Specific Optical Structure Patents (Class 347/241)
  • Patent number: 10705466
    Abstract: An image forming apparatus includes a photosensitive drum, an image forming unit including an optical scanning device, a cleaning mechanism configured to clean a transparent window of the optical scanning device, and a control unit configured to cause the cleaning mechanism to perform a cleaning operation on the transparent window. The number of pages on which image formation is allowed to be performed for recording sheets in a period between cleaning operations performed by the cleaning mechanism is smaller in a case where image formation is performed on recording sheets in which the amount of generation of paper dust is large than in a case where image formation is performed on recording sheets in which the amount of generation of paper dust is small.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuo Kamei
  • Patent number: 10620583
    Abstract: An image forming apparatus calculates a dew point temperature from an outside air temperature, and determines whether a temperature near an optical unit is equal to or lower than the dew point temperature. In a case where the temperature near the optical unit is equal to or lower than the dew point temperature, the image forming apparatus determines that a condition of occurrence of dew condensation on a surface of a dustproof glass of the optical unit is satisfied or not, and displays a message on an operation display unit instructing a user to clean the surface of the dustproof glass using a cleaning tool.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: April 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yusuke Nemoto
  • Patent number: 10578972
    Abstract: An EUV collector serves for use in an EUV projection exposure apparatus. The collector guides EUV used light emitted by a plasma source region. An overall impingement surface of the collector is impinged upon by radiation emitted by the plasma source region. A used light portion of the overall impingement surface guides the EUV used light. An extraneous light portion of the overall impingement surface is impinged upon by extraneous light radiation, the wavelength of which differs from that of the used light. The used light portion and the extraneous light portion are not congruent. This EUV collector has increased efficiency can involve reduced production costs.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: March 3, 2020
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Holger Kierey, Johannes Zellner
  • Patent number: 10551624
    Abstract: Apparatus and methods for coupling an optical beam from an optical source to a hi-tech system are described. A compact, low-cost beam-shaping and steering assembly may be located between the optical source and hi-tech system and provide automated adjustments to beam parameters such as beam position, beam rotation, and beam incident angles. The beam-shaping and steering assembly may be used to couple an elongated beam to a plurality of optical waveguides.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: February 4, 2020
    Assignee: Quantum-Si Incorporated
    Inventors: Jonathan M. Rothberg, Paul E. Glenn, Jonathan C. Schultz, Benjamin Cipriany
  • Patent number: 10534209
    Abstract: A near-eye display (NED) includes a source assembly that emits image light, a waveguide-based display assembly, and a controller coupled to the waveguide-based display assembly, and an optical assembly. The waveguide-based display assembly includes a liquid crystal (LC) waveguide, an input area, and an output area. The LC waveguide comprising a first glass layer, a second glass layer, and a LC layer between the first and second glass layers. The LC waveguide propagates the image light in-coupled via the input area in accordance with emission instructions toward the output area that out-couples the image light to a user's eye. The controller generates the emission instructions and provides the emission instructions to the LC waveguide for generating the image light of substantially uniform brightness.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: January 14, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Yijing Fu, Lu Lu, Pasi Saarikko
  • Patent number: 10491776
    Abstract: An exposure device includes a plate member, a plurality of light-emitting elements, and an optical system. The plate member extends in both a first direction and a second direction intersecting with the first direction. The light-emitting elements are disposed on the plate member side by side in the first direction. The light-emitting elements emit respective light beams in the second direction. The optical system is disposed on the plate member and faces the light-emitting elements in the second direction. The optical system performs imaging of the light beams emitted by the respective light-emitting elements.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 26, 2019
    Assignee: Oki Data Corporation
    Inventor: Takuma Ishikawa
  • Patent number: 10397452
    Abstract: A vehicular camera apparatus includes a lens and a hood provided below the lens. The hood includes a rib structure and a hole structure. The rib structure is constituted of ribs that each protrude upward from a bottom wall of the hood and are arrayed in an optical axis direction of the lens. Each of the ribs has a front surface on the opposite side to the lens and a rear surface on the lens side. The front surface makes an acute angle with an imaginary plane that contains an upper surface of the bottom wall. The rear surface makes an obtuse angle with the imaginary plane. The hole structure is constituted of holes formed in the bottom wall. Each of the holes is formed along a corresponding one of the ribs and includes, at least, a projection of the front surface of the corresponding rib on the imaginary plane.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: August 27, 2019
    Assignee: DENSO CORPORATION
    Inventors: Takeshi Kazama, Tatsuhiko Futamura
  • Patent number: 10241330
    Abstract: An image generation device having: a spatial light modulator; a source of light; a beam deflector; an illumination waveguide and an image transport waveguide, each waveguide containing at least one switchable grating; and a coupler for directing scanned light into a first set of TIR paths in said illumination waveguide. A switchable grating in the illumination waveguide diffracts light onto the SLM, a switchable grating in the image transport waveguide diffracting image-modulated from the SLM into a waveguide path.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: March 26, 2019
    Assignees: DigiLens, Inc., Rockwell Collins, Inc.
    Inventors: Milan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant
  • Patent number: 10238283
    Abstract: A novel surgical lens system including a lens and a reflective element. The lens is placed on, or above, a cornea of an eye of a subject for enabling inspection of the eye. The reflective element is incorporated into the lens. The reflective element reflects a light beam toward the eye of the subject. The reflective element increases the divergence of the light beam, such that the divergence of the reflected light beam is larger than the divergence of the light beam. The light beam is emitted by a non-invasive light source positioned externally to the eye.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 26, 2019
    Assignee: ELBIT SYSTEMS LTD.
    Inventors: Abraham Zeitouny, Ron Schneider
  • Patent number: 10191288
    Abstract: An optical system for transmitting a source image is provided. Light having a field angle spectrum emanates from the source image. The optical system includes an optical waveguide arrangement, in which light can propagate by total internal reflection. The optical system also includes a diffractive optical input coupling arrangement for coupling the light emanating from the source image into the optical waveguide arrangement. The optical system further includes a diffractive optical output coupling arrangement for coupling the light that has propagated in the optical waveguide arrangement out from the optical waveguide arrangement. The disclosure also provides related methods.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: January 29, 2019
    Assignee: Carl Zeiss AG
    Inventors: Wolfgang Singer, Bernd Kleemann, Artur Degen
  • Patent number: 10065432
    Abstract: An optical scanning device includes a rotating polygon mirror, a light source that irradiates first and second light beams at one side of the rotating polygon mirror and irradiates third and fourth light beams at the other side thereof, a first optical element that reflects the first light beam and allows the second light beam to pass therethrough, a second optical element that reflects the second light beam, a third optical element that allows the third and fourth light beams to pass therethrough, and a fourth optical element that reflects the fourth light beam. The second light beam is a light beam corresponding to yellow, the first, the third, and the fourth light beams are light beams corresponding to three colors other than the yellow. Between the third and fourth optical elements, a scanning lens is arranged. Between the first and second optical elements, a scanning lens is not arranged.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 4, 2018
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Hiroto Konishi
  • Patent number: 10048429
    Abstract: An illuminator apparatus uses positional offset of an array of light emitting areas and a lens array to control resulting direction and diffusion of a combined overall beam of light. Specifically, translation of the lens array relative to the light emitting area array enables steering of the overall beam, and rotation of lens array relative to the light emitting area array controls overall beam divergence.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: August 14, 2018
    Assignee: The Regents of the University of California
    Inventors: Joseph Ford, William Maxwell Mellette
  • Patent number: 10042121
    Abstract: An optical device includes a plurality of optical ports for receiving optical beams. The optical device also includes a plurality of toric micro lenses each receiving one of the optical beams from a respective one of the optical ports. A dispersion element is provided for spatially separating in a dispersion plane the optical beam into a plurality of wavelength components. At least one focusing element is provided for focusing the plurality of wavelength components. A programmable optical phase modulator is also provided for receiving the focused plurality of wavelength components. The modulator is configured to selectively direct the wavelength components to prescribed ones of the optical ports. The toric lenses impart positive power to the optical beams in the port plane and negative optical power to the optical beams in a plane orthogonal to the port plane.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: August 7, 2018
    Assignee: Nistica, Inc.
    Inventor: Mitchell E. Haller
  • Patent number: 9969121
    Abstract: A multifunctional 3D scanning/printing apparatus is disclosed in the present invention, wherein the multifunctional apparatus comprises both 3D scanning and printing functions, by sharing a Digital Light Processing (DLP) projector or using a beam splitter (for example, a transflective mirror or a flipping mirror, etc.) to achieve a configuration for all sorts of 3D scanning and 3D printing equipment with the required elements within the same apparatus, and uses the accuracy-increasing apparatus (for example, a prism, a lenticular lens, other asymmetric lenses, etc.) so that the measurement accuracy from the two image sensors will not be restricted by the limited space.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 15, 2018
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLGY
    Inventors: Jeng-Ywan Jeng, Tzung-Han Lin, Yi-Jane Chen
  • Patent number: 9946187
    Abstract: A method of controlling a print engine, the method comprising: printing a first test image including a number of scans of printing components at a first setting of the array of printing components; printing at least a second test image by a number of scans of the printing components at a modified setting of the array of printing components, the modified setting being different from the first setting, wherein the modified setting provides a modified setting for each one of the printing components which is varied according to the position of the respective printing component in the array; optically scanning the printed test images and determining the distinctiveness of a scan band within the printed test images for each one of the test images; and deriving an optimum setting of the array of printing components from a comparison of the determined distinctiveness.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: April 17, 2018
    Assignee: HP Indigo B.V.
    Inventors: Tsafrir Yedid Am, Haim Vladomirski, Pavel Blinchuk
  • Patent number: 9927732
    Abstract: Provided is a light scanning apparatus, including: a light source; a rotary polygon mirror; an optical member guiding a light beam; an optical box on which the light source is mounted and which contains the rotary polygon mirror and the optical member; a cover covering an opening of the optical box; a fixation unit fixing the cover on the optical box; the cover having a dust-proof member which is sandwiched between the cover and a side wall of the optical box; and the dust-proof member including an abutment portion against which the side wall is brought into abutment, and non-abutment portions provided on both sides of the abutment portion and separated from the side wall, and the dust-proof member including a groove in one of the non-abutment portions which is located on a side opposite to another one located on a side where the fixation unit is provided.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 27, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshitaka Otsubo
  • Patent number: 9921482
    Abstract: The present invention relates to an exposure device which forms an image of a pattern on a mask onto a substrate with microlens arrays to expose the substrate, and reduces a size of an lighting unit which emits an exposure light. Microlens arrays include plural microlenses which are arranged two-dimensionally and arranged in a direction intersecting a movement direction. Lighting unit includes an LD array bar in which plural laser diodes are arranged, and lighting optical system which transforms plural emitted lights emitted from the plural laser diodes into an exposure flux having a slit form. The slit form spreads across plural pieces of the microlenses, and which, with respect to the movement direction, is limited in an area not reaching a microlens arranged in an adjacent row in the movement direction, and illuminates plural microlenses arranged in a row with an exposure light by the exposure light flux.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: March 20, 2018
    Assignee: V TECHNOLOGY CO., LTD.
    Inventors: Koichi Kajimaya, Michinobu Mizumura, Makoto Hatanaka
  • Patent number: 9899052
    Abstract: A recording method including: emitting laser light from an optical fiber array to record an image formed of writing units with moving a recording target and the optical fiber array relatively using a recording device including a plurality of laser light-emitting elements and an emitting unit including the optical fiber array, in which a plurality of optical fibers configured to guide laser light emitted from the laser light-emitting elements are aligned, wherein a maximum length of the writing unit along a sub-scanning direction is controlled with set values of: a duty ratio and a cycle of a pulse signal input to the emitting unit; recording energy applied to the recording target; and a spot diameter of the laser light, to record with overlapping an edge of the writing unit with an edge of the adjacent writing unit in the sub-scanning direction.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 20, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Satoshi Arai, Yoshihiko Hotta, Kazuyuki Uetake, Ichiro Sawamura, Tomomi Ishimi, Yasuroh Yokota
  • Patent number: 9878490
    Abstract: The invention relates to a method for laser welding two plastic components A, B brought into contact at least in the joining area, wherein component B facing away from the laser radiation consists of a plastic matrix with a white pigmentation of 1.5 5-20 wt.-%, and component A facing the laser radiation, through which the laser beam passes in the welding process, exhibits a plastic matrix. For a given laser wavelength the travel distance of the laser beam through the component A measures at most 10 mm, and given a white pigmentation of the component A in wt.-%, the product of the travel distance of the laser 10 beam through the component A in mm and white pigmentation in wt.-% is less than 1.25, and the travel distance of the laser beam through the component A measures at most 1 mm.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: January 30, 2018
    Assignee: EMS-PATENT AG
    Inventors: Jens Butzke, Stefan Würthner, Nikolai Lamberts, Pierre Dübon, Sabine Bertram, Heinz Caviezel
  • Patent number: 9747815
    Abstract: A variety of tools for demonstrating the mathematical properties is disclosed. In one embodiment, a demonstrator uses the tools to illuminate geometric relationships between objects in two and three-dimensional space. The tools may be a stationary exhibit or collected into a portable kit. Whether portable or stationary, the tools provide an easy to use, multi-functional, and visually captivating vehicle for demonstration of geometric properties.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: August 29, 2017
    Assignee: Museum of Mathematics
    Inventors: Glen T. Whitney, George Hart, Cindy Lawrence, Timothy Nissen, Chenteh Kenneth Fan
  • Patent number: 9720207
    Abstract: A light scanning apparatus, including: a light source; a deflector having a rotary polygon mirror configured to deflect the light beam emitted from the light source, and a motor configured to rotate the polygon mirror; a plurality of reflecting mirrors configured to reflect the light beam to the photosensitive member; and an optical box on which the light source is mounted, wherein the optical box has an installation wall on which the deflector is installed and a support wall positioned on a side of the photosensitive member with respect to the polygon mirror, the support wall being provided with a support portion configured to support at least one reflecting mirror, a stepped portion having a plurality of steps is formed between the installation wall and the support wall, and a back surface of the stepped portion has a shape following an inside surface of the stepped portion.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: August 1, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasuaki Otoguro, Takehiro Ishidate
  • Patent number: 9444074
    Abstract: Various embodiments may relate to a method for producing an optoelectronic component. The method may include increasing a refractive index of a substrate in at least one region at at least one predefined position in the substrate in such a way that the region having an increased refractive index extends as far as a surface of the substrate, and forming an electrode layer on or above the surface of the substrate at least partly above the region having an increased refractive index.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 13, 2016
    Assignee: OSRAM OLED GMBH
    Inventors: Arndt Jaeger, Daniel Steffen Setz
  • Patent number: 9421712
    Abstract: The present invention provides a method for stably and robustly laser-welding transparent resins together without compromising transparency. Before laser welding, the joining surface of at least a second transparent resin is subjected to photooxidation, thereby reducing the laser transmittance without reducing the visible light transmittance. A laser beam in the ultraviolet region at a wavelength of 400 nm or less, or a laser beam with a pulse width of 10 ps or less is irradiated while the second transparent resin is pressurized to perform laser welding.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: August 23, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Arai, Takeshi Senda
  • Patent number: 9395340
    Abstract: A method of scanning a sample includes simultaneously forming a plurality of co-linear scans. Each scan is formed by a sweep of a spot by an acousto-optical device (AOD). The co-linear scans are separated by a predetermined spacing. A first plurality of swaths are formed by repeating the simultaneous forming of the plurality of co-linear scans in a direction perpendicular to the co-linear scans. The first plurality of swaths have an inter-swath spacing that is the same as the predetermined spacing. A second plurality of swaths can be formed adjacent to the first plurality of swaths. Forming the second plurality of swaths can be performed in an opposite direction to that of the first plurality of swaths or in a same direction. An inspection system can implement this method by including a diffractive optical element (DOE) path after a magnification changer.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 19, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: Jamie Sullivan, Wenjian Cai, Yevgeniy Churin, Ralph Johnson, Meier Yitzhak Brender, Mark Shi Wang, Rex Runyon, Kai Cao
  • Patent number: 9377621
    Abstract: The light scanning apparatus includes: a deflection element including first and second deflection surfaces; a rotor including a top surface facing the deflection element; a first imaging optical system including a first imaging lens; a second imaging optical system including a second imaging lens arranged to face first imaging lens; first and second shielding members. The first shielding member is arranged at a position where an edge portion thereof on a side closer to top surface in a sub-scanning direction blocks light reflected by first imaging lens. The second shielding member is arranged at a position where an edge portion thereof on a side closer to top surface in sub-scanning direction blocks light that has passed by first shielding member and been reflected by top surface.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: June 28, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shuichi Kurokawa
  • Patent number: 9350957
    Abstract: A photoelectric conversion device includes a semiconductor substrate, an insulating layer provided on the semiconductor substrate, an electrode provided on the insulating layer, a photoelectric conversion film provided on the electrode for converting received light to charges, a line connected between the electrode and the semiconductor substrate, a first planar electrode provided in the insulating layer and connected to the electrode, and a second planar electrode provided in the insulating layer between the first planar electrode and the semiconductor substrate.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 24, 2016
    Assignee: Rohm Co., Ltd.
    Inventor: Hiroshi Nishiyama
  • Patent number: 9217863
    Abstract: A scanning optical system includes a light source including light emission points, a deflector for deflecting a beam in main scanning direction, an optical element for guiding the beam from the light source to the deflector, and a stop for limiting the beam from the optical element, sets the followings appropriately: distance from the light source to the stop; focal length of the optical element; distance in main scanning direction from an intersection of optical axis and the light source at a farthest light emission point from the optical axis in main scanning direction; stop aperture diameter in main scanning direction; total angle at half maximum of a far-field pattern of emitted light; and angle between a marginal ray within main scanning section at the farthest light emission point from the optical axis in main scanning direction and a ray of a maximum intensity.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: December 22, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masayasu Teramura
  • Patent number: 9174459
    Abstract: An imaging system includes incidence faces composed of optical faces having an image focusing function; prisms; and exit faces. The incidence faces are arranged with a first pitch along a first axial direction. The prisms are arranged with a second pitch along the first axial direction. The exit faces are arranged with a third pitch along the first axial direction. The first axial direction is set as a Y direction. A normal line direction of a face top of an optical face of the incidence face in a plane perpendicular to the first axial direction is set as a X direction. A direction perpendicular to the Y direction and the X direction is set as a Z direction. In a XZ cross-section plane, a width of the prism in the Z direction is smaller than a width of optical face of the incidence face in the Z direction.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: November 3, 2015
    Assignee: Ricoh Company, Ltd.
    Inventor: Shigeaki Imai
  • Patent number: 9170523
    Abstract: An optical scanning apparatus for optically scanning at least one scanning target surface, the optical scanning apparatus including: a light source; a light-flux dividing unit disposed on a main optical path of a main light flux emitted from the light source, and the light-flux dividing unit configured to spatially divide the main light flux; an optical deflector disposed on a divided optical path of the divided light flux, and the optical deflector configured to deflect the divided optical path; an optical path opening/closing switch unit disposed on the divided optical path between the light-flux dividing unit and the optical deflector, and the optical path opening/closing switch unit configured to interrupt or pass at least one of the divided optical path; and a controller configured to control operation of interrupting or passing the at least one of the divided optical path by the optical path opening/closing switch unit.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: October 27, 2015
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Hiroshi Johno, Keiichi Serizawa, Daisuke Yoshida, Kazunori Watanabe
  • Patent number: 9110399
    Abstract: An optical writing device for forming an electrostatic latent image on a photoreceptor by exposing the photoreceptor to light modulated in accordance with image data. The optical writing device has: a substrate; a light-emitting-element array including a plurality of light-emitting elements supported by the substrate to be arranged in a main-scanning direction; and a light-receiving-element array substantially in parallel to the light-emitting-element array, the light-receiving-element array including a plurality of light-receiving elements supported by the substrate to be arranged in the main-scanning direction. For light-quantity measurement of one of the light-emitting elements, at least an output value output from one of the light-receiving elements of which center is located in a different position, with respect to the main-scanning direction, from a center of the one of the light-emitting elements is used.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 18, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Satoshi Masuda, Yoshikazu Watanabe, Makoto Obayashi, Masayuki Iijima, So Yano
  • Patent number: 9030519
    Abstract: An optical writing device includes a light source, an optical deflector that deflects and scans light from the light source, a pre-deflector optical system that guides the light from the light source to the deflector, a post-deflector optical system that guides the scanned light to a target surface, a cover covering the deflector and including a first opening and a second opening provided at different positions, and a housing housing these optical elements. Light traveling from the light source to the deflector and the light scanned by the deflector are transmitted through the first opening but not through the second opening. During the rotation of the deflector, a forced inflow of air flowing from outside to inside the cover is generated in the first opening, and a discharged airflow flowing from inside to outside the cover is generated in the second opening.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: May 12, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Susumu Narita, Kazunori Bannai, Takeshi Yamakawa, Kazunori Watanabe
  • Patent number: 9007660
    Abstract: The invention relates to a marking and/or scanning head comprising a plurality of receiving spaces in which individual marking and/or sensing devices can be arranged for marking and/or scanning an object, wherein the receiving spaces are arranged in at least two sub-arrays, wherein at least one sub-array is movable and/or rotatable with regard to at least one other sub-array. The invention further relates to a marking and/or scanning apparatus and a method for operating a marking and/or scanning head or apparatus.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 14, 2015
    Assignee: Alltec Angewandte Laserlicht Technologie GmbH
    Inventors: Peter Joerg Kueckendahl, Daniel Joseph Ryan
  • Patent number: 8988477
    Abstract: A laser label printer for use with a laser markable medium includes a laser-diode fiber-coupled to an optical train, which includes a focusing lens for focusing the radiation on the medium. The focusing lens is traversed across the medium, with incremental motion of the medium between traverses, for line by line printing of the label. The printer includes a feature for protecting the focusing lens from contamination, and self-diagnostic and adjustment features.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: March 24, 2015
    Assignee: Coherent, Inc.
    Inventors: Sergei Govorkov, John H. Jerman
  • Patent number: 8970650
    Abstract: An image forming apparatus is provided that reduces main scanning jitter with a simple configuration and performs light amount control with high accuracy. The image forming apparatus includes: a laser emitting luminous flux; a main-scanning aperture portion shaping the luminous flux; a beam splitter splitting the luminous flux passed through the main-scanning aperture portion into a reflected beam and a transmitted beam; a rotary polygon mirror deflecting the transmitted beam so that the transmitted beam scans the surface of a photosensitive drum; and an optical box in which the laser, the main-scanning aperture portion, the beam splitter and the rotary polygon mirror are disposed. The main-scanning aperture portion is disposed so as not to block a deflected and transmitted beam. The beam splitter abuts against the main-scanning aperture portion so as not to block a deflected and transmitted beam deflected, and is positioned by abutting against the main-scanning aperture portion.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuyuki Iwamoto
  • Patent number: 8928716
    Abstract: An optical scanning device includes: a light source device that emits five light beams corresponding to four basic colors and a single specific color; and five scanning optical systems corresponding the five light beams. One light beam in a first waveband among the light beams corresponding to the four basic colors enters one scanning optical system of the five scanning optical systems. The one scanning optical system includes a dichroic mirror that transmits a light beam in a second waveband different from the first waveband. An angle ?b formed between a normal to the incidence plane of the dichroic mirror and orthogonal projection to an assumed plane orthogonal to the main scanning corresponding direction of the incident path of the light beam to the incidence plane of the dichroic mirror is set at an angle of 0° or more and an angle of 45° or less.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: January 6, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Tadashi Nakamura, Toshiaki Tokita, Yukio Itami, Taku Amada, Shingo Tachikawa
  • Patent number: 8922614
    Abstract: A light scanning unit and an electrophotographic image forming apparatus are provided. The light scanning unit includes a light source emitting the light beams according to an image signal, an incident optical system including a flux-limiting element limiting the flux of light beams emitted by the light source, an optical deflector deflecting the light beams emitted by the light source in a main scanning direction, and an image forming optical system including a scanning optical element imaging the light beams deflected by the optical deflector on a scanning target surface, the light scanning unit forming an electrostatic latent image by scanning the light beams to the scanning target surface of the image bearing member. The scanning optical element of the scanning optical elements of the image forming optical system is eccentrically arranged from a central optical axis of the image forming optical system in a sub-scanning direction.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: December 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Wan-Chin Kim
  • Patent number: 8917304
    Abstract: In accordance with an embodiment, an optical scanning apparatus for exposing a photoconductor includes a light source, a deflecting device, an imaging optical system and a light-guiding optical system. The light source configured to emit a light beam. The deflecting device configured to deflect and scan the light beam from the light source. The imaging optical system configured to form an image by using the deflected and scanned light beam on the photoconductor. The light-guiding optical system configured to guide the light beam passing through the imaging optical system to a photodetector.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: December 23, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Yasushi Kuribayashi
  • Patent number: 8918009
    Abstract: An image forming apparatus includes a main body of the image forming apparatus; at least one image forming unit disposed in the main body; a light scanning unit that is disposed in the main body and scans light to form an electrostatic latent image on a photosensitive medium of the at least one image forming unit; a window open-closing shutter that is disposed to slidably move on a surface of the light scanning unit from which light emits, and moves between an open position where a light moving path is opened and a blocking position where the light moving path is blocked; a shutter operating lever that is disposed in the main body, and activates the window open-closing shutter to be positioned at either of the open position and the blocking position; and a pressure member that is disposed in the main body and presses the shutter operating lever.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-jo Lee, Gun-wook Kim, Jin-ho Park, Young-min Yoon
  • Patent number: 8902268
    Abstract: An optical scanning apparatus capable of fixing an optical member using a plate spring without forming a die cut hole and thus having high dust-proof performance includes a mirror supporting portion supporting a reflection mirror, and a projecting portion configured to form a gap between the reflection mirror supported on the mirror supporting portion and itself, and to deform the plate spring with the reflection mirror, and the projecting portion is provided with a cut hole for engaging the plate spring.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: December 2, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuaki Otoguro, Takehiro Ishidate
  • Patent number: 8879832
    Abstract: When an imaging device receives an image file that includes a color barcode, a processor of the imaging device and/or a remote processor may decode the barcode by identifying informational elements and calibration elements in the barcode. When the calibration elements are detected, one or more color model parameters are determined, and a color model is developed. When an informational element is then detected, a color value is determined for the informational element, the color model is applied using the color model parameters to yield an adjusted color value for the informational element, and the adjusted color value is used to decode the color barcode.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: November 4, 2014
    Assignee: Xerox Corporation
    Inventors: Edul N. Dalal, Wencheng Wu
  • Patent number: 8872872
    Abstract: An optical scanning apparatus, including: light sources; a deflector configured to deflect beams emitted from the light sources; and imaging optical systems configured to focus the beams deflected by a deflecting surface of the deflector on surfaces to be scanned, respectively, wherein: the beams entering the deflecting surface are P-polarized beam; the optical scanning apparatus further includes at least one reflection optical element reflecting a beam in a sub-scanning cross section on each of optical paths from the deflecting surface to the surfaces to be scanned; the optical paths include first and second optical paths having different numbers of the reflection optical elements from each other; and the optical scanning apparatus further includes an adjustor configured to adjust an output of a light source corresponding to at least one of the first and the second optical paths from among the light sources so that predetermined conditions are satisfied.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: October 28, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Jun Igarashi
  • Patent number: 8848013
    Abstract: An optical scanning device, arranged on one side of at least two to-be-scanned members in a second direction, and the two to-be-scanned members being arranged in a first direction perpendicular to the second, includes: an illuminating system that emits beams including a first beam and a second beam whose polarization directions are different from each other; an optical deflector that deflects the beams; and a scanning optical system that includes a polarization separation element that transmits one of the first and second beams and reflects the other; a first mirror group including reflecting mirrors for guiding the first beam to a to-be-scanned member; and a second mirror group including reflecting mirrors for guiding the second beam to a to-be-scanned member. Last-stage reflecting mirrors in the first and second mirror groups are arranged on one side of the beams deflected by the optical deflector in the second direction.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: September 30, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Kenichiroh Saisho, Toshiaki Tokita, Nobuaki Kubo, Seizo Suzuki
  • Patent number: 8842147
    Abstract: An optical scanning device includes: light sources emitting first beams having colors; a beam splitting unit splitting the first beams into second beams; a deflecting unit including reflecting members, each corresponding to one of the second beams and each performing deflection scanning of the second beams; an optical system for image formation of the second beams scanning on target surfaces that have been assigned with colors corresponding to the first beams; a detecting unit for detecting which of the reflecting member corresponds to the second beam; an interchanging unit for obtaining data of a lines corresponding to each of the first beams and interchanging the data of the lines based on a detection result; and a light source control unit for controlling the light sources in such a way that the light sources emit the first beams in accordance with the data of the lines interchanged.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: September 23, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Satoshi Ohmiya
  • Patent number: 8823764
    Abstract: An optical writer includes a housing, a light source, a deflector, and a plurality of optical elements. The housing includes a plurality of surfaces, one of which includes a substantially flat portion having an opening formed therein and a curved portion curved in the shape of an arc of a circle in cross-section. The light source is enclosed within the housing and projects light through the opening and onto a target. The deflector is enclosed within the housing and deflects the light projected from the light source in a main scanning direction. The plurality of optical elements is enclosed within the housing and directs the light deflected by the deflector onto the target.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: September 2, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoya Fujii, Noboru Kusunose, Yoshinobu Sakaue
  • Patent number: 8791973
    Abstract: There is provided an image forming apparatus including plural photosensitive members on which developer images are formed by supplying developer to electrostatic latent images, respectively, an exposure device which illuminates light beams onto surfaces of the photosensitive members to form the electrostatic latent images, respectively. The developer images on the respective photosensitive numbers are transferred to a transferred medium which is moved in a moving direction while contacting the respective photosensitive members. The exposure device is configured such that a beam diameter of light beam exposing a most-upstream photosensitive member in the moving direction on a surface of the most-upstream photosensitive member is larger than a beam diameter of light beam exposing a most-downstream photosensitive member in the moving direction on a surface of the most-downstream photosensitive member.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: July 29, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuichi Matsushita, Toshio Furukawa, Yosuke Sugiyama, Minoru Matsuura
  • Patent number: 8785815
    Abstract: Device for processing a substrate are described herein. Devices can include a radiation source and an aperture positioned to receive radiant energy from the radiation source. The aperture can include one or more members, and one or more interfering areas, wherein the interfering areas surround a transmissive area. The one or more structures can affect transmission of radiant energy through a portion of the transmissive area of the aperture. Structures disposed on the aperture can reduce or redirect transmission to provide for more uniform overall transmission of radiant energy through the aperture.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: July 22, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Amikam Sade, Stephen Moffatt, Bruce E. Adams
  • Patent number: 8786656
    Abstract: A lens array, a linear light exposure device, and an optical apparatus including the linear light exposure device. The lens array includes: an image side lens array unit in which a plurality of lens cells are arranged in at least one line along an arrangement direction to have optical axes parallel with each other; and a light blocking unit provided on an incidence surface of the image side lens array unit, the light blocking unit having light transmission regions, through which light is transmitted toward each lens cell, and blocking regions in regions other than the light transmission regions, wherein each lens cell of the image side lens array unit has a square formed effective optical region.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: July 22, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Wan-chin Kim
  • Patent number: 8773488
    Abstract: The invention provides an exposure head including: a light emitting unit; an imaging unit that allows light from the light emitting unit to enter through an incidence plane and exit from an exit surface so as to form an image at a predetermined position; and a transparent layer provided between the light emitting unit and the imaging unit, while contacting each of the light emitting unit and the imaging unit; the transparent layer having a thickness such that an optical distance between the light emitting unit and the incidence plane of the imaging unit becomes a working distance of the imaging unit.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: July 8, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yohei Nishino, Hirohito Yoneyama, Takashi Matsumura, Yoshinori Yamaguchi, Kiyokazu Mashimo, Katsuhiro Sato
  • Patent number: 8730290
    Abstract: A light source includes a plurality of light-emitting units arranged in a two-dimensional array. An optical element changes divergence angles of laser beams from the light-emitting units. A splitting element splits a part of each of the laser beams passing through the optical element. A compensating element compensates for a fluctuation in the divergence angle of each of the laser beams incident on the splitting element due to a change of temperature. A light-receiving element receives laser beams split by the splitting element. The light source, the optical element, the splitting element, the compensating element, and the light-receiving element are integrally supported.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: May 20, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Nobuaki Kubo
  • Patent number: 8723910
    Abstract: An optical scanning device includes a light source, a deflector for deflecting and scanning the beams of light, an imaging optical system, a housing, a synchronization sensor, a circuit board on which the light source and the synchronization sensor are mounted, and an adjustment mechanism. The adjustment mechanism enables an adjustment of an interval between beams of light respectively emitted from the plurality of emission points on a surface to be scanned. The circuit board includes a first part on which the light source is mounted, a second part on which the synchronization sensor is mounted and an intermediate part between the first and second parts. The first part is arranged outside the housing, the second part is arranged inside the housing and the intermediate part passes through a wall surface of the housing. The adjustment mechanism fixes the light source using the housing with the interval adjusted.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 13, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Chika Sawamoto