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| Number | Title | Issue Date |
| 8130248 | Image forming apparatus and light scanning apparatus An image forming apparatus having a photosensitive element, is provided with a light source for scanning light to the photosensitive element; a light blocking member disposed in a light traveling path of the light from the light source and moving between a blocking ... | 03/06/2012 |
| 7796147 | Optical scanner and image-forming device having the same An optical scanner includes a light source, a polygon mirror, an optical member, a casing, and an exit hole cover. The light source emits a light beam. The polygon mirror rotates and deflects the light beam to be scanned in a scanning direction. The optical member f... | 09/14/2010 |
| 7710441 | Systems and methods for using multiple scanner facets to write a scan line of image data in an electrophotographic device An imaging system comprises a laser source for emitting a beam, a photoconductive surface, a scanning device and a controller. The controller designates at least a first part and a second part of each line of image data, corresponding to a first part and a second pa... | 05/04/2010 |
| 7367553 | Recording apparatus A recording apparatus includes a recording head for effecting recording on a recording material in accordance with recording information; first feeding means including a grip roller and a pinch roller disposed downstream of the recording head with respect to a recor... | 05/06/2008 |
| 7362493 | Micromirror and post arrangements on substrates A micromirror of a micromirror array of a spatial light modulator used in display systems comprises a mirror plate attached to a hinge that is supported by two posts formed on a substrate. Also the mirror plate is operable to rotate along a rotation axis that is par... | 04/22/2008 |
| 7355615 | Optical scanning apparatus The optical scanning apparatus includes a light amount reducing filter such as a neutral density filter which has transmittance ηnd satisfying an expression ηnd=(W1/W0)/(ηAOM×ηref×ηtra | 04/08/2008 |
| 7354214 | Image forming apparatus having a chassis containing a curved part that supports a roller bearing The image forming apparatus includes a chassis, a feed roller, and a press roller. The chassis includes first and side surfaces, a bottom surface that connects the first and second side surfaces, and a curved part formed unitarily with the bottom surface. The curved... | 04/08/2008 |
| 7352377 | Exposure device and image forming apparatus An exposure device is provided with a shutter member having a slit. The shutter member is provided between a member to be scanned and a housing of a main device unit that has an optical transmission member. The shutter member is freely movable between an open positi... | 04/01/2008 |
| 7334890 | Recording apparatus In second transport means (12), nipping pressure of each of outermost star wheels (6a), (6e) located at opposite ends in the primary scanning direction is set higher than that of each of star wheels (6b) to (6 | 02/26/2008 |
| 7321380 | Laser emitter and laser scanning device A laser emitter including: a first lens barrel portion for holding a first laser element; a second lens barrel portion for holding a second laser element whose optical axis is slanted with respect to an optical axis of the first lens barrel portion, the second lens ... | 01/22/2008 |
| 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 |
| 7304659 | Optical beam scanning device and image forming apparatus An optical beam scanning device of the present invention is for having a light beam with the width in the main scanning direction wider than the width in the main scanning direction of the reflection surface of a deflector incident on the deflector, reflecting and p... | 12/04/2007 |
| 7271821 | Laser printer with reduced banding artifacts A laser scanning assembly generates a laser beam and scans the laser beam through a plurality of scan lines to form desired dots. Each scan line is positioned to overlap an adjacent scan line and each dot includes a plurality of segments. The scanning assembly scans... | 09/18/2007 |
| 7265774 | Collimating lens of beam scanning apparatus A beam scanning apparatus having a collimating lens in which a beam emitted from a light source is transformed into at least one of a convergent beam and a parallel beam with respect to an optical axis and outputted towards a slit. The collimating lens being one she... | 09/04/2007 |
| 7256917 | Two-dimensional scanning apparatus and scanning type image displaying apparatus using the same A two-dimensional scanning apparatus has light source means, deflecting means for deflecting a beam emitted from the light source means in a two-dimensional direction, and scanning optical means for directing the beam deflected by the deflecting means onto a surface... | 08/14/2007 |
| 7253827 | Multi-beam scanning apparatus Disclosed in a multi-beam optical scanning apparatus which includes a light source unit including a plurality of radiation points disposed with being spaced from each other in a main scanning direction, and a deflecting unit for deflecting a plurality of light beams... | 08/07/2007 |
| 7227563 | Image writing apparatus and color image forming apparatus The present invention provides a color image forming apparatus forming an image by using a plurality of image carriers, wherein at least one lens having identical optical characteristics and forming individual scanning optical systems which scan the individual image... | 06/05/2007 |
| 7221495 | Thin film precursor stack for MEMS manufacturing This invention provides a precursor film stack for use in the production of MEMS devices. The precursor film stack comprises a carrier substrate, a first layer formed on the carrier substrate, a second layer of an insulator material formed on the first layer, and a ... | 05/22/2007 |
| 7167297 | Micromirror array In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 01/23/2007 |
| 7167291 | Optical scanning apparatus and image forming apparatus using the same An optical scanning apparatus can satisfactorily correct a field curvature caused by spherical aberration in an incidence optical system. A light beam emitted from a light source is guided to an optical deflector for deflecting the light beam through a first optical... | 01/23/2007 |
| 7164520 | Packaging for an interferometric modulator A package is made of a transparent substrate having an interferometric modulator and a back plate. A non-hermetic seal joins the back plate to the substrate to form a package, and a desiccant resides inside the package. A method of packaging an interferometric modul... | 01/16/2007 |
| 7145589 | Light scanning apparatus having a liquid crystal deflector and image forming apparatus using the same A light scanning apparatus that scans a scanned face with a light beam includes an adjusting unit that adjusts the position of a light spot of the light beam formed on the scanned face, and a compensating unit that compensates the light intensity of the light beam a... | 12/05/2006 |
| 7133022 | Apparatus for image projection The invention is directed to a solid-state projection device incorporating a light source, modulator, and control circuitry on a single chip. For example, projection device may include several sets of VCSELs, each associated with a set of MEMs mirrors and coupled to... | 11/07/2006 |
| 7119824 | Multi-beam optical scanning apparatus, and image forming apparatus using the same An object is to obtain a multi-beam optical scanning apparatus in which a displacement of an image location of each of light beams emitted from a plurality of light emitting portions is reduced, and which is suitably usable in a high-speed and high-image-quality app... | 10/10/2006 |
| 7119825 | Parallel beam to beam power correction An electro-optical system for adjusting beam to beam power non-uniformity in a multi-beam scanning system is disclosed. The electro-optical system consists of N×M array of light beams and N×M array of photodetectors wherein optical means deflect the light beams on... | 10/10/2006 |
| 7075702 | Micromirror and post arrangements on substrates A micromirror of a micromirror array of a spatial light modulator used in display systems comprises a mirror plate attached to a hinge that is supported by two posts formed on a substrate. Also the mirror plate is operable to rotate along a rotation axis that is par... | 07/11/2006 |
| 7068296 | Optical scanning device for reducing a dot position displacement at a joint of scanning lines In this optical scanning device, a plurality of scanning optical systems are arranged in a main scanning direction. Each of the scanning optical systems includes a deflecting unit performing an optical scanning by oscillation. Scanning frequencies of the deflecting ... | 06/27/2006 |
| 7061517 | Exposure head In the present invention provides, in order to obtain a desired focal depth t in a range α of an acceptable increased amount of beam diameter, an exposure head is designed so that the ratio D/W of an output beam width D to a beam width W at the position where a DMD... | 06/13/2006 |
| 7043962 | Sheet material type detector A sheet material type detecting method for detecting a sheet material type has the steps of applying tension to at least a part of a sheet material, bounding an impact applying part on the part applied with the tension, a period detecting step of determining a perio... | 05/16/2006 |
| 7042484 | Scan line length adjustment In one embodiment, the present invention provides a scan line controller for use with a laser scanning device. The scan line controller includes a pulse width modulator system to receive a pulse code, including a first pulse width modulator to receive a first dot cl... | 05/09/2006 |
| 7039348 | Method for maintaining image on image and image on paper registration A method for repositioning a mark on a belt after an image on paper registration process, which includes printing a test pattern, measuring at least one test pattern parameter, detecting a mark on a belt and detecting at least one imaging error associated therewith,... | 05/02/2006 |
| 7023606 | Micromirror array for projection TV In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 04/04/2006 |
| 7023607 | Double substrate reflective spatial light modulator with self-limiting micro-mechanical elements A spatial light modulator including first and second substrate, and an array of deflectable elements disposed within a gap between the first and second substrates is disclosed herein. For electrostatically actuating the deflectable elements, an array of electrodes a... | 04/04/2006 |
| 7017480 | Automatic machine for photoengraving screen printing plates for screen printing high quality compact discs The present invention relates to an automatic machine for photoengraving or photoetching screen printing plates for screen-printing high quality compact discs or CD's, comprising a central control unit operatively coupled to a photoengraving station, including a fra... | 03/28/2006 |
| 7012733 | Double substrate reflective spatial light modulator with self-limiting micro-mechanical elements A spatial light modulator including first and second substrate, and an array of deflectable elements disposed within a gap between the first and second substrates is disclosed herein. For electrostatically actuating the deflectable elements, an array of electrodes a... | 03/14/2006 |
| 7012731 | Packaged micromirror array for a projection display In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 03/14/2006 |
| 7006275 | Packaged micromirror array for a projection display In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 02/28/2006 |
| 6980572 | Wavelength selectable light source A wavelength selectable light source is comprised of a two-dimensional (2-D) array of variable wavelength vertical-cavity surface-emitting lasers (VCSELs), wherein light beams emitted from the VCSELs are coupled into an output optical fiber. The light beams emitted ... | 12/27/2005 |
| 6975441 | Scanning optical system A scanning optical system has a scanning optical apparatus, which is provided with a laser diode, a collimating lens that collimates a laser beam emitted by the laser diode, a support member that holds and supports the laser diode and the collimating lens, a deflect... | 12/13/2005 |
| 6940535 | Multi-beam optical scanning device, and image forming apparatus and color image forming apparatus using the same A multi-beams optical scanning device is constituted such that a width in a main scanning direction of each of a plurality of light beams emitted from a light source unit is wider than a moving area in the main scanning direction in which a deflection facet of a def... | 09/06/2005 |
