Light Source Or Light Source Support And Luminescent Material Patents (Class 362/84)
  • Patent number: 11560514
    Abstract: Provided is a method for producing a ?-sialon fluorescent material, comprising preparing a composition containing a silicon nitride that contains aluminium, oxygen, and europium; heat-treating the composition at a temperature in a range of 1300° C. or more and 1600° C. or less to obtain a heat-treated product; subjecting the heat-treated product to a temperature-decrease of from the heat treatment temperature to 1000° C. as a first temperature-decrease step; and subjecting the heat-treated product to a temperature-decrease of from 1000° C. to 400° C. as a second temperature-decrease step. The first temperature-decrease step has a temperature-decrease rate in a range of 1.5° C./min or more and 200° C./min or less, and the second temperature-decrease step has a temperature-decrease rate in a range of 1° C./min or more and 200° C./min or less.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: January 24, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Motoharu Morikawa, Shoji Hosokawa
  • Patent number: 11556051
    Abstract: An illuminator includes a light emitting apparatus which outputs first light belonging to a first wavelength band, a wavelength converter which converts part of the first light into second light belonging to a second wavelength band and causes the second and remainder of the first light to exit, a first optical system with positive power and which the first light enters, an optical element which the remaining first light enters and which reflects either the first or second light and transmits the other, a second optical system with positive power and which the first from the optical element and second light from the converter enter, a third optical system with positive power and causes the first light from the second optical system to enter the converter, and a fourth optical system with positive power and which the second light from the second optical system enters.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: January 17, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Akiyama
  • Patent number: 11552228
    Abstract: An optoelectronic component and a method for producing an optoelectronic component are disclosed. In an embodiment an optoelectronic component includes a semiconductor chip including a plurality of pixels, each pixel configured to emit electromagnetic primary radiation from a radiation exit surface and conversion layers located on at least a part of the radiation exit surfaces, wherein the conversion layers comprise a crosslinked matrix having a three-dimensional siloxane-based network and at least one phosphor embedded in the matrix, and wherein the conversion layers have a thickness of ?30 ?m.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: January 10, 2023
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Alan Piquette, Maxim N. Tchoul, Darshan Kundaliya, Adam Scotch, Gertrud Kräuter
  • Patent number: 11543649
    Abstract: A wavelength conversion device includes a substrate, a reflective layer, a phosphor layer and a thermal conductive layer. The substrate has a surface. The reflective layer is disposed on the surface of the substrate. The phosphor layer is disposed on the reflective layer and has a conversion region configured to perform a wavelength conversion. The thermal conductive layer is disposed on the surface of the substrate and thermally directly connected to the conversion region for conducting a heat generated at the conversion region during the wavelength conversion. The thermal resistance of the reflective layer is high and causes heat in the conversion region to accumulate. By disposing the thermal conductive layer adjacent to a side of the phosphor layer, the thermal conductive layer is thermally directly connected to the conversion region, so that the heat generated at the conversion region during the wavelength conversion is efficiently dissipated.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: January 3, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Jih-Chi Li
  • Patent number: 11543083
    Abstract: An LED filament and an LED light bulb applying the same are provided. The LED filament includes a at least one LED section, wherein the at least one LED section comprises at least two LED chips electrically connected to each other through a first wire, and at least two conductive electrodes, wherein each of the at least two conductive electrodes is electrically connected to corresponding one of the at least one LED section; and a light conversion layer, covering the at least one LED section and a portion of each of the at least two conductive electrodes, a portion of the first wire is exposed outside the light conversion layer.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: January 3, 2023
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Zhichao Zhang, Yukihiro Saito, Hayato Unagiike
  • Patent number: 11530798
    Abstract: The purpose is to provide a wavelength conversion member, a method for manufacturing the wavelength conversion member, and a light-emitting device, which are capable of reducing the temperature rise of the wavelength conversion member and thus reducing the decrease in luminescence intensity with time and deformation and discoloration of constituent materials. A wavelength conversion member 10 includes a matrix 1 and phosphor particles 3 dispersed in the matrix 1, wherein the matrix 1 is formed of a porous oxide body 2 having an average pore diameter of 50 ?m or less.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: December 20, 2022
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Shotaro Fukumoto, Shunsuke Fujita
  • Patent number: 11519562
    Abstract: A light emitting diode, LED, filament arrangement (100), comprising at least one LED filament (120) comprising an array of a plurality of light emitting diodes (140), LEDs. The LED filament comprises a substrate (150) on which the plurality of LEDs is arranged. The substrate surface comprises at least one of a multi-faceted surface structure (160), a lens structure (161), and a grating structure (162) and is configured to at least partially refract, at least partially reflect, and/or at least partially diffract the light emitted from the at least one LED filament during operation.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: December 6, 2022
    Assignee: Signify Holding B.V.
    Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet, Johannes Petrus Maria Ansems
  • Patent number: 11520180
    Abstract: The present invention provides a quantum dot material structure, a liquid crystal display device, and an electronic device. The quantum dot material structure is applied in the liquid crystal display device. The quantum dot material structure includes a quantum dot core, a quantum dot shell, and a quantum dot ligand layer in order from an inside to an outside. The quantum dot core comprises a cadmium arsenide magic-size, and the quantum dot core is used to absorb green light of a predetermined wavelength. The quantum dot shell is used to protect the quantum dot core. The quantum dot ligand layer is used to promote a structural dispersion of the quantum dot material.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: December 6, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Miao Zhou
  • Patent number: 11511661
    Abstract: A vehicular apparatus includes: a housing that is configured to be attached to a vehicle; and a first light source and a second light source that are provided in the housing to emit light having main wavelengths in mutually different wavelength ranges. The first light source emits light having a main wavelength in 490 nm-498 nm while the vehicle is being automatically driven.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: November 29, 2022
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Ken Watanabe, Susumu Kaneko
  • Patent number: 11506965
    Abstract: An illumination system providing an illumination light beam is provided. The excitation light beam passes beside a central region from a first side of the wavelength conversion wheel and then exits from a second side and is transmitted to the first mirror. The first mirror reflects the excitation light beam to the central region on the second side. A non-conversion reflection region of the wavelength conversion wheel reflects the excitation light beam, or a wavelength conversion reflection region of the wavelength conversion wheel converts the excitation light beam into a converted light beam and reflects the converted light beam. The excitation light beam or the converted light beam that is reflected is transmitted to the light homogenizing element. The light homogenizing element homogenizes the excitation light beam and the converted light beam to form the illumination light beam. A projection device is proposed, too.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: November 22, 2022
    Assignee: Coretronic Corporation
    Inventor: Pei-Chun Tsai
  • Patent number: 11493838
    Abstract: An optical device includes a phosphor wheel and two light sources. The phosphor wheel has two phosphor regions. The phosphor regions are located at different radial positions of the phosphor wheel and are not overlapped. Each of the phosphor regions has a plurality of color sections. The light sources emit two light beams so as to respectively provide two light spots on the phosphor wheel. During the rotation of the phosphor wheel, the light spots are located at the color sections having the same fluorescent characteristic respectively in the phosphor regions.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 8, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Ming-Yo Hsu
  • Patent number: 11482646
    Abstract: Glare and/or multiple shadows are reduced and/or prevented in an SMD-type lighting fixture using high-power CSP devices. A lighting apparatus includes: a substrate having a plurality of conduction parts; and a plurality of surface mount-type LED elements mounted so as to be connected to the respective plurality of conduction parts which the substrate has, the individual elements being separately sealed, wherein the substrate includes a fluorescent substance layer containing a first fluorescent substance, the layer covering at least part of a surface on a side where the plurality of surface mount-type LED elements are mounted, the first fluorescent substance is excited at a wavelength of emitted light from at least one of the plurality of surface mount-type LED elements, and the plurality of surface mount-type LED elements are not integrally sealed.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: October 25, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventor: Masahiro Konishi
  • Patent number: 11471545
    Abstract: A lighting apparatus for bacterial, fungal and viral disinfection is provided comprising: at least one first element that emits light comprising a peak emission wavelength between at least about 411 nm to up to 419 nm; and at least one second element that outputs and/or converts at least a portion of the light emitted by the first element.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: October 18, 2022
    Assignee: LUXVICI LTD
    Inventor: Simon Balme
  • Patent number: 11448369
    Abstract: A light emitting device (1) having a longitudinal axis (A) comprising at least one LED light source (8, 9) adapted for, in operation, emitting first light, at least one LED filament (4, 5, 6, 7) adapted for, in operation, emitting second light, at least one translucent core element (2), the translucent core element comprising a circumferential wall (3), an inner space (21) enclosed by the circumferential wall, and an outer bulb (13) enclosing the at least one translucent core element (2) and the at least one LED filament (4, 5, 6, 7), wherein the at least one LED light source (8, 9) being arranged in the inner space enclosed by the circumferential wall of the translucent core element, and the at least one LED filament (4, 5, 6, 7) being arranged outside of the at least one translucent core element, and wherein the at least one translucent core element (2) is centrally arranged on the longitudinal axis (A).
    Type: Grant
    Filed: December 20, 2020
    Date of Patent: September 20, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet
  • Patent number: 11444223
    Abstract: A light emitting device including at least one first light emitting unit including an ultraviolet or violet light emitting diode chip and a first wavelength converter, at least one second light emitting unit including an ultraviolet or violet light emitting diode chip and a second wavelength converter, and at least one third light emitting unit including an ultraviolet or violet light emitting diode chip and a third wavelength converter, in which color coordinates of the first light emitting unit, the second light emitting unit, and the third light emitting unit define a triangular region in a CIE-1931 coordinate system, the triangular region including at least a portion of the Plankian locus, and a maximum color temperature of the Plankian locus included in the triangular region is 5000K or higher, and a minimum color temperature of the Plankian locus included in the triangular region is 3000K or lower.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: September 13, 2022
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Bo Yong Han
  • Patent number: 11430922
    Abstract: An optoelectronic component and a method for producing an optoelectronic component are disclosed. In an embodiment an optoelectronic component includes a semiconductor layer sequence having an active region configured to emit radiation at least via a main radiation exit surface during operation and a self-supporting conversion element arranged in a beam path of the semiconductor layer sequence, wherein the self-supporting conversion element includes a substrate and subsequently a first layer, wherein the first layer includes at least one conversion material embedded in a matrix material, wherein the matrix material includes at least one condensed sol-gel material, wherein the condensed sol-gel material has a proportion between 10 and 70 vol % in the first layer, and wherein the substrate is free of the sol-gel material and the conversion material and mechanically stabilizes the first layer.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 30, 2022
    Assignee: OSKAM OLED GMBH
    Inventors: Jörg Frischeisen, Angela Eberhardt, Florian Peskoller, Thomas Huckenbeck, Michael Schmidberger, Jürgen Bauer, Dominik Eisert, Albert Schneider
  • Patent number: 11424391
    Abstract: A wavelength-converting element includes a substrate, a wavelength-converting layer and a diffuse reflection layer. The wavelength-converting layer is disposed above the substrate. The diffuse reflection layer is disposed between the substrate and the wavelength-converting layer. The diffuse reflection layer includes an inorganic binder and a plurality of diffuse reflection particles. The diffuse reflection particles are mixed with the inorganic binder. The inorganic binder includes an alcohol-soluble inorganic binder or a water-soluble inorganic binder. A projection apparatus using the wavelength-converting element and a manufacturing method of the wavelength-converting element are also provided.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 23, 2022
    Assignee: Coretronic Corporation
    Inventor: I-Hua Chen
  • Patent number: 11402736
    Abstract: A light source system includes an excitation light source configured to generate an excitation light; a wavelength conversion device including a conversion region and a non-conversion region, wherein the conversion region is configured to perform a wavelength conversion on the excitation light and first light along a first optical path, the non-conversion region is configured to scatter the excitation light and emit second light along a second optical path, and the conversion region is further configured to emit unconverted excitation light as third light along a third optical path; an adjustment device configured to guide and adjust the first light, the second light and the third light to be emitted in a first divergence angle, a second divergence angle, and a third divergence angle, respectively; and a first reflective element configured to guide the second light and a portion of the third light to enter the adjustment device.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 2, 2022
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Zuqiang Guo, Peng Du, Yi Li
  • Patent number: 11395858
    Abstract: Disclosed herein is a multiple light emitter device which inactivates microorganisms. The device includes at least two light emitters and at least one light-converting material arranged to convert at least a portion of light from the light emitters. Any unconverted light emitted from the light emitters and converted light emitted from the at least one light-converting material mixes to form a combined light, the combined light being white. In one aspect, the light emitters include at least one blue light emitter and at least one violet light emitter. In another aspect, the light emitters include one blue light emitter and one emitter within the range of approximately yellow to infrared light.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: July 26, 2022
    Assignee: Vyv, Inc.
    Inventors: Robert Barron, Cori Winslow, Nicholas Jones
  • Patent number: 11396990
    Abstract: A phosphor module for a laser light source includes a radiating body, a phosphor layer disposed at the radiating body, the phosphor layer being configured to absorb light having a first wavelength and emit light having a second wavelength different from the first wavelength, a reflective layer that surrounds a side surface of the phosphor layer and is configured to reflect light, and a black matrix layer disposed at the reflective layer and configured to absorb light. The black matrix layer is disposed at an edge of the phosphor layer.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: July 26, 2022
    Assignee: LG Electronics Inc.
    Inventors: Jongmoo Lee, Eunyoung Kim, Mongkwon Jung, Byungwoo Jeoung
  • Patent number: 11384920
    Abstract: An illumination device includes a housing including an opening portion, a wavelength converting component which is disposed inside the housing and radiates wavelength-converted light having a different wavelength from that of a laser beam after the laser beam enters the component, an optical film which covers the opening portion and has optical properties such that the transmittance for the wavelength-converted light is 80% or more and the transmittance for the laser beam at the peak wavelength is 80% or less of the transmittance for the wavelength-converted light at the peak wavelength, and a light diffusing structure which is disposed on at least part of the inner wall of the housing and diffusely reflects the laser beam reflected at least by the optical film.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: July 12, 2022
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuya Okuno, Kazuyuki Yamae
  • Patent number: 11387435
    Abstract: The present disclosure is related to a display panel. The display panel may include an emission layer, a colored layer opposite the emission layer, and a grating between the emission layer and the colored layer. The colored layer may include a plurality of color filters and a plurality of black matrixes among the plurality of color filters. Orthographic projection of the grating on the colored layer may fall within orthographic projection of one of the plurality of black matrixes on the colored layer.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: July 12, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Han, Jianye Zhang, Wei Li, Wei Liu, Xing Zhang, Ning Li
  • Patent number: 11387390
    Abstract: A method for producing a wavelength converting member that emits light under irradiation of excitation light, and a wavelength converting member. The method for producing a wavelength converting member, including: providing a green body prepared by a process comprising molding a mixed powder containing a Ca-?-SiAlON fluorescent material and alumina, and depending on necessity an YAG fluorescent material; and primarily sintering the green body at a temperature in a range of 1,000° C. or more and 1,600° C. or less to obtain a first sintered body.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: July 12, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Tomoya Fukui, Tadayoshi Yanagihara
  • Patent number: 11378250
    Abstract: A body (10) is disclosed for obscuring a light source arrangement (3). The body comprises a surface (20) including a plurality of optically reflective relief structures (30, 30?, 30?), each relief structure comprising a first portion (31) and a second portion (33) adjacent to said first portion extending from said surface, wherein the first portion has a different optical reflectivity to the second portion and neighboring optically reflective relief structures are separated by an optically transparent medium contacting said neighboring optically reflective relief structures. Also disclosed is a luminaire comprising such a body and a method of manufacturing such a body.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: July 5, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Rifat Ata Mustafa Hikmet, Paulus Albertus Van Hal
  • Patent number: 11377594
    Abstract: A ?-type sialon phosphor represented by the following expression 1, in which D50 is 10 ?m or less, and values of D10, D50, and D90 satisfy a relationship of the following expression 2 with respect to D10, D50, and D90 (each unit is [?m]) on a volume frequency basis as measured according to a laser diffraction/scattering method. Expression 1: Si12-aAlaObN16-b:Eux (wherein 0<a?3; 0<b?3; 0<x?0.1), expression 2: (D90?D10)/D50<1.6 (wherein the D10, D50, and D90 (each unit is [?m]) on a volume frequency basis as measured according to the laser diffraction/scattering method.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: July 5, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Keita Kobayashi, Shunsuke Mitani, Ryousuke Kondo, Kazuya Sugita, Takuya Matsufuji, Akihisa Kajiyama
  • Patent number: 11378876
    Abstract: A light source device, including: an excitation light source; a supplementary light source; and a color wheel, the excitation light source emits first color light to the color wheel, the color wheel includes a first light-emitting region and a wavelength conversion region sequentially arranged along circumferential direction, and a supplementary light-emitting region located on inner or outer side of the wavelength conversion region, the first light-emitting region receives the first color light in a first time period and emit it, the wavelength conversion region receives the first color light in a second time period and emit excited light, and the supplementary light source emits, during the second time period, a supplementary light that broadens a color gamut and at least partially overlaps with a spectrum of the excited light, and the supplementary light from the supplementary light-emitting region is combined with the excited light from the wavelength conversion region.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: July 5, 2022
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Zuqiang Guo, Ning Lu, Yi Li
  • Patent number: 11369286
    Abstract: A lighting device, comprises a light source configured to provide a low Cyanosis Observation Index (COI) white light having a total flux, the light source comprising a first group of LEDs configured to provide a wide blue light, a second group of LEDs configured to provide a wide green light, and a third group of LEDs configured to provide a wide red light, wherein the low COI white light is a combination of at least the wide blue light, the wide green light, and the wide red light, wherein a current provided to the light source is distributed among the first group of LEDs, the second group of LEDs, and the third group of LEDs such that the wide blue light contributes 7 percent to 9 percent of the total flux, the wide green light contributes 62 percent to 76 percent of the total flux, and the wide red light contributes 20 percent to 26 percent of the total flux, and wherein a COI of the low COI white light is less than 1.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: June 28, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Raymond George Janik, Russell Scott Trask
  • Patent number: 11346507
    Abstract: An LED lamp, comprising a base; a lamp envelope coupled to the base; a support module accommodated in the lamp envelope, a first inner cavity being formed between the support module and the lamp envelope, the first inner cavity containing therein a first gas medium; a driver module accommodated in the first inner cavity and coupled to the support module; and an LED inner vessel accommodated in the first inner cavity and coupled to at least one of the support module and the driver module, a sealed second inner cavity being formed within the LED inner vessel, and the second inner cavity containing therein a second gas medium and an LED light source module.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: May 31, 2022
    Assignee: Savant Technologies LLC
    Inventors: Xiaojun Ren, Kun Xiao, Yimin Zhu, Zhifeng Bao
  • Patent number: 11339583
    Abstract: A door handle is configured for mounting to a door, and includes a shell having a front side and a rear side, with the shell defining an internal chamber. A shank extends from the rear side of the shell, and a light source is seated in the internal chamber. A window pattern is positioned on the rear side of the shell such that the light source is operable to project onto the door a light pattern corresponding to the window pattern.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: May 24, 2022
    Assignee: Schlage Lock Company LLC
    Inventors: Aida K. N. Watson, Madeline Ryals, Nicholas Upton, Chris R. Snider, Parth Kashikar
  • Patent number: 11335835
    Abstract: An optical isolation material may be applied to walls of a first cavity and a second cavity in a wafer mesh. A wavelength converting layer may be deposited into the first cavity to create a first segment and into the second cavity to create a second segment. The first segment may be attached to a first light emitting device to create a first pixel and the second segment to a second light emitting device to create a second pixel. The wafer mesh may be removed.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 17, 2022
    Assignee: Lumileds LLC
    Inventors: Danielle Russell Chamberlin, Erik Maria Roeling, Sumit Gangwal, Niek Van Leth, Oleg Borisovich Shchekin
  • Patent number: 11335837
    Abstract: A light emitting diode package includes an upper housing and a lower housing. The upper housing includes a first light emitting diode (LED) chip arranged therein, a second LED chip arranged to be spaced apart from the first LED chip in a first direction, two light discharge structures, first electrodes formed on a lower surface of the first LED chip, and second electrodes formed on a lower surface of the second LED chip. The lower housing includes at least three grooves at a lower surface thereof. The lower housing further includes three or more pads. The first pair of via-holes are arranged to connect the first electrodes to one or more of the pads in a second direction perpendicular to the first direction. The second pair of via-holes are arranged to connect the second electrodes to one or more of the pads in the second direction.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: May 17, 2022
    Assignee: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Seung Ri Choi, Hyuck Jun Kim, Se Min Bang, Do Choul Woo, Se Won Tae
  • Patent number: 11306899
    Abstract: A light source system includes an exciting light source, a collection system, a wavelength conversion device, a relay system, an optical-mechanical system, a detection device, and a distance adjustment device. The exciting light source emits exciting light. The conversion region converts the exciting light into excited light. Optical axes of the excited light and the exciting light that are emitted from the wavelength conversion device do not coincide with each other. The excited light and exciting light collected by the collection system are guided to the optical-mechanical system via the relay system. The detection device detects information on brightness and/or color coordinates of the light emitted from the optical-mechanical system. The distance adjustment device adjusts a distance between the collection system and the wavelength conversion device in such a manner that the brightness and/or color coordinates of the light emitted from the optical-mechanical system meet a preset condition.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: April 19, 2022
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Zuqiang Guo, Peng Du, Yi Li
  • Patent number: 11302750
    Abstract: A pixel structure and an Organic Light-Emitting Diode (OLED) display panel. The pixel structure includes a number of pixel groups. Each of the pixel groups includes a first pixel and a second pixel adjacent in a first direction and disposed in a staggered manner in a second direction perpendicular to the first direction. Each of the first pixel and the second pixel includes sub-pixels of three different colors arranged along the second direction. A distance between two sub-pixels of a same color respectively of the first pixel and the second pixel in the first direction is equal to that in the second direction.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: April 12, 2022
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Dandan Feng, Xiujian Zhu, Xiaoxu Hu
  • Patent number: 11300788
    Abstract: Systems, devices, and methods for optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically sealed, encapsulated package. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: April 12, 2022
    Assignee: Google LLC
    Inventors: Jörg Pierer, Rony Jose James, Stefan Mohrdiek, Douglas Raymond Dykaar
  • Patent number: 11294238
    Abstract: A low blue light backlight module configured to emit a white light is provided. The low blue light backlight module includes a first light-emitting element, a second light-emitting element, a third light-emitting element and a fourth light-emitting element. The first light-emitting element is configured to emit a first light having a peak emission wavelength of about 610-660 nm. The second light-emitting element is configured to emit a second light having a peak emission wavelength of about 520-550 nm. The third light-emitting element is configured to emit a third light having a peak emission wavelength of about 480-580 nm. The fourth light-emitting element is configured to emit a fourth light having a peak emission wavelength of about 445-470 nm. The white light has an emission spectrum, and an area ratio of the spectrum under wavelength of 415-455 nm to the spectrum under wavelength of 400-500 nm is below 50%.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: April 5, 2022
    Assignee: Lextar Electronics Corporation
    Inventors: Kiet Tuong Ly, Fu-Hsin Chen, Yi-Ting Tsai, Hung-Chia Wang, Chia-Chun Hsieh, Hung-Chun Tong, Yu-Chun Lee, Tzong-Liang Tsai
  • Patent number: 11287735
    Abstract: A diffusion rotating device disposed on a transmission path of a light beam is provided. The diffusion rotating device includes a substrate, a rotating axis and a driving element. The rotating axis is connected to the substrate. The driving element is connected to the rotating axis, and drives the rotating axis to rotate. The substrate includes a first diffusion region and an optical region disposed adjacent to each other, and the first diffusion region has multiple first diffusion sub-regions, each of the first diffusion sub-regions extends along a circumferential direction of the substrate and the first diffusion sub-regions are arranged concentrically along a radial direction of the substrate, when the first diffusion region is cut into the transmission path of the light beam, the light beam forms a first light spot on the first diffusion region of the substrate. A projection device is also provided.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: March 29, 2022
    Assignee: Coretronic Corporation
    Inventors: Shi-Hao Lin, Chung-Cheng Hsu
  • Patent number: 11279871
    Abstract: A ceramic composite according to the present disclosure has a phosphor phase containing an activator and a phosphor and a matrix phase containing MgO as a light transmissive ceramic material. The ceramic composite is made of an inorganic material, and the content of the phosphor phase is so set that the volume ratio of the phosphor phase to the entire phase including the matrix phase and the phosphor phase is lower than or equal to 20 vol %.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: March 22, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Satoshi Kito, Osamu Arakawa
  • Patent number: 11280477
    Abstract: A light source device of the present disclosure includes a sapphire plate having a first surface and a second surface facing each other, a wavelength conversion material located opposite the first surface of the sapphire plate, and a first excitation light source emitting a first excitation light having directivity to the wavelength conversion material through the second surface, in which an angle between the first surface and the second surface, and a c-axis of sapphire is greater than 80°, and an angle between the c-axis and an optical axis of the first excitation light is 20° or more. A lighting device of the present disclosure includes the light source device and a light guide member.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 22, 2022
    Assignee: KYOCERA Corporation
    Inventors: Yoshinori Kubo, Kazuyoshi Fujimoto
  • Patent number: 11275298
    Abstract: A light source unit includes a first device emitting light in a first wavelength range, a luminescent wheel comprising a luminescent light emitting area emitting luminescent light as light in a second wavelength range, a second device emitting light in a third wavelength range distributed on a longer wavelength side than the light in the second wavelength range, a device combining the light in the second and third wavelength ranges to the same light axis, a color wheel comprising a plurality of areas, one of them constituting an area for selecting the light in the third wavelength range and partial light on a long wavelength side of the light in the second wavelength range combined by the combining device as light in a fourth wavelength range, and a control unit controlling the elements described above to time-sharing control the light in the second and fourth wavelength ranges.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 15, 2022
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Chihaya Sugiyama
  • Patent number: 11267762
    Abstract: A preparation method for a ceramic composite material, a ceramic composite material, and a wavelength converter. The preparation method comprises: preparing an aluminium salt solution and a fluorescent powder; dispersing the fluorescent powder into a buffer solution having a pH 4.5-5.5 to obtain a suspension; titrating the suspension with the aluminium salt solution to obtain a fluorescent powder coated with Al2O3 hydrate film; calcining the fluorescent powder coated with Al2O3 hydrate film to obtain a Al2O3-coated fluorescent powder; mixing aluminium oxide powder with a particle size of 0.1 ?m-1 ?m and aluminium oxide powder with a particle size of 1 ?m-10 ?m to obtain mixed aluminium oxide powder; mixing the Al2O3-coated fluorescent powder and the mixed aluminium oxide powder to obtain mixed powder, the Al2O3-coated fluorescent powder being present in 40%-90% by weight of the mixed powder; and pre-pressing and sintering the mixed powder to obtain the ceramic composite material.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: March 8, 2022
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Qian Li, Yanzheng Xu
  • Patent number: 11269245
    Abstract: A light source unit according to an embodiment of the present disclosure includes: a light source section; and a wavelength conversion element that is excited by exciting light from the light source section to emit fluorescent light. The wavelength conversion element includes a substrate that is rotatable around a rotation axis, a phosphor layer including a plurality of phosphor particles, and a quantum-dot layer including a plurality of quantum dots. The phosphor layer and the quantum-dot layer are disposed in this order relative to the light source section.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: March 8, 2022
    Assignee: Sony Corporation
    Inventors: Izushi Kobayashi, Mariko Obinata, Yuki Maeda
  • Patent number: 11271362
    Abstract: The laser device includes a substrate, a laser element disposed on the substrate for emitting a laser light ray, a light guide member disposed on the substrate, and a wavelength conversion layer. The light guide member is light-transmissible and thermally conductive, and has at least one reflection surface for reflecting the laser light ray from the laser element so as to change travelling direction of the laser light ray. The wavelength conversion layer converts wavelength of the laser light ray from the light guide member to result in a laser beam, and contacts the light guide member so that heat from the wavelength conversion layer is transferred to the substrate through the light guide member.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: March 8, 2022
    Assignee: XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hui Chen, Junpeng Shi, Xinglong Li, Chi-Wei Liao, Weng-Tack Wong, Chih-Wei Chao, Chen-ke Hsu
  • Patent number: 11268019
    Abstract: The present invention provides a color conversion sheet comprising: a first wavelength conversion layer in which an organic phosphor is dispersed in a resin matrix; and an adhesive layer disposed on one surface of the first wavelength conversion layer, in which a surface energy of the first wavelength conversion layer is different from a surface energy of the adhesive layer so that the organic phosphor does not diffuse into the adhesive layer.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: March 8, 2022
    Assignee: TORAY ADVANCED MATERIALS KOREA INC.
    Inventors: Sang Woo Jin, Jun Woo Park, Jin Woo Kwon, Ju Hee Choi, Ji Hoon Lee
  • Patent number: 11264544
    Abstract: A wavelength conversion part includes: a wavelength conversion member formed primarily of a ceramic material, wherein the wavelength conversion member has a lower face and one or more lateral faces; an enclosing member formed primarily of a ceramic material, wherein the enclosing member has a lower face, and wherein the enclosing member surrounds the one or more lateral faces of the wavelength conversion member; and a heat dissipating member having a upper face, wherein the heat dissipating member is fixed to the wavelength conversion member, and wherein the upper face of the heat dissipating member opposes the lower face of the wavelength conversion member and the lower face of the enclosing member. The lower face of the wavelength conversion member projects towards the heat dissipating member beyond the lower face of the enclosing member.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: March 1, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Toshiaki Yamashita, Akinori Hara
  • Patent number: 11257988
    Abstract: The application relates to an LED module, an LED holder, and a method for manufacturing the LED holder. The LED holder includes an insulating carrier and a lead frame. The insulating carrier includes a first sidewall, a second sidewall opposite to the first sidewall, and a partition portion positioned between the first sidewall and the second sidewall. The lead frame includes a first electrode and a second electrode positioned at two sides of the partition portion respectively. The first electrode includes a first bottom portion and a first wing portion obliquely connected with the first bottom portion. The second electrode includes a second bottom portion and a second wing portion obliquely connected with the second bottom portion. The LED holder can improve the reflectivity of the insulating carrier and can prevent the insulating carrier from aging.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 22, 2022
    Assignee: KAISTAR LIGHTING (XIAMEN) CO., LTD.
    Inventor: Jing Chen
  • Patent number: 11257991
    Abstract: A light emitting device includes a first LED chip to emit a light having a peak wavelength in a range of 410 to 430 nm, a second LED chip to emit a light having a peak wavelength in a range of 440 to 460 nm, a first quantum dot to convert light emitted by the first and second LED chips into light having a peak wavelength in a range of 510 to 550 nm, and a second quantum dot to convert light emitted by the first and second LED chips into light having a peak wavelength in a range of 610 to 660 nm, wherein, in an emission spectrum of final light, intensity of a peak wavelength of the first LED chip is 15% or less of intensity of a peak wavelength of the second LED chip.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: February 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungwoo Choi, Seongmin Kim, Inhyung Lee
  • Patent number: 11257986
    Abstract: Embodiments include a device having a component with a component surface; a phosphor converter body with a phosphor converter body surface facing the component surface; a plurality of particles between and in contact with the component surface and the phosphor converter body surface; and an inorganic coating on and in contact with at least a portion of the particles, at least a portion of the component surface, and at least a portion of the phosphor converter body surface, and a method making such device.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: February 22, 2022
    Assignee: Lumileds LLC
    Inventors: Jens Meyer, Hans-Helmut Bechtel, Matthias Heidemann
  • Patent number: 11253721
    Abstract: A lighting apparatus including a white light emitting device including at least one first light emitting diode and a wavelength converter, and at least one second light emitting diode emitting light suitable for producing a cell activating substance, in which the first light emitting diode emits light having a central wavelength in a range of about 300 nm to about 420 nm, the second light emitting diode emits light having a central wavelength in a range of about 605 nm to about 935 nm, the wavelength converter includes wavelength conversion substances to convert light of the first light emitting diode into white light, and, in irradiance spectrum of the white light implemented in the white light emitting device, an irradiance at the central wavelength of light emitted from the first light emitting diode is less than that at a peak wavelength of blue light emitted from the wavelength conversion substance.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: February 22, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Hee Ho Bae, A Young Lee, Yeong Min Yoon
  • Patent number: 11253618
    Abstract: A lighting apparatus includes a white light emitting device including a first light emitting diode and a wavelength converter including wavelength conversion substances to convert light of the first light emitting diode, and a second light emitting diode emitting light suitable for sterilizing at least one pathogenic microorganism, in which the first and second light emitting diodes emit light having a central wavelength in a range of about 300 nm to about 420 nm, and in a range of about 400 nm to about 420 nm, respectively, the lighting apparatus emits light generated in the white light emitting device and the second light emitting diode to the outside, and, in irradiance spectrum of the white light, an irradiance at the central wavelength of light emitted from the first light emitting diode is less than that at a peak wavelength of blue light emitted from a blue wavelength conversion substance.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: February 22, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Hee Ho Bae, A Young Lee, Yeong Min Yoon
  • Patent number: 11249227
    Abstract: A wavelength converting element according to the present disclosure includes: a wavelength converting body including an incident surface and an exit surface and configured to perform wavelength conversion on a primary light in a first wavelength band, entered from the incident surface, thereby generating a secondary light in a second wavelength band, which differs from the first wavelength band, the wavelength converting body emitting the secondary light from the exit surface; a metallic antenna group provided in a close vicinity of the wavelength converting body and including a plurality of metallic antennas disposed so as to be spaced apart from each other at a distance of substantially an optical wavelength of the secondary light in the wavelength converting body; and a dielectric antenna group including a plurality of dielectric antennas and provided so as to face the exit surface of the wavelength converting body.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: February 15, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hayato Matsuki