Class / Patent application number | Description | Number of patent applications / Date published |
347241000 | Specific optical structure | 35 |
20090046137 | IMAGE FORMING APPARATUS - Described herein is a light source apparatus in which wasteful cost increases can be suppressed during the manufacture of various types of light source apparatuses and replacement of a broken light source can be performed at low cost, a recording apparatus using the light source apparatus, and an image forming apparatus comprising the recording apparatus, a plurality of optical units comprising optical members (a light source element and a lens) for outputting a single beam are combined separably in row form, and a holder used as means for holding the optical units in row form. | 02-19-2009 |
20090109273 | Optical Scanner - An optical scanner forms an electrostatic latent image on a photosensitive member by scanning the photosensitive member with a light beam. The optical scanner includes: an incident optical system which at least comprises: a light beam emission device configured to emit a light beam; and a cylindrical lens configured to condense the light beam emitted from the light beam emission device, and a scanning optical system which at least comprises: a light deflecting device configured to reflect the light beam having passed through the cylindrical lens to deflect the light beam in a main scanning direction for scanning the photosensitive member; and a scanning lens configured to focus the light beam deflected by the light deflecting device on the photosensitive member to form an electrostatic latent image thereon. The incident optical system and the scanning optical system are divided by a light shielding wall. | 04-30-2009 |
20090244253 | MULTI-BEAM OPTICAL SCANNING DEVICE - It is an object of the present invention to realize a multi-beam optical scanning device which is suitable for high speed and high recording density by almost completely offsetting and correcting a deviation of focusing positions in a main scanning direction of plural spots in an entire surface to be scanned without deteriorating focusing properties at all. The multi-beam optical scanning device includes: a light source device | 10-01-2009 |
20100165067 | Exposure Head And An Image Forming Apparatus Using The Exposure Head - An exposure head, includes: a first imaging optical system and a second imaging optical system which are arranged in a first direction; a light emitting element which emits light to be imaged by the first imaging optical system; and a light emitting element which emits light to be imaged by the second imaging optical system, wherein an inter-optical-system distance in the first direction between the first imaging optical system and the second imaging optical system satisfies the following expression: | 07-01-2010 |
20100201778 | Line Head and an Image Forming Apparatus Using Such a Line Head - A line head, includes: a substrate which is provided with a plurality of luminous element groups which respectively include a plurality of luminous elements in a first direction which emit light beams; a lens array which includes a plurality of imaging lenses which are provided corresponding to the plurality of luminous element groups; and a light shielding member which is disposed between the substrate and the lens array and includes a plurality of light guiding holes which correspond to the plurality of luminous element groups, wherein the lens array is away from the light shielding member, an inner diameter of each of the plurality of light guiding holes in the first direction is a first light guiding hole diameter, and a bore diameter of each of the plurality of imaging lenses in the first direction is a first lens diameter, and the first light guiding hole diameter is smaller than the first lens diameter. | 08-12-2010 |
20100295919 | Multiple Integrated Multi-Beam Laser Scanning System - Two integrated multi-beam sources are positioned and disposed such that each emits light toward an optical combiner. The combiner is of a type in which the optical paths of said first laser beams and the optical paths of said second laser beams may be made to be generally parallel to one another such that the optical system aperture throughput for the two integrated multi-beam sources is roughly the same as for a single integrated multi-beam source. The combiner may be a splitter such that a portion of the optical energy from each source is directed into an imaging path and a portion of the optical energy is directed toward an optical sensor for, inter alia, controlling the output of the sources. Additional sources and combiners maybe added in series, with the output of one combiner being the input to the additional combiner together with the output from the additional source. | 11-25-2010 |
20100321462 | EXPOSURE HEAD AND IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier having a curvature in a first direction; and an exposure head including a first light emitting element that emits a light having a wavelength λ | 12-23-2010 |
20110012986 | PRINTING APPARATUS AND PRINTING METHOD USING THE SAME - Provided is a printing apparatus for printing information on a printing area of an object to be printed by irradiating the object to be printed with a first laser beam. The printing apparatus includes a light source for outputting the first laser beam, a light collecting optical system for collecting the first laser beam to the printing area of the object to be printed, and a scanning unit for performing scanning with the first laser beam. The object to be printed contains moisture at least in the printing area, and a wavelength of the first laser beam is 350 nm or more and 550 nm or less. | 01-20-2011 |
20110025814 | SCANNING OPTICAL APPARATUS AND IMAGE FORMING APPARATUS USING SAME - An scanning optical apparatus of present invention converts plural light beams emitted from corresponding light source units by a light beam conversion unit, deflectively scans by a deflection unit, focuses by an imaging optical unit onto corresponding scanned surfaces. At least two of light source units are arranged along a direction perpendicular to the direction in which the light beams are emitted. The light beam conversion unit includes plural light beam conversion elements that reflect the light beams emitted in the same direction from the light source units to deflect the light beams in the same direction. Each of the light beam conversion elements has at least one reflecting surface having a power and at least one diffracting surface having a power, and has different powers with respect to the main scanning direction and with respect to the sub scanning direction. | 02-03-2011 |
20110043593 | Lens Array, An Exposure Head and an Image Forming Apparatus - An exposure head, includes: a lens array that includes lenses that are arranged in a first direction and in a second direction orthogonal to the first direction; and a light emitting element substrate that is provided with light emitting elements that emit lights to be imaged by the lenses, wherein a relationship defined by a following formula: 102-24-2011 | |
20110164104 | DIODE-LASER MARKER WITH ONE-AXIS SCANNING MIRROR MOUNTED ON A TRANSLATABLE CARRIAGE - Apparatus for marking a bitmap image on tape includes a source of a modulatable laser-beam. The beam is directed to an oscillating mirror on a carriage translatable across the width direction of the tape. The oscillating mirror directs the beam to a focusing lens mounted on the carriage. The focusing lens is arranged to focus the beam to a focal-spot on the tape. As the carriage is translated, the focal-spot is swept reciprocally in a wave-like path across the tape. Modulation of the beam is arranged such that pixels of a plurality of rows of the bitmap image are printed in one traverse of the carriage. The tape is advanced incrementally and repeated traverses of the carriage are made to complete printing of the bitmap image. | 07-07-2011 |
347242000 | Having mounting or supporting means | 4 |
20090141115 | Line Head, Image Forming Apparatus Incorporating the Same, and Method of Adjusting Position of the Same - In a line head, a plurality of light emitters are arrayed on a substrate in a first direction. Each of the light emitters is operable to emit a light beam. In a rod lens array, a plurality of rod lenses are arrayed in the first direction, and each of the rod lenses is adapted to focus the light beam emitted from an associated one of the light emitters onto a target surface. The substrate and the rod lens array are attached to a holder elongated in the first direction. Positioning members are provided at both end portions of the holder in the first direction. A relative position between the substrate and at least one of the positioning members is variable in a second direction perpendicular to the first direction. | 06-04-2009 |
20100265310 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device that uses a light spot to scan an image surface with a light source, a deflector, and an imaging element includes a housing in which the light source, the deflector, and the imaging element are set. The housing includes at least two sidewalls opposed to each other, a bottom surface that extends substantially perpendicular to the sidewalls, and ribs that are substantially perpendicular to the bottom surface and formed to extend from the two sidewalls, respectively. Discontinuous sections (sections between ribs or notched sections of the ribs) for passing light beams are provided in the ribs. A reinforcing member separate from the ribs are bridged to the discontinuous sections. | 10-21-2010 |
20120075403 | EXPOSURE DEVICE, LED HEAD AND IMAGE FORMING DEVICE - An exposure device includes: a substrate on which a plurality of light emitting elements are mounted; an optical system that converges light irradiated from the light emitting elements onto a photosensitive surface; a holding member that holds and fixes the substrate; a support member that supports the optical system and the holding member; a first adhesive member that is tprovided between the substrate and the holding member; and a second adhesive member that is provided between the holding member and the support member, wherein the first adhesive member has higher elongation and lower hardness than the second adhesive member. | 03-29-2012 |
20130070041 | Laser Scan Unit Housing for an Imaging Device - A housing for the scan unit printhead of an imaging device. The housing is substantially bowl shaped having a plurality of mounting surfaces extending inwardly toward a central region of the housing. The housing is constructed from a metal composition. The scan unit includes a plurality of light sources and an optical assembly operatively coupled thereto. The housing mounting surfaces support components of the optical assembly using an adhesive, without additional mounting hardware. | 03-21-2013 |
347243000 | Including deflector | 14 |
20080278566 | Apparatus and Method of Scanning Light Using an Array of Light Sources - Apparatus comprising a two-dimensional array of light sources ( | 11-13-2008 |
20090002474 | MULTI-BEAM OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME - A multi-beam optical scanning device which enables uniform scan line pitch and high precision image, includes a light source having plural light emitting members, a rotary polygonal mirror having a deflecting surface, a first optical system for imaging a light beam on the deflecting surface and a second optical system for imaging the light beam on a scan surface to be scanned, wherein the optical axis of the first optical system is disposed at a particular angle in a sub-scan section with respect to a plane perpendicular to the deflection axis of the deflecting surface, and wherein, with respect to the imaging magnification in the sub-scan section of the second optical system on the optical axis and between the deflecting surface and the scan surface, the imaging magnification at a scan start side is made large while the imaging magnification at the scan end side is made small or, alternatively, the imaging magnification at a scan start side is made small while the imaging magnification at the scan end side is made large. | 01-01-2009 |
20090058981 | Optical writing device and image forming apparatus - An optical writing device includes a dichroic mirror and a deflection beam splitter. The dichroic mirror causes a light beam to pass therethrough or reflect depending on the wavelengths of the light beam. The deflection beam splitter causes a light beam to pass therethrough or reflect depending on a direction from which the light beam is received. | 03-05-2009 |
20090096856 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME - An optical scanning device in which an optical deflector scanningly deflects a light beam emitted from a light source and in which an imaging optical system images the scanningly deflected light beam onto a scan surface. The imaging optical system includes a transmission type imaging optical element and a reflection type optical element, which are disposed in this order from the optical deflector. The reflection type optical element reflects the scanningly deflected light beam in an off-normal light path towards the scan surface. To avoid interference with the off-normal path, a contour central line of the transmission type imaging optical element is positioned at one side of a principal ray of the light beam incident on the transmission type imaging optical element, which side is remote from the off-normal light path reflected by the reflection type optical element. | 04-16-2009 |
20090153644 | OPTICAL SCANNING APPARATUS AND COLOR IMAGE FORMING APPARATUS - An optical scanning apparatus includes light source units; a deflecting unit, incident optical systems provided so as to correspond to the light source units, and at least one synchronous detection optical system that controls a timing at which the light beams form images on the surfaces to be scanned. The synchronous detection optical system includes a synchronous detection element, at least one optical path changing unit, and at least one synchronous detection optical element. The synchronous detection element is attached to a circuit substrate of the light source unit arranged to oppose the light source unit that emits a light beam used for synchronous detection, with the deflecting unit therebetween. The synchronous detection optical element and the synchronous detection element are arranged to oppose each other with respect to a line perpendicular to lines connecting a deflection axis of the deflecting unit and optical axes of the imaging optical systems. | 06-18-2009 |
20090195635 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - A deflector deflects a light beam emitted from a light source including a plurality of light-emitting units. A scanning optical system focuses the light beam deflected by the deflector on a scanning target surface. A monitoring photoreceiver receives a part of a light beam deflected by the deflector and directed toward an area within a scanning area outside an image area. A detecting unit individually detects emission powers of at least two light-emitting units based on an output signal of the monitoring photoreceiver in a single sweep of scanning. | 08-06-2009 |
20090195636 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - A pre-deflector optical system includes an isolator arranged on an optical path of a light beam from a light source. The isolator has a first surface with different light transmittances depending on a polarization state of an incident light beam on a first side close to the light source and a second surface imparting an optical phase difference of a ¼ wavelength to the incident light beam on a second side. A deflector deflects the light beam passed through the pre-deflector optical system. A rotation mechanism rotates the isolator around its optical axis. A holding member holds the light source and the isolator in a predetermined positional relationship. | 08-06-2009 |
20100091082 | OPTICAL BEAM SCANNING APPARATUS AND IMAGE FORMING APPARATUS - An optical beam scanning apparatus according to the present invention includes: a light source; a pre-deflection optical system; a light deflecting device; a post-deflection optical system configured to include at least one or plural second optical elements, which act on light beams of all color components, and plural third optical elements, which respectively act on the light beam of each of the color components, and focus the light beams scanned by the light deflecting device on the scanning object; and a position adjusting mechanism configured to adjust the positions of the third optical elements according to incident directions of the light beams made incident on the third optical elements. Consequently, according to the present invention, it is possible to suitably adjust optical elements included in a post-deflection optical system in which individual focusing lenses are provided for respective color components. | 04-15-2010 |
20100141730 | SCANNING OPTICAL APPARATUS - A scanning optical apparatus includes a light source, a deflecting element for deflecting a beam of light emitted from the light source, an optical device for causing the beam of light emitted from the light source to be imaged into a linear shape long in the main scanning direction on the deflecting surface of the deflecting element. The optical device is comprised of a first optical element and a second optical element, and a third optical element for causing the beam of light deflected by the deflecting element to be imaged into a spot-like shape on a surface to be scanned. The third optical element includes a single lens, the opposite lens surfaces of which both include a toric surface of an aspherical surface shape in the main scanning plane, the curvatures of the opposite lens surfaces in the sub scanning plane being continuously varied from the on-axis toward the off-axis in the effective portion of the lens. | 06-10-2010 |
20100165068 | OPTICAL BEAM SCANNING APPARATUS AND IMAGE FORMING APPARATUS - An image forming apparatus provided with an optical beam scanning apparatus according to the invention includes a semiconductor laser device, a pre-deflection optical system, a polygon mirror, and a post-deflection optical system, wherein at least one imaging lens for imaging the luminous flux is provided in the post-deflection optical system includes; at least one projection on a vertical surface to a sub-scanning direction axis is provided in the imaging lens; and at least one positioning member having an engaging groove into which the projection is interfitted and which is engaged in a concave-convex shape is provided in the housing unit of the optical beam scanning apparatus. In accordance with an image forming apparatus according to the invention, in a scanning optical system using an imaging lens or an imaging mirror, influences against optical characteristics following an environmental fluctuation or a change with time can be reduced. | 07-01-2010 |
20100194843 | OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, CONTROL METHOD, AND COMPUTER PROGRAM PRODUCT - In an optical scanning device including a vertical cavity surface emitting laser (VCSEL), an optical scanning device controls so as to satisfy P | 08-05-2010 |
20100328417 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes four light sources, a pre-deflector optical system, a polygon mirror, an optical scanning system, etc. The optical scanning system includes deflector-side scanning lenses made of glass, imaging-surface-side scanning lenses made of resin, polarized light splitters, and reflecting mirrors. The deflector-side scanning lenses, the imaging-surface-side scanning lenses, the polarized light splitters, and the reflecting mirrors are arranged in this order on an optical path of light going from the polygon mirror toward drum-shaped photosensitive elements. | 12-30-2010 |
20110037825 | VERTICAL CAVITY SURFACE EMITTING LASER DEVICE, VERTICAL CAVITY SURFACE EMITTING LASER ARRAY, OPTICAL SCANNING APPARATUS, IMAGE FORMING APPARATUS, OPTICAL TRANSMISSION MODULE AND OPTICAL TRANSMISSION SYSTEM - A disclosed vertical cavity surface emitting laser device emits light orthogonally in relation to a substrate and includes a resonator structure including an active layer; and semiconductor multilayer reflectors disposed in such a manner as to sandwich the resonator structure between them and including a confinement structure which confines an injected current and transverse modes of oscillation light at the same time. The confinement structure has an oxidized region which surrounds a current passage region. The oxidized region is formed by oxidizing a part of a selective oxidation layer which includes aluminum and includes at least an oxide. The selective oxidation layer is at least 25 nm in thickness. The semiconductor multilayer reflectors include an optical confinement reducing section which reduces optical confinement in a transverse direction. The optical confinement reducing section is disposed on the substrate side in relation to the resonator structure. | 02-17-2011 |
20140184719 | IMAGE FORMING APPARATUS - A structure in which a shutter is moved in a first direction by a motor, an opening is provided in the shutter, and the shutter is moved in a second direction using an elastic force of a spring connected to an upper cover of a light scanning device and an inside wall at the opening of the shutter increases the size of the structure of the shutter and the structure of the light scanning device due to the position of the spring. Therefore, a recess | 07-03-2014 |
347244000 | Specific lens | 6 |
20080225108 | Line Head and an Image Forming Apparatus Using the Line Head - A line head, includes: a plurality of light emitting elements that are grouped into light emitting element groups, and an array that includes a plurality of imaging optical systems provided with respect to each light emitting element group which focus light beams emitted from the light emitting element groups toward a latent image-forming surface being conveyed in a second direction normal to or substantially normal to a first direction, wherein the plurality of imaging optical systems face positions on the latent image-forming surface mutually different in the second direction, and the respective imaging optical systems are constructed in accordance with differences in facing positions on the latent image-forming surface in the second direction. | 09-18-2008 |
20090147067 | PRINT HEAD AND IMAGE FORMING APPARATUS INCLUDING THE SAME - Provided are a print head and an image forming apparatus. The print head, which selectively irradiates light to each pixel of an image on a photoconductor, the print head includes an illumination unit, which emits light, a liquid crystal layer, which transmits or intercepts the light incident from the illumination unit on a unit pixel basis according to an applied voltage, and a microlens array formed of liquid crystal polymer, which either focuses or does not focus the light passed through the liquid crystal layer onto the photoconductor. | 06-11-2009 |
20090189970 | Lens Array, Exposure Head, and Image Forming Apparatus - An exposure head includes: a lens array in which lenses are disposed in a first direction; and a light-emitting element substrate on which light-emitting elements that emit light to be focused by the lenses are disposed. Length L | 07-30-2009 |
20100013903 | RECORDING APPARATUS AND RECORDING METHOD - Provided is a recording apparatus capable of performing recording on a recording medium having a lenticular lens. The recording apparatus includes a mounting portion on which the recording medium is mounted, the mounting portion including a positioning structure that comes to be positioned between neighboring lens elements of the lenticular lens of the recording medium so as to be engaged with at least one of the lens elements, thereby positioning the recording medium with respect to the arrangement direction of the lens element; a distance information acquisition unit that acquires information on the distance between a reference edge, which serves as the reference of a recording position and is defined at the edge in the arrangement direction of the lens elements, and a predetermined reference position with respect to a target recording medium which is the recording medium which is mounted at a predetermined position of the mounting portion in a state of being positioned by the positioning structure, and on which recording is actually performed; a correction unit that corrects the recording position on the target recording medium based on the distance information obtained by the distance information acquisition unit; and a recording unit that performs recording on the recording medium based on the recording position corrected by the correction unit. | 01-21-2010 |
20100039489 | Line Head and Image Forming Apparatus Using the Same - A line head includes multiple light emitting element groups each including multiple light emitting elements. In each light emitting element group, the multiple light emitting elements are disposed in a two-dimensional arrangement so that a distance Gx is greater than a distance Gy. The light emitting element groups are arranged so that pitches Px are greater than pitches Py. | 02-18-2010 |
20100053299 | WIDE FIELD DIODE-LASER MARKER WITH SWINGING PROJECTION-OPTICS - Apparatus for laser-marking on tape includes a laser arranged to emit a modulated beam of laser-radiation. Projection-optics are arranged to focus a beam to a spot on the tape. The tape is driven under the focal spot for scanning the beam in the length direction of the tape. The projection-optics are rotated reciprocally to scan the focal spot over the tape in a direction transverse to the length direction of the tape. | 03-04-2010 |