Reflective Means (epo) Patents (Class 257/E33.072)
  • Patent number: 11532769
    Abstract: Disclosed is a light-emitting diode which includes a light-emitting epitaxial layered unit, an insulation layer, a transparent conductive layer, a protective layer, a first electrode, and a second electrode. The light-emitting epitaxial layered unit includes a first semiconductor layer, a second semiconductor layer, and a light-emitting layer sandwiched between the first and second semiconductor layers, and has a first electrode region which includes a pad area and an extension area. The insulation layer is disposed on the first semiconductor layer and at the extension area of the first electrode region. Also disclosed is a method for manufacturing the light-emitting diode.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: December 20, 2022
    Assignee: XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Su-hui Lin, Feng Wang, Ling-yuan Hong, Sheng-Hsien Hsu, Sihe Chen, Dazhong Chen, Kang-Wei Peng, Chia-Hung Chang
  • Patent number: 11531153
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a plurality of light emitting devices on the substrate; a first reflective layer on the substrate; a resin layer on the first reflective layer and including a first surface from which light emitted from the light emitting device is extracted; a second reflective layer on the resin layer; and a light extraction layer on the first surface of the resin layer, wherein the first surface of the resin layer has a convex portion having a convex exit surface facing to each of the light emitting devices, and concave portions between the convex portions, and the light extraction layer may include a first extraction portion having protrusions on each exit surface, and second extraction portions concave between the plurality of protrusions.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 20, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Dong Hyun Lee, Moo Ryong Park, Young Jae Choi
  • Patent number: 11527864
    Abstract: A light emitting device includes: a base; a first semiconductor laser element disposed on an upper surface of the base and configured to emit first light; a first light reflecting member disposed on the upper surface of the base, the first light reflecting member having a first light reflecting face including a plane configured to reflect the first light; a second semiconductor laser element disposed on an upper surface of the base and configured to emit second light; a second light reflecting member disposed on the upper surface of the base, the second light reflecting member having a second light reflecting face including a plane configured to reflect the second light; and a phosphor member onto which the first light reflected from the first light reflecting member and the second light reflected from the second light reflecting member are irradiated.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: December 13, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Tadayuki Kitajima, Soichiro Miura
  • Patent number: 11506346
    Abstract: A light emitting device includes a base; a plurality of semiconductor laser elements disposed on the base and configured to emit light laterally from the plurality of semiconductor laser elements; a reflecting member disposed on the base and configured to reflect light from the semiconductor laser elements; a surrounding part disposed on the base and surrounding the semiconductor laser elements and the reflecting member; a wiring part disposed on the base so as to extend to a location outside of the surrounding part; a radiating body disposed on the surrounding part and having an opening; and a wavelength converting member that is located in the opening of the radiating body, the wavelength converting member being configured to convert a wavelength of light that is emitted from the plurality of semiconductor laser elements and reflected upward by the reflecting member.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: November 22, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Kazuma Kozuru, Shinichi Nagahama
  • Patent number: 11502277
    Abstract: An organic light-emitting diode display panel includes a substrate and a light-emitting pixel array disposed on the substrate, and the light-emitting pixel array includes a plurality of light-emitting pixels. Each of the plurality of light-emitting pixels comprises a convex structure layer, a light-emitting element, a planarization layer and a microlens structure which are sequentially stacked on the substrate. The convex structure layer comprises at least one convex structure which is convex in a direction facing away from the substrate and at least one convex surface where each of the at least one convex structure is in contact with the light-emitting element. The microlens structure and convex structure are aligned each other that their vertical projections on the substrate overlap with a vertical projection of the light-emitting element on the substrate.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: November 15, 2022
    Assignee: SEEYA OPTRONICS CO., LTD.
    Inventor: Zhongshou Huang
  • Patent number: 11430933
    Abstract: A lighting device and a method of manufacturing a lighting device are described. A lighting device includes a heat sink providing a first mounting area for at least one LED element, a second mounting area for at least one electrical connection assembly, and a cavity adjacent the first mounting area. An inner part is arranged at least partially inside the cavity and includes at least a first and a second connection terminal and at least one electrical connection path. The first and the second connection terminal are provided on a surface of the inner part. The first connection terminal is arranged between the first mounting area and the second connection terminal. The second connection terminal is arranged between the second mounting area and the first connection terminal. The electrical connection path is provided at least partially inside the inner part connecting the first and second electrical terminal.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: August 30, 2022
    Assignee: Lumileds LLC
    Inventors: Harry Gijsbers, Georg Henninger
  • Patent number: 11417793
    Abstract: Provided is a method of manufacturing a semiconductor optical device, which makes it possible to reduce the thickness of a semiconductor optical device including InGaAsP-based III-V compound semiconductor layers containing at least In and P to a thickness smaller than that of conventional devices, and provide a semiconductor optical device. The method of manufacturing a semiconductor optical device includes a step of forming a semiconductor laminate on the InP growth substrate; a step of bonding the semiconductor laminate to the support substrate formed from a Si substrate, with at least the metal bonding layer therebetween; and a step of removing the InP growth substrate.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: August 16, 2022
    Assignee: DOWA Electronics Materials Co., Ltd.
    Inventors: Jumpei Yamamoto, Tetsuya Ikuta
  • Patent number: 11355897
    Abstract: In an embodiment a light-emitting component includes a housing and an edge emitting semiconductor laser arranged in the housing, wherein the semiconductor laser is configured to emit light at a side face in an angle range, wherein the housing includes an emission opening for emitting the light, wherein the semiconductor laser is arranged in a first layer having a first material, wherein a second layer is arranged on the first layer, the second layer having a second material, wherein the first layer and the second layer are transmissive to the light, wherein the second layer is arranged between the first layer and the emission opening, wherein the emission opening lies at least partly outside the angle range of the semiconductor laser, and wherein a part of the light is directed directly onto an interface between the first and second layers.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: June 7, 2022
    Assignee: OSRAM OLED GMBH
    Inventors: Hubert Halbritter, Roland Enzmann, Andreas Wojcik
  • Patent number: 11322727
    Abstract: An object of the present invention is to provide an optical device that can accomplish both the effect of preventing external light reflection and the improvement of utilization efficiency of light emitted from an organic electroluminescent element. The object is achieved by an optical device having an organic electroluminescent substrate, a circularly polarized light-separating layer that has a liquid crystal alignment pattern, in which the direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in one direction in a plane, and separates light into right-handed circularly polarized light and left-handed circularly polarized light, a patterned retardation layer that converts circularly polarized light into linearly polarized light and has a plurality of regions among which the direction of a slow axis varies in the same plane, and a polarizer.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: May 3, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saitoh, Hiroshi Sato
  • Patent number: 11322907
    Abstract: A light emitting element housing package of the present disclosure includes a base part including a first surface including a first recessed part for mounting a light emitting element. Surface roughness Sa of at least such a region of a bottom surface of the first recessed part that is opposite to a light emitting element mounted on the first recessed part is smaller than surface roughness Sa of a region other than the first recessed part of the first surface. Further, a light emitting device of the present disclosure includes the light emitting element housing package and a light emitting element housed in the light emitting element housing package. Further, a light emitting module of the present disclosure includes the light emitting device and a module substrate on which the light emitting device is mounted.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 3, 2022
    Assignee: KYOCERA CORPORATION
    Inventors: Daisuke Ueyama, Chiaki Doumoto, Takeshi Kamikawa
  • Patent number: 11313536
    Abstract: A light emitting device includes: a light emitting element having a dominant wavelength in a range greater than or equal to 380 nm and less than or equal to 470 nm; a wavelength conversion member that is disposed on the light emitting element and includes: a translucent member, and a first fluorescent material layer interposed between the light emitting element and the translucent material, the first fluorescent material layer comprising a resin that contains a first fluorescent material, and the first fluorescent material comprising at least one compound selected from (Ca, Sr)AlSiN3: Eu and (Ca, Sr, Ba)2Si5N8: Eu; and a covering member that covers sides of the wavelength conversion member and surrounds the light emitting element, the covering member comprising light reflecting material and a second fluorescent material, and the second fluorescent material comprising at least one compound selected from (Ca, Sr)AlSiN3: Eu and (Ca, Sr, Ba)2Si5N8: Eu.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: April 26, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Makiko Iwasa, Yuji Sato, Hiroki Fukuta
  • Patent number: 11107959
    Abstract: The invention relates to a light emitting device (LED), especially a LED at least partly embedded in transparent or translucent silicone fill, whereby the embedded LED is housed in a white silicone housing. Here and in the following, the wording transparent silicone fill always means a transparent or translucent silicone material. The invention further relates to a method for embedding the LED partly in a white silicone housing on the one hand and partly in transparent silicone fill on the other hand. The invention finally relates to the transparent silicone fill. The inner part of the LED device is at least partly embedded in transparent silicone fill, wherein the at least partly embedded LED device is housed in a white silicone housing comprising a white box silicone. A part of the inner part of the LED device is embedded in the white box silicone.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: August 31, 2021
    Assignee: Lumileds LLC
    Inventors: Floris Maria Hermansz Crompvoets, Christian Kleijnen, Georg Henninger, Danijel Labas, Gerhard Hebbinghaus
  • Patent number: 10942393
    Abstract: A light source assembly, a backlight module, and a display device are provided in the field of display technology. The light source assembly includes a light source and a collimator. The collimator is arranged on a side of the light source where a light-emergent surface is located. When light emitted from the light source is incident on a preset surface of the collimator, a first included angle is formed between the light and the light-emergent surface. When the light is emitted out of the preset surface, a second included angle is formed between the light and the light-emergent surface. The first included angle is less than the second included angle, and the amount of light incident on per unit area of the preset surface is greater than a preset light amount threshold.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: March 9, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lu Yu, Junjie Ma, Xuerong Wang, Caizheng Zhang, Jian Sang, Haiwei Sun, Xue Dong
  • Patent number: 10788163
    Abstract: A solid state lamp for retrofit of an HID includes a circumferential array of solid state light sources mounted on circuit boards, a heat sink located in the lamp's interior volume, and a fan positioned in the interior volume to force airflow across the heat sink. A capper assembly includes at least one aperture to vent the interior volume, and an intermediate circuit board within the capper assembly. The intermediate circuit board distributes electrical power to the circuit boards by tabs and contacts extending from the boards that are mechanically bonded together. An optical transmissive shield is positioned exterior to the circumferential array, and can include prismatic structures to direct light emitted from the LED sources in an off axis direction.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 29, 2020
    Assignee: CURRENT LIGHTING SOLUTIONS, LLC
    Inventors: Raghu Ramaiah, Thomas Alexander Knapp, Benjamin Lee Yoder, James William Firis
  • Patent number: 10754191
    Abstract: A light source module includes a plurality of light emitting dies provided on a bearing surface of a substrate, an encapsulation layer covering the bearing surface and the light emitting dies, a plurality of reflecting recesses respectively formed opposite the plurality of light emitting dies on a light exit surface of the encapsulation layer and having a surrounding surface inclined relative to the light exit surface, and a plurality of reflection patterns respectively disposed in the plurality of reflecting recesses. A display panel might be coupled to the light emitting surface.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 25, 2020
    Assignee: Coretronic Corporation
    Inventors: Wen-Hsun Yang, Yu-An Huang
  • Patent number: 10753597
    Abstract: An appliance includes a user interface assembly. The user interface assembly includes a plurality of indicator lights mounted on a printed circuit board. An opaque material is disposed within the printed circuit board between adjacent indicator lights of the plurality of indicator lights. The adjacent indicator lights are optically separated by the opaque material.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: August 25, 2020
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Ricardo Alberto Aguiar, Timothy David Kaiser
  • Patent number: 10643856
    Abstract: Laterally insulated integrated circuit chips are fabricated from a semiconductor wafer. Peripheral trenches are formed in the wafer which laterally delimit integrated circuit chips to be formed. A depth of the peripheral trenches is greater than or equal to a desired final thickness of the integrated circuit chips. The peripheral trenches are formed by a process which repeats successive steps of a) ion etching using a sulfur hexafluoride plasma, and b) passivating using an octafluorocyclobutane plasma. Upon completion of the step of forming the peripheral trenches, lateral walls of the peripheral trenches are covered by an insulating layer of a polyfluoroethene. A thinning step is performed on the lower surface of the wafer until a bottom of the peripheral trenches is reached. The insulating layer is not removed.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: May 5, 2020
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Mathieu Rouviere, Mohamed Boufnichel, Eric Laconde
  • Patent number: 10479073
    Abstract: Systems are provided for a frame of an optic element of a lighting system. In one example, a baffle frame including extended exterior sidewalls and inner angled walls extending below a bottom surface of the optic element may reduce light reflecting off a workpiece and escaping outside and interior of the baffle frame.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: November 19, 2019
    Assignee: Phoseon Technology, Inc.
    Inventor: Doug Childers
  • Patent number: 10458624
    Abstract: An optical system for collimation of incoming light, comprising: a body (102); a recess (110) formed on a first side (104) of the body (102), the recess (110) having a central light entry surface (114) and a side light entry surface (112); a central light exit surface (118) provided at a second side of the body (108), which second side (108) is opposite to said first side (104); said central light entry surface (114) being arranged in relation to the central light exit surface (118) such that incoming light falling on the central light entry surface (114) is directed to the central light exit surface (118), a total internal reflection surface (116) provided at a side surface of the body (102), which is arranged such that incoming light falling on the side light entry surface (112) of the recess (110) is directed towards the total internal reflection surface (116) so as to be subject to total internal reflection towards the second side (108) of the body (102); and a rejection area (120) surrounding said centra
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: October 29, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventor: Oliver Dross
  • Patent number: 10308174
    Abstract: A vehicle includes a truck bed and a lighting assembly configured to illuminate the truck bed. The lighting assembly includes a light source, a collimator positioned in front of the light source, and an outer lens positioned in front of the collimator. The collimator and the outer lens establish a lens arrangement having a unitary body. The light generated by the light source is collected within the collimator and is directed at a downward angle toward a floor of the truck bed by the outer lens.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: June 4, 2019
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Linsheng Chen
  • Patent number: 10256602
    Abstract: A laser component has a housing, which includes a carrier having a cavity with a bottom surface and a sidewall, wherein the cavity widens starting from the bottom surface, the side wall is inclined relative to the bottom surface by an angle different from 45°, a laser chip, an emission direction of which is oriented parallel to the bottom surface, is arranged on the bottom surface in the cavity, a reflective element is arranged in the cavity and bears on an edge between the bottom surface and the side wall, a reflective surface of the reflective element defines an angle with the bottom surface of the cavity, and the emission direction defines an angle of 45° with the reflective surface of the reflective element.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: April 9, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Dominik Scholz
  • Patent number: 10254521
    Abstract: There is provided a luminaire (1) and a collimating optics (2) for LED lights (5). The collimating optics (2) comprises a reflection collimator (3) having a first aperture (7) for allowing incoming light from a LED light (5) to enter the collimator (3) and a second aperture (9) for allowing outgoing light to exit the collimator (3). The reflection collimator (3) further has a wall (15) with a reflective inner surface for guiding the incoming light from the first aperture (7) towards the second aperture (9). A first convex lens (11) is arranged at a distance from the first aperture (7) for refracting the incoming light, and a second convex lens (13) is arranged at the second aperture (9) for refracting and collimating the outgoing light. With the disclosed collimating optics the collimating capability is improved without the size of the optics being increased.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: April 9, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Li Wei Sun, Yun Li, Yan Meng Sun, Li Cheng
  • Patent number: 10190736
    Abstract: A light emitting diode can emit light along an axis. An optic can be positioned to direct the emitted light off of the axis. The optic can comprise a base and a projection that rises from the base towards the light emitting diode. The projection can comprise a cavity that is oriented to receive the light emitted by the light emitting diode. The cavity can be slanted relative to the axis of the light emitting diode. A convex surface disposed at the bottom of the cavity can condense, focus, or collimate light. The projection can further comprise sides that totally internally reflect light.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 29, 2019
    Assignee: COOPER TECHNOLOGIES COMPANY
    Inventors: Steven Walter Pyshos, Ren Chao, Smita Sudheer Anaokar
  • Patent number: 10168516
    Abstract: A tractrix-based optical device is provided. The tractrix-based optical device includes a light receiving surface, a light emitting surface, and an intermediate portion of transparent material between the light receiving surface and the light emitting surface. The intermediate portion includes a boundary connective surface that adheres to a tractrix when in cross-section to provide total internal reflection of light propagating from the light receiving surface to the light emitting surface. The tractrix-based optical device can align and correlate light from multiple off-axis light emitting elements, or from an extended source light emitting element, thereby providing a generally uniform output distribution.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 1, 2019
    Assignee: Lumenflow Corp.
    Inventor: Harold W. Brunt, Jr.
  • Patent number: 10161595
    Abstract: An automated luminaire with an array of light sources configured in a plurality of primary TIR optics with central light blocks. The light blocks are configured to block or redirect light beam at angles likely to cause undesirable light spill.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: December 25, 2018
    Assignee: Robe Lighting s.r.o.
    Inventors: Pavel Jurik, Josef Valchar
  • Patent number: 10151448
    Abstract: A display apparatus according to an embodiment of the present disclosure comprises: a substrate; a light-emitting unit including a light emitting element mounted on the substrate and a lens placed above the light-emitting element; a reflective layer placed on the upper surface of the substrate; an optical sheet placed above the reflective layer and placed at a height at which the optical sheet is spaced from the light-emitting unit; and a display panel placed on the upper surface of the optical sheet, wherein the lens has a cutout portion formed therein by depressing a part of the side surface thereof toward the center thereof, thereby providing an anisotropic light distribution.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 11, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyungjoon Lee, Wondo Kee, Jihee Park, Woongjoon Hwang, Juyoung Joung
  • Patent number: 10139541
    Abstract: A light guide element and a lamp are provided. The light guide element includes a light-incident surface, a light-emitting surface, an outer surface and an inner surface. The light-incident surface has a first outer peripheral edge and a first inner peripheral edge. The light-emitting surface is opposite to the light-incident surface and has a second outer peripheral edge and a second inner peripheral edge. The outer surface connects the first outer peripheral edge and the second outer peripheral edge. The inner surface connects the first inner peripheral edge and the second inner peripheral edge. A first opening defined by the inner surface adjacent to the first inner peripheral edge is larger than a second opening defined by the inner surface adjacent to the second inner peripheral edge.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 27, 2018
    Assignee: Radiant Opto-Electronics Corporation
    Inventor: Wei-Chen Lin
  • Patent number: 10060593
    Abstract: A daytime running lamp (1) for being retrofitted on a road vehicle, comprising a reflector (4) with a reflective surface (5) for reflecting light in a general direction (I) of illumination and a plurality of light sources (3) arranged in a pattern having an extension along a horizontal axis (A). The light emitted by the plurality of light sources (3) has directional components in two opposite horizontal directions (H1, H2) along the horizontal axis (A) and a directional component in a vertical direction (V) perpendicular to the horizontal axis (A). The reflective surface (5) has a curvature such that the directional component in the vertical direction (V) is directed towards the general direction (I) of illumination, and the directional component in at least one of the horizontal directions (H1, H2) upon reflection in the reflective surface (5) is substantially unchanged by the reflection.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: August 28, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Hua Bing Zheng, Albrecht Johannes Kraus, Matthias Daniel Epmeier
  • Patent number: 10054281
    Abstract: The invention relates to a lighting apparatus, particularly for a motor vehicle, having a plurality of illuminants as light sources that each produce an individual light distribution, having means for setting the direction of radiation of the individual light distribution of the illuminants and having means for setting the focusing of the individual light distribution of the illuminants and having control means for controlling the settings of the individual light distributions to produce a superimposed overall light distribution by dint of superimposition of the individual light distributions of at least single illuminants.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: August 21, 2018
    Assignee: HELLA KGAA HUECK & CO.
    Inventor: Ingo Hoffmann
  • Patent number: 9915409
    Abstract: A lens for distribution of light from a light emitter. The lens has thick and thin wall portions between inner and outer lens surfaces. The thick wall portion(s) are at least twice as thick as the thin wall portion(s). At least one of the inner and outer surfaces has a texturing for diffusion of emitter light passing therethrough. The lens may include at least one interface between two materials with different indices of refraction. At least one surface of the interface may have a texturing for diffusion of emitter light passing therethrough. And, a method for manufacturing of the lens by forming a lens region with a textured surface portion by injecting the thermoplastic elastomer into an injection-molding cavity defined by a shape-forming configuration with a texturing in at least one area of the cavity. The shape-forming configuration is configured to shape a thermoplastic elastomer into such thickness that the set elastomer retains the texturing.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 13, 2018
    Assignee: Cree, Inc.
    Inventors: Kurt Wilcox, Craig Raleigh, Corey Goldstein
  • Patent number: 9903992
    Abstract: A light guide element and a lamp are provided. The light guide element includes a light-incident surface, a light-emitting surface, an outer surface and an inner surface. The light-incident surface has a first outer peripheral edge and a first inner peripheral edge. The light-emitting surface is opposite to the light-incident surface and has a second outer peripheral edge and a second inner peripheral edge. The outer surface connects the first outer peripheral edge and the second outer peripheral edge. The inner surface connects the first inner peripheral edge and the second inner peripheral edge. A first opening defined by the inner surface adjacent to the first inner peripheral edge is larger than a second opening defined by the inner surface adjacent to the second inner peripheral edge.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 27, 2018
    Assignee: Radiant Opto-Electronics Corporation
    Inventors: Wei-Chen Lin, Che-Wei Chang
  • Patent number: 9829180
    Abstract: A display apparatus according to an embodiment of the present disclosure comprises: a substrate; a light-emitting unit including a light emitting element mounted on the substrate and a lens placed above the light-emitting element; a reflective layer placed on the upper surface of the substrate; an optical sheet placed above the reflective layer and placed at a height at which the optical sheet is spaced from the light-emitting unit; and a display panel placed on the upper surface of the optical sheet, wherein the lens has a cutout portion formed therein by depressing a part of the side surface thereof toward the center thereof, thereby providing an anisotropic light distribution.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 28, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyungjoon Lee, Wondo Kee, Jihee Park, Woongjoon Hwang, Juyoung Joung
  • Patent number: 9806242
    Abstract: An optical lens for an LED includes an upper portion defining a light extraction face, a lower portion and an annular flange between the upper and lower portions. The lower portion has a wall section defining a cavity for receiving the LED therein, and a curved lateral side. A lateral light generated by the LED and running against the curved lateral side has at least a part being refracted or reflected thereby to run through the light extraction face of the optical lens.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 31, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Po-Chin Chiu
  • Patent number: 9701240
    Abstract: A unit has at least one light emitting diode (LED), a light-guiding lens in front of the LED, a downwardly inclined transparent window disposed in front of the light guiding lens, and light-shielding coatings disposed on a surface of the transparent window facing the light guiding lens, above and below the front face of the light-guiding lens. The light-guiding lens includes a light incident portion; a first reflecting surface for upwardly reflecting light from an upper half of the light incident portion; second reflecting surfaces for laterally reflecting light from a lower half of the light incident portion; third reflecting surfaces for upwardly reflecting light from the second reflecting surfaces; a fourth reflecting surface for forwardly reflecting the light from the first and third reflecting surfaces; and a light exiting surface for projecting light from the fourth reflecting surface forward.
    Type: Grant
    Filed: June 20, 2015
    Date of Patent: July 11, 2017
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Takuya Matsumaru, Kazuya Marugame
  • Patent number: 9645299
    Abstract: Disclosed are a light unit and a display apparatus including the same. The light unit includes a lens including a flat light incident part having a pattern and a light exit part, a plurality of light emitting devices below the incident part of the lens, and a substrate having the light emitting devices mounted thereon.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 9, 2017
    Assignee: LG Innotek Co., Ltd.
    Inventor: Jun Seok Park
  • Patent number: 9599310
    Abstract: A light guide element and a lamp are provided. The light guide element includes a light-incident surface, a light-emitting surface, an outer surface and an inner surface. The light-incident surface has a first outer peripheral edge and a first inner peripheral edge. The light-emitting surface is opposite to the light-incident surface and has a second outer peripheral edge and a second inner peripheral edge. The outer surface connects the first outer peripheral edge and the second outer peripheral edge. The inner surface connects the first inner peripheral edge and the second inner peripheral edge. A first opening defined by the inner surface adjacent to the first inner peripheral edge is larger than a second opening defined by the inner surface adjacent to the second inner peripheral edge.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: March 21, 2017
    Assignee: Radiant Opto-Electronics Corporation
    Inventors: Wei-Chen Lin, Guo-Hao Huang
  • Patent number: 9534746
    Abstract: Simple yet powerful mathematical solutions are provided for producing a minimally-spreading de-pixelization light spread function with four-fold bilateral symmetry to create a High Dynamic Range LED-LCD display where the point spread functions of each LED regardless of intensity can be designed such that adjacent rows and columns of LEDs within an array blend smoothly and uniformly to create a non-pixelated continuous image in two dimensions on the diffuser screen and with minimal luminance overlap to minimize the computational demands required at video rate of an HDR display. The resulting image has substantially visually perfect uniform luminance, linear luminance and quadratic luminance gradient. Additionally a new display architecture is unveiled and described that emulates the mathematically developed light spread functions mentioned. This new architecture comprises several sub-aspects to tune the display device to the desired design requirements.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: January 3, 2017
    Assignee: A.L. WHITEHEAD LTD.
    Inventor: Lorne A. Whitehead
  • Patent number: 9512972
    Abstract: A light source system comprising projection optics, which are capable of producing a far-field image of a light source. The light source comprises a fluorescent medium that when illuminated by light from laser emitters of a first waveband emits light of a second or more wavebands of longer wavelength. The resulting light emission produces a color perceived as white. The light source is illuminated by a plurality of laser emitters arranged to illuminate the light source in an array-like manner. Control of the output of one or more of the laser emitters results in a variation of the spatial emission distribution from the light source and hence a variation of the far-field beam spot distribution via non-mechanical means.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 6, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: James Rowland Suckling, David James Montgomery, Koji Takahashi
  • Patent number: 9515058
    Abstract: Disclosed are a light emitting device package. The light emitting device package includes a body having recess; a first lead frame including a first and second portions on a first region of the body; a second lead frame including a third and fourth portions on a second region of the body; a third lead frame between the first and second lead frame. The body has a length of the first direction greater than a width of the second direction, wherein the second portion of the first lead frame extends toward the second lead frame and has a small width, and wherein the fourth portion of the second lead frame extends toward the first lead frame. A first light emitting device is disposed on the first portion of the first lead frame and a second light emitting device is disposed on the third portion of the second lead frame.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: December 6, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Dong Yong Lee
  • Patent number: 9360190
    Abstract: The present invention relates to a compact optic lens for a high intensity light source having improved output beam characteristics. The compact optic lens provides increased light output without increasing device cost or device size to enable coverage of many beam angles.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: June 7, 2016
    Assignee: Soraa, Inc.
    Inventors: Frank Tin Chung Shum, Michael Ragan Krames
  • Patent number: 9041017
    Abstract: An organic light-emitting display device includes a first substrate and a second substrate; an organic light-emitting device disposed between the first and second substrates and includes a pixel electrode separately formed in each pixel, a common electrode, and an organic light-emitting layer disposed between the pixel electrode and the common electrode; and an electrode unit and at least one wiring unit that are disposed between the first substrate and the second substrate, the electrode unit including at least one thin-film transistor for transmitting a light-emitting signal to the pixel electrode and at least one capacitor, wherein an optical property modification layer obtained by modifying an optical property of at least one of the electrode unit and the wiring unit is formed on a surface of the at least one of the electrode unit and the wiring unit.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: May 26, 2015
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Len Kaplan, Valeriy Prushinskiy, Se-Ho Cheong, Won-Sik Hyun, Byoung-Seong Jeong, Jang-Seok Ma
  • Patent number: 9041028
    Abstract: Provided are a light emitting device, a method for fabricating the light emitting device, and a light emitting device package. The light emitting device includes a light emitting structure including a first conductive type semiconductor layer, an active layer under the first conductive type semiconductor layer, and a second conductive type semiconductor layer under the active layer, a conductive support member, and a protection member on the light emitting structure. The light emitting structure has a first width and a second width. A difference between the first width and the second width defines a stepped structure or an inclined structure. The protection member is disposed on the stepped or the inclined structure defined by the difference between the first and second widths of the light emitting structure.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 26, 2015
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jung Hyeok Bae, Byung Hak Jeong, Kyung Wook Park, Chung Song Kim
  • Patent number: 9035342
    Abstract: A light-emitting device of the invention includes a base, at least one light-emitting element, a wavelength transferring cover and a heat-conducting structure. The light-emitting element is disposed on the base and electrically connected to the base. The wavelength transferring cover is disposed on the base and covers the light-emitting element. The heat-conducting structure is disposed on the base and directly contacts the wavelength transferring cover.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: May 19, 2015
    Assignee: Genesis Photonics Inc.
    Inventors: Cheng-Yen Chen, Yi-Fan Li, Han-Min Wu, Kuan-Chieh Huang, Tung-Lin Chuang, Sheng-Yuan Sun
  • Patent number: 9035333
    Abstract: A semiconductor light emitting device includes an LED chip, which includes an n-type semiconductor layer, active layer, and p-type semiconductor layer stacked on a substrate. The LED chip further includes an anode electrode connected to the p-type semiconductor, and a cathode connected to the n-type semiconductor. The anode and cathode electrodes face a case with the LED chip mounted thereon. The case includes a base member including front and rear surfaces, and wirings including a front surface layer having anode and cathode pads formed at the front surface, a rear surface layer having anode and cathode mounting electrodes formed at the rear surface, an anode through wiring connecting the anode pad and the anode mounting electrode and passing through a portion of the base member, and a cathode through wirings connecting the cathode pad and the cathode mounting electrode and passing through a portion of the base member.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: May 19, 2015
    Assignee: Rohm Co., Ltd.
    Inventor: Tomoichiro Toyama
  • Patent number: 9029891
    Abstract: There is provided a wiring substrate. The wiring substrate includes: a heat sink; an insulating member on the heat sink; a wiring pattern embedded in the insulating member and including a first surface and a second surface opposite to the first surface, the second surface contacting the insulating member; and a metal layer on the first surface of the wiring pattern, wherein an exposed surface of the metal layer is flush with an exposed surface of the insulating member.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 12, 2015
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Shigetsugu Muramatsu, Hiroshi Shimizu, Kazutaka Kobayashi
  • Patent number: 9029907
    Abstract: An optoelectronic semiconductor component includes a radiation emitting semiconductor chip having a radiation coupling out area. Electromagnetic radiation generated in the semiconductor chip leaves the semiconductor chip via the radiation coupling out area. A converter element is disposed downstream of the semiconductor chip at its radiation coupling out area. The converter element is configured to convert electromagnetic radiation emitted by the semiconductor chip. The converter element has a first surface facing away from the radiation coupling out area. A reflective encapsulation encapsulates the semiconductor chip and portions of the converter element at side areas in a form-fitting manner. The first surface of the converter element is free of the reflective encapsulation.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: May 12, 2015
    Assignee: Osram Opto Semiconductor GmbH
    Inventors: Gertrud Kräuter, Bernd Barchmann, Krister Bergenek, Michael Zitzlsperger, Johann Ramchen
  • Patent number: 9024340
    Abstract: A light emitting apparatus and a production method of the apparatus are provided that can emit light with less color unevenness at high luminance. The apparatus includes a light emitting device, a transparent member receiving incident light emitted from the device, and a covering member. The transparent member is formed of an inorganic material light conversion member including an externally exposed emission surface, and a side surface contiguous to the emission surface. The covering member contains a reflective material, and covers at least the side surfaces of the transparent member. Substantially only the emission surface serves as the emission area of the apparatus. It is possible to provide emitted light having excellent directivity and luminance. Emitted light can be easily optically controlled. In the case where each light emitting apparatus is used as a unit light source, the apparatus has high secondary usability.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: May 5, 2015
    Assignee: Nichia Corporation
    Inventors: Shunsuke Minato, Masahiko Sano
  • Patent number: 9024342
    Abstract: A semiconductor light emitting element includes a semiconductor multilayer structure including a first conductive type layer, a second conductive type layer, and a light emitting layer sandwiched between the first conductive type layer and the second conductive type layer, and a reflecting layer formed on the second conductive type layer for reflecting the light emitted from the light emitting layer. The light is extracted in a direction from the light emitting layer toward the first conductive type layer. The first conductive type layer includes a concavo-convex region on a surface thereof not opposite to the light emitting layer, for changing a path of light, and at least a part of the reflecting layer is formed extending to right above an edge of the concavo-convex region.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: May 5, 2015
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Masao Kamiya, Masashi Deguchi
  • Patent number: 9024350
    Abstract: A light emitting module is disclosed. The light emitting module includes a lead frame body, lead frame, a heat spreader, an intermediate heat sink, and at least one light emitting element (LED). The lead frame body defines a cavity which accurately registers the heat spreader and includes optical or reflective walls surrounding the light emitting elements soldered on metallized traces of the heat spreader. The lead frame body encases and supports portions of the lead frame. The lead frame extends from outside the body into the cavity to accurately align with solder pads of the heat spreader. All the pre-aligned mechanical, thermal and electrical contacts are then soldered by solder reflow process under tight environmental control to prevent damage to the light emitting element. A robust, healthy 3-dimensional optical-electro-mechanical assembly having a very low thermal resistance in a thermal path from its light emitting element to its intermediate heatsink is created.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: May 5, 2015
    Inventor: Ban P Loh
  • Patent number: 9018641
    Abstract: A method for manufacturing a radiation-emitting component (1) in which a field distribution of a near field (101, 201) in a direction perpendicular to a main emission axis of the component is specified. From the field distribution of the near field, an index of refraction profile (111, 211, 511) along this direction is determined. A structure is determined for the component such that the component will have the previously determined index of refraction profile. The component is constructed according to the previously determined structure. A radiation-emitting component is also disclosed.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: April 28, 2015
    Assignee: CSRAM Opto Semiconductors GmbH
    Inventors: Peter Brick, Uwe Strauss