAN BE OBSERVED IN THREE DIMENSIONS IS PRODUCED - Disclosed are examples of methods and documents of a colour laser image observable in three dimensions, which comprises a laserable protective sheet, an array of lenses, coloured sub-pixels in column form, wherein a laser beam causes the grey levels to appear in two colour laser images observable in three dimensions via stereoscopic effect, and a substrate. The whole, in various implementations, may be laminated. The axes of the columns of sub-pixels and of the lenses may be perpendicular. The laser beam may scan the sub-pixels along the axis of the lenses, in various embodiments. | 01-30-2014 |
20140160220 | METHOD AND DEVICE FOR PRODUCING COLOR IMAGES ON SUBSTRATES CONTAINING COLOR BODIES AND PRODUCTS PRODUCED THEREBY - What is described is a method for producing a sign, pattern, symbol and/or image ( | 06-12-2014 |
20140160221 | AN INKLESS PRINTING METHOD - The present invention relates to a method of marking a substrate that comprises a color forming material, comprising the steps of: activating a region of the substrate so as to transform it from an inactive, low reactive state to an active, high reactive state; irradiating a part of the activated region with an initial color changing radiation to effect an initial color change to a first color; and irradiating a part of the substrate that has been changed to the first color with a high power density beam of visible electromagnetic radiation to effect a further color change of the irradiated region to a second color. | 06-12-2014 |
20140192130 | LASER REACTIVE MEDIA AND APPARATUS AND METHOD FOR WRITING AN IMAGE ONTO SUCH MEDIA - An optical disk label writing method for writing a label on an optical disc uses a similar writing operation to that used to write data to the disc. The disc has a label side including a laser reactive material for forming the label image, and a tracking format that can be tracked by a writing laser in a similar way to a writing operation. A computer program is provided for converting a label image to a disk image file for writing to the label side. | 07-10-2014 |
20140232810 | Colour Laser Marking Methods of Security Document Precursors - A method of colour laser marking a security document precursor including at least: a transparent biaxially stretched polyethylene terephthalate foil; at least one colourless colour forming layer for generating a colour different from black containing at least an infrared absorber a colour forming compound and a polymeric binder; and a laser markable polymeric support or a laser markable layer for generating a black colour; comprising the steps of:
| 08-21-2014 |
20140267538 | IMAGE FORMING APPARATUS - An image forming apparatus includes image carriers for four fundamental colors of black, cyan, magenta, and yellow, and for an auxiliary color, and three optical scanning devices. A first optical scanning device includes two light sources for the black color and another fundamental color, a first deflector, and a first housing. A second optical scanning device includes two light sources for other two fundamental colors, a second deflector, and a second housing. A third optical scanning device includes a light source for the auxiliary color, a third deflector, a third housing, and one or more reflecting mirrors. The light source for the auxiliary color is disposed closer to the third deflector with the one or more reflecting mirrors to turn an optical path therebetween while maintaining an optical path length thereof. The optical paths for the auxiliary color and for the black color have identical light utilization efficiency. | 09-18-2014 |
20140354755 | Method For Color Marking Metallic Surfaces - A method of color marking a metal or metal-plated part is described involving setting at least one laser parameter of a laser, such as the power, scan speed, Q-switch, spot size, line separation, and scan repetition, and then energizing a metal containing surface layer of the part using the laser to change the color reflected by the surface layer. | 12-04-2014 |