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| Number | Title | Issue Date |
| 7375847 | Optical scanning device and image forming apparatus using the same An optical scanning device has: a first optical system for converting a flux of light that has been emitted from a light source into another flux of light; a second optical system for focusing the flux of light that has been converted by the first optical system as ... | 05/20/2008 |
| 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 |
| 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 |
| 7327507 | Optical beam scanning device having two sets of fθ mirrors where the mirror base and mirror face have differing coefficients of linear expansion An optical beam scanning device includes a rotating polygon mirror for scanning a beam from a pre-deflection optical system in a main scanning direction and two mirrors 23, 25 for imaging the beam scanned by the rotating polygon mirror 5 on an image pl... | 02/05/2008 |
| 7312920 | Confocal microscope A confocal microscope including a first condenser optical system that condenses light from a light source onto a sample; a pinhole member having a pinhole; a second condenser optical system that condenses light from the sample into the pinhole; a polygon mirror havi... | 12/25/2007 |
| 7257877 | Grating forming method and manufacturing method for master member for manufacturing molding die A grating forming method for forming a fine grating with a grating period of at most 1 μm on a surface of a blank material including (1) feeding realatively a diamond cutting tool and the blank material in a groove extended direction while rotating the diamond cutt... | 08/21/2007 |
| 7256815 | Image forming method, image forming apparatus, optical scan device, and image forming apparatus using the same An optical scan device having an optical deflector reflecting a light beam from a light beam source so as to deflect the light beam and having a surface to be scanned on which information is written such that the light beam deflected by the deflector scans the surfa... | 08/14/2007 |
| 7193762 | Scanning optical apparatus and image forming apparatus using the same A scanning optical apparatus having stable optical performance even if the characteristic of a vertical cavity surface emitting laser is fluctuated due to increase in drive current, and an image forming apparatus using the same are provided. The scanning optical app... | 03/20/2007 |
| 7187398 | Characterization of a scan line produced from a facet of a scanning device A method for refining a length of a scan line, where the scan line is produced from a facet of a scanning device. The method includes the steps of: (a) acquiring a plurality of scan line lengths produced from the facet, (b) determining from the plurality of scan lin... | 03/06/2007 |
| 7182466 | Projection optical system and optical system A projection optical system includes an optical modulation unit which outputs modulated light for displaying an image, an optical scanning unit on which the modulated light output from the optical modulation unit is incident, the optical scanning unit scanning the l... | 02/27/2007 |
| 7167194 | Printing a code on a product A method for printing is described. The method includes providing a printing system for printing a code on a product moving in a direction. The code is constructed from a plurality of pixels in a first data set indicating the positions of the pixels and generates a ... | 01/23/2007 |
| 7158165 | Laser beam scanner In a laser beam scanner according to the invention, L2/L1>L4/L3 is satisfied, where L2/L1 is the lateral magnification in the sub-scanning direction in an optical path from a polygon mirror to a photosensitive drum, and L... | 01/02/2007 |
| 7151624 | Light scanning unit A light scanning unit having a simple structure and a low-priced multi-beam shape is provided. The light scanning unit includes a composite light source in which a plurality of light sources for emitting coherent light having different wavelengths are arranged adjac... | 12/19/2006 |
| 7084896 | Multi-beam scanning device A multi-beam scanning device is provided with a light source that emits a plurality of light beams, a polygonal mirror that deflects the light beams to scan, and an optical system that converges the deflected light beams on a plurality of objects to be scanned. The ... | 08/01/2006 |
| 7072088 | Optical scanning apparatus, multi-beam optical scanning apparatus, and image-forming apparatus Provided are compact, high-definition, optical scanning apparatus and multi-beam scanning apparatus capable of keeping the spot size uniform in the sub-scanning direction throughout the entire, effective scanning area on a surface to be scanned. An optical scanning ... | 07/04/2006 |
| 7057326 | Rotor body containment shell with reduced windage losses A rotor body assembly includes a rotor and a containment shell surrounding the rotor, the containment shell having an external peripheral surface provided with a plurality of surface deformations. ... | 06/06/2006 |
| 7023462 | Multibeam exposure device A multibeam exposure device carrying out exposure processing by irradiating, onto an exposure surface of a photosensitive material, an exposure beam obtained by modulating a light beam, by a spatial light modulator and in accordance with an image to be exposed and f... | 04/04/2006 |
| 7009786 | Adjustable mount for cylindrical lens A positioning device disposes an optical component with respect to an optical axis. The positioning device has a lens carrier (14) for housing the lens (18) or other optical component, a mount (12) supporting the lens carrier along the optical a... | 03/07/2006 |
| 6995887 | Laser scanning apparatus A plane mirror is disposed in an optical path after a polygon mirror which deflects laser light. Incident light to and reflected light on the polygon mirror has no angle in an auxiliary scanning direction and the polarization direction of laser light is inclined rel... | 02/07/2006 |
| 6993255 | Method and apparatus for providing adaptive illumination An illumination system (20, 72, 110, 142) for illuminating a scene comprising: an illuminator (24, 74, 116) having a plurality of substantially contiguous independently controllable light (26, 76) providing regions each of which provides light t... | 01/31/2006 |
| 6950250 | Light beam receiver for a laser positioning device A light beam receiver for a laser beam (2) of a laser positioning device comprising a diffuse reflection surface (3) embodies a reflection surface (3) and at least one reflector surface (4a, 4b) facing the laser beam ... | 09/27/2005 |
| 6943927 | Optical scanning apparatus, multi-beam optical scanning apparatus, and image-forming apparatus Provided are compact, high-definition, optical scanning apparatus and multi-beam scanning apparatus capable of keeping the spot size uniform in the sub-scanning direction throughout the entire, effective scanning area on a surface to be scanned. An optical scanning ... | 09/13/2005 |
| 6934062 | Scanning optical system A scanning optical system includes a light source that emits a plurality of beams, a deflector disposed on optical paths of the beams emitted from light source, which deflector deflects the beams toward an object surface so that beam spots formed by the beams scan o... | 08/23/2005 |
| 6919993 | Scanning lens and scanning optical device A scanning lens molded with resin is disclosed. The lens has a first lens surface which a light beam incident to, and a second lens surface which emits the light beam. The lens further includes a first lens frame formed to project from the first lens surface, the fi... | 07/19/2005 |
| 6906824 | Tandem type printer scanning optical system having diffraction lens structure A tandem type printer is provided with a plurality of scanning optical systems, a plurality of fθ lenses and photoconductive drums, which correspond to the scanning optical systems, respectively. Each scanning optical system includes a laser source and a deflector ... | 06/14/2005 |
| 6903858 | Optical scanning device with air current rectifying mechanism An optical scanning device is disclosed that includes a rotary polygon mirror and an air current rectifying mechanism. The air current rectifying mechanism is positioned with a surface that is substantially parallel to an end surface of the rotary polygon mirror. At... | 06/07/2005 |
| 6873466 | Scanning optical system A scanning optical system deflects a light beam by a reflection surface of a polygon mirror toward an object surface through an image forming optical system so that the light beam scans on the object surface to form an image thereon. A light shielding member is disp... | 03/29/2005 |
| 6859329 | Scanning type display optical system and scanning type image display apparatus A scanning type display optical system which is small in size and can display images by two-dimensionally scanning light is disclosed. The scanning type display optical system scans light from a light source in a first direction by a first scanning device, and scans... | 02/22/2005 |
| 6847474 | Optical scanning device, scanning optical system, scanning imaging optical component, optical scanning method, ghost image preventing method and image forming apparatus A scanning imaging optical component is used in an optical scanning device which deflects a beam from a light source by a light deflector, condenses the deflected beam toward a surface to be scanned by a scanning imaging optical system, forms a beam spot on the surf... | 01/25/2005 |
| 6822774 | Optoelectronic device An optoelectronic device for detecting labels with defined contrast patterns includes a transmitter for emitting light rays, a receiver for receiving light rays, as well as a deflection unit with a motor-driven polygonal mirror wheel. The transmitted light rays and ... | 11/23/2004 |
| 6798549 | Multi-beam scanning optical system and image forming apparatus using it Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The multi-beam scanning optical system has an incidence optical unit for guidin... | 09/28/2004 |
| 6795222 | Multi-beam scanning optical system and image forming apparatus using it Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The multi-beam scanning optical system has an incidence optical unit for guidin... | 09/21/2004 |
| 6738172 | Rotating multi-faceted mirror for an optical scanning apparatus A rotating multi-faceted mirror of an optical scanning apparatus is disclosed having a plurality of planar reflective surfaces that deflect and scan a light beam incident thereon. Edges, formed as a result of the dihedral angle between adjacent planar reflective sur... | 05/18/2004 |
| 6735003 | Method and apparatus for reducing artifacts in an imaging system A method and apparatus for reducing artifacts in an imaging system by directing a stream of air onto the beam deflection assembly of the imaging system. An air displacement system, such as a fan assembly or the like, is oriented to direct, a stream of air onto the r... | 05/11/2004 |
| 6693733 | Polygonal mirror fixing device A polygonal mirror fixing device comprising a rotary body, to which a polygonal mirror is adapted to be mounted, has a mounting circumferential surface in a center opening of the polygonal mirror and a mounting bottom surface which projects from the mount... | 02/17/2004 |
| 6683707 | Scanning optical apparatus and image forming apparatus using the same An object of the present invention is to provide a scanning optical apparatus that is capable of suppressing, to a minute amount, scanning line bending caused by rotational decentration of a single lens that is a scanning optical system, and to provide an... | 01/27/2004 |
| 6680789 | Optical scanning device An optical scanning device comprises a rotary polygonal mirror which performs deflection scanning of a light beam emitted from a light source; and an annular member which is disposed around the rotary polygonal mirror in proximity thereto and which has a ... | 01/20/2004 |
| 6667820 | Multi-beam scanning optical system and image forming apparatus using it Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The multi-beam scanning optical system has an incidence optical unit... | 12/23/2003 |
| 6643043 | Scanning optical device and image forming apparatus A scanning optical device and color image forming apparatus use a refraction element and diffraction element as the scanning optical element of a scanning optical device, the powers of the refraction element and diffraction element being set such that an ... | 11/04/2003 |
| 6633423 | Scanning optical system and image forming apparatus using the same A scanning optical system includes a first optical system for shaping a light beam emitted from a light source and forming the light beam into a linear image elongated in the same direction as a main scanning direction, a light deflector which has a defle... | 10/14/2003 |
