Diffuser Or Diffusing Of Incident Light (e.g., Optical Coupler) Patents (Class 362/558)
  • Patent number: 11092310
    Abstract: A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 17, 2021
    Assignee: A-dec, Inc.
    Inventors: Christopher C. Stone, Takaaki Nakagawa, Eric Bube, Randall Joel Lonsdale, Patrick W. Berry, Ryan M. Williams, Joseph Van Domelen, Jason Alvarez, Jonathan E. Myers
  • Patent number: 10935711
    Abstract: The present invention provides a light guide plate (30) for an electronic paper display and the electronic paper display. The light guide plate (30) is arranged above a display surface of an electrophoretic display module (10), and it comprises a main body, wherein a tooth-shaped pattern is arranged on an in-light surface (33) of the main body. The electrophoretic display module (10) comprises a microcapsule electrophoretic display module or a microcup electrophoretic display module. The tooth-shaped pattern is formed by a plurality of arc-shaped projections (331), arc-shaped recesses (332), angle-shaped projections, or angle-shaped recesses (333).
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: March 2, 2021
    Assignee: Guangzhou OED Technologies, INC.
    Inventors: Yongqiang Lin, Jingquan Sun
  • Patent number: 10914976
    Abstract: Provided is an electronic device including: a sensing component; a polarization film disposed on the sensing component; and a quarter-wave plate disposed between the sensing component and the polarization film.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: February 9, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Jian-Cheng Chen, Hao-Yu Liou, Ayumu Mori, Kazuto Jitsui, Chung-Kuang Wei, Chin-Lung Ting, Keiko Edo, Minoru Shibazaki
  • Patent number: 10914435
    Abstract: A modular light system comprising a lightbar assembly with first and second conductive parts, each of which extend in a direction generally transverse to a longitudinal axis of the lightbar assembly. The modular lightbar system further comprises a lightbar assembly connector having a major surface and with a conductive part that extends in a direction generally transverse to the major surface. Such a design and configuration enables the lightbar assembly connector and lightbar assembly to be connected by moving the lightbar assembly connector in a direction generally transverse to the longitudinal axis of the lightbar assembly (or by moving the lightbar assembly in a direction generally transverse to the major surface of the lightbar assembly connector). It is thus possible to assemble a lightbar system comprised of a plurality of lightbar assemblies and lightbar assembly connectors, any of which are removable, replaceable, or serviceable.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: February 9, 2021
    Assignee: MAXLITE, INC.
    Inventors: Aymen Chami, Yaolin Tang
  • Patent number: 10914953
    Abstract: A tunable waveguide display includes a source waveguide, a first tunable lens (FTL), an output waveguide, and a second tunable lens (STL). The source waveguide receives light, expands the light in a first dimension, and outputs the expanded light. The FTL adjusts a wavefront of the expanded light to form adjusted light. The output waveguide receives the adjusted light, expands the adjusted light in a second dimension to form image light, and outputs the image light. The STL adjusts a wavefront of the image light. The FTL and the STL control an image plane of the image light.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: February 9, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Wai Sze Tiffany Lam, Yijing Fu, Lu Lu, Pasi Saarikko
  • Patent number: 10794565
    Abstract: A dielectric collimator (1) comprising a center lens (3), the center lens comprising a light input surface (31) and a light exit surface (32), the light exit surface (32) being convex and substantially hemispherical, and the light input surface (31) comprising a central surface section (312) forming a light transmitting portion of the center lens adapted for receiving incoming light (5) and transmitting it to be emitted from the light exit surface, and a peripherally extending, annular outer surface section (311) being substantially plane and adapted for redirecting incoming light (5) in such a manner that the redirected light (7) undergoes TIR at the light exit surface and is emitted back out of the light input surface.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: October 6, 2020
    Assignee: Signify Holding B.V.
    Inventor: Oliver Dross
  • Patent number: 10788611
    Abstract: A spotlight (1) is described for illuminating a film, studio, stage, event, and/or theatre environment. The spotlight comprises: a reflector arrangement (11) having a reflective inner surface (113), which delimits a reflector interior (114); a number of passive light guides (12) having feed points (121), which are arranged outside the reflector interior (114), and having light output points (122), which are arranged inside the reflector interior (114).
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: September 29, 2020
    Assignee: ARNOLD & RICHTER CINE TECHNIK GMBH & CO. BETRIEBS KG
    Inventor: Julius Muschaweck
  • Patent number: 10782188
    Abstract: A control device may include a removable faceplate, a planar printed circuit board (PCB), a structure located between the faceplate and the PCB, one or more LEDs (e.g., side firing LEDs) mounted to the PCB, and a light-guiding component. The structure may include an antenna configured to transmit or receive radio frequency signals. The faceplate may be configured to be mounted to the control device, and may include a light-conductive body and an opaque material provided on a front surface of the faceplate. At least one indicia may be engraved in the opaque material. The light-guiding component may include a planar portion and a curved portion. The planar portion may be located between the faceplate and the structure. The curved portion may extend between the LEDs on the printed circuit board and the planar portion to transmit light generated by the LEDs to the faceplate to illuminate the indicia.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: September 22, 2020
    Assignee: Lutron Technology Company LLC
    Inventors: William Taylor Shivell, Matthew Philip McDonald, Alexander Wade Gage, Alan Simchayoff, Dmitriy Vinokurov
  • Patent number: 10731811
    Abstract: The invention relates to the field of illumination technology and provides a simulated candle tip, which comprises a light source arranged in the flame base such that a light emitted by the light source can be projected through the reflecting chamber of the flame cover, to simulate real flames. By controlling the power on/off of the electromagnetic coil and the direction of current, attracting and repelling forces can be generated between the electromagnetic coil and the magnet, to enable the flame holder to perform regular swing motion in forward, backward, left and right directions. In this way, both the light source disposed at the upper end of the flame holder and the flame cover can perform swing motion along with the flame holder, to simulate flickering effect of real burning flames. In such case, a stable swing motion can be realized, and it is easy to control.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: August 4, 2020
    Assignee: AE TECHNOLOGIES CO., LTD.
    Inventor: Wenfeng Wu
  • Patent number: 10732339
    Abstract: A display apparatus includes a display panel, a light guide plate disposed behind the display panel and configured to guide light to the display panel, a light source configured to irradiate light to at least one side of the light guide plate, a diffusion plate disposed between the display panel and the light guide plate, and at least one diffusion plate support member coupled to the light guide plate and configured to support the diffusion plate. The light guide plate includes an optical pattern arranged in a light emitting surface facing the diffusion plate and at least one insertion hole for receiving the at least one diffusion plate support member. The optical pattern includes a pattern change region which surrounds at least a portion of the insertion hole.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Duk-jin Jeon, Dae-young Kim, Hyung-ki Kim, Yong-sung Yoo, Kil-hong Lee, Tae-hee Jeon
  • Patent number: 10732340
    Abstract: Techniques of providing illumination to a head-mounted display (HMD) involve providing off-board illumination apart from the HMD. An off-board illumination unit delivers the illumination to the HMD via optical fibers. The optical fibers are lightweight and do not restrict motion of a user. Because the power source is less restricted, the off-board illumination unit provides flexibility in the hardware used to generate the illumination. For example, the illumination unit may use red, green, and blue narrow-band diode lasers. Further, by controlling modes in the fiber and providing additional light-guiding hardware, the angles at which light strikes LCD pixels may be largely restricted to certain specified angles. Restricted angles of incidence enable the use of fast-switching liquid crystals without degrading the image quality. Such a restriction allows for high-resolution imaging using rapid switching of the liquid crystal which enables very low latencies.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: August 4, 2020
    Assignee: GOOGLE LLC
    Inventors: Martin Friedrich Schubert, Michael Grundmann
  • Patent number: 10683973
    Abstract: A modular light system comprising a lightbar assembly with first and second conductive parts, each of which extend in a direction generally transverse to a longitudinal axis of the lightbar assembly. The modular lightbar system further comprises a lightbar assembly connector having a major surface and with a conductive part that extends in a direction generally transverse to the major surface. Such a design and configuration enables the lightbar assembly connector and lightbar assembly to be connected by moving the lightbar assembly connector in a direction generally transverse to the longitudinal axis of the lightbar assembly (or by moving the lightbar assembly in a direction generally transverse to the major surface of the lightbar assembly connector). It is thus possible to assemble a lightbar system comprised of a plurality of lightbar assemblies and lightbar assembly connectors, any of which are removable, replaceable, or serviceable.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: June 16, 2020
    Assignee: MAXLITE, INC.
    Inventors: Aymen Chami, Yaolin Tang
  • Patent number: 10488708
    Abstract: A backlight module including a light output module, a first prism sheet, and a second prism sheet is provided. The light output module has a light output surface. The first prism sheet is disposed on the light output surface of the light output module. The first prism sheet has a plurality of first prism structures extending in a first extending direction. The second prism sheet is disposed on the first prism sheet. The second prism sheet has a plurality of second prism structures extending in a second extending direction. The angle between the first extending direction and the second extending direction is less than or equal to 30 degrees.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: November 26, 2019
    Assignee: Au Optronics Corporation
    Inventors: Ming-Lung Chen, Ming-Chun Hsu, Li-Jia Chen, Cheng-Chuan Chen, Chih-Kang Wu
  • Patent number: 10390690
    Abstract: A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: August 27, 2019
    Assignee: A-dec, Inc.
    Inventors: Christopher C. Stone, Takaaki Nakagawa, Eric Bube, Randall Joel Lonsdale, Patrick W. Berry, Ryan M. Williams, Joseph Van Domelen, Jason Alvarez, Jonathan E. Myers
  • Patent number: 10338294
    Abstract: In an example embodiment, a cross runner of a suspended ceiling grid is provided, wherein the cross runner may comprise a light fixture configured to function as a cross runner, and the light fixture may comprise a light guide.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: July 2, 2019
    Assignee: Southpac Trust International Inc., Trustee of the LDH Trust
    Inventor: Leslie David Howe
  • Patent number: 10302855
    Abstract: A liquid crystal display device includes a plurality of light source packages each having a light-emitting portion for emitting light, a light guide plate which light emitted from the light source packages enters through the incidence surface, having a height and a width, and from which the light exits through the exit surface, and a liquid crystal display panel for controlling, for each pixel, the orientation of a liquid crystal material to control the transmission of the light exiting through the exit surface. Each light source package has two opposing long sides and two opposing short sides when viewed from the direction of the light emitted by the light-emitting portion. The plurality of light source packages are arranged long side to long side in the direction along the width.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: May 28, 2019
    Assignee: Japan Display Inc.
    Inventor: Norihiro Nakamura
  • Patent number: 10254467
    Abstract: The present invention provides a backlight structure, including: a light source module having a first slant surface, where a slot is provided on the first slant surface, and the slot is configured to accommodate a light emitting element; a light guiding module having a light guiding plate and a light shielding layer, where a second slant surface is provided at a side of the light guiding module; and a baseplate configured to bear the light guiding module and the light source module. The light source module is engaged with the second slant surface of the light guiding module by means of the first slant surface.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 9, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Tien-Yu Yeh, Che-Wei Yang
  • Patent number: 10222518
    Abstract: A light diffusion sheet for overlaying is to be provided on a front face side of a prism sheet in a backlight unit of a liquid crystal display device, and has a substrate layer and a light diffusion layer overlaid on a front face side of the substrate layer, in which the light diffusion layer contains a resin matrix and resin beads dispersed in the resin matrix, wherein: a mode diameter in a volume-weighted particle size distribution of the resin beads is no less than 2.5 ?m and no greater than 5.5 ?m; a density of the resin beads per unit area is no less than 9,000 beads/mm2 and no greater than 24,000 beads/mm2; and an average thickness of the light diffusion layer is no less than 2 ?m and no greater than 9 ?m.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: March 5, 2019
    Assignee: Keiwa Inc.
    Inventor: Tadayuki Nonaka
  • Patent number: 10222529
    Abstract: A lighting system may include one or more light sources and one or more light guides. A lighting system may be integrated into a window, a skylight, an exterior light such as a headlight, a tail light, or a high center-mounted stop light, or other exterior or interior portions of a system such as a vehicle. The light guide may be embedded in an adhesive layer in a vehicle structure. The light guide may be index-matched to the adhesive layer so that unilluminated portions of the light guide are indistinguishable from the vehicle structure. The light guide may be formed from optical fibers. The optical fibers may include a light-scattering optical fiber that scatters light out of the vehicle structure. The light-scattering optical fiber may be fused to a non-scattering optical fiber that guides light from a light source to the light-scattering optical fiber.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: March 5, 2019
    Assignee: Apple Inc.
    Inventors: Gregory A. Cohoon, Clarisse Mazuir, Matthew E. Last
  • Patent number: 10222022
    Abstract: A fiber bundle includes a plurality of optical fibers, a light source, and a fiber cover. The light source is coupled to the plurality of optical fibers and operable to direct light into input ends of the plurality of optical fibers. The fiber cover has a predetermined cross-sectional shape configured to hold the plurality of optical fibers in a bundled position and to transmit light into an outer region of the plurality of optical fibers defining an illumination region for vehicle lighting functions.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: March 5, 2019
    Assignee: Valeo North America, Inc.
    Inventors: Brant Potter, Kayla Greene, Nate Montgomery
  • Patent number: 10211381
    Abstract: A light-emitting device includes: a semiconductor laser element; a supporting member located above the semiconductor laser element, the supporting member having a through-hole that allows light emitted from the semiconductor laser element to pass therethrough; a fluorescent member located in the through-hole, the fluorescent member containing a fluorescent material that is excitable by light emitted from the semiconductor laser element so as to emit light having a wavelength different from a wavelength of the light emitted from the semiconductor laser element; and a light-transmissive heat dissipating member including: a base portion, and a projecting portion projecting from the base portion into the through-hole. An upper surface of the projecting portion of the heat dissipating member is bonded to a lower surface of the fluorescent member. An upper surface of the base portion of the heat dissipating member is bonded to a lower surface of the supporting member.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: February 19, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Toshiaki Yamashita
  • Patent number: 10204248
    Abstract: The present invention relates to an active alignment method of a receiving device (2, 2?) including a sensor (4) and of a illumination device (6, 6?) including at least one light source (18, 8?) suitable for emitting a beam of light, including: —Assembling said receiving device (2, 2?); —Stably fixing said receiving device (2, 2?) on a chassis (30); —Actively aligning an optical group (11, 11?) of said illumination device (6, 6?) with respect to said light source (18, 18?); —Fixedly connecting said optical group (11, 11?) of said illumination device to said light source (18, 18?); —Actively aligning said illumination device (6, 6?) with respect to said receiving device (2, 2?); and —Stably fixing said illumination device (6, 6?) to said chassis (30).
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 12, 2019
    Assignee: DATALOGIC IP TECH S.R.L.
    Inventors: Anna Guagliumi, Federico Canini, Davide Bottazzi, Kurt Vonmetz
  • Patent number: 9897284
    Abstract: An LED-based lamp can be made to have a form factor compatible with fixtures designed for MR16 lamps. Such a lamp can have a housing that provides an external electrical connection. Inside the housing is disposed a single emitter structure having a substrate with multiple light-emitting diodes (LEDs) arranged thereon. Different LEDs produce light of different colors (or color temperatures). For example, at least one LED can produce a warm white light, while at least one other LED produces a cool white light and at least one other LED produces a red light. A total-internal-reflection (TIR) lens is positioned to collect light emitted from the single emitter structure and adapted to mix the light from the LEDs to produce a uniform white light. A diffusive coating is applied to a front face of the TIR lens for further color mixing.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 20, 2018
    Assignee: LedEngin, Inc.
    Inventors: Xiantao Yan, Wu Jiang, Zequn Mei
  • Patent number: 9726890
    Abstract: An image display device includes an image generating device, a light guide unit, and a light beam expanding device. The light guide unit includes a light guide plate, a first deflector, and a second deflector. The light beam expanding device expands a light beam incident from the image generating device along the Z direction and outputs the light beam to the light guide unit when the incident direction of light incident on the light guide plate is defined as the X direction and the propagation direction of light in the light guide plate is defined as the Y direction. The light beam expanding device is composed of a first reflective mirror on which light from the image generating device is incident and a second reflective mirror on which light from the first reflective mirror is incident and that outputs light to the light guide unit.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: August 8, 2017
    Assignee: Sony Corporation
    Inventors: Katsuyuki Akutsu, Nobuaki Kuribara, Teppei Imamura
  • Patent number: 9715056
    Abstract: A lighting system can comprise an edgelit panel, for example a lightguide that may have a panel or slab shape with an edge that receives light from an array of light emitting diodes extending along the edge. The lightguide can guide the received light towards an opposing edge of the lightguide and gradually release light to provide illumination. An optic can manage light that reaches the opposing edge of the lightguide, for example via softening, spreading, concentrating, or diffusing the light. The optic can have a tubular shape and may have lengthwise extending features for light management.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 25, 2017
    Assignee: Cooper Technologies Company
    Inventors: Scott David Wegner, Jerold Alan Tickner
  • Patent number: 9709231
    Abstract: An electronic lighting device and a method for manufacturing the same are disclosed. The electronic lighting device may comprise a core, which may comprises an enclosure, a light-emitting element, a flame sheet and a swing mechanism. The flame sheet is movably supported or suspended on the enclosure, and may comprise an upper sheet which is of a flame-like shape. The upper sheet is configured to expose above the top of the enclosure. The light-emitting element may be installed on the enclosure. A light outgoing direction of the light-emitting element may be intersected with the surface of the upper sheet so that the light of the light-emitting element is projected on the surface of the upper sheet. The swing mechanism is disposed beneath the flame sheet and can apply a force on the flame sheet to actuate the flame sheet to sway or swing. By the present application, a visual experience of true fire can be achieved and an interestedness and appreciation can be improved.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: July 18, 2017
    Assignee: SHENZHEN LIOWN ELECTRONICS COMPANY LTD.
    Inventor: Xiaofeng Li
  • Patent number: 9568656
    Abstract: A fiber optical light guide for transmits a light emitted from a light source in a light transmitting direction. The fiber optical light guide has an inlet-side end, an outlet side end, a plurality of core members, and an outer clad member. The light from the light source enters into the inlet-side end, and is emitted from the outlet-side end. The core members extend in the light transmitting direction. The outer clad member is positioned around the core members and provides an outer wall of the core members. The outer clad member has light diffusionability.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 14, 2017
    Assignee: DENSO CORPORATION
    Inventor: Michinaga Nagura
  • Patent number: 9523809
    Abstract: A light emitting apparatus in which light of different colors can be irradiated depending on the locations of a light guide member used in the light emitting apparatus and in accordance with the environment of a facility or a user's demand, a light source member includes a plurality of light source members each with one or more light sources, and adjacent light source parts emitting light of different colors with each other. The light guide member includes a recess which is formed between the respective input surfaces through which the light from the corresponding light source parts is input and which has a recess side surface that reflects at least some of the light input through the input surfaces; a plurality of extension parts that respectively guide mainly the light input from the corresponding light source parts through the input surfaces; and a cutout portion formed between the extension parts.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: December 20, 2016
    Assignee: S.K.G. CO., LTD.
    Inventors: Mitsuhide Sakamoto, Toru Funabashi
  • Patent number: 9500803
    Abstract: An apparatus for compensating an image of a display includes a light incident surface, a light emitting surface, and a plurality of light guiding channels independent from each other. The light incident surface is configured to be adjacent to the display to receive the image of the display into the apparatus. An area of the light emitting surface being greater than an area of the light incident surface. Each light guiding channel extends from the light incident surface to the light emitting surface. The light guiding channels is configured for transmitting the image from the light incident surface to the light transmitting surface and expanding the image such that the expanded image is displayed on the light emitting surface.
    Type: Grant
    Filed: January 25, 2014
    Date of Patent: November 22, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: I-Wei Wu
  • Patent number: 9500834
    Abstract: An apparatus for compensating an image of a display, includes a light incident surface, a light emitting surface, and a plurality of light guiding channels. An area of the light emitting surface is greater than an area of the light incident surface. The plurality of light guiding channels is independent from each other, each light guiding channel extends from the light incident surface to the light emitting surface, and light from the light incident surface is extended to the light emitting surface by the light guiding channels. The present invention further discloses a method for manufacturing the same.
    Type: Grant
    Filed: January 25, 2014
    Date of Patent: November 22, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: I-Wei Wu
  • Patent number: 9470831
    Abstract: An illumination apparatus for illuminating an image bearing surface, comprising including an end-coupled illuminator comprising a light pipe having a first end face, a lateral surface and an illuminator longitudinal axis, a first light source (e.g., an LED) arranged to emit first light into the light pipe through the first end face, and a plurality of extractors disposed at selected locations along the illuminator longitudinal axis each adapted to deflect a corresponding portion of the first light from the light pipe though the lateral surface. The apparatus also includes a diffuser positioned to receive the portions of the first light and diffuse the portions of the first light in the direction of the illuminator longitudinal axis. The illumination apparatus may be included in a copier or a printer.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: October 18, 2016
    Assignee: Xerox Corporation
    Inventor: Robert Paul Herloski
  • Patent number: 9454012
    Abstract: A wearable display includes: a lighting element; an optical modulation element; a light guiding element configured to guide light from the lighting element to the optical modulation element; a holder configured to integrally hold the lighting element, the optical modulation element, and the light guiding element; and a virtual-image optical assembly that is connected to the holder and configured to generate a virtual image of image light from the optical modulation element.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: September 27, 2016
    Assignee: Sony Corporation
    Inventor: Toshio Enokido
  • Patent number: 9435955
    Abstract: An optical guide comprises an injection zone intended to inject into the optical guide a light signal and an extraction zone intended to provide the light signal after transport by the optical guide. The optical guide comprises, in a superposed manner, at least two guidance elements. In a zone situated between the injection zone and the extraction zone, the guidance elements are partially separated from one another by a semi-reflective coating of length, in the direction or propagation of the light signal in the optical guide, dependent on a minimum angle of incidence of the light signal and on the thickness of at least one of the guidance elements that the semi-reflective coating separates.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: September 6, 2016
    Assignee: OPTINVENT
    Inventors: Guilhem Dubroca, Pascal Benoit, Xavier Hugel, Khaled Sarayeddine
  • Patent number: 9393440
    Abstract: The invention relates to a radiation emitting device (1) for application near mammal tissue (2), comprising: a substrate (3) having a front surface (4) and an opposing back surface (5), said substrate accommodating at least one radiation source (6) on said front surface (4). Said at least one radiation source (6) is arranged for applying energy on said mammal tissue (2). A heat spreading section (7) is arranged on said back surface (5) of said substrate (3) in thermal contact with said at least one radiation source (6). Said heat spreading section (7) has an extended area (8) extending beyond said substrate (3) in a direction substantially parallel to said substrate (3). Said extended area (8) of said heat spreading section (7) is arranged in thermal contact with said mammal tissue (2).
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: July 19, 2016
    Assignee: Koninklijke Philips N.V.
    Inventors: Bastiann Uitbeijerse, Georges Marie Calon
  • Patent number: 9363406
    Abstract: Provided is a light source unit that emits linear light to an original, the light source unit including: light sources that emit light; a light guide that is formed in a rod shape and that guides the light from the light sources to the original; a frame that houses the light sources and the light guide; and a circuit board including a conduction portion electrically connected to the light sources, wherein the circuit board is provided with a slit in a longitudinal direction of the light guide, the slit is disposed closer to the original than the light guide, and the light from the light guide is emitted to the original through the slit.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: June 7, 2016
    Assignee: CANON COMPONENTS, INC.
    Inventor: Shuuichi Shimoda
  • Patent number: 9353916
    Abstract: A luminaire comprising a lamp comprising an outer structure, a light source configured to emit a source light and carried by the outer structure, a middle structure connected to the outer structure, and a bi-pin base connected to the middle structure. The lamp may further comprise a light guide having an inner surface and an outer surface and a heat dissipating frame having a contact surface in thermal communication with the outer surface of the light guide and comprising a plurality of heat sink rods positioned to abut each other to define the contact surface of the heat dissipating frame. The light source may be configured to emit the source light so as to be incident upon the inner surface of the light guide. The light guide may be configured to change the source light into a shaped light that illuminates a space proximate to the luminaire.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: May 31, 2016
    Assignee: Lighting Science Group Corporation
    Inventors: Fredric S. Maxik, David E. Bartine
  • Patent number: 9291763
    Abstract: A variety of light-emitting devices are disclosed that are configured to output light provided by a light-emitting element (LEE). In general, embodiments of the light-emitting devices feature a light-emitting element, a scattering element that is spaced apart from the light-emitting element and an extractor element coupled to the scattering element, where the extractor element includes, at least in part, a total internal reflection surface. Luminaires incorporating light-emitting devices of this type are also disclosed.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: March 22, 2016
    Assignee: Quarkstar LLC
    Inventors: Hans Peter Stormberg, Robert C. Gardner, Gregory A. Magel, Ferdinand Schinagl, Roland H. Haitz
  • Patent number: 9274265
    Abstract: A surface light source apparatus capable of keeping a high in-plane brightness uniformity and a high light utilization efficiency without increasing the size of a frame, and also to provide a display apparatus including the surface light source apparatus. The surface light source apparatus includes a point light source, and a light guide plate having a hole formed near first side surface that is one side surface thereof, the hole being formed at a position where the point light source is to be arranged. The first side surface of the light guide plate has, in a portion thereof near the hole, a prism having a saw-toothed shape in a cross-section thereof parallel to a front surface of the light guide plate.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: March 1, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventor: Seiji Sakai
  • Patent number: 9274270
    Abstract: The invention relates to a light-output device (1; 10; 30) controllable to provide different light-output functions. The light-output device comprises a light-source arrangement (12; 31) configured to emit light; and a light-guiding system (10; 32) arranged to receive the light and configured to guide the light to at least one light-output surface of the light-guiding system. The light-guiding system (10; 32) comprises at least a first light-guide (11b; 37) and a second light-guide (11a; 40, 41); and the light-guiding system (10; 32) is movable relative to the light-source arrangement (12; 31) between at least a first position where light output by the light-source arrangement is guided by the first light-guide (11b; 37) to provide a first light-output function, and a second position where light output by the light-source arrangement is guided by the second light-guide (11a; 40, 41) to provide a second light-output function, different from the first light-output function.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 1, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Michel Cornelis Josephus Marie Vissenberg, Ramon Pascal van Gorkom, Peter Johannes Martinus Bukkems, Mark Johannes Antonius Verhoeven, Andreas Aloysius Henricus Duijmelink, Monica Antonia Maria De Wilt, Richard Josephus Arnoldus Maria Foederer
  • Patent number: 9222649
    Abstract: A stage lighting fixture having: a casing having a closed first end and an open second end; a light source housed inside the casing, close to the first end, and which emits a light beam along an optical axis; an optical assembly positioned to intercept the light beam, and having a focal point located between the light source and the optical assembly; and a reflector coupled to the light source; the reflector and the light source being designed and coupled to concentrate the light beam substantially at a work point substantially coincident with the focal point of the optical assembly; and the light source being defined by a short-arc lamp to project a light bar.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 29, 2015
    Assignee: CLAY PAKY S.P.A.
    Inventors: Pasquale Quadri, Angelo Cavenati
  • Patent number: 9201184
    Abstract: A light guide plate includes a plate body and a light incident portion, wherein the plate body has a top plate surface. The light incident portion is formed on a side of the plate body and has a thickness increasing as the light incident portion extends away from a center of the plate body. In addition, the light incident portion has a top surface connected to the top plate surface and lifted from the top plate surface to include an angle with the top plate surface. The top surface includes a first incline and a second incline, wherein the first incline connects to a side of the top plate surface and has a first average slope. The second incline has a side connected to a side of the first incline opposite to the top plate surface and has a second average slope larger than the first average slope.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: December 1, 2015
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Yi-Wen Chang, Fu-Cheng Fan
  • Patent number: 9063367
    Abstract: A direct-type backlight unit is provided for improving a dark area problem on the diffusion plate. The direct-type backlight unit includes an optical sheet; a diffusion plate for supporting the optical sheet; a bottom plate, disposed below the diffusion plate; a plurality of light emitting devices (LEDs), disposed between the diffusion plate and the bottom plate; a plurality of supporting elements, disposed between the diffusion plate and the bottom plate and fixed on the bottom plate, each supporting element including: a top portion having a light transmissive section through which light emitted by the LEDs pass; and a bottom portion, fixed on the bottom plate.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: June 23, 2015
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Che-Chang Hu, Kuang-Yao Chang, Zan-Jia Su
  • Publication number: 20150131306
    Abstract: Light diffusing optical fibers and light emitting apparatuses including light diffusing optical fibers are disclosed. In one embodiment, a light emitting apparatus includes a base, a transparent or translucent enclosure affixed to the base, a light diffusing optical fiber including a coiled filament enclosed within the enclosure, and a light source optically coupled to the light diffusing optical fiber. The coiled filament includes a glass core, an outer surface, and a plurality of light scattering structures situated within the coiled filament for scattering light through the outer surface of the coiled filament. The coiled filament has a loss in a range of 0.5 dB/turn to 10.0 dB/turn at a turn radius of less than 50 mm.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: CORNING INCORPORATED
    Inventors: Michael Lucien Genier, Vineet Tyagi
  • Patent number: 9004708
    Abstract: An apparatus to widen the light dispersion pattern of a light source shining through an overlay window from the viewing side of an electrical computer system. The overlay window is coupled to a panel of the system. The overlay window includes a transparent material, which has a first surface facing the light source and a second surface facing away from the light source to define a viewing side. An opaque material can be disposed on the first surface to partially cover the first surface to form a viewing window. A first diffusing mechanism is disposed on the first surface, and a second diffusing mechanism is disposed on the second surface. In response to the passage of the light output through the viewing window, the light dispersion pattern of the light output from the viewing side of the overlay window has a viewing angle of up to about 180 degrees.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: April 14, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Perry L. Hayden, Sr., Ronald D. Lutz, Jr., Charles Ingalz, Bill Hin Yi Fong
  • Patent number: 8985827
    Abstract: A backlight module includes a light source, a reflector, an optical fiber group, and a light guide unit. The light source emits light rays. The reflector defines a number of through holes. The optical fiber group includes a number of optical fibers corresponding to the through holes. Each of the optical fibers includes a first end and a second end opposite to the first end. The first ends of the optical fibers receive the light rays from the light source. The second ends of the optical fibers are inserted into the corresponding through holes. The light guide unit is positioned close to the second ends, receives the light rays from the second ends, and makes the received light rays distribute uniformly. The reflector reflects a portion of the light rays reflected by the light guide unit to the light guide unit again.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: March 24, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Po-Chou Chen
  • Publication number: 20150078030
    Abstract: An optical coupler for a vehicle lighting system includes a housing having first and second openings, each opening having an optical axis passing through the opening into the housing, with the optical axes of the openings forming an obtuse angle. The optical coupler has one or more optics carried by the housing and arranged between the openings such that light entering the first opening along its optical axis passes through the one or more optics and exits through the second opening along the other optical axis. The optic(s) may include a first Fresnellian surface adjacent the first opening and a second Fresnellian surface adjacent the second opening such that light passing through the optical coupler from the first opening to the second opening passes through both Fresnellian surfaces and is redirected from the optical axis of the first opening to the optical axis of the second opening.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: David Edward Ramey, Linsheng Chen
  • Publication number: 20150062954
    Abstract: A luminary fabric, useful for a variety of applications including signage, has at least one light-diffusing optical fiber woven, knitted, crocheted or otherwise integrated into the fabric. The light-diffusing optical fiber is coupled to at least one light source such as a laser or a light emitting diode. At least one coating is applied over at least a section of the outer surface of the optical fiber along its length. The coating contains at least one luminophore that absorbs energy from the light source and luminesces at a different higher wavelength. Multiple coatings containing one or more luminophores, one or more pigments, and/or one or more dyes may be employed to provide a variety of interesting visual effects.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 5, 2015
    Applicant: CORNING INCORPORATED
    Inventors: Carl Edgar Crossland, Vineet Tyagi
  • Patent number: 8967820
    Abstract: A pointer structure including: a pointer main body formed by a light guide member and having a light guide portion closer to a light source and a light guide portion closer to a visualizing portion that are continued together through a pointer bend portion; an outer reflection surface formed at an outer corner of the pointer bend portion so that a ray of light from a light source can be incident thereon; and an inner reflection surface formed at an inner corner of the pointer bend portion and having a normal line thereof intersecting with a normal line of the outer reflection surface, the normal line of the inner reflection surface intersecting with the normal line of the outer reflection surface at an including angle ?, on a light input side, smaller than 180 degrees and greater than 90 degrees.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 3, 2015
    Assignee: Yazaki Corporation
    Inventor: Mikiya Amano
  • Patent number: 8967845
    Abstract: Light diffusing optical fiber bundles, illumination systems including light diffusing optical fiber bundles, and methods of affixing light diffusing optical fiber bundles to polymer optical fibers are disclosed. A light diffusing optical fiber bundle includes an optically transmissive jacket and a plurality of light diffusing optical fibers disposed within the optically transmissive jacket. Each of the plurality of light diffusing optical fibers includes a glass core including a plurality of nano-sized voids. The plurality of light diffusing optical fibers extend along a length of the optically transmissive jacket such that the plurality of diffusing optical fibers are not interwoven.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 3, 2015
    Assignee: Corning Incorporated
    Inventors: Kevin Wallace Bennett, Edward John Fewkes, Stephan Lvovich Logunov, Vineet Tyagi
  • Patent number: RE47288
    Abstract: Light diffusing optical fibers for use in illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including both a scattering layer and a phosphor layer.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: March 12, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Stephan Lvovich Logunov, Paul John Shustack