Patent application number | Description | Published |
20080278773 | IMAGE READING APPARATUS - An image reading apparatus includes an integral scanning optical unit in which a light source device for illuminating an original placed on an original table, a plurality of mirrors for reflecting a light beam from the original and an imaging optical system for imaging the light beam reflected by the mirrors, upon a reading device, are integrally accommodated, wherein at least one mirror is so configured that the light beam is incident thereon twice or more, wherein, in a sub-scan section, reflection surfaces of the mirrors are disposed in a space at an original-reading-position side of a light entrance surface of the imaging optical system, and wherein the reflection surface of a mirror disposed at a position optically closest to the light entrance surface of the imaging optical system is placed at a position furthermost from the original table with respect to a direction of a normal thereto, as compared with the reflection surfaces of the remaining mirrors. | 11-13-2008 |
20090080038 | LIGHT GUIDE OPTICAL SYSTEM, DOCUMENT ILLUMINATING DEVICE USING SAME, AND IMAGE READING APPARATUS USING SAME - A light guide optical system guides a plurality of light beams emitted from a plurality of point light sources arranged linearly to a predetermined surface. The light guide optical system has a plurality of optical surfaces arranged periodically in the arrangement direction of the plurality of point light sources. Each of the plurality of optical surfaces has power in the arrangement direction of the plurality of point light sources. | 03-26-2009 |
20090231641 | IMAGE READING APPARATUS AND METHOD OF CONTROLLING THE SAME - An image reading apparatus includes a reading system having a plurality of line sensors extending in a main-scan direction, an imaging optical system for imaging, on the line sensors, imagewise information of an original surface, the imaging optical system including at least one anamorphic optical surface having different powers in the main-scan direction and the sub-scan direction, a scanning system for relatively scanning the original surface and the reading means in a sub-scan direction to read the imagewise information of the original surface, and an image correcting system for correcting imagewise information of the original surface read by each line sensor, on the basis of an imaging-position-deviation correction amount of an image in the sub-scan direction corresponding to a reading position in the main-scan direction, calculated based on an imaging position deviation amount of an image in the sub-scan direction corresponding to the reading position in the main-scan direction upon the line sensors, as calculated from optical design value of the imaging optical system. | 09-17-2009 |
20110090547 | INSPECTION METHOD AND INSPECTION APPARATUS FOR AN IMAGE READING APPARATUS - An inspection method for an image reading apparatus where image information of an original is imaged on light receiving element lines arranged in a main scanning direction to read the information on different colors. The method includes: acquiring a first color misregistration from image information based on a first striped pattern located at a position optically equivalent to a surface of the original with respect to the light receiving element lines, the first pattern having white and black lines aligned, and having longitudinal directions of the white and black lines aligned in a sub-scanning direction; acquiring a second color misregistration from image information based on a second striped pattern having white and black lines aligned, and having longitudinal directions of the white and black lines aligned at an angle from the main scanning direction; and calculating a color misregistration in the sub-scanning direction based on the measured color misregistrations. | 04-21-2011 |
20110279813 | ALIGNMENT METHOD FOR AN IMAGE READING APPARATUS - Provided is an alignment method for an image reading apparatus including: a light source unit illuminating an original on an original table; a photoelectric conversion element for converting an optical image into an electric signal; and an imaging optical system for imaging, onto the photoelectric conversion element, a light beam from the illuminated original. The imaging optical system includes: a first optical element, arranged inside a first lens barrel, and having an optical surface that is rotationally symmetric about an optical axis; and a second optical element, arranged on an optical path between the first lens barrel and the photoelectric conversion element, and having an optical surface rotationally asymmetric about the optical axis. The alignment method includes aligning at least one of an attaching angle and an attaching position of the second optical element in a sub scanning direction relative to the first lens barrel. | 11-17-2011 |
20130222866 | ILLUMINATION APPARATUS AND IMAGE READING APPARATUS - An illumination apparatus configured to illuminate a target surface from a first side and a second side different from the first side, including: a guide; and a reflector, the guide including: incident surface; a surface for totally reflecting beam from the incident surface; a reflecting surface arranged on an opposite side of the incident surface relative to the surface; a first exit for causing the reflected beam to exit as converging beam from the first side, the first exit having condensing action in plane orthogonal to the one-dimensional direction; and a second exit, adjacent to the first exit, having condensing action in the orthogonal plane for causing beam not reflected by the reflecting surface to exit as converging beam, and the reflector reflecting the beam from the second exit to the target surface as beam from the second side. | 08-29-2013 |
20140139893 | ILLUMINATION APPARATUS AND IMAGE READING APPARATUS - An illumination apparatus for use in an image reading apparatus that forms a reduction image of a read area of an original on an image pickup element by an imaging optical system, includes: a light source illuminating the original; and a light guide guiding light to the original; wherein the light guide has a first surface on which light is incident or that diffuses light, a second surface from which light exits toward the read area, and a third and fourth surfaces arranged between the first and second surfaces in a sub-scanning section perpendicular to a longitudinal direction of the light guide, the third surface arranged on a side closer to an optical axis of the imaging optical system, and the fourth surface arranged on a side farther from the optical axis, wherein the third and fourth surfaces are reflective surfaces having the same paraxial power which is appropriately set. | 05-22-2014 |
Patent application number | Description | Published |
20090310145 | POSITIONING APPARATUS, POSITIONING METHOD, EXPOSURE APPARATUS, DEVICE MANUFACTURING METHOD, AND METHODS OF MANUFACTURING POSITIONING APPARATUS AND EXPOSURE APPARATUS - A positioning apparatus comprises a controller for controlling a driving device, and positions a measurement portion of an optical element. The controller displaces a drive portion of the optical element by a specific operation of the driving device, and calculate a displacement of the optical element as a first displacement based on an output from a position measuring device, calculate a displacement of the optical element caused by the specific operation as a second displacement, based on an output from a wavefront measuring device configured to measure a wavefront of light directed by the optical element, based on a difference between the first displacement and the second displacement, calibrate a position of the optical element calculated from the output from the position measuring device, and store a result of the calibration, and control the driving device based on the stored calibration result and an output from the position measuring device. | 12-17-2009 |
20130137044 | SCANNING APPARATUS, DRAWING APPARATUS, AND METHOD OF MANUFACTURING ARTICLE - A scanning apparatus which performs scan on an object with a charged particle beam includes: a blanking deflector configured to individually blank a plurality of charged particle beams based on control data; a scanning deflector configured to collectively deflect the plurality of charged particle beams to perform the scan; and a controller. The controller is configured to hold first data used to obtain error in a scanning amount and a scanning direction of the scanning deflector relative to a reference scanning amount and a reference scanning direction with respect to each of the plurality of charged particle beams, and to generate the control data based on the first data so that the scan is performed for a target region on the object. | 05-30-2013 |
20130288181 | DRAWING APPARATUS, AND METHOD OF MANUFACTURING ARTICLE - The present invention provides a drawing apparatus which performs drawing on a substrate with a charged particle beam, the apparatus comprising a correction device configured to correct drawing data for controlling the drawing, and a drawing device configured to perform the drawing with the charged particle beam based on data corrected by the correction device, wherein the correction device is configured to perform geometrical correction for the drawing data to overlay a drawing region with a target region on the substrate, and then perform proximity effect correction for the drawing data having undergone the geometrical correction. | 10-31-2013 |
20140207421 | DRAWING DATA GENERATION METHOD, PROCESSING APPARATUS, STORAGE MEDIUM, DRAWING APPARATUS, AND ARTICLE MANUFACTURING METHOD - A generation method of generating drawing data for performing drawing on a substrate by a drawing apparatus based on pattern data associated with a two-dimensional grid include: dividing the two-dimensional grid into a plurality of rectangular regions based on an angle by which the pattern data is rotated; and obtaining a translation amount of partial data of the pattern data with respect to each of the plurality of rectangular regions based on the angle. | 07-24-2014 |