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| Number | Title | Issue Date |
| 7522326 | Optical scanning device and image forming apparatus In an optical scanning device, a rotational axis of a first rotary polygon mirror and a rotational axis of a second rotary polygon mirror are inclined toward the same side with respect to a direction perpendicular to a reference plane inclusive of each of center axe... | 04/21/2009 |
| 7511869 | Optical scanning device An optical scanning device includes a beam generating unit configured to generate a beam of light, a scanning unit with a plurality of scanning planes configured to deflect the beam of light generated by the beam generating unit and cause the beam of light to scan a... | 03/31/2009 |
| 7499205 | Optical member holding device, and optical scanning device provided with the same A device for holding a laser diode (LD) and a collimate lens. A laser unit includes an LD supporting section supporting the LD, and a lens supporting section supporting the lens positioned opposite to the LD. A connecting portion connects the lens supporting section... | 03/03/2009 |
| 7486427 | Polygon mirror, laser scanning unit having the same, and image forming apparatus having the same A polygon mirror of a laser scanning unit includes reflective surfaces to reflect laser beams, and first to third dielectric layers laminated on the reflective surfaces. The second dielectric layer comprises TiO2, which can reduce a reflectivity deviation... | 02/03/2009 |
| 7474451 | Optical scanning device, image forming apparatus, and method of reducing noises in optical scanning device An optical scanning device includes a deflector that deflects light fluxes emitted from light sources and rotates in a first direction, optical systems that direct deflected light fluxes onto subject surfaces, and a member that prevents a flare beam reflected by one... | 01/06/2009 |
| 7450287 | Optical scanning device and method for detecting synchronization signal Provided are an optical scanning device and a method for detecting a synchronization signal. In the optical scanning device, a beam incident on a scanning area of an object's surface to be scanned and a beam incident on a synchronization signal detector are emitted ... | 11/11/2008 |
| 7440001 | Optical writing device and image forming apparatus An optical writing device includes a polygon mirror configured to guide a light beam emitted from a light source. The polygon mirror is disposed in a case. The case includes a cover unit and a pressure unit configured to exert pressure on the cover unit. Pressure ex... | 10/21/2008 |
| 7436565 | Laser scanning device A laser scanning device includes a device body, and a rotating polygonal mirror rotatably mounted in the device body and deflecting light projected from a light source. A cover member is mounted in the device body to cover the rotating polygonal mirror. The cover me... | 10/14/2008 |
| 7428089 | Optical scanning device and image forming apparatus An optical scanning device includes a light source that emits a light beam, an optical deflector at which a light beam emitted from the light source is incident, the optical deflector deflecting the incident light beam, an optical system that guides the deflected li... | 09/23/2008 |
| 7428087 | Mirror structure for laser printer The present invention relates to a weight-balancing structure for rotary polygon mirror of color laser printer, 1 which includes a stator set, a rotor set having a loading disc fixed on a spindle, a motor housing disposed underneath the loading disc, and a rotary po... | 09/23/2008 |
| 7420723 | Optical deflector, production method thereof, optical scanning device, and image forming apparatus An optical deflector, a method of producing the optical deflector, an optical scanning device, and an image forming apparatus are disclosed that are able to save resources, provide high reliability at low cost, and enable stacked and relatively-offset polygon mirror... | 09/02/2008 |
| 7414239 | Optical-scanning apparatus and image forming apparatus An optical-scanning apparatus is disclosed. In at least one embodiment, the optical-scanning apparatus includes a light deflector to deflect a beam from a light source; and an optical housing including a scanning-image optical system to focus the beam to scan a phot... | 08/19/2008 |
| 7399094 | Polygon mirror and polygon mirror molding die A polygon mirror includes a reflective surface group having n number of reflective surfaces (M(1), . . . , M(n)) formed individually as outer peripheral side faces, a flat portion which shuts one end portion of the reflective surface group, and n number of pi... | 07/15/2008 |
| 7394582 | Rotary deflector, optical scanning unit and image forming apparatus The inventive device reduces noises and stabilizes the image quality of an image forming apparatus by reducing vibration thereof by reducing vibration of a driving source itself within a preset frequency range without changing the resonating condition of a housing. ... | 07/01/2008 |
| 7382509 | Polygon mirror scanner device with tubular magnet adhered to the inside of the tubular mirror with a depression on the inner face, opposite the mirror face, with a gap, absent adhesive, formed between the magnet and inner face Disclosed is a polygon mirror scanner device, used as a rotor, having a plurality of mirror faces on the outer peripheral face of a mirror member having a substantially tubular shape, with a tubular magnet adhered to the lower inner peripheral face of the mirror mem... | 06/03/2008 |
| 7379222 | Optical scanning unit and image forming apparatus An optical apparatus for irradiating a surface to be scanned with laser light comprises rotary deflecting means for deflecting laser light emitted by a laser emitting means in a shape of a plane, a mirror for reflecting the laser light, an enclosure for housing the ... | 05/27/2008 |
| 7379220 | Multi-beam color scanning device A multi-beam color scanning device is provided with a multi-beam light source unit, a first polygonal mirror that deflects the plurality of light beams emitted by the multi-beam light source unit to scan in a horizontal scanning direction. The scanning beams pass th... | 05/27/2008 |
| 7372604 | Multi-beam scanner, multi-beam scanning method, synchronizing beam detecting method and image forming apparatus A multi-beam scanner includes light sources, a deflector deflecting the beams emitted from the light sources at an equiangular velocity, a scanning image-forming optical system guiding the deflected beams to a surface so as to be formed into light spots on the scann... | 05/13/2008 |
| 7372606 | Optical pattern generator using a single rotating component An optical pattern generator uses a single rotating component. The rotating component includes a number of deflection sectors. Each sector deflects an incident optical beam by a substantially constant angular amount although this amount may vary from one sector to t... | 05/13/2008 |
| 7372605 | Polygon mirror apparatus A polygon mirror apparatus preventing a polygon mirror from separating from a rotor, having a rotor housing integrally formed with a polygon mirror is provided. The polygon mirror apparatus includes a base, a bearing coupled with the base, and a rotating shaft insta... | 05/13/2008 |
| 7369148 | Frequency modulation apparatus and frequency modulation method A frequency modulation apparatus capable of reducing a peak level of a radiation noise of a characteristic frequency band due to an image clock. This frequency modulation apparatus is used in an image formation apparatus having an image bearing body to be scanned by... | 05/06/2008 |
| 7365764 | Scanning optical apparatus and color image forming apparatus using the same A scanning optical apparatus includes a light source capable of being modulated, a deflecting element for deflecting and scanning a beam emitted from the light source, a scanning optical element for imaging the deflected beam into a spot shape on a scanned surface, ... | 04/29/2008 |
| 7355771 | Optical scanning apparatus An optical scanning device has a light shield plate where a scanning line emitted from a light source passes through a scanning lens, and is reflected by a rotation polygon mirror, and after that, passes through the scanning lens again, and is reflected by the scann... | 04/08/2008 |
| 7355773 | Optical scanning apparatus and image forming apparatus using same An optical scanning apparatus includes a light source device, a rotating polygon mirror, a first optical system, and a second optical system. The light source device has at least one light emitter. The first optical system can cause a light beam emitted from the lig... | 04/08/2008 |
| 7347617 | Mixing in microfluidic devices Mixing of liquids in a microfluidic device is accomplished by dispensing the liquids into a first chamber to produce combined liquid. The liquids are thereafter discharged through at least one capillary from the first chamber into a second chamber for complete mixin... | 03/25/2008 |
| 7348549 | Light scanning apparatus Provided is a light scanning apparatus, including a light source, a light source controller to control an on/off operation of the light source, a light deflector deflecting light emitted from the light source, an image formation optical system to direct light deflec... | 03/25/2008 |
| 7342700 | Optical scanning apparatus and image forming apparatus An optical scanning apparatus includes a deflecting member that deflects and scans a light beam emitted from a light source, an optical element that scans and images the light beam on a medium to be scanned; and an opening member being disposed in a vicinity of the ... | 03/11/2008 |
| 7339713 | Optical beam scanner, image forming device, and optical beam scanning method An optical beam scanner includes a driving unit rotating a rotary polygon mirror that deflects and scans an optical beam; a rotation position detection unit; a rotation control unit controlling the driving unit in accordance with a rotation reference signal and an o... | 03/04/2008 |
| RE40109 | Multi-beam optical scanner A multi-beam optical scanner, in which a lateral magnification β in a composite system of an optical system between the light source for a multi-beam and the scanned surface satisfies the condition: 2 | 02/26/2008 |
| 7330295 | Optical scanning device and cover glass cleaning mechanism for optical scanning device The present invention relates to an optical scanning device in which a light beam is incident twice on a deflective reflecting facet and its object is to reduce curvature in scanning line trail or make the curvature substantially zero, or correct scanning line displ... | 02/12/2008 |
| 7330293 | Optical scanning unit An optical scanning unit designed to provide a sufficient optical path length between a light source and an exposed object while reducing the overall space it occupies. The optical scanning unit may include a light source that produces and emits at least one beam, a... | 02/12/2008 |
| 7330296 | Synchronous detector, optical scanner, and image forming apparatus A synchronous detector detects timing of scanning by an optical scanner in an image forming apparatus. The optical scanner has a light source that emits a light beam, a deflecting unit that deflects the light beam, a scanning optical element that focuses the light b... | 02/12/2008 |
| 7324132 | Imaging three-dimensional objects Imaging systems and methods are described. In one aspect, an imaging system includes a light source that is operable to generate a beam of light directed along a beam path and an optical element that is operable to rotate about a rotational axis. The optical element... | 01/29/2008 |
| 7319475 | Method and apparatus for image forming capable of preventing image quality deterioration induced by heat from an optical deflector An image forming apparatus includes an image bearing member having a photosensitive surface and an optical writing apparatus generating a laser beam modulated according to image data. The optical writing apparatus includes a housing, an optical deflector, an f-theta... | 01/15/2008 |
| 7319476 | Image forming apparatus and scanning unit In an image forming apparatus, a rigid-body plate, which is to be placed across a scanning unit for constituting a housing, also serves as an upper cover of the scanning unit, and the scanning unit is suspended on the rigid-body plate at an interior position from a ... | 01/15/2008 |
| 7312467 | Device and method for reading out X-ray information stored in a storage phosphor layer An apparatus and associated method for reading out X-ray information of an X-ray picture stored in a phosphor layer includes: an irradiation device for irradiating the phosphor layer with a stimulating light beam to be moved along a line over the phosphor layer, and... | 12/25/2007 |
| 7304933 | Optical recording apparatus using scanning mirror for generating two-dimensional beam The present invention relates to an optical recording apparatus, which converts a one-dimensional signal beam into a two-dimensional signal beam using a scanning mirror at the time of recording data on a holographic recording medium, etc., thus greatly reducing requ... | 12/04/2007 |
| 7304779 | Device for converting light A device for converting light from, for example, a laser, VCSEL (vertical cavity surface emitting laser) or light emitting diode/diodes to a plane of propagation, comprising a collimated or focused light emitter, characterized in that a full or a portion or several ... | 12/04/2007 |
| 7304660 | Optical beam scanning device and diaphragm device capable of adjusting light quantity distribution An optical beam scanning device of the present invention has a light source, a deflection reflecting surface for deflecting to scan light from the light source on a recording medium, and a diaphragm device which is provided between the light source and the deflectio... | 12/04/2007 |
| 7304777 | Optical scanning apparatus and image forming apparatus using the same An overfilled optical scanning apparatus has an incidence optical system for converging a light beam onto a deflection surface of a light deflector which has a plurality of deflection surfaces, and an imaging optical system for imaging the deflected light beam onto ... | 12/04/2007 |
