Lens Or Lens System Patents (Class 372/101)
  • Patent number: 10901143
    Abstract: A light pipe assembly includes a light pipe having one or more first crush ribs extending outwardly from an outer surface of the light pipe. The light pipe assembly further includes a light pipe housing having one or more second crush ribs extending into a cavity of the light pipe housing. When the light pipe is positioned in the cavity of the light pipe housing, the light pipe is retained in the light pipe housing by the one or more first crush ribs and the one or more second crush ribs. The one or more first crush ribs come in contact with and press against the one or more second crush ribs when the light pipe is positioned in the cavity of the light pipe housing.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: January 26, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: David Schattner, Kyle Proctor
  • Patent number: 10855049
    Abstract: A pulse laser apparatus (100) for creating laser pulses (1), in particular soliton laser pulses (1), based on Kerr lens mode locking of a circulating light field in an oscillator cavity (10), comprises at least two resonator mirrors (11, 12, . . .
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: December 1, 2020
    Assignees: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Ludwig-Maximilians-Universitaet Muenchen
    Inventors: Oleg Pronin, Ferenc Krausz, Jonathan Brons
  • Patent number: 10845727
    Abstract: An optical scanning apparatus includes a first light source, a second light source, a first driving element, a second driving element, a rotatable polygonal mirror, a first scanning optical portion, a second scanning optical portion, a detecting element, and a circuit board. The first light source, the first driving element and the detecting element are arranged in a named order on the circuit board. The following relationship is satisfied: ?1>?2, where ?1 is an angle formed by a direction of the first laser light and a first direction, and ?2 is an angle formed by a direction of the second laser light and a second direction.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: November 24, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mitsuhiro Obara
  • Patent number: 10811835
    Abstract: A laser frame for holding a plurality of optical components includes a first flexure structure for adjustably holding a first one of the optical components, and a first cellular structure for supporting and cooling a second one of the optical components. The first flexure structure and the first cellular structure are each a unitary structure formed by additive manufacturing. Also, a laser frame for holding an optical component includes a passive cooling cellular structure for supporting and cooling the optical component. The passive cooling cellular structure has a non-uniform density, and the laser frame is a unitary structure formed by additive manufacturing.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: October 20, 2020
    Assignee: University of Pittsburgh-Of the Commonwealth System of Higher Education
    Inventors: Peng Kevin Chen, Shuo Li, Albert Chi Fu To
  • Patent number: 10802417
    Abstract: An optical scanning apparatus includes an optical scanning unit which includes a first light source, a first rotatable polygonal mirror for reflecting the beam emitted from the first light source, a second light source, a second rotatable polygonal mirror for reflecting the beam emitted from the second light source; and a housing accommodating the polygonal mirrors. The housing includes only three fixed portions fixed to a fixing portion for fixing the optical scanning unit. The first rotatable polygonal mirror and the second rotatable polygonal mirror are disposed such that a rotational axis of the first rotatable polygonal mirror and a rotational axis of the second rotatable polygonal mirror are in a triangular area defined by lines connecting the three fixed portions, as viewed in a rotation axial direction of the first rotatable polygonal mirror.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: October 13, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Sano
  • Patent number: 10804677
    Abstract: A stabilized diode laser device is disclosed, which includes a unibody mounting plate that is mated mechanically to a thermoelectric cooler. The unibody mounting plate comprises chambers in which components, including a laser diode, are aligned and secured. A combination of the secured components within the unibody mounting plate, along with the thermoelectric cooler, provides stabilization of the laser diode.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 13, 2020
    Assignee: BATTELLE MEMORIAL INSTITUTE
    Inventors: Andrew P. Bartko, Ryan W. Daly, Theodore J. Ronningen, Brad Ross, Karen Walczak
  • Patent number: 10768305
    Abstract: A vehicle is provided. The vehicle includes a light detection and ranging (LiDAR) sensor to acquire point cloud information for each channel on a surrounding ground of the vehicle by using a multichannel laser. The vehicle further includes a communicator to communicate with an external server, and a processor to control the communicator to receive map data from the external server and to determine a position of the vehicle in the map data based on the point cloud information for each channel, acquired through the LiDAR sensor.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: September 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aron Baik
  • Patent number: 10732286
    Abstract: A vehicle is provided. The vehicle includes a light detection and ranging (LiDAR) sensor to acquire point cloud information for each channel on a surrounding ground of the vehicle by using a multichannel laser. The vehicle further includes a communicator to communicate with an external server, and a processor to control the communicator to receive map data from the external server and to determine a position of the vehicle in the map data based on the point cloud information for each channel, acquired through the LiDAR sensor.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: August 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Aron Baik
  • Patent number: 10718923
    Abstract: A thermally tunable optoelectronic module includes a light emitting assembly operable to emit light of a particular wavelength or range of wavelengths. The light emitting assembly is disposed to a temperature-dependent wavelength shift. The thermally tunable optoelectronic module further includes an optical assembly aligned to the light emitting assembly, and separated from the light emitting assembly by an alignment distance. The thermally tunable optoelectronic module further includes a thermally tunable spacer disposed between the optical assembly and the light-emitting assembly, the thermally tunable spacer is operable to counteract the temperature-dependent wavelength shift.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: July 21, 2020
    Assignee: ams Sensors Singapore Pte. Ltd.
    Inventors: Martin Lukas Balimann, James Eilertsen
  • Patent number: 10673202
    Abstract: A laser component is provided which comprises: a surface emitting semiconductor laser configured to emit electromagnetic radiation along an emission axis, an optical element disposed downstream of the semiconductor laser along the emission axis, wherein the optical element comprises a diffractive structure, and a further optical element configured to cause radiation to be emitted asymmetrically with respect to the emission axis. Furthermore, the use of a laser component, a device having a laser component and a method for the production of laser components are provided.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: June 2, 2020
    Assignee: OSRAM OLED GMBH
    Inventors: Georg Rossbach, Hubert Halbritter
  • Patent number: 10530120
    Abstract: Direct diode-pumped Ti:sapphire laser amplifiers use fiber-coupled laser diodes as pump beam sources. The pump beam may be polarized or non-polarized. Light at wavelengths below 527 nm may be used in cryogenic configurations. Multiple diode outputs may be polarization or spectrally combined.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: January 7, 2020
    Assignee: Kapteyn-Murnane Laboratories, Inc.
    Inventors: Matthew S. Kirchner, Sterling Backus
  • Patent number: 10505331
    Abstract: A CO2 laser that generates laser-radiation in just one emission band of a CO2 gas-mixture has resonator mirrors that form an unstable resonator and at least one spectrally-selective element located on the optical axis of the resonator. The spectrally-selective element may be in the form of one or more protruding or recessed surfaces. Spectral-selectivity is enhanced by forming a stable resonator along the optical axis that includes the spectrally-selective element. The CO2 laser is tunable between emission bands by translating the spectrally-selective element along the optical axis.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: December 10, 2019
    Assignee: Rofin-Sinar Laser GmbH
    Inventors: Peter Rosenthal, Jens Schüttler, Florian Engel, Gongxue Hua
  • Patent number: 10453999
    Abstract: The invention provides an LED including a first-type semiconductor layer, an emitting layer, a second-type semiconductor layer, a first electrode, a second electrode, a Bragg reflector structure, a conductive layer and insulation patterns. The first electrode and the second electrode are located on the same side of the Bragg reflector structure. The conductive layer is disposed between the Bragg reflector structure and the second-type semiconductor layer. The insulation patterns are disposed between the conductive layer and the second-type semiconductor layer. Each insulating layer has a first surface facing toward the second-type semiconductor layer, a second surface facing away from the second-type semiconductor layer, and an inclined surface. The inclined surface connects the first surface and the second surface and is inclined with respect to the first surface and the second surface.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: October 22, 2019
    Assignee: Genesis Photonics Inc.
    Inventors: Yi-Ru Huang, Tung-Lin Chuang, Yan-Ting Lan, Sheng-Tsung Hsu, Chih-Ming Shen, Jing-En Huang, Teng-Hsien Lai, Hung-Chuan Mai, Kuan-Chieh Huang, Shao-Ying Ting, Cheng-Pin Chen, Wei-Chen Chien, Chih-Chin Cheng, Chih-Hung Tseng
  • Patent number: 10394042
    Abstract: An apparatus includes a source configured to generate a beam of electromagnetic radiation propagating in a first direction and a spatial filter. The spatial filter is configured to restrict the beam of electromagnetic radiation in one or more dimensions and includes at least one set of rods including a first rod and a second rod. The first rod is a first cylindrical structure with a first axis in a first plane and the second rod is a second cylindrical structure with a second axis in a second plane parallel to the first plane. The first axis and the second axis are longitudinal axes, and the first and the second rods have shaped surfaces in portions of their respective surfaces facing one another.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: August 27, 2019
    Assignee: Lockheed Martin Coherent Technologies, Inc.
    Inventors: Bruce Gregory Tiemann, Glenn T. Bennett, Joel Richard Blum
  • Patent number: 10363431
    Abstract: The present invention relates to a phototherapy apparatus, to a method for operating same, and to a treatment method using same. The phototherapy apparatus includes a body including a first resonator generating a first wavelength of light, a first module connected to the body and radiating the first wavelength of light generated from the first resonator to the outside, and a second module generating a second wavelength of light using the first wavelength of light transmitted from the body and radiating the second wavelength light to the outside.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: July 30, 2019
    Assignee: LUTRONIC CORPORATION
    Inventor: Hee Chul Lee
  • Patent number: 10305251
    Abstract: According to an example of the present disclosure a semiconductor laser diode includes a layer of graphene between an active laser region and a semiconductor substrate structure. The semiconductor laser diode may further include a first pair of electrodes to apply a potential difference across the active laser region and a second pair of electrodes to apply a potential difference across the layer of graphene.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: May 28, 2019
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Di Liang, Yingtao Hu
  • Patent number: 10256595
    Abstract: A system and method for tuning and infrared source laser in the Mid-IR wavelength range. The system and method comprising, at least, a plurality of individually tunable emitters, each emitter emitting a beam having a unique wavelength, a grating, a mirror positioned after the grating to receive at least one refracted order of light of at least one beam and to redirect the beam back towards the grating, and a micro-electro-mechanical systems device containing a plurality of adjustable micro-mirrors.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: April 9, 2019
    Assignee: TERADIODE, INC.
    Inventors: Bien Chann, Robin Huang, Parviz Tayebati
  • Patent number: 10244181
    Abstract: Methods, devices and systems are described for selectively illuminating different zones of a field of view by a multi-zone illumination device. In one aspect, a multi-zone illuminator may include a plurality of vertical cavity surface emitting lasers (VCSELs), and a plurality of micro-optical devices aligned with apertures of individual or groups of VCSELs, which are configured to be individually activated to provide adjustable illumination to different zones of a field of view of an image sensor. In another aspect, a method of selective illumination may include receiving information specifying a field of view of a camera, and controlling at least two sub arrays or individual illuminators of an illuminating array to output light at independently adjustable illumination powers, wherein each of the at least two sub arrays are independently configurable to illuminate at least one of a plurality of separate zones corresponding to the field of view of the camera.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: March 26, 2019
    Assignee: TRILUMINA CORP.
    Inventor: Mial E. Warren
  • Patent number: 10209604
    Abstract: A frequency converter for converting a single mode input beam at a fundamental frequency to an output beam at a converted frequency is configured with a plurality of spaced optical components defining a resonant cavity. The optical components shape the input beam with at least one beam waist in the cavity. The frequency converter further includes a non-linear crystal located within the cavity in either a divergent beam with a Rayleigh range smaller than a cavity round trip length so that a center of the crystal is spaced from the beam waist along a beam path, or in a collimated beam with a Rayleigh range greater than the cavity round trip length.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: February 19, 2019
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Alexey Avdokhin, Oleksiy Andrusyak
  • Patent number: 10211599
    Abstract: Laser modules and systems are provided that are smaller, lighter, and less complex and while more reliably generating collimated laser beams having limited divergence.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: February 19, 2019
    Assignee: Lasermax Inc.
    Inventors: Kenneth R. Vorndran, Brian L. Olmsted, Daniel J. Balonek
  • Patent number: 10140490
    Abstract: A collimator lens unit in which an aperture limit stop formation member and a collimator lens are integrally disposed in a cylindrical member is inserted in a lens-barrel hole of the module casing so as to be reciprocatable in an optical axis direction, and a light-emitting unit is fixed in the lens-barrel hole, with an optical axis of a light source aligned with an optical axis of the collimator lens. A long hole through which an adjust pin is penetrated so as to be reciprocatable in the optical axis direction is formed in a peripheral sidewall of the lens-barrel hole, and a fitting portion in which the adjust pin is fit is formed in an outer peripheral surface of the cylindrical member. On an inner peripheral surface of the lens-barrel hole, at a position opposed to the fitting portion, bearing portions in contact with the outer peripheral surface of the cylindrical member are formed.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: November 27, 2018
    Assignee: OPTOELECTRONICS CO., LTD.
    Inventors: Wataru Kubo, Satoshi Komi
  • Patent number: 10090636
    Abstract: Provided is a semiconductor laser device including a plurality of semiconductor laser units LDC that are capable of being independently driven, and a spatial light modulator SLM that is optically coupled to a group of the plurality of semiconductor laser units LDC. Each of the semiconductor laser units includes a pair of clad layers having an active layer 4 interposed therebetween, and a diffractive lattice layer 6 that is optically coupled to the active layer 4. The semiconductor laser device includes a ¼ wavelength plate 26 that is disposed between a group of the active layers 4 of the plurality of semiconductor laser units LDC and a reflection film 23, and a polarizing plate 27 that is disposed between the group of the active layers 4 of the plurality of semiconductor laser units LDC and a light emitting surface.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: October 2, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuu Takiguchi, Kazuyoshi Hirose, Yoshiro Nomoto, Takahiro Sugiyama, Yoshitaka Kurosaka
  • Patent number: 10044919
    Abstract: An imaging structure for a portable electronic device is disclosed. The imaging structure may include a housing having an opening for obtaining external light. The imaging structure may also include a reflective module coupled with the housing. The reflective module may include a reflective surface for reflecting the external light. The imaging structure may further include a photo-sensing module coupled with the reflective module. The photo-sensing module may be configured to generate an image based on the external light reflected from the reflective module toward the photo-sensing module.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: August 7, 2018
    Assignee: Fuzhou Rockchips Electronics Co., Ltd.
    Inventors: Ning Luo, Huan Jian, Mingjun Jiang
  • Patent number: 10038304
    Abstract: A VCSEL array device formed of an array of raised VCSELs on an electrical contact and raised inactive regions connected to the electrical contact. The VCSELs can be physically and/or electrically organized to improve power or speed, or in phase and in parallel. The VCSELs and inactive regions are positioned between the electrical contact and an electrical waveguide. The VCSELs may be separated into subarrays and each VCSEL may be covered with an integrated or bonded microlens for directing beams of light without external lenses. The VCSELs may also be electrically selected to form two or more groups, with beams of light from each group have unique divergences, unique power or unique optical power, and each beam of light in a group forming a spot at a point on a line, on the same optical axis, or as part of a pattern.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 31, 2018
    Assignee: TRILUMINA CORP.
    Inventor: John R. Joseph
  • Patent number: 10027087
    Abstract: Techniques for efficient alignment of a semiconductor laser in a Photonic Integrated Circuit (PIC) are disclosed. In some embodiments, a photonic integrated circuit (PIC) may include a semiconductor laser that includes a laser mating surface, and a substrate that includes a substrate mating surface. A shape of the laser mating surface and a shape of the substrate mating surface may be configured to align the semiconductor laser with the substrate in three dimensions.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: July 17, 2018
    Assignee: MACOM Technology Solutions Holdings, Inc.
    Inventors: Roe Hemenway, Cristian Stagarescu, Daniel Meerovich, Malcolm R. Green, Wolfgang Parz, Jichi Ma, Richard Robert Grzybowski, Nathan Bickel
  • Patent number: 9945775
    Abstract: A sensor comprises a pair of mirrors (11, 12) opposed along an optical axis and shaped to provide an optical cavity with stable resonance in at least one mode and having a cavity length of at most 50 ?m. An actuator system is arranged to move the mirrors relative to each other along the length of the optical cavity for tuning the wavelength of the mode of said cavity. A chemical sample is introduced inside the optical cavity using a sample introduction system (21). An EM radiation source (20) illuminates the cavity and a detector (25) detects the EM radiation emitted from, transmitted through, or reflected from the optical cavity.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: April 17, 2018
    Assignee: ISIS INNOVATION LIMITED
    Inventors: Jason Michael Smith, Claire Vallance
  • Patent number: 9917423
    Abstract: Provided herein is a laser beam combination system. The laser beam combination system includes a laser emitter array including a plurality of laser emitters arranged therein, a first combination lens, through which a plurality of laser beams emitted from the laser emitters are concentrated in a first axis direction, so that the plurality of laser beams are converted to each have an oval cross-section having a long axis that is parallel to a second axis, and a second combination lens disposed at a focal point of the first combination lens to combine the plurality of laser beams converted by the first combination lens at a predetermined target.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: March 13, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Jung Ho Song
  • Patent number: 9874671
    Abstract: A lighting device is provided that includes a light source package including a diode disposed in a housing and emitting light at an emission point within the housing. The lighting device also has an optical fiber extending through an opening in the housing and having a terminal end optically aligned on an optical axis with the diode to within a distance of less than 1.0 millimeter from the emission point, wherein the fiber emits light via a light diffusing fiber.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 23, 2018
    Assignee: Corning Incorporated
    Inventors: Anthony Sebastian Bauco, Vikram Bhatia, Stephan Lvovich Logunov
  • Patent number: 9859679
    Abstract: A semiconductor laser module 1 has a semiconductor laser device 30 operable to emit a laser beam L having an optical axis along the Z-direction, a collimator lens 40 configured to collimate components of the laser beam L along a direction of a fast axis (Y-direction), and a lens fixture block 50 fixed relative to the semiconductor laser device 30. The lens fixture block 50 has a lens attachment surface 50A perpendicular to the X-direction. An end 40A of the collimator lens 40 along the X-direction is fixed to the lens attachment surface 50A of the lens fixture block 50 with a lens fixation resin 42.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: January 2, 2018
    Assignee: FUJIKURA LTD.
    Inventor: Naoki Kimura
  • Patent number: 9825419
    Abstract: In one aspect, the present disclosure describes a fiber laser system for the generation and delivery of femtosecond (fs) pulses in multiple wavelength ranges. For improved versatility in multi-photon microscopy, an example of a dual wavelength fiber system based on Nd fiber source providing gain at 920 and 1060 nm is described. An example of a three-wavelength system is included providing outputs at 780 nm, 940 nm, and 1050 nm. The systems include dispersion compensation so that high quality fs pulses are provided for applications in microscopy, for example in multiphoton microscope (MPM) systems.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: November 21, 2017
    Assignee: IMRA America, Inc.
    Inventors: Takashi Hori, Martin E. Fermann
  • Patent number: 9793681
    Abstract: This semiconductor laser device includes a semiconductor laser chip and a spatial light modulator SLM which is optically connected to the semiconductor laser chip. The semiconductor laser chip LDC includes an active layer 4, a pair of cladding layers 2 and 7 sandwiching the active layer 4, and a diffraction grating layer 6 which is optically connected to the active layer 4. The spatial light modulator SLM includes a common electrode 25, a plurality of pixel electrodes 21, and a liquid crystal layer LC arranged between the common electrode 25 and the pixel electrodes 21. A laser beam output in a thickness direction of the diffraction grating layer 6 is modulated and reflected by the spatial light modulator SLM and is output to the outside.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: October 17, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuu Takiguchi, Yoshiro Nomoto
  • Patent number: 9784934
    Abstract: A laser device is disclosed. The laser device includes a surface-emitting laser including a plurality of emission points, a lens array including a plurality of lenses arranged so as to correspond to a position of the surface-emitting laser; and a light condensing optical system that condenses a plurality of light fluxes emitted through the lens array and enters the condensed lights to an input end of an optical fiber. The light condensing optical system includes an aspheric lens having positive refractive power. Both of an incidence surface and an emission surface of the aspheric lens have aspheric shapes.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: October 10, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Nobuyuki Arai
  • Patent number: 9748737
    Abstract: A laser element includes a photonic crystal layer on which laser light is incident. The photonic crystal layer includes a base layer formed of a first refractive index medium; and a plurality of different refractive index regions formed of a second refractive index medium having a refractive index different from that of the first refractive index medium and disposed in the base layer. The plurality of different refractive index regions includes a first different refractive index region of which a planar shape is an approximate circle, an approximate square, or an approximate polygon having a rotational symmetry of 90° and a first area perpendicular to a thickness direction; and a second different refractive index region having a second area perpendicular to a thickness direction.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: August 29, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuu Takiguchi, Yoshiro Nomoto
  • Patent number: 9728393
    Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer disposed on the substrate and generating ultraviolet light UV in response to an electron beam. The light-emitting layer includes a powdery or granular rare-earth-containing aluminum garnet crystal doped with an activator. The light-emitting layer has an ultraviolet light emission peak wavelength of 300 nm or shorter.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 8, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori Honda, Hiroyuki Taketomi, Fumitsugu Fukuyo, Koji Kawai, Hidetsugu Takaoka, Takashi Suzuki
  • Patent number: 9720242
    Abstract: A laser system comprising a laser configured to emit a laser beam wherein the laser beam is linearly polarized in a polarization plane and an optical assembly comprising a partial reflector having a refractive index and comprising a partially reflective surface. The partially reflective surface is arranged to receive the laser beam at an angle of incidence which lies in a plane of incidence and reflect a portion of the laser beam such that the reflected portion is output from the optical assembly. The partially reflective surface is arranged such that the plane of incidence forms a polarization angle with the polarization plane of the laser beam and the laser beam includes a p-polarized component and an s-polarized component.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: August 1, 2017
    Assignee: LASER QUANTUM INC.
    Inventors: Alan Cox, Jean-Charles Cotteverte
  • Patent number: 9711950
    Abstract: An external cavity laser apparatus according to an embodiment of the invention is provided. The external cavity laser apparatus includes a plurality of beam emitters that collectively emit a plurality of emitted beams that each includes a primary component emitted beam. A first reflective element is configured to reflect the plurality of primary component emitted beams and a first polarizing optic disposed in the optical path of the plurality of primary component emitted beams is configured to rotate a polarization of each primary component emitted beam to produce a first rotated primary component beam having a first linear polarization and a second rotated primary component beam having a second linear polarization. A polarized beam splitter is configured to direct first feedback system output component beams into an output beam, and to direct second feedback system output component beams to the plurality of beam emitters as feedback beams.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: July 18, 2017
    Assignee: TRUMPF LASER GMBH
    Inventors: Hagen Zimer, Alexander Killi, Steffen Ried, Simon Nagel, Markus Ginter
  • Patent number: 9673591
    Abstract: According to another aspect of the present disclosed technology, a diode laser assembly, includes an optical fiber having a cladding and a large mode area (LMA) core, wherein the LMA core comprises a fiber Bragg grating disposed within the LMA core, a plurality of diode lasers configured to emit light, optics configured to receive the light and to couple the light into the LMA core, and one or more features in the optical fiber to couple higher order modes of the light leaving substantially single mode light to propagate in the LMA core wherein a portion of the single mode light propagating in the LMA core is reflected by the fiber Bragg grating and is coupled back through the optics into the plurality of diode lasers to lock the wavelength of light emitted from each diode laser of the plurality.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: June 6, 2017
    Assignee: nLIGHT, INC.
    Inventor: Manoj Kanskar
  • Patent number: 9660415
    Abstract: This semiconductor laser device includes a semiconductor laser chip and a spatial light modulator SLM which is optically connected to the semiconductor laser chip. The semiconductor laser chip LDC includes an active layer 4, a pair of cladding layers 2 and 7 sandwiching the active layer 4, and a diffraction grating layer 6 which is optically connected to the active layer 4. The spatial light modulator SLM includes a transparent common electrode 25, a plurality of transparent pixel electrodes 21, a liquid crystal layer LC arranged between the common electrode 25 and the pixel electrodes 21. A laser beam output in a thickness direction of the diffraction grating layer 6 is modulated by the spatial light modulator SLM, passes therethrough, and is output to the outside.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: May 23, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yuu Takiguchi, Yoshiro Nomoto
  • Patent number: 9651204
    Abstract: The backlight according to the present disclosure may include a monochromatic laser diode, a reflector and a beam-expanding prism. The monochromatic laser diode and the beam-expanding prism may be arranged on the reflector, and monochromatic laser beams from the monochromatic laser diode may be expanded after being reflected by the beam-expanding prism.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: May 16, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shang Wang, Zhihong Du, Lilei Zhang
  • Patent number: 9647421
    Abstract: The semiconductor laser module 1 has a first substrate 10, a second substrate 20 provided on the first substrate 10, a semiconductor laser device 30 operable to emit a laser beam L having an optical axis along the Z-direction, a collimator lens 40 configured to collimate components of the laser beam L along a direction of a fast axis (Y-direction), and a lens fixture block 50 having a lens attachment surface 50A and a block fixation surface 50B that are perpendicular to the X-direction. An end 40A of the collimator lens 40 along the X-direction is fixed to the lens attachment surface 50A of the lens fixture block 50 with a lens fixation resin 42. The block fixation surface 50B of the lens fixture block 50 is fixed to a side surface 20A of the second substrate 20 along the X-direction with a block fixation resin 52.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 9, 2017
    Assignee: FUJIKURA LTD.
    Inventors: Naoki Kimura, Susumu Nakaya
  • Patent number: 9625671
    Abstract: Laser modules and systems are provided that are smaller, lighter, and less complex and while more reliably generating collimated laser beams having limited divergence.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: April 18, 2017
    Assignee: LaserMax, Inc.
    Inventors: Kenneth R. Vorndran, Brian L. Olmsted, Daniel J. Balonek
  • Patent number: 9563073
    Abstract: An integrated and compact multifunctional optical isolator (i.e., a combined splitter, isolator, and spot-size converter), which is suitable for use in a TOSA, includes input optics including a first polarizer, a Faraday rotator, and a second polarizer. The input optics include a wedge having a partially reflective coating disposed on a first face thereof. The input beam is incident on the first face at a non-normal angle of incidence such light passing through the wedge is refracted to a second face of the wedge, which is tilted relative to the first face by a predetermined wedge angle. At least one of the non-normal angle of incidence and the predetermined wedge angle is determined dependence upon a refractive index of the wedge material and a target anamorphic magnification of the input beam of light.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: February 7, 2017
    Assignee: Lumentum Operations LLC
    Inventors: Wei Xiong, Michael C. Larson, Zhaoming Li, Fenhong Zhou
  • Patent number: 9541721
    Abstract: A laser device is disclosed. The laser device includes a surface-emitting laser including a plurality of emission points, a lens array including a plurality of lenses arranged so as to correspond to a position of the surface-emitting laser; and a light condensing optical system that condenses a plurality of light fluxes emitted through the lens array and enters the condensed lights to an input end of an optical fiber. The light condensing optical system includes an aspheric lens having positive refractive power. Both of an incidence surface and an emission surface of the aspheric lens have aspheric shapes.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 10, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Nobuyuki Arai
  • Patent number: 9538590
    Abstract: Solid state lighting apparatuses and related methods are described. In some aspects, a solid state lighting apparatus includes a substrate. The substrate includes a non-metallic body having a first surface and one or more electrical components supported on the first surface of the substrate. At least one electrical component is spaced from the non-metallic body by one or more non-metallic layers. The apparatus can also include an array of solid state light emitters supported by the first surface of the substrate and electrically coupled to the one or more electrical components thereof. The apparatus can further include a receiver supported by the first surface of the substrate, wherein the receiver is adapted to receive alternating current (AC) directly from an AC power source. Related systems and methods are also disclosed.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: January 3, 2017
    Assignee: Cree, Inc.
    Inventors: Christopher P. Hussell, Jeremy Allen Johnson, Craig William Hardin
  • Patent number: 9535015
    Abstract: A pattern inspection method includes acquiring an image of a pattern in a stripe region concerned, regarding each of stripe regions of the first group each not including an adjacent stripe region in plural stripe regions obtained by virtually dividing an inspection region of a target object on which patterns have been formed into the plural stripe regions each partially overlapping an adjacent stripe region, wherein the acquiring is performed using laser lights or electron beams, in a longitudinal direction of the stripe region of the first group, and acquiring an image of a pattern in a stripe region concerned, regarding each of stripe regions of the second group each not including an adjacent stripe region, in remaining stripe regions other than the first group stripe regions, wherein the acquiring is performed using laser lights or electron beams, in the longitudinal direction of the stripe region of the second group.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: January 3, 2017
    Assignee: NUFLARE TECHNOLOGY, INC
    Inventor: Ikunao Isomura
  • Patent number: 9525267
    Abstract: The present patent application provides a vertical cavity surface emitting laser assembly. The vertical cavity surface emitting laser assembly includes a vertical cavity surface emitting laser, optical element and optical detector. The optical element includes an identation. A portion of the output light of the VCSEL passes through the indentation and to the optical detector to be used for power monitoring.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: December 20, 2016
    Assignee: O-NET COMMUNICATIONS (SHENZHEN) LIMITED
    Inventor: Mohammad Azadeh
  • Patent number: 9519150
    Abstract: A method for optimizing an intensity of a useful light distribution includes: providing a light source for emitting a light beam in a z-direction, which defines an optical axis, with a first intensity distribution; providing a beam shaping optical unit and a beam focusing optical unit for generating a second intensity distribution to be used in a target plane, the target plane being inclined by an angle ALPHA relative to a focal plane determined by the beam focusing optical unit; determining a first intensity at a first point and a second intensity at a second point of the second intensity distribution to be used. The points P1 and P2 are arranged on different sides of the back focal plane; and displacing the beam shaping optical unit along the y-axis in such a way that the difference between the two intensities I1 and I2 lies within a predefinable limit.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: December 13, 2016
    Assignee: Jenoptik Optical Systems GmbH
    Inventors: Chris Schild, Tobias Graf
  • Patent number: 9490604
    Abstract: A laser system including two laser amplifier modules, each comprising a solid-state laser gain material (LGM) disk, and a multi-pass optical assembly comprising a plurality of relay mirrors. The relay mirrors are grouped in two relay mirror groups. Individual relay mirrors are arranged to pass a laser beam from the first LGM disk to the second LGM disk and back to the first LGM disk, and so on. The laser beam is amplified with each pass through the LGM disk. The relay mirrors may be arranged to repeat the process of passing the laser beam to and from the two LGM disks arbitrary number of times until the desired laser beam amplification is attained. At that point, the laser beam may either released from the laser system, reflected back causing it to retrace its path through the system. This configuration increases the effective gain and improves laser power extraction.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: November 8, 2016
    Inventor: Jan Vetrovec
  • Patent number: 9419718
    Abstract: Embodiments described herein describe a sub-mount that is etched to include respective cavities with at least two adjacent sides that align optical filters and a mirror. Moreover, the cavities are arranged on the sub-mount such that when the filters and mirror are disposed in the cavities, they align in a manner that enables the performance of a multiplexing or demultiplexing function as part of, for example, a zigzag multiplexer/demultiplexer. In one embodiment, the filters and mirrors are aligned passively rather than actively. The sub-mount may then be placed on a substrate that includes other components of a ROSA or TOSA. In one embodiment, the substrate is also etched to include a cavity two adjacent sides to align the sub-mount so that sub-mount is passively aligned once disposed into the cavity.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: August 16, 2016
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Prakash Gothoskar, Vipulkumar Patel, Kalpendu Shastri, Rao V. Yelamarty
  • Patent number: 9369618
    Abstract: The present invention relates to a camera module, the camera module including a base formed at an upper surface of a PCB (Printed Circuit Board) mounted with an image sensor, and formed with an IRCF (Infrared Cut Filter) at a position corresponding to that of the image sensor, a bobbin vertically reciprocatively formed at an upper surface of the base, and having a bobbin screw thread at an upper surface, a lens barrel formed with a lens barrel screw thread at an outer surface for being screw-connected to an interior of the bobbin and mounted with at least one or more lenses, and a foreign object blocking unit formed at a screw-connected portion between the bobbin and the lens barrel to prevent sticky and adhesive foreign objects from being transmitted to an IRCF (Infrared Cut Filter) in the course of screw-connection between the lens barrel and the bobbin.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: June 14, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Byoung Yun Yeon, Kyung Pil Chae, Cheol Woo Jung