Mirror Support Or Alignment Structure Patents (Class 372/107)
  • Patent number: 11009687
    Abstract: A telecentric lens comprises a front optical group adapted to receive rays coming from an observed object, a rear optical group, adapted to convey said rays towards an image plane of a sensor, and a lens aperture positioned between the front optical group and the rear lens group, wherein the lens aperture lies on the focal plane at least of the front optical group. The front optical group is devoid of lenses and is consists of a concave curved primary mirror adapted to receive and reflect the rays coming from the observed object, and at least one secondary mirror adapted to receive and reflect towards the rear optical group the rays coming from the primary mirror.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 18, 2021
    Assignee: OPTO ENGINEERING S.r.l.
    Inventors: Claudio Sedazzari, Andrea Bertolucci
  • Patent number: 10895702
    Abstract: An apparatus including a photonic integrated circuit (PIC) coupled to an optical bench is disclosed. The PIC includes at least one grating coupler disposed thereon and the optical bench includes an optical system disposed thereon. The apparatus also includes an integrated heater at an upper surface of the PIC under the optical bench or at a bottom surface of the optical bench over the PIC. The apparatus also includes a layer of solder disposed between the PIC and the optical bench for coupling the bottom surface of the optical bench to the PIC. In some implementations, the layer of solder is in thermal communication with the integrated heater.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: January 19, 2021
    Assignee: Google LLC
    Inventors: Kevin Yasumura, Lieven Verslegers, Jill Berger
  • Patent number: 10765246
    Abstract: An alignment bracket for a roller blind, comprising a base and a roller tube support securable to the base. First and second coupling members on the base and roller tube support permit an adjustment of the alignment of the roller tube support, and the end of a roller tube mounted thereon, relative to the base. Also provided is a blind fabric alignment device for a roller tube of a multi-tube roller blind. The alignment device comprises a drive coupling body securable to an end of a roller tube of the blind, a driven member mounted to the drive coupling body, a torque transfer mechanism secured to the driven member, and an adjuster. The torque transfer mechanism transfers rotational torque from the driven member to the drive coupling body through the adjuster. The adjuster permits an alteration of the rotational position of the driven member relative to the drive coupling body.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: September 8, 2020
    Assignee: ZMC Metal Coating Inc.
    Inventor: Philip Ng
  • Patent number: 10718593
    Abstract: The present disclosure relates to a firearm which may include a frame with a first outer wall, and a second outer wall opposite the first outer wall. A laser module may be disposed between the first and second outer walls. An alignment pin may be in communication with the first outer wall and may be configured to move the laser module relative to the frame.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 21, 2020
    Assignee: CROSMAN CORPORATION
    Inventors: Jeffrey D. Tuller, Jeffrey W. Mock, John A. Kowalczyk, Jr.
  • Patent number: 10663718
    Abstract: An adjustable mirror system, including a flexible mirror configured to change curvature, a shaft coupled to the mirror, a cylinder, wherein the cylinder is configured to receive the shaft and a fluid, and an actuator coupled to the housing, wherein the actuator increases and decreases the pressure of the fluid in the cylinder to drive the shaft and change the curvature of the flexible mirror.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: May 26, 2020
    Assignee: Thunder Power New Energy Vehicle Development Company Limited
    Inventor: Jia-Wei Ding
  • Patent number: 10574030
    Abstract: An external resonance type laser module includes a quantum cascade laser, a MEMS diffraction grating configured to include a diffraction/reflection portion configured to diffract and reflect light emitted from the quantum cascade laser and return a part of the light to the quantum cascade laser by swinging the diffraction/reflection portion, and a controller configured to control driving of the quantum cascade laser. The controller is configured to pulse-drive the quantum cascade laser such that pulsed light of a second frequency higher than a first frequency at which the diffraction/reflection portion swings is emitted from the quantum cascade laser and a phase of the pulsed light changes each time the diffraction/reflection portion reciprocates m times (m: an integer of 1 or more).
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 25, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Tadataka Edamura, Atsushi Sugiyama, Tatsuo Dougakiuchi
  • Patent number: 10561469
    Abstract: There is provided a robot arm apparatus including an arm unit made up of a plurality of links joined to each other by one or a plurality of a joint unit, the arm unit being connectable to an imaging unit; and a drive control unit that controls driving of the arm unit by causing each joint unit to be driven cooperatively. The drive control unit uses relative position information of a reference position with respect to the arm unit, the relative position information being based on a state of the arm unit and distance information about a distance between the imaging unit and the reference position, to control the driving of the arm unit in a manner that the reference position is positioned on an optical axis of the imaging unit.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: February 18, 2020
    Assignee: SONY CORPORATION
    Inventors: Takara Kasai, Yasuhisa Kamikawa, Yohei Kuroda, Wataru Kokubo, Toshimitsu Tsuboi, Tetsuharu Fukushima, Yasuhiro Matsuda, Atsushi Miyamoto
  • Patent number: 10564361
    Abstract: Beam compressors include separated surfaces having positive and negative optical powers. A surface spacing is selected so that a collimated beam input to the beam compressor is output as a collimated beam. In some examples, beam compressors are situated to compress a laser beam stack that includes beams associated with a plurality of laser diodes. Beam compression ratios are typically selected so that a compressed beam stack focused into an optical waveguide has a numerical aperture corresponding to the numerical aperture of the optical waveguide.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: February 18, 2020
    Assignee: nLIGHT, Inc.
    Inventors: David Martin Hemenway, David C. Dawson, Wolfram Urbanek
  • Patent number: 10556345
    Abstract: A robot arm apparatus including: an arm unit made up of a plurality of links joined by one or a plurality of joint units, the arm unit is connectable to an imaging unit. An internal model including at least geometric information of the arm unit and focus position information of the imaging unit is updated based on internal model information acquired in a state in which the imaging unit is pointed at a reference point in a real space.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: February 11, 2020
    Assignee: SONY CORPORATION
    Inventors: Yasuhisa Kamikawa, Takara Kasai, Yohei Kuroda, Wataru Kokubo, Toshimitsu Tsuboi, Tetsuharu Fukushima, Yasuhiro Matsuda, Atsushi Miyamoto
  • Patent number: 10551727
    Abstract: An illumination device of the invention includes a light source unit including light emitting devices having light emission surfaces, a collimating system having collimating lenses provided to respectively correspond to the light emitting devices of the light source unit, into which lights from the respective light emitting devices enter, a collecting lens into which the lights output from the collimating lenses enter, and a rod lens having a light incident end surface into which the light collected by the collecting lens enters. The light source unit and the collimating system are adapted so that a principal ray of the light output from the light emission surface corresponding to a part of the light emitting devices of the light source unit may enter a position separated from an optical axis of the collimating lens corresponding to the part of the light emitting devices of the light source unit.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: February 4, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Wataru Yasumatsu
  • Patent number: 10505335
    Abstract: A method and a system for pulsed excitation of a nonlinear medium for photon pair generation, he method comprising exciting a single narrow resonance of a nonlinear resonant element with a pulsed laser field, comprising embedding a nonlinear resonant element directly into an external laser cavity and locking the cavity modes.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: December 10, 2019
    Assignee: Institut National de la Recherche Scientifique
    Inventors: Yoann Jestin, Roberto Morandotti, Michael Kues, Benjamin Wetzel, Christian Reimer, Piotr Roztocki
  • Patent number: 10443978
    Abstract: The present disclosure relates to a firearm which may include a frame with a first outer wall, and a second outer wall opposite the first outer wall. A laser module may be disposed between the first and second outer walls. An alignment pin may be in communication with the first outer wall and may be configured to move the laser module relative to the frame.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: October 15, 2019
    Assignee: Crosman Corporation
    Inventors: John A. Kowalczyk, Jr., Jeffrey D. Tuller, Jeffrey W. Mock
  • Patent number: 10439353
    Abstract: A laser apparatus according to the present invention may comprise: a plurality of reflection mirrors which form a resonance path so as for light to be amplified by an induced emission; a medium having a first surface which forms a vertical surface with respect to the resonance path, and a second interface which does not form a vertical surface with respect to the resonance path, and absorbs energy from a light source and amplifies and emits the light; and a saturable absorber having a second surface which forms a vertical surface with respect to the resonance path, and a second interface which does not form a vertical surface with respect to the resonance path, and generates ultrashort pulses. The laser apparatus according to the present invention has the effects of cutting a saturable absorber having a specific crystallographic axis to thereby make polarization capacity in one direction advantageous and minimize propagation loss.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: October 8, 2019
    Assignee: LUTRONIC CORPORATION
    Inventor: Hee Chul Lee
  • Patent number: 10371625
    Abstract: Identification of reflective surfaces as being associated with optical threats is disclosed. A first laser signal is emitted from a first laser system at a first wavelength and a first emission circular polarization orientation. A first signal reflection of the first laser signal from a reflective surface at the first wavelength having a first return circular polarization orientation that is different from the first emission circular polarization orientation is detected. A first return quantification of the first signal reflection, based at least in part on an amount of circular polarization of the first signal reflection, is determined. It is determined that the reflective surface is associated with a threat optic based at least in part on the first return quantification.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 6, 2019
    Assignee: Lockheed Martin Corporation
    Inventors: David R. Twede, Suresh Subramanian, Richard William Guthrie
  • Patent number: 10295306
    Abstract: The present disclosure relates to a firearm which may include a frame with a first outer wall, and a second outer wall opposite the first outer wall. A laser module may be disposed between the first and second outer walls. An alignment pin may be in communication with the first outer wall and may be configured to move the laser module relative to the frame.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: May 21, 2019
    Assignee: Crosman Corporation
    Inventors: John A. Kowalczyk, Jr., Jeffrey D. Tuller, Jeffrey W. Mock
  • Patent number: 10297972
    Abstract: An erbium doped block of glass has input port and reflective end faces arranged such that a signal is launched into the block and is amplified as it traverses the block following a zig-zag path. A laser diode pump is focused to excite erbium ions within the block thereby amplifying the input signal light traversing the block numerous times. A gain flattening filter flattens the gain of the signal being amplified numerous times as the filter is within the path upon each pass across the block.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 21, 2019
    Inventor: Lijie Qiao
  • Patent number: 10276998
    Abstract: In a solid-state laser device and a photoacoustic measurement device including the solid-state laser device, the distance between a laser rod and a flash lamp is narrowed. A shielding lid shields mirrors and an optical path of laser light from the outside. A first portion of a frame body of a laser chamber is exposed from the shielding lid. A flash lamp stored in the frame body of the laser chamber is able to be removed from and inserted into the first portion of the frame body. A thin film portion having a thickness smaller than the thickness of other portions of the shielding lid is provided in at least a part of a region of the shielding lid covering the optical path of a light beam on the outside in a longitudinal direction from the first portion of the frame body of the laser chamber.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: April 30, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kazuhiro Hirota, Hiroyasu Ishii, Takuji Tada
  • Patent number: 10243329
    Abstract: A tunable external resonator laser is mode-hop-free for broadband and has a laser chip which emits light; a lens which collimates the light emitted from the laser chip, a diffraction grating which diffracts the light collimated by the lens, a support body to which the diffraction grating is fixed, and a movable mirror which reflects the light diffracted by the diffraction grating, wherein the diffraction grating is arranged a prescribed distance apart from a Littman-type tunable external resonator laser arrangement in which the movable mirror rotates on a pivot which is the intersection point of the surface of said movable mirror and the surface of the diffraction grating.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: March 26, 2019
    Assignee: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Kiyofumi Muro, Yuji Wakabayashi, Tomohisa Endo, Ken Kitahara
  • Patent number: 10197442
    Abstract: A method of interrogating an absorbing sample includes using a mode-locked laser mode-locked in both a clock-wise (CW) and a counter-clock wise (CCW) direction to generate first and second optical pulses having different repetition rates. One of the first and second optical pulses is directed in a CW direction and the other of the first and second optical pulses is directed in the CCW direction. The first optical pulses are transmitted through the absorbing sample to probe the absorbing sample while the second optical pulses are transmitted through the absorbing sample to act as a local oscillator. An interference pattern produced by interference between the first and second optical pulses is detected after traversing the absorbing sample.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: February 5, 2019
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventor: Khanh Q. Kieu
  • Patent number: 10027085
    Abstract: A Q-switched laser includes a laser cavity including a cavity mirror and an output coupler mirror. The Q-switched laser also includes a doped laser gain material disposed in the laser cavity and a Q-switch including a saturable absorber comprising Fe2+:ZnSe or Fe2+:ZnS.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: July 17, 2018
    Assignee: The UAB Research Foundation
    Inventors: Sergey B. Mirov, Andrew Gallian, Alan Martinez, Vladimir V. Fedorov
  • Patent number: 9972963
    Abstract: The compact, laser cavity with a single-axis scanning element as the optical Q-switch incorporates all optical components required for a short-pulse laser. These optical components are ‘locked’ into alignment forming an optical laser cavity for diode laser or flash lamp pumping. The optical laser cavity does not need optical alignment after it is fabricated. Unfortunately, during the alignment process of the optical laser cavity there are small shifts due to the bonding process of the optical elements. These small shifts introduce alignment errors which results in a decrease in output energy and beam quality. The improvement presented adds a single circular wedge prism that corrects these alignment errors returning the output back to its optimum energy output and beam quality.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: May 15, 2018
    Assignee: The United States of America, as represented by the Secretary of the Army
    Inventors: John E. Nettleton, Nathaniel L. Hough
  • Patent number: 9879945
    Abstract: The present disclosure relates to a firearm which may include a frame with a first outer wall, and a second outer wall opposite the first outer wall. A laser module may be disposed between the first and second outer walls. An alignment pin may be in communication with the first outer wall and may be configured to move the laser module relative to the frame.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: January 30, 2018
    Assignee: Crosman Corporation
    Inventors: Jeffrey D. Tuller, Jr., Jeffrey W. Mock, John A. Kowalczyk, Jr.
  • Patent number: 9871340
    Abstract: A tunable laser including: a reflecting mirror; a partially transmitting mirror; a gain medium energized by a pump source; a pair of mirrors surrounding the gain medium, a first prism and a second prism located between the gain medium and the reflecting mirror; the first prism receives radiation from the gain medium and disperses the radiation to the second prism; the second prism receives and directs the radiation towards an optical element which filters the spatially dispersed radiation based on the position to the second prism, the radiation resonates between the reflecting mirror and the partially transmitting mirror; the second prism is placed on a stage moved by a linear motor such that a desired center wavelength is obtained by moving the second prism to a position so as to allow radiation having the desired center wavelength to resonate between the reflecting mirror and the partially transmitting mirror.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: January 16, 2018
    Assignee: THORLABS, INC.
    Inventors: Peter Fendel, David Sproles, James Easter, Xuan Luo
  • Patent number: 9843164
    Abstract: In various embodiments, laser apparatuses include thermal bonding layers between various components and sealing materials for preventing or retarding movement of thermal bonding material out of the thermal bonding layers.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: December 12, 2017
    Assignee: TERADIODE, INC.
    Inventors: Parviz Tayebati, Michael Deutsch
  • Patent number: 9830937
    Abstract: A laser is configured to emit light along a substrate-parallel plane along a first surface of the laser. An etched facet is on an emitting end of a lasing cavity and an etched mirror is on another end of the lasing cavity. An etched shaping mirror redirects light received from the etched facet in a direction normal to the substrate-parallel plane. A slider comprises an optical input coupler configured to couple the light from the laser into a waveguide of the slider. At least one protrusion is disposed on the laser and at least one recession is disposed on the slider, the at least one protrusion and the at least one recession configured to align the laser with the slider to allow the light to be coupled into the optical input coupler.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: November 28, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Roger L. Hipwell, Jr., Jon Paul Hurley, Scott Eugene Olson, Ralph Kevin Smith, Joseph Michael Stephan
  • Patent number: 9826623
    Abstract: A heat dissipation structure including: a printed circuit board; a first heat-generating element; a second heat-generating element; and a cured product of a thermally conductive curable liquid resin composition, the printed circuit board having a first surface and a second surface that is opposite to the first surface, the first heat-generating element being placed on the first surface, the second heat-generating element being placed on the second surface, the first heat-generating element generating an equal or greater amount of heat than the second heat-generating element, the second heat-generating element being surrounded by the cured product, the first heat-generating element being surrounded by a layer that has a lower thermal conductivity than the cured product.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: November 21, 2017
    Assignee: KANEKA CORPORATION
    Inventors: Aki Koukami, Kazuo Hagiwara, Keisuke Oguma, Kazuhide Fujimoto
  • Patent number: 9780523
    Abstract: A semiconductor laser device comprises a base, a first conductive layer, a second conductive layer, a third conductive layer, and a semiconductor laser chip in this order, each of which has a respective emitting-side end portion. The emitting-side end portion of the first conductive layer is in a common plane with the emitting-side end portion of the base. A thickness of the second conductive layer is greater than a thickness of the first conductive layer. The emitting-side end portion of the second conductive layer is disposed inward of the emitting-end portion of the first conductive layer. The emitting-side end portion of the third conductive layer is in a common plane with the emitting-side end portion of the second conductive layer. The emitting-side end portion of the semiconductor laser chip is disposed outward of the emitting-side end portion of the third conductive layer.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: October 3, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Hideyuki Fujimoto, Masatoshi Nakagaki
  • Patent number: 9720145
    Abstract: An apparatus includes at least one multijunction diode laser situated to emit a plurality of beams along respective mutually parallel propagation axes, each beam having an associated mutually parallel slow axes and associated collinear fast axes, a fast axis collimator situated to receive and collimate the plurality of beams along the corresponding fast axes so as to produce corresponding fast axis collimated beams that propagate along associated non-parallel axes, and a reflector situated to receive the plurality of fast axis collimated beams and to reflect the beams so that the reflected fast axis collimated beams propagate along substantially parallel axes.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 1, 2017
    Assignee: nLIGHT, Inc.
    Inventor: Manoj Kanskar
  • Patent number: 9705289
    Abstract: An apparatus includes at least one multijunction diode laser situated to emit a plurality of beams along respective mutually parallel propagation axes, each beam having an associated mutually parallel slow axes and associated collinear fast axes, a fast axis collimator situated to receive and collimate the plurality of beams along the corresponding fast axes so as to produce corresponding fast axis collimated beams that propagate along associated non-parallel axes, and a reflector situated to receive the plurality of fast axis collimated beams and to reflect the beams so that the reflected fast axis collimated beams propagate along substantially parallel axes.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: July 11, 2017
    Assignee: NLIGHT, INC.
    Inventors: Manoj Kanskar, Raymond Kirk Price, Jay Small, David Martin Hemenway, Zhigang Chen
  • Patent number: 9561560
    Abstract: In accordance with one aspect of the disclosure, a drill and detection system is disclosed. The system may include a drill and a thermal detector spaced apart from the drill. The drill may be directed in a first direction and the thermal detector may be directed in a second direction opposite the first direction.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 7, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Richard F. Norman
  • Patent number: 9543734
    Abstract: A laser arrangement for generating a twice frequency-converted laser radiation is disclosed, comprising the following: an active medium which by radiation of pump light generates a first laser radiation with a first frequency; a first laser resonator inside of which the first laser radiation circulates while resonating; a first non-linear crystal which is arranged inside of the first laser resonator and is provided and established to convert the first laser radiation into a second laser radiation with a second frequency that is higher than the first frequency; a second laser resonator inside of which the second laser radiation circulates while resonating; a second non-linear crystal which is arranged inside of the second laser resonator and is provided and established to convert the second laser radiation into a third laser radiation with a third frequency that is higher than the second frequency, wherein the first laser resonator and the second laser resonator are arranged relative to each other such that th
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: January 10, 2017
    Assignee: CryLaS Crystal Laser Systems GmbH
    Inventors: Eckhard Zanger, Nariman Khajeh Kazroni, Hans-Joachim Pätzold
  • Patent number: 9537284
    Abstract: A system for self-aligning assembly and packaging of semiconductor lasers allows reduction of time, cost and testing expenses for high power density systems. A laser package mounting system, such as a modified TO-can (transistor outline can), has modifications that increase heat transfer from the active laser to a heat exchanger or other heat sink. A prefabricated heat exchanger assembly mounts both a laser package and one or more lenses. Direct mounting of a fan assembly to the package further minimizes assembly steps. Components may be physically and optically aligned during assembly by clocking and other indexing means, so that the entire system is self-aligned and focused by the assembly process without requiring post-assembly adjustment. This system can lower costs and thereby enable the use of high powered semiconductor lasers in low cost, high volume production, such as consumer items.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: January 3, 2017
    Assignee: SemiNex Corporation
    Inventors: David M. Bean, John J. Callahan
  • Patent number: 9502850
    Abstract: A gas laser device includes a housing for enclosing a laser gas. The housing includes a main body having a frame-like structure with openings formed on both sides thereof, and a pair of cover members detachably attached to cover each of the openings. The main body is provided with an upper plate and a lower plate each extending along the optical axis of the laser light, and a pair of side plates respectively connecting both ends of the upper plate and the lower plate. Each of the cover members includes a partially cylindrical member having an arc-like cross-sectional shape in a plane perpendicular to the optical axis and extending along the optical axis, and a pair of side wall members occluding both ends of the partially cylindrical member. The partially cylindrical member has a bellows portion molded into a shape having peaks and valleys each alternating along the optical axis.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: November 22, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kouji Funaoka, Yasunari Matsumoto
  • Patent number: 9466945
    Abstract: A surface-emitting semiconductor laser device includes a substrate and a semiconductor layer disposed on the substrate. The semiconductor layer includes a first semiconductor multilayer film of a first conductivity type, a first spacer layer, an active layer, a second spacer layer, and a second semiconductor multilayer film of a second conductivity type. The first semiconductor multilayer film and the second semiconductor multilayer film form a cavity. A peak of a pattern of a standing wave formed by the cavity and the center of the active layer are located at different positions.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: October 11, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Naoki Jogan, Jun Sakurai, Akemi Murakami, Takashi Kondo, Kazutaka Takeda, Junichiro Hayakawa
  • Patent number: 9461433
    Abstract: A light-emitting device can have high heat dissipation performance from a light-transmitting member and be capable of easily making alignment of the light-transmitting member and an incidence hole for light into the light-transmitting member. The light-emitting device can include: a base; a light-emitting element held by the base; a lens held by the base and disposed above the light-emitting element, configured to condense light emitted from the light-emitting element; a first tubular member disposed on the base; a second tubular member fitted into the first tubular member; a holder allowed to be inserted into the second tubular member and thereby fitted into the second tubular member and having a through hole through which light condensed by the lens passes; and a light-transmitting member formed on the holder so as to block the through hole.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 4, 2016
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventor: Takahiko Nozaki
  • Patent number: 9438009
    Abstract: There is presented a method of providing a wavelength tunable photon source (200), comprising bonding a first element (101) with a first mirror (106), a second element (102) with a second mirror (108) and a third element (103) with a photon emitter together in a structure enclosing an inner volume (214) being a sealed volume, and forming a bonding interface (212) which is gas-tight, so that the first mirror (106) is placed in the inner volume (214) so the first mirror (106) may move within the inner volume (214). The method provides a relatively simple way of obtaining a tunable photon source where the inner volume is sealed. The invention furthermore relates to a corresponding photon source, and use of such photon source.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 6, 2016
    Assignee: Danmarks Tekniske Universitet
    Inventors: Kresten Yvind, Thor Ansbæk
  • Patent number: 9397469
    Abstract: A method of operating a q-switch Er,Yb:YAB laser includes providing a pump bias current to a pump source, the pump source output directed to an Er,Yb:YAB gain medium where the Er,Yb:YAB gain medium is in a resonator cavity. The bias current at or below a lasing threshold of the Er,Yb:YAB gain medium. Providing a pump pulse to the gain medium, the pump pulse over the lasing threshold of the Er,Yb:YAB gain medium, the pump pulse causing the Er,Yb:YAB gain medium to emit a laser pulse. Reducing the pump bias current, wherein the pump current reduction brings the pump bias current to at least below the gain medium lasing threshold, the combination of the pump bias, the pump pulse, and the pump reduction having a current profile.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: July 19, 2016
    Assignee: Voxtel, Inc.
    Inventors: Anmol Nijjar, Joe LaChapelle, George Williams
  • Patent number: 9377611
    Abstract: A light-source includes a planar array of diode-laser bars and a plurality of turning-mirrors arranged to stack beams from the diode-laser bars in the fast-axis direction to provide a first combined beam. Six plane mirrors are arranged to divide the combined beam into three beam-slices, each having one-third the slow-axis width of the first combined beam, and add the beam-slices in the fast-axis direction to provide a second combined beam having about one-third the slow-axis width and three-times the fast-axis length of those of the first combined beam. A spherical mirror and a cylindrical mirror focus the second combined beam into an optical fiber.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: June 28, 2016
    Assignee: Coherent, Inc.
    Inventors: Sergei Govorkov, John H. Jerman
  • Patent number: 9377757
    Abstract: The improvement of the performance of holographic glasses with recorded holograms as measured by a figure of merit of the holographic glasses is disclosed. The improvement in the figure of merit of the holographic glasses is obtained at least in part with the addition of arsenic in the formation of the holographic glasses. The presence of arsenic increases the figure of merit as measured at a wavelength of interest of a holographic glass with a recorded hologram as compared to a holographic glass with a recorded hologram that does not contain arsenic.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: June 28, 2016
    Assignee: PD-LD, INC.
    Inventors: Eliezer M. Rabinovich, Boris L. Volodin, Vladimir S. Ban, Elena D. Melnik
  • Patent number: 9368933
    Abstract: A laser system, the laser comprising a codoped Er,Yb:YAB gain medium, the gain medium within a resonator cavity. The laser system further comprising a pumping source, the pumping source having optical output directed towards the gain medium. The laser system further comprising a laser controller, the laser controller operating the pumping source.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: June 14, 2016
    Assignee: Voxtel, Inc.
    Inventors: Anmol Nijjar, Joe LaChapelle, George Williams
  • Patent number: 9316462
    Abstract: A Small Arms Transmitter (SAT) having two optical sources for use in a military training environment is described. The SAT includes an infrared laser as a first optical source. A visible optical source, such as a visible wavelength laser, is configured as a second optical source. The visible wavelength laser can be configured to be selectively energized during a beam alignment operation. A combiner can be configured to combine the beam from the infrared laser with the beam from the visible wavelength laser to produce a combined beam. Certain techniques and/or materials can be utilized such that the SAT undergoes minimal functional change over a wide range of temperatures.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 19, 2016
    Assignee: Cubic Corporation
    Inventor: Deepak Varshneya
  • Patent number: 9306367
    Abstract: A device for amplifying a laser beam is provided. The device includes at least one amplifier chamber in which a laser-active material is provided, at least one transmitting optical member delimiting the amplifier chamber and being arranged at a tilt angle, ?, with respect to a plane oriented perpendicularly with respect to an optical axis of the laser beam, and at least one detection unit. The laser beam is reflected by the transmitting optical member into a back reflected laser beam, and the detection unit is arranged such that it detects the back reflected laser beam.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 5, 2016
    Assignee: TRUMPF Lasersystems for Semiconductor Manufacturing GmbH
    Inventors: Joachim Schulz, Oliver Mueller
  • Patent number: 9263845
    Abstract: Embodiments of an air-cooled gas laser with heat transfer resonator optics are disclosed herein. A laser configured in accordance with one embodiment includes resonator optics having an optical element, a first heat sink element in surface-to-surface contact with a first side surface of the optical element, a second heat sink element in surface-to-surface contact with a second side surface of the optical element, and a carrier member carrying the optical element and the first heat sink element, and including a forward facing surface in surface-to-surface contact with the backside surface of the optical element. The resonator optics further include first and second biasing elements biasedly coupled to the carrier member and configured to bias the first and second heat sink elements against the first side and second side surfaces, respectively, of the optical element.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: February 16, 2016
    Assignee: Universal Laser Systems, Inc.
    Inventors: Yefim P. Sukhman, Stefano J. Noto, Christian J. Risser, Mikhail E. Ryskin, Jonathan S. Marx, Robert A. Hoeffer, III
  • Patent number: 9182194
    Abstract: A fore grip for a firearm houses a light source and power source. The light source is preferably a laser and the power source is preferably one or more batteries. A first switch is connected to a PCB and can be moved to respective positions that correspond to each of various operating conditions, such as continuously on, continuously off, and on when a second switch is activated.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: November 10, 2015
    Inventor: Larry E. Moore
  • Patent number: 9147995
    Abstract: A laser assembly (10) that generates a beam (12) includes (i) a gain medium (22) that generates the beam (12) when electrical power is directed to the gain medium (22); (ii) a grating (32) positioned in a path of the beam (12); (iii) a grating arm (34) that retains the grating (32); and (iv) a mover assembly (36) that moves the grating arm (34) about a pivot axis (38). The mover assembly (36) includes a coarse mover (344) that makes large scale movements to the grating arm (34), and a fine mover (352) that makes fine movements to the grating arm (34). With this design, the mover assembly (36) can quickly and accurately move the grating (32) over a relatively large range.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 29, 2015
    Assignee: DAYLIGHT SOLUTIONS, INC.
    Inventors: Michael Pushkarsky, John Martin Algots, Satino Marrone, John Craig, Alexander Dromaretsky
  • Patent number: 9120696
    Abstract: The improvement of the performance of holographic glasses with recorded holograms as measured by a figure of merit of the holographic glasses is disclosed. The improvement in the figure of merit of the holographic glasses is obtained at least in part with the addition of arsenic in the formation of the holographic glasses. The presence of arsenic increases the figure of merit as measured at a wavelength of interest of a holographic glass with a recorded hologram as compared to a holographic glass with a recorded hologram that does not contain arsenic.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: September 1, 2015
    Assignee: PD-LD, INC.
    Inventors: Eliezer M. Rabinovich, Boris L. Volodin, Vladimir S. Ban, Elena D. Melnik
  • Patent number: 9077140
    Abstract: The invention refers to a laser device comprising a plurality of linear resonator tubes (12) for a gas to be excited, the resonator tubes being in fluidic communication with each other and forming a common tubular space, connecting elements (20) arranged in corners between adjacent resonator tubes of a common tubular space, excitation means (50) for the resonator tubes for exciting the gas in the resonator tubes for generating a laser light, mirrors (22) arranged in the connecting elements for reflecting laser light between the resonator tubes, and a partially reflecting output coupler (42) for coupling out a laser beam. The resonator tubes are arranged in the shape of a helix, surrounding a free central space. The invention also relates to a method for generating laser light with such a laser device.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: July 7, 2015
    Assignee: ALLTEC ANGEWANDTE LASERLIGHT TECHNOLOGIE GMBH
    Inventors: Kevin L. Armbruster, Brad D. Gilmartin, Peter J. Kueckendahl, Bernard J. Richard, Daniel J. Ryan
  • Publication number: 20150146212
    Abstract: A surface emitting laser includes a lower reflector, an active layer, a gap portion, an upper reflector, and a driving unit. The lower reflector, the active layer, the gap portion, and the upper reflector are arranged in that order. The surface emitting laser is capable of varying a wavelength of emitted light by changing a distance between the upper and lower reflectors. The driving unit moves one of the upper and lower reflectors in an optical axis direction of the emitted light. At least one of the upper and lower reflectors includes a stacked body in which first layers and second layers are alternately stacked, the second layers having a refractive index lower than a refractive index of the first layers, outermost layers of the stacked body being the first layers, and a third layer provided on at least one end of the stacked body.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Toshimitsu Matsuu, Takeshi Uchida
  • Publication number: 20150146210
    Abstract: To provide a wavelength tunable light source which can both ensure operation speed and reduce a drive voltage. A wavelength tunable light source according to the present invention includes a pair of reflectors at least one of which is a movable reflector, an active layer provided between the pair of reflectors, and a beam on part of which the movable reflector is formed and which is supported by a support member. The beam includes a blade part projecting between the support member and the movable reflector in a direction intersecting a stretching direction of the beam, and a center of gravity of the beam in the stretching direction is located at a distance less than half a length of the beam in the stretching direction.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 28, 2015
    Inventor: Koichiro Nakanishi
  • Patent number: 9042424
    Abstract: A silicon-based thermal energy transfer apparatus that aids dissipation of thermal energy from a heat-generating device, such as an edge-emitting laser diode, is provided. In one aspect, the apparatus comprises a silicon-based base portion having a first primary surface and a silicon-based support structure. The silicon-based support structure includes a mounting end and a distal end opposite the mounting end with the mounting end received by the base portion such that the support structure extends from the first primary surface of the base portion. The support structure includes a recess defined therein to receive the edge-emitting laser diode. The support structure further includes a slit connecting the distal end and the recess to expose at least a portion of a light-emitting edge of the edge-emitting laser diode when the edge-emitting laser diode is received in the support structure.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 26, 2015
    Inventors: Gerald Ho Kim, Jay Eunjae Kim