Collimating Of Light Beam Patents (Class 359/641)
  • Patent number: 11327488
    Abstract: Provided are non-uniform light-emitting lidar (light detection and ranging) apparatuses and autonomous robots including the same. A lidar apparatus may include a light source configured to emit light, an optical unit arranged on an optical path of light emitted from the light source and configured to change an optical profile of the light to be non-uniform, and a 3D sensor configured to sense location of an object by receiving reflection light from the object.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG ELECTRONICS CO.. LTD.
    Inventors: Jangwoo You, Namseop Kwon, Yonghwa Park, Jisan Lee, Myungjae Jeon
  • Patent number: 11314019
    Abstract: A capillary-type lens array having an inorganic glass around a graded index lens, in which a plurality of the graded index lenses and the inorganic glass are physically fused.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: April 26, 2022
    Assignee: NAKAHARA OPTO-ELECTRONICS LABORATORIES, INC.
    Inventor: Motohiro Nakahara
  • Patent number: 11187915
    Abstract: In a plane perpendicular to the optical axis (10) of a lens (2), the direction in which the cylindrical surface has zero curvature is the direction of generatrix of the lens (2), and the direction in which the cylindrical surface has non-zero curvature and that is orthogonal to the direction of generatrix is the direction of curvature of the lens (2). A light source (1) is disposed at the focal position (21) in the direction of generatrix on the side of the incident surface (3) of the lens (2), and emits light toward the incident surface (3) of the lens (2), the light having a difference between the divergence angle in the direction of generatrix of the lens (2) and the divergence angle in the direction of curvature of the lens (2).
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 30, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kohei Sakai, Yukari Takada, Fumio Shohda, Kenichi Hirosawa, Shumpei Kameyama
  • Patent number: 11143379
    Abstract: A light blade body for a lighting device, for example for an automotive vehicle, includes an in-coupling portion configured to be optically coupled to and collect light from a light source, a propagating portion extending along a longitudinal axis between a proximal end and a distal end where the propagating portion is configured to receive light from the in-coupling portion at the proximal end and guide light to the distal end, and wherein the propagating portion includes mixing optics to mix the light in advance of reaching an out-coupling portion. The body includes the out-coupling portion proximate the distal end of the propagating portion and is configured to emit light.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: October 12, 2021
    Assignee: HELLA GmbH & Co. KGaA
    Inventors: Tiffany Bosscher, Jose Miguel Mercado Pena
  • Patent number: 11121770
    Abstract: High power, high speed VCSEL arrays are employed in unique configurations of arrays and sub-arrays. Placement of a VCSEL array behind a lens allows spatial separation and directivity. Diffusion may be employed to increase alignment tolerance. Intensity modulation may be performed by operating groups of VCSEL emitters at maximum bias. Optical communications networks with high bandwidth may employ angular, spatial, and/or wavelength multiplexing. A variety of network topologies and bandwidths suitable for the data center may be implemented. Eye safe networks may employ VCSEL emitters may be paired with optical elements to reduce optical power density to eye safe levels.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 14, 2021
    Assignee: Lumentum Operations LLC
    Inventors: John R. Joseph, Kevin L. Lear, David Abell
  • Patent number: 11112066
    Abstract: The invention provides a laser light installed inside a bulb lamp and a method of assembling a laser light inside a bulb lamp. The laser light comprises a bulb lamp, wherein a fixing support which further has heat dissipation function is coaxially arranged on an LED light board disposed inside the bulb lamp, a laser module is sleeved inside the fixing support. The laser module consists of a lens module, a laser head base, a laser head and a heat dissipating tube. The lens module consists of a focus base, and further, a transparent piece, a grating piece, a lens base, a lens and a lens fixing base accommodated in the lens base, which are sleeved inside the focus base in sequence. A through hole is provided on a portion of a lamp cover corresponding to the laser module and is enclosed by a transparent cap.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: September 7, 2021
    Inventor: Sang Pil Moon
  • Patent number: 11079091
    Abstract: A lens includes a first interface acting as a refractive entrance surface for a light ray, a second interface acting as a total inner reflective (TIR) surface for the light ray entering the lens through the first interface, and a third interface acting as a refractive exit surface for the light ray reflected at the second interface. A method of producing a lens includes shaping the second interface and the third interface so that at least two light rays having a diverging angle to each other and impinging under an arbitrary solid angle onto the first interface exit the lens in the area of the third interface substantial parallel to each other and in a common direction of space.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: August 3, 2021
    Assignee: SMR Patents S.à.r.l.
    Inventor: Nitesh Shah
  • Patent number: 11073813
    Abstract: A selector device for a domestic appliance includes selection means to select a determinate program and/or function of the domestic appliance; drive means able to switch the domestic appliance on or off and positioned in the selection means; and lighting means, suitable to signal that the apparatus is switched on or off and associated with the selection means and with the drive means.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: July 27, 2021
    Assignee: DE' LONGHI APPLIANCES S.R.L. CON UNICO SOCIO
    Inventors: Giuseppe De' Longhi, Luciano Scian
  • Patent number: 10935805
    Abstract: An optical sensor includes a plurality of pixels disposed in a substrate and a light collimating layer. The light collimating layer is disposed on the substrate. The light collimating layer includes a light-shielding layer, a plurality of transparent pillars, and a plurality of first dummy transparent pillars. The light-shielding layer is disposed on the substrate. The plurality of transparent pillars pass through the light-shielding layer and are disposed correspondingly on the plurality of pixels. The plurality of first dummy transparent pillars that pass through the light-shielding layer are disposed on a first peripheral region of the light collimating layer, wherein the plurality of first dummy transparent pillars surround the plurality of transparent pillars from a top view.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: March 2, 2021
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Hsin-Hui Lee, Han-Liang Tseng, Jiunn-Liang Yu, Kwang-Ming Lin, Yin Chen, Si-Twan Chen, Hsueh-Jung Lin, Wen-Chih Lu, Ting-Jung Lu
  • Patent number: 10921606
    Abstract: An optical multiplexer includes a polarizer, a receptacle, a rotator disposed between the polarizer and the receptacle to rotate polarization planes of a pair of linearly polarized light beams in a forward direction and a polarization plane of a light beam in an opposite direction by 45 degrees, the forward direction being from the polarizer toward the receptacle, the opposite direction being from the receptacle to the polarizer, and a birefringent prism disposed between the rotator and the receptacle to multiplex the pair of linearly polarized light beams in the forward direction and to split the light beam in the opposite direction into an ordinary ray and an extraordinary ray. The rotator and the birefringent prism are fixed to the receptacle.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 16, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshiya Sato, Tadashi Murao, Keita Mochizuki
  • Patent number: 10795071
    Abstract: A solid-state luminaire module includes one or more light-emitting elements (LEEs) arranged to provide light; and a light guide including a receiving end arranged to receive the light provided by the LEEs and an opposing end, a pair of opposing side surfaces extending along a length of the light guide to guide the received light in a forward direction to the opposing end, and a redirecting end-face located at the opposing end and configured to reflect the guided light—that reaches the opposing end—back into the light guide as return light, such that substantially all the return light impinges on the pair of opposing side surfaces at incident angles larger than a critical incidence angle and transmits through the pair of opposing side surfaces into the ambient as output light of the luminaire module, the output light to propagate in backward directions.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 6, 2020
    Assignee: Quarkstar LLC
    Inventors: Louis Lerman, Ferdinand Schinagl, Allan Brent York
  • Patent number: 10761337
    Abstract: The present invention provides a projecting apparatus. The projecting apparatus comprises: a light source, a lens, and a diffractive optical element (DOE). The light source is utilized for emitting a Gaussian beam. The lens has a focal length, and is utilized for receiving the Gaussian beam and generating a de-focused Gaussian beam, wherein a distance between the light source and the lens is not equal to the focal length. The DOE is designed for the de-focused Gaussian beam, and utilized for receiving the de-focused Gaussian beam and spreading out a non-diffracted light of the de-focused Gaussian beam.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: September 1, 2020
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventor: Cheng-Hung Chi
  • Patent number: 10753573
    Abstract: An optical device includes: a plurality of walls disposed to meet along a first axis and having reflecting surfaces facing a space interposed between the walls; and a plurality of partitions, each having a funnel-like shape and each having an outer surface that includes a curved reflecting surface, the partitions disposed in the space interposed between the walls coaxially with the first axis at multiple levels along the first axis; wherein the outer surface of a first of the partitions located at an upper level is configured to receive at least some light through an opening of a second of the partitions located at lower level.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: August 25, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Hiroyuki Itahana, Akira Nagahashi
  • Patent number: 10725180
    Abstract: Apparatus and associated methods relate to an array of independently-controllable laser diode bars configured to scan a linearly-structured beam of light upon a scene. Each of the independently-controllable laser diode bars is distributed along a common axis. Each of the independently-controllable laser diode bars is configured to emit a beam of light in an emission direction orthogonal to the common axis. Each of the independently-controllable laser diode bars can be energized in a sequence, thereby scanning the scene in the direction of the common axis.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: July 28, 2020
    Assignee: Rosemount Aerospace Inc.
    Inventors: Kent Allan Ramthun, Weibin Zhang
  • Patent number: 10663700
    Abstract: An anamorphic three-element objective lens projects a plurality of beams of different wavelengths and different diameters into an elongated focal spot in a working-plane. In one transverse direction of the lens, the beams are tightly focused with equal beam-waist widths in the working-plane, defining a height of the focal spot. In another transverse direction, the different beams are focused progressively beyond the working-plane such that the beams have a common beam-width in the working-plane, thereby defining a width of the focal spot.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: May 26, 2020
    Assignee: Coherent, Inc.
    Inventors: Michele Wayne Winz, Lei Meng
  • Patent number: 10655811
    Abstract: A vehicle light comprising a container body and a lenticular body joined at least partially to close the container body, wherein the container body delimits a containment seat housing at least one light source that faces at least one light guide having a light guide body shaped to receive the light beam from a light input wall, and to transmit it to a light output wall and from this to a main light emission portion of the lenticular body. At least first extractor elements are placed between the light input wall and the light output wall, which extract a first extracted portion of the light beam emitted by the light source and direct it onto first reflecting elements separate from the light guide. The first reflecting elements reflect the first extracted portion towards the lenticular body at a first auxiliary light emission portion, separate from said main emission portion.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: May 19, 2020
    Assignee: MARELLI AUTOMOTIVE LIGHTING ITALY S.P.A.
    Inventors: Alessandro Buzzurro, Alessandro Sacca'
  • Patent number: 10642053
    Abstract: Apparatus and associated methods relate to projecting a linear beam onto a distant object. One or more laser diodes are configured to emit one or more elliptical beams of light in an emission direction. If more than one laser diodes are used, they are aligned so as to have coplanar emission facets and common slow-axis and fast-axis directions, which are perpendicular to one another and to the emission direction. A first cylindrical lens is configured to receive the emitted beam(s) and to collimate the emitted beam(s) in the fast-axis direction perpendicular to a slow-axis direction. A second cylindrical lens is configured to receive the emitted beam(s) and to diverge the emitted beam(s) in the slow-axis direction such that if more than one beams are emitted, they are diverged so as to overlap one another in the slow-axis direction.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: May 5, 2020
    Assignee: Simmonds Precision Products, Inc.
    Inventors: Kent Allan Ramthun, Joseph T. Pesik
  • Patent number: 10627560
    Abstract: An optical system for a lighting device, comprising a light-guiding optical part configured for spreading light beams generated by light sources situated opposite to a rear side of the optical part. Light beams are coupled into the light-guiding optical part, and after passing through the light-guiding optical part the light beams are emitted through its output surface. Rear side of light-guiding optical part is equipped with macroscopic cavities, each pair of adjacent macroscopic cavities forming between themselves an optical segment, whose two sides, which separate the optical segment from the pair of macroscopic cavities, comprise a reflective surface. The optical segment comprises a rear surface on the rear side, opposite to which a light source is positioned. The reflective surfaces are configured for reflecting a part of the light beams, which were coupled through the rear surface into the optical segment, and then directing them to the output surface.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: April 21, 2020
    Assignee: Varroc Lighting Systems, S.R.O.
    Inventors: Tomas Gloss, Vit Simurda, Jakub Hruska
  • Patent number: 10587936
    Abstract: A wavelength division multiplexed (WDM) reconfigurable optical switch, the switch has at least one optical input port to receive a WDM input optical signal comprising a plurality of wavelength channels; a plurality of optical output ports; a reconfigurable holographic array on an optical path between the at least one optical input port and the plurality of optical output ports; and at least one diffractive element on an optical path between at least one optical input port and the reconfigurable holographic array, to demultiplex the WDM input optical signal into a plurality of demultiplexed optical input beam channels, and to disperse the demultiplexed optical input beam channels spatially along a first axis on said the reconfigurable holographic array; and the switch further comprises one or more beam profiling optical elements to modify transverse beam profiles of the demultiplexed optical input beam channels.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: March 10, 2020
    Assignee: Roadmap Systems Ltd
    Inventors: Haining Yang, Daping Chu, Brian Robertson
  • Patent number: 10564435
    Abstract: A device emitting light from two sides includes a base, a first light emitting surface, and a second light emitting surface. The base comprises a first surface and a second surface, the first surface is depressed to form a receiving groove, the receiving groove comprising a light incidence surface. The first light emitting surface protrudes from the second surface. The second light emitting surface is arranged beside the receiving groove. The second light emitting surface is a micro-structural portion, the micro-structural portion recessed from the first surface towards the second surface and forming a plurality of micro-structures.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: February 18, 2020
    Assignee: CHAMP TECH OPTICAL (FOSHAN) CORPORATION
    Inventor: Chin-Chung Chen
  • Patent number: 10473851
    Abstract: The present invention provides an optical film. The optical film includes a first light-guiding layer, a second light-guiding layer, and at least one light absorption member. The first light-guiding layer has a first light incident surface, a first light-emitting surface, and an accommodating recessed portion formed on the first light incident surface. The second light-guiding layer is disposed on the first light incident surface, and has a second light incident surface, a second light-emitting surface, and a light-guiding member formed on the second light-emitting surface. Each light-guiding member is disposed on each accommodating recessed portion respectively, and each light-guiding member has a top portion, a bottom portion, and a side surface connecting the top portion and the bottom portion.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: November 12, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Kun-Cheng Tien, Yu-Hsuan Hung, Meng-Lin Tsai, Chin-An Lin, Wei-Cheng Wong
  • Patent number: 10469923
    Abstract: Disclosed herein is a routing band-pass filter for routing optical signals between multiple optical channel sets. In particular, disclosed is a wavelength-division multiplexing (WDM) optical assembly including a first WDM filter, a second WDM filter, and a first routing filter. The first and second WDM filter are in communication with first and second sets of channel ports, respectively. The routing filter has a routing passband and forms a primary routing optical path for signals outside the routing passband between the first WDM filter and a common port. The routing filter also forms a secondary routing optical path for signals within the routing passband between the second WDM filter and the common port. The routing band-pass filter increases the number of channel ports in optical communication with a common port while maintaining signal integrity and increasing speed.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 5, 2019
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Qijun Xiao, Andy Fenglei Zhou
  • Patent number: 10399649
    Abstract: A marine navigational light fixture includes a light source and a cutoff sub-housing holding the light source. The cutoff sub-housing has a main frame having first and second laterally opposite sides; first and second sidewalls projecting from the first and second sides of the main frame, respectively; and first and second cutoff surfaces located on the first and second sidewalls, respectively. The first and second cutoff surfaces are configured to provide practical cutoff of light emitted from the light source outside of a specified arc of visibility. The marine navigational light fixture also includes a main housing holding the cutoff sub-housing. A luminaire subassembly for the marine navigational light fixture includes a colored component having a color that is in the same color family as a color of light emitted from the luminaire subassembly. The colored component can be a lens, a filter cap, a PCB, and/or a telltale.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: September 3, 2019
    Assignee: Brunswick Corporation
    Inventors: Robert Tate, Donald J. Olsen, Philip Wetzel, Anuj Maloo
  • Patent number: 10288248
    Abstract: A device, a light guide, and a method for automotive lighting are provided. The device includes a light source and a light guide. The light source provides light rays. The light guide includes two or more aspheric surfaces having at least a common focal point. The two or more aspheric surfaces are configured to maintain total internal reflection of the light rays in the light guide.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: May 14, 2019
    Assignee: Valeo North America, Inc.
    Inventors: Charles Crespin, Julien Hemon, Larry Boxler
  • Patent number: 10241335
    Abstract: A semiconductor laser module comprises a tapered laser diode and/or a tapered amplifier diode equipped with beam shaping optics. The tapered laser diode and/or the tapered amplifier diode includes an emission facet for emitting a laser beam along a beam axis. The beam-shaping optics comprise a plano-convex cylindrical lens oriented so as to change divergence of the beam in the fast axis direction, the plano-convex spherical cylindrical lens having a planar surface arranged facing the facet and a circular cylindrical surface facing away from the facet. The refractive index of lens may be uniform throughout the entire lens. Alternatively, the lens may have a refractive index varying in the direction of the slow axis and/or in the direction of the fast axis.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: March 26, 2019
    Assignee: PANTEC ENGINEERING AG
    Inventors: Arne Heinrich, Clemens Hagen
  • Patent number: 10215362
    Abstract: A light source apparatus includes two or more light sources placed in one direction, and an array lens having two or more lenses, which corresponds to each of the light sources. In order to condense a light emitted from each of the lenses into one position, in a first lens in each of the lenses, an optical axis of the light source which corresponds to the first lens is shifted from an optical axis of said first lens in said one direction. The first lens is formed such that a length from the optical axis to one end of said first lens in the one direction is longer than a length from the optical axis to another end of the first lens in a direction which is opposite to the one direction.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 26, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Seiji Nagahara, Eiichiro Okahisa
  • Patent number: 10186690
    Abstract: Provided is an organic EL display panel manufacturing method. The organic EL display panel includes a plurality of semiconductor elements. The method includes: forming, on a planarization film formed above the semiconductor elements, lower electrodes in one-to-one correspondence with the pixels; forming an organic layer including a light-emitting layer on the lower electrodes; forming an upper electrode on the organic layer; detecting any of the lower electrodes that includes a defect; and forming, on the planarization film or any of the lower electrodes that includes a defect, a protrusion for connecting the lower electrode and the upper electrode.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: January 22, 2019
    Assignee: JOLED INC.
    Inventors: Toshiaki Onimaru, Tetsuro Kondo
  • Patent number: 10180232
    Abstract: An optical member includes one or more lens surfaces, each lens surface comprising a curved surface having: a curvature in a first direction, and a curvature in a second direction that is perpendicular to the first direction in an imaginary plane perpendicular to an optical axis of incident light. Each of the one or more lens surfaces has a substantially rectangular planar shape when viewed in an optical axis direction, the substantially rectangular planar shape being defined by two sides substantially parallel to the first direction and two sides substantially parallel to the second direction. The curvature in the second direction continuously increases from a first end of each of the one or more lens surfaces in the first direction toward a second end of each of the one or more lens surfaces in the first direction.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: January 15, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Hiroshi Fujimori, Akiyoshi Wakafuji
  • Patent number: 10131095
    Abstract: According to some aspects, an additive fabrication device for forming solid objects within a build region is provided, the device comprising a laser source, an aspheric lens configured to receive light emitted by the laser source and to produce a light beam having a circular cross section at at least one position inside the build region, and at least one mirror configured to be actuated to reflect the light beam toward a selected position within the build region.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: November 20, 2018
    Assignee: Formlabs, Inc.
    Inventors: Alexander Gumennik, Amira Eltony
  • Patent number: 10126556
    Abstract: A light operation device includes: an light input and output port; an light-operating element reflecting a light input from any one of the ports of the light input and output port and outputting the reflected light to any one of the ports of the light input and output port; a condensing lens system disposed between the light input and output port and the light-operating element and optically-coupling the light input and output port with the light-operating element; an anamorphic optical system disposed between the light input and output port and the condensing lens system and expanding a beam diameter of the light input from a side of the light input and output port in a beam-diameter-expanding direction. In the condensing lens system, a first focal distance in the beam-diameter-expanding direction and a second focal distance in a direction perpendicular to the beam-diameter-expanding direction differ from each other.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: November 13, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Atsushi Oguri, Nobuyuki Kagi, Masaki Iwama
  • Patent number: 10088118
    Abstract: Lighting device includes a light source and a light guide body that has an in-coupling portion that collects the light, a propagating portion that carries the collected light, and an out-coupling portion, which has a central light emitting portion with a central exterior surface, an extended light emitting portion with a proximal reflecting surface and an extended exterior surface, and a deflecting element. The central light emitting portion guides a first light portion emerging from the propagating portion towards the central exterior surface where it is emitted. The deflecting element guides a second light portion emerging from the propagating portion towards the extended light emitting portion, which reflects the second light portion towards the extended exterior surface where it is also emitted. The central surface generates light to satisfy light distribution standards while the addition of the extended light emitting areas assures that a minimum light emitting area is satisfied.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 2, 2018
    Assignee: HELLA GMBH & CO. KGAA
    Inventors: Bijoy Naron, José Miguel Mercado Peña, Tiffany Christina Bosscher, Sandy Szczepanski, Mirco Götz
  • Patent number: 10036946
    Abstract: The disclosure relates to a light source device including a solid-state light source, a collimator lens that receives a light beam emitted from the solid-state light source, and a beam width expansion element adapted to expand a beam width of the light beam from the collimator lens.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 31, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Akiyama
  • Patent number: 9989755
    Abstract: A process of installing optical components as precisely aligning optical axes thereof is disclosed. The process, which relates to an optical module having a signal port and/or a local port, and optical components optically coupling the ports with an active device having a built-in photodiode (PD), includes steps of (a) preparing a reference mirror that emulates a housing with a side to which the ports are attached, (b) aligning an optical axis of the auto-collimator with an optical axis of the reference mirror; (c) replacing the reference mirror with the housing; (d) aligning optical axes of the optical components with the optical axis of the auto-collimator; and (e) installing the optical components within the housing.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: June 5, 2018
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.
    Inventors: Yasushi Fujimura, Yutaka Moriyama, Tomoya Saeki, Michio Suzuki, Satoru Kanemaru
  • Patent number: 9952402
    Abstract: An adjusting mechanism is disclosed. The adjusting mechanism has a differential, first and second stepping motors engaging with the differential, a screw rod connected to the output shaft of the differential such that the screw rod rotates along with the rotation of the output shaft, and a moving block threadably connected to the screw rod to permit motion of the moving block along the longitudinal axis of the screw rod. The output shaft of the adjusting mechanism rotates according to the rotation of the first and second stepping motors, so as to drive the movement of the moving block along the screw rod.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: April 24, 2018
    Assignee: Changzhou Huada Kejie Opto-Electro Instrument Co., Ltd.
    Inventors: Ou Zhang, Dongdong Peng
  • Patent number: 9927620
    Abstract: Systems and techniques are disclosed for flat-top intensity laser sheet beam generation. The system includes a source of light directed at a first optical component arranged to receive the light and generate spherical aberration (e.g., third order positive aberration) in the light rays. The spherical aberration results in positive aberrations in the light in a first plane and also results in the light being substantially collimated in a second plane perpendicular to the first plane. In some cases, the source of light is provided from a laser diode and the first optical component is one of an aspherical lens and a spherical lens. The system also includes a second optical component for focusing the light in the second plane. In some cases, the second optical component is a cylindrical lens.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: March 27, 2018
    Assignee: INTEL Corporation
    Inventors: Shengbo Xu, Tolga Acikalin
  • Patent number: 9905988
    Abstract: A distributed resonator laser system using retro-reflecting elements, in which spatially separated retroreflecting elements define respectively a power transmitting and a power receiving unit. The retroreflectors have no point of inversion, so that an incident beam is reflected back along a path essentially coincident with that of the incident beam. This enables the distributed laser to operate with the beams in a co-linear mode, instead of the ring mode described in the prior art. This feature allows the simple inclusion of elements having optical power within the distributed cavity, enabling such functions as focusing/defocusing, increasing the field of view of the system, and changing the Rayleigh length of the beam. The optical system can advantageously be constructed as a pupil imaging system, with the advantage that optical components, such as the gain medium or a photo-voltaic converter, can be positioned at such a pupil without physical limitations.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 27, 2018
    Assignee: WI-CHARGE LTD
    Inventors: Refael Della-Pergola, Ortal Alpert, Omer Nahmias, Victor Vaisleib
  • Patent number: 9903743
    Abstract: A position detector for determining the rotation angle of an element which is rotatable around an axis of rotation (A) comprises a light source (3), a detector element (18, 19, 20, 21) arranged around the axis of rotation (A) for detecting light radiation emitted by the light source (3), a beam reshaping element (7, 207) arranged between the light source (3) and the detector element (18, 19, 20, 21) such that light from the light source (3) is directed towards the detector element (18, 19, 20, 21), and a light-blocking element (5) positioned between the beam reshaping element (7, 207) and the detector element (18, 19, 20, 21) such that it can rotate around the axis of rotation (A) together with the rotatable element whereby, depending on the rotation angle, the incidence of light on different partial regions of the detector element (18, 19, 20, 21) is prevented.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 27, 2018
    Assignee: Scanlab GmbH
    Inventors: Norbert Petschik, Hans-Joachim Munzer, Norbert Kirr
  • Patent number: 9784957
    Abstract: In a line projector a diode-laser beam having an elliptical cross-section is projected onto a Powell lens which spreads the beam to form a line of light. Distribution of power along the line of light is adjusted by rotating the diode-laser beam with respect to the Powell lens.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: October 10, 2017
    Assignee: Coherent, Inc.
    Inventors: Erik Nackerud, Jimson Lounsbury, Patrick Kain
  • Patent number: 9784430
    Abstract: Disclosed is a lens (100) for a lighting device (10) comprising a solid state lighting element (20), the lens comprising a light exit surface (110); a central lens portion (120) opposite said light exit surface; an inner annular reflective element (130) opposite said light exit surface and extending away from said light exit surface by a first distance (d1), said inner annular reflective element delimiting said central lens portion; and a side surface defined by an outer annular reflective element (140) opposite said light exit surface and extending away from said light exit surface by a second distance (d2) that is larger than the first distance such that the outer annular reflective element extends beyond the inner annular reflective element. A lighting device such as a light bulb including such as lens is also disclosed.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: October 10, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Mo Shen, Yun Li, Aibin Zou
  • Patent number: 9780882
    Abstract: An optical transmitter module that generates a signal multiplexing two or more optical signals each having optical power satisfying a preset magnitude is disclosed. The optical transmitter module includes laser diodes (LD), adjusting lenses coupled with the LDs to generate dispersive optical outputs, and a concentrating lens that concentrates the dispersive optical beams onto a coupling fiber. A feature of the optical transmitter module is that the adjusting lenses are set closer to the LDs to adjust the optical power coupled with the coupling fiber.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: October 3, 2017
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tomoya Saeki, Munetaka Kurokawa
  • Patent number: 9766379
    Abstract: A microlens array substrate includes: a light transmitting substrate in which a first lens surface formed of a concave surface is formed on a substrate surface on one side; a first lens layer which covers the substrate surface on one side and has a refractive index which is different from that of the light transmitting substrate; a light transmitting layer which covers the first lens layer on the opposite side to the light transmitting substrate; and a second lens layer which covers the light transmitting layer on the opposite side to the light transmitting substrate and in which a second lens surface formed of a convex surface is formed on the opposite side to the light transmitting substrate, in which the light transmitting layer has smaller refractive index and coefficient of thermal expansion than those of the first lens layer and the second lens layer.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: September 19, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Junichi Wakabayashi
  • Patent number: 9753261
    Abstract: A projection lens consists essentially of a first lens group having positive refractive power and a second lens group having positive refractive power in this order from a magnification side. A surface closest to a reduction side in the first lens group is convex. The second lens group consists of two single lenses each having positive refractive power, and in each of which a surface having a smaller absolute value faces the reduction side. Further, the following conditional expressions (1) through (4) are satisfied: |R1b/R1f|?0.5??(1); |R2b/R2f|?0.6??(2); |?/f2|?0.3??(3) and d2/f2?0.4??(4).
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: September 5, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Chikara Yamamoto
  • Patent number: 9638907
    Abstract: Methods and devices for expanding a laser beam are provided. In one aspect, a device includes a telescope arrangement having two spherical folding mirrors for expanding an incident collimated laser beam with a lens arranged in the divergent beam path downstream of the telescopic arrangement. The two spherical folding mirrors in the beam path are a first, convex-curved spherical folding mirror and a second, concave-curved spherical folding mirror, respectively. The lens has a spherical lens face for collimating the expanded laser beam from the telescope arrangement. The laser beam can be an ultraviolet (UV) laser beam.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 2, 2017
    Assignee: TRUMPF LASER GMBH
    Inventors: Klaus Wallmeroth, Christoph Tillkorn, Ivo Zawischa
  • Patent number: 9599882
    Abstract: An illumination system including at least one laser source, at least one anisotropic light expanding element and a wavelength conversion element is provided. The at least one laser source emits a laser beam. The at least one anisotropic light expanding element is disposed on the transmission path of the laser beam and causes the laser beam to expand along a light expanding direction. The light expanding direction is substantially parallel to the slow axis of the laser beam. The wavelength conversion element is disposed on the transmission path of the laser beam. A projection apparatus is also provided.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: March 21, 2017
    Assignee: Coretronic Corporation
    Inventors: Chi-Tang Hsieh, Chia-Hao Wang, Ko-Shun Chen, Chi-Hsun Wang
  • Patent number: 9553418
    Abstract: A distributed resonator laser system using retro-reflecting elements, in which spatially separated retroreflecting elements define respectively a power transmitting and a power receiving unit. The retroreflectors have no point of inversion, so that an incident beam is reflected back along a path essentially coincident with that of the incident beam. This enables the distributed laser to operate with the beams in a co-linear mode, instead of the ring mode described in the prior art. This feature allows the simple inclusion of elements having optical power within the distributed cavity, enabling such functions as focusing/defocusing, increasing the field of view of the system, and changing the Rayleigh length of the beam. The optical system can advantageously be constructed as a pupil imaging system, with the advantage that optical components, such as the gain medium or a photo-voltaic converter, can be positioned at such a pupil without physical limitations.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 24, 2017
    Assignee: Wi-Charge Ltd.
    Inventors: Refael Della-Pergola, Ortal Alpert, Omer Nahmias, Victor Vaisleib
  • Patent number: 9528687
    Abstract: Transmission apparatus for beam expansion are disclosed. A transmission apparatus includes a light source configured to emit an optical signal, a first feature comprising a diffractive element and a reflective element, and a second feature that is substantially aligned with the first feature. The diffractive element is substantially aligned with the light source to receive the optical signal. The second feature includes an inner surface that is partially reflective and partially transmissive. The first feature is located between the light source and the second feature. The diffractive element is configured to diffract the optical signal, the second feature is configured to: (a) reflect a first portion of the diffracted optical signal and (b) transmit a second portion of the diffracted optical signal to a destination balloon; and the second feature is further configured to transmit at least part of the first portion of the diffracted optical signal to the destination balloon.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: December 27, 2016
    Assignee: X DEVELOPMENT LLC
    Inventors: Bernard Kress, Jeremy Brouillet
  • Patent number: 9523857
    Abstract: In some aspects, a flow cytometer system is provided that includes beam shaping optics positioned to manipulate a light beam and produce a resulting light beam that irradiates the core stream at the interrogation zone of the flow cell. The beam shaping optics include an acylindrical lens positioned to receive and focus light in a direction of a first axis orthogonal to a direction of light travel, and a cylindrical lens positioned to receive the light output from the acylindrical lens and to focus the light output from the acylindrical lens in a direction of a second axis orthogonal to the first axis and to the direction of light travel. The resulting light beam output has a flat-top shaped intensity profile along the first axis, and a Gaussian-shaped intensity profile along the second axis. Related methods of shaping a light beam at an interrogation zone of a flow cell are also provided.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 20, 2016
    Assignee: Abbott Laboratories
    Inventors: John F. Heanue, Stuart L. Friedman
  • Patent number: 9507090
    Abstract: A method for shaping an output light beam from an optical fiber by controlling the phase and amplitude of the beam by producing beam shaping elements on an exit facet of the optical fiber by direct surface texturing of the exit facet, where a controlled phase difference is achieved across the fiber cross-section over a predefined pattern. The optical fiber can be a single mode fiber or a multi-mode fiber. Either a binary or a complex phase difference can be achieved. Also disclosed is the related system for shaping an output light beam from an optical fiber.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 29, 2016
    Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
    Inventors: Jasbinder S. Sanghera, Catalin M. Florea, Rafael R. Gattass, Ishwar D. Aggarwal
  • Patent number: 9494801
    Abstract: In some aspects, a flow cytometer system is provided that includes beam shaping optics positioned to manipulate a light beam and produce a resulting light beam that irradiates the core stream at the interrogation zone of the flow cell. The beam shaping optics include an acylindrical lens positioned to receive and focus light in a direction of a first axis orthogonal to a direction of light travel, and a cylindrical lens positioned to receive the light output from the acylindrical lens and to focus the light output from the acylindrical lens in a direction of a second axis orthogonal to the first axis and to the direction of light travel. The resulting light beam output has a flat-top shaped intensity profile along the first axis, and a Gaussian-shaped intensity profile along the second axis. Related methods of shaping a light beam at an interrogation zone of a flow cell are also provided.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 15, 2016
    Assignee: Abbott Laboratories
    Inventors: John F. Heanue, Stuart L. Friedman
  • Patent number: 9496685
    Abstract: There is provided a laser emitting apparatus including a semiconductor laser, a grating positioned relative to the semiconductor laser to form a resonator structure therebetween, and an optical system positioned between the semiconductor laser and the grating. The optical system is configured and arranged so that confocal points are formed on both a light emitting surface of the semiconductor laser and a reflection surface of the grating.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: November 15, 2016
    Assignee: Sony Corporation
    Inventors: Goro Fujita, Michio Oka, Hiroshi Yoshida, Fumisada Maeda, Mitsunori Ueda, Kenji Tanaka