Patent application number | Description | Published |
20090147330 | Laser processing apparatus - A laser processing apparatus includes a laser source ( | 06-11-2009 |
20110106472 | SPECTROMETRIC MEASUREMENT APPARATUS, IMAGE EVALUATION APPARATUS, AND IMAGE FORMING APPARATUS - A spectrometric measurement apparatus includes a light radiation unit for radiating light onto a medium; a hole array including openings arranged one-dimensionally for transmitting diffusion light from the medium; an imaging optical system configured to focus an image from the hole array; a diffraction element configured to diffract the light for focusing the image; and a light receiving unit including pixels arranged one-dimensionally configured to receive the light that has been dispersed by the diffraction element and spectrometric sensors each corresponding to a predetermined number of the pixels. The light transmitted through each of the openings of the hole array is dispersed by the diffraction element, and then the light enters the pixels so that spectral properties of the diffusion light are acquired. The structure of the diffraction element includes variations that are formed in accordance with the height of the image that is focused by the imaging optical system. | 05-05-2011 |
20110222056 | SPECTROSCOPIC CHARACTERISTICS ACQUISITION UNIT, IMAGE EVALUATION UNIT, AND IMAGE FORMING APPARATUS - A spectroscopic characteristics acquisition unit includes a light emitting unit to illuminate a measurement target; a lens array including lenses to receive reflected light reflected from the measurement target; a light blocking member having a pinhole array including openings; a focusing unit to focus light coming from the pinhole array; a diffraction unit to diffract the light to different directions depending on wavelength of light received by the focusing unit; and a light receiving unit to receive the reflected light diffracted by the diffraction unit. The light receiving unit includes a spectroscopic sensor array having spectroscopy sensors including pixels. Each of the lenses constituting the lens array corresponds to one of the openings of the pinhole array. The numerical aperture NA of the lens in the arrangement direction in the lens array satisfies the formula NA>sin(θmax) with respect to the maximum angle of view θmax of the focusing unit. | 09-15-2011 |
20110273523 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - A disclosed image forming apparatus includes a recording head having a nozzle capable of ejecting inductive ink including water, a first intermediate transfer body having a conductive surface on which an ink image is to be formed by temporarily forming a liquid-column bridge between the conductive surface and the nozzle, the liquid-column bridge being made of the inductive ink, a voltage application unit applying a voltage between the inductive ink and the conductive surface so that water included in the liquid-column bridge is electrolyzed, and a transfer unit transferring an ink image formed on the first intermediate transfer body to a recording medium. | 11-10-2011 |
20110299104 | SPECTRAL CHARACTERISTIC OBTAINING APPARATUS, IMAGE EVALUATION APPARATUS AND IMAGE FORMING APPARATUS - A spectral characteristic obtaining apparatus including a light irradiation unit configured to emit light onto a reading object; a spectroscopic unit configured to separate at least a part of diffused reflected light from the light emitted onto the reading object by the light irradiation unit into a spectrum; and a light receiving unit configured to receive the diffused reflected light separated into the spectrum by the spectroscopic unit and to obtain a spectral characteristic. In at least one example embodiment, the light receiving unit is configured to be a spectroscopic sensor array including plural spectroscopic sensors arranged in a direction, and the spectroscopic sensors include a predetermined number of pixels arranged in the direction to receive lights with different spectral characteristics from each other. | 12-08-2011 |
20110317149 | SPECTRAL CHARACTERISTICS ESTIMATION DEVICE, IMAGE FORMING APPARATUS HAVING THE SAME, AND SPECTRAL CHARACTERISTICS ESTIMATION METHOD - Spectral characteristics of an object is estimated using an extended sensor response, which includes a product of at least two light intensity signals whose wavelength ranges are partially overlapped with each other. | 12-29-2011 |
20130057628 | IMAGE FORMING APPARATUS AND RECORDING LIQUID - An image forming apparatus with a voltage applying unit between a recording head and an intermediate transfer drum is capable of activating polyvalent metal ions inactivated in advance in jetted recording liquid without liquid activators independent of the recording liquid for sufficient flocculation on the drum. When the jetted recording liquid temporarily bridges the head and the drum, electrolysis of the recording liquid by the voltage applied instantly leads to generation of hydrogen ions on the drum, which triggers a sequence of reactions in the recording liquid of activation of polyvalent metal ions, cross-link between the activated polyvalent metal ions and anionic polymer, and increase in viscosity on the drum. | 03-07-2013 |
20130063723 | SPECTRAL CHARACTERISTIC ACQUIRING APPARATUS, SPECTRAL CHARACTERISTIC ACQUIRING METHOD AND IMAGE EVALUATING APPARATUS - A spectral characteristic acquiring apparatus is provided which includes: an area dividing part; a spectrum separating part; a light receiving part; and a calculating part, wherein the calculating part includes a transformation matrix storing part that stores a transformation matrix used for calculating the spectral characteristic corresponding to electrical signals of a first diffraction pattern group including two or more adjacent diffraction patterns, and a spectral characteristic calculating part that calculates, based on the electrical signals of the first diffraction pattern group and the corresponding transformation matrix, the spectral characteristic at the locations of the image carrying medium corresponding to the apertures of the first diffraction pattern group. | 03-14-2013 |
20130093810 | IMAGE FORMING DEVICE, AND IMAGE FORMING METHOD - An image forming device includes a head including a nozzle that discharges an electrically-conductive recording liquid in accordance with a driving signal; an intermediate transfer body on which the recording liquid discharged by the head is applied; a voltage apply unit that applies a voltage between the intermediate transfer body and the head, so as to decompose the electrically-conductive recording liquid by electrolysis; a transfer unit that transfers an image supported on the intermediate transfer body onto a recording material; and a discharging control unit that generates the driving signal that causes the electrically-conductive recording liquid to be discharged from the nozzle. The discharging control unit generates the driving signal so that a position of a meniscus is placed outside the nozzle during a time interval in which the recording liquid temporarily bridges between the head and the intermediate transfer body. | 04-18-2013 |
20130182251 | SPECTRAL CHARACTERISTIC MEASURING DEVICE AND IMAGE FORMING APPARATUS - A spectral characteristic measuring device includes an illuminating unit that illuminates a medium; a light dividing unit that divides reflection light from the medium into reflection light beams; a first imaging unit that includes first lenses and second lenses arranged alternately in a staggered pattern and focuses the respective reflection light beams; a diffraction unit that includes a first diffraction region and a second diffraction region and diffracts the focused reflection light beams to form diffraction images; and a light receiving unit that includes plural pixels for receiving the diffraction images. The reflection light beams focused by the first lenses enter the first diffraction region to form first diffraction images, the reflection light beams focused by the second lenses enter the second diffraction region to form second diffraction images, and the first and second diffraction images are arranged alternately on the light receiving unit in a pixel arrangement direction. | 07-18-2013 |
20130182256 | APPARATUS AND METHOD FOR OBTAINING SPECTRAL CHARACTERISTICS - A spectral characteristic obtaining apparatus includes a detection unit detecting light quantities in plural wavelength bands from a measurement target, a storage unit storing pre-obtained spectral characteristics of the measurement target, a calculation unit calculating a primary transformation matrix from the light quantities and the pre-obtained spectral characteristics of at least one reference sample and a secondary transformation matrix from one of the pre-obtained spectral characteristics corresponding to a primary wavelength band and another one of the pre-obtained spectral characteristics corresponding to a secondary wavelength band, an estimation unit estimating the spectral characteristics of the measurement target by performing a primary estimation on the light quantities in the plural wavelength bands by using the primary transformation matrix, performing a secondary estimation on a result of the primary estimation by using the secondary transformation matrix, and compositing a result of the secondary estimation with the result of the primary estimation. | 07-18-2013 |
20130235249 | SPECTROMETER, AND IMAGE EVALUATING UNIT AND IMAGE FORMING DEVICE INCORPORATING THE SAME - A spectrometer includes a light source to project a light beam to a target object, a spectral element to disperse the light beam reflected by the target object and including a diffraction element to diffract the light beam, and a light receiving element to receive, at pixels, light beams with different spectral characteristics from each other dispersed by the spectral element, wherein the diffraction element and the light receiving element are integrally formed. | 09-12-2013 |
20130235376 | SPECTROMETER, AND IMAGE EVALUATING UNIT AND IMAGE FORMING DEVICE INCORPORATING THE SAME - A spectrometer includes a light source to project a light beam to a target object, an optical element including a plurality of apertures through which the light beam reflected by the target object transmits, a diffraction element to form diffracted images from a plurality of light beams having transmitted through the optical element, and a light receiving element to receive the diffracted images formed by the diffraction element and including an optical shield to block a diffracted image other than a certain-order diffracted image. | 09-12-2013 |
20140071196 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - Disclosed is an image forming apparatus including a head configured to discharge an aqueous recording liquid onto a recording medium; and a coating unit configured to apply a process liquid onto the recording medium, wherein the process liquid is formed by emulsifying, by a first surfactant, water including a water-soluble polymer and a low polarity solvent which is not compatible with the water, wherein the water and the low polarity solvent are emulsified as a W/O emulsion in which the water is in a dispersed phase and the low polarity solvent is in a continuous phase. | 03-13-2014 |
20140240422 | IMAGE FORMING APPARATUS - Using an intermediate transfer body onto which a conductive recording liquid containing water that is ejected by heads is provided; and a potential applying unit which applies a potential which can electrolyze the water within the conductive recording liquid which is ejected from the heads and which temporarily bridges between the heads and the intermediate transfer body, the potential applying unit applies a potential between the intermediate transfer body and electrodes which are in contact with the recording liquid in supplying units which supply the recording liquid to the heads. | 08-28-2014 |