Patents Assigned to Lumileds LLC
  • Thin LED flash for camera
    Patent number: 11003053
    Abstract: A thin flash module for a camera uses a flexible circuit as a support surface. A blue GaN-based flip chip LED die is mounted on the flex circuit. The LED die has a thick transparent substrate forming a “top” exit window so at least 40% of the light emitted from the die is side light. A phosphor layer conformally coats the die and a top surface of the flex circuit. A stamped reflector having a knife edge rectangular opening surrounds the die. Curved surfaces extending from the opening reflect the light from the side surfaces to form a generally rectangular beam. A generally rectangular lens is affixed to the top of the reflector. The lens has a generally rectangular convex surface extending toward the die, wherein a beam of light emitted from the lens has a generally rectangular shape corresponding to an aspect ratio of the camera's field of view.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: May 11, 2021
    Assignee: Lumileds LLC
    Inventor: Mark Melvin Butterworth
  • Lighting device for backlighting of display screen
    Patent number: 11003019
    Abstract: A backlight for a display screen, an electronic device and a method of operating a backlight are described. A backlight includes a light guide, a lead frame, and at least one visible light-emitting diode (LED) and at least one infrared (IR) LED on the lead frame. The backlight includes at least one light entry face and a light exit face. The lead frame includes a first lead and a second lead isolated from each other. The at least one visible LED is optically coupled to one of the at least one light entry face and includes a counter electrode contacted by the first lead and an electrode contacted by the second lead. The at least one IR LED is optically coupled to one of the at least one entry face and includes a counter electrode contacted by the second lead and an electrode contacted by the first lead.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 11, 2021
    Assignee: Lumileds LLC
    Inventor: Rob Jacques Paul Engelen
  • LIGHTING SYSTEM WITH INTEGRATED SENSOR
    Publication number: 20210136890
    Abstract: Techniques and devices are provided for sensing image data from a scene and activating primary light sources based on information sensed from the scene. Subsets of a plurality of primary light sources may be activated to emit sensing spectrum of light onto a scene. Combined image data may be sensed from the scene while the subsets of the plurality of primary light sources are activated. Reflectance information for the scene may be determined based on the combined image data and combined sensing spectra. Spectrum optimization criteria for the primary light sources may be determined based on the reference information and a desired output parameter provided by a user or determined by a controller. The plurality of primary light sources may be activated to emit a lighting spectrum based on the spectrum optimization criteria.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Applicant: LUMILEDS LLC
    Inventors: Wouter SOER, Willem Sillevis-Smitt
  • LED LAMP
    Publication number: 20210131616
    Abstract: An LED lamp includes a lamp base for insertion into a reflector of an automotive front lighting assembly; a panel extending from the lamp base with a first vertical side facing into one half of the reflector and a second vertical side into the other half of the reflector; a primary light source including a set of LED dies on each vertical side of the panel; a two-part shield including a first shield half shielding the LED dies on the first vertical side of the panel and a second shield half shielding the LED dies on the second vertical side of the panel. The two-part shield essentially has the form of a shield in a functionally equivalent filament lamp for providing a low beam. A lighting arrangement includes such an LED lamp; a reflector to receive the lamp; and an electrical interface for connecting to a controller.
    Type: Application
    Filed: March 2, 2018
    Publication date: May 6, 2021
    Applicant: Lumileds LLC
    Inventors: Bernd Schoenfelder, Andreas Timinger, Danijel Labas, Mark Elzinga
  • Arrangement of a TIR body
    Patent number: 10996450
    Abstract: The invention relates to an optical device and to a headlighting assembly including an optical device. An optical device includes a body of a transparent material arranged to receive light at at least one light input portion. At least a portion of the light is reflected at an outer surface of the body due to total internal reflection. A non-transparent housing is provided to at least partially cover the body. The body is held within the housing by protrusions arranged to abut against the outer surface.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: May 4, 2021
    Assignee: LUMILEDS LLC
    Inventors: Juergen Mertens, Astrid Marchewka, Georg Henninger
  • Polarizing edge coupled light in backlight
    Patent number: 10996516
    Abstract: A backlight apparatus can include a light emitting element configured to emit visible light. The backlight apparatus can include a polarizing device including a prism situated to receive the visible light and to polarize the visible light to generate polarized light. The backlight apparatus can include a light guide panel configured to receive the polarized light at an input surface facing the polarizing device and to distribute the polarized light to a major surface of the light guide panel facing a display screen.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventors: Mehdi Aas, Nicola Bettina Pfeffer, Arjen Gerben Van der Sijde, Erno Fancsali
  • Method for applying electronic components
    Patent number: 10999936
    Abstract: A method for applying at least one electronic component to a surface is described. The method includes placing a component stencil on a support. At least one electronic component is arranged in a corresponding opening of the component stencil with a top surface of the electronic component on the support. A contact material stencil is positioned on the component stencil such that at least one opening in the contact material stencil is over a corresponding contact region on the bottom surface of the at least one electronic component. A contact material is applied on the at least one contact region of the at least one electronic component within the corresponding opening of the contact material stencil. The contact material stencil is removed from the component stencil. The component stencil is removed from the support. The at least one electronic component is applied to the surface.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventors: Matthias Epmeier, Petra Wellmeier, Frank Giese, Carsten Weber, Michael Deckers, Georg Henninger
  • Selecting parameters in a color-tuning application
    Patent number: 10999907
    Abstract: Various embodiments include apparatuses enabling a single color-tuning device to select both a correlated color temperature (LED) and a coordinate distance (Duv) to a black body line (BBL) in a color-tuning application. In one embodiment, a color-tuning device is to divide an applied voltage to provide a signal related to parameters selected from at least one of LED and Duv from the BBL. A finite-state machine (LED) is coupled to the color-tuning device to receive the signals therefrom and determine an action to take based on both a current position and a previous position of the color-tuning device. The LED is to be coupled to a light-emitting diode (LED) array. Other apparatuses and devices are disclosed.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventor: Yifeng Qiu
  • Nanostructured meta-materials and meta-surfaces to collimate light emissions from LEDs
    Patent number: 10996451
    Abstract: A system, method and device for collimating the output of a light emitting diode (LED) are disclosed. The system, method and device include an LED substrate including a top surface from which the light is emitted, and an array of subwavelength scattering antennas positioned within the emitted light path, the array of subwavelength scattering antennas configured to select directions of scatter of the LED emitted light to provide collimated light output from the device. The array may be aligned perpendicular to the plane of propagation of the light emitted from the LED and may be positioned adjacent to the top surface. The array may be at least partially, or completely, positioned within the LED substrate. The array may be spaced a distance from the top surface and the spacing may be achieved using a dielectric spacer adjacent to the top surface. The array may be positioned within the dielectric spacer.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventor: Venkata Ananth Tamma
  • Packaged wavelength converted light emitting device
    Patent number: 10998473
    Abstract: Embodiments of the invention include a plurality of light emitting devices, each light emitting device having a top surface, a bottom surface opposite the top surface, and at least one side surface connecting the top surface and the bottom surface. A wavelength converting layer is disposed in direct contact with the top surface and one side surface of each of the plurality of light emitting devices to mechanically connect each of the plurality of light emitting devices together. The wavelength converting layer is made up of a wavelength converting material, an adhesive material, and a transparent material that has a thermal conductivity of at least 0.2 W/mK. The adhesive material and the transparent material have indices of refraction that vary less than ten percent.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventors: Grigoriy Basin, Jing Liu, Joseph Chungchih Juan, R B Syivaram Balakrishnan, Thierry Maurice Francois De Smet
  • LED module and lighting module
    Patent number: 10995915
    Abstract: A LED module is disclosed comprising a LED chip including at least one LED arranged to direct a luminous output centered about an optical axis towards a light exit surface; an optical layer separated from the light exit surface by a spacing region having a lower refractive index than the optical layer and a material comprising the light exit surface, the optical layer being arranged to redirect the luminous output in a direction under a non-zero angle with the optical axis; and a collimating element over the optical layer, the collimating element being arranged to collimate the redirected luminous output in said direction. A lighting module including one or more of such LED modules is also disclosed.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventors: Marc Andre de Samber, Norbertus Antonius Maria Sweegers, Floris Maria Hermansz Crompvoets
  • LED array module
    Patent number: 10998298
    Abstract: A light emitting diode array module includes a plurality of light emitting diode structures. The light emitting diode structures are arranged such that there is an optical cross talk between the light emitting diode structures during operation of the light emitting diode array module. At least a first light emitting diode structure of the plurality of light emitting diode structures is characterized by a first color. At least a second light emitting diode structure of the plurality of light emitting diode structures is characterized by a second color different than the first color. The first color, the second color, and the optical cross talk between the light emitting diodes are arranged to provide a predefined light distribution in a reference plane perpendicular to an optical axis of the light emitting diode array module. A lighting device can include one or more LED array modules.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: May 4, 2021
    Assignee: Lumileds LLC
    Inventors: Rob Jacques Paul Engelen, Frans Hubert Konijn, Charles André Schrama, Emanuel Nicolaas Hermanus Johannes Stassar, Erno Fancsali, Varun Dev Kakkar, Nicola Bettina Pfeffer
  • FLEXIBLE LIGHT STRIP
    Publication number: 20210125969
    Abstract: The invention describes a flexible light strip, an automotive light unit comprising this flexible light strip, an embossing tool and a method to manufacture the light strip, which comprises multiple solid state lighting units as light sources and a flexible carrier for the solid state lighting units attached to the flexible foil, which further comprises a suitable wiring or the carrier is the wiring connecting the solid state lighting units to enable suitable driving of the lighting units to illuminate an environment with the flexible light strip, wherein the carrier comprises multiple buffer areas arranged between adjacent lighting units, where the buffer area extends along a width of the carrier from one edge to the opposite edge of the carrier and being adapted to be able to be compressed and expanded on demand.
    Type: Application
    Filed: September 7, 2018
    Publication date: April 29, 2021
    Applicant: LUMILEDS LLC
    Inventors: Manuel GRAVE, Christian KLEIJNEN, Juergen MERTENS, Ralph Hubert PETERS
  • PIGMENTED AND SCATTERING PARTICLES IN SIDE COATING MATERIALS FOR LED APPLICATIONS
    Publication number: 20210126042
    Abstract: Phosphor-converted LED side reflectors disclosed herein comprise pigments that are photochemically stable under illumination by light from the pcLED. The pigments absorb light in at least a portion of the spectrum of light emitted by the first phosphor converted LED. The side reflector may also comprise light scattering particles or air voids. The pigments, light scattering particles, or air voids may be homogeneously distributed in the reflector. Alternatively the side reflector may be layered, with the pigments, light scattering particles, or air voids inhomogeneously distributed in the reflector. The side reflector can include phosphor particles.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 29, 2021
    Applicant: Lumileds LLC
    Inventors: Grigoriy BASIN, Kentaro SHIMIZU, Brendan MORAN, Emma DOHNER, Noad SHAPIRO, Marcel BOHMER
  • PIGMENTED AND SCATTERING PARTICLES IN SIDE COATING MATERIALS FOR LED APPLICATIONS
    Publication number: 20210126166
    Abstract: Phosphor-converted LED side reflectors disclosed herein comprise pigments that are photochemically stable under illumination by light from the pcLED. The pigments absorb light in at least a portion of the spectrum of light emitted by the first phosphor converted LED. The side reflector may also comprise light scattering particles and/or air voids. The pigments, light scattering particles and/or air voids may be homogeneously distributed in the reflector. Alternatively the side reflector may be layered, with the pigments, light scattering particles and/or air voids inhomogeneously distributed in the reflector. The side reflector may comprise phosphor particles.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 29, 2021
    Applicant: Lumileds LLC
    Inventors: Grigoriy BASIN, Kentaro SHIMIZU, Brendan MORAN, Emma DOHNER, Noad SHAPIRO, Marcel Bohmer
  • Shaping input surfaces of LED light-guides for increased light extraction efficiency
    Patent number: 10989857
    Abstract: A method, apparatus, and system are disclosed for increasing light extraction efficiency in a light guide optical system. The light guide optical system may comprise a light emitting source. The light emitting source may be, for example, a light-emitting diode (LED) or plurality of LEDS. The light guide optical system may also comprise a light guide plate (LGP). The LGP may include light extraction features located on surfaces of the LGP. The LGP may also include a shaped injection surface on an input surface of the LGP. The shaped injection surface may be angled to deviate near-parallel light emitted from the LED to enable the near-parallel light emitted from the LED to be extracted from the LGP via the light extraction features. The shaped injection surface may be a split edge (i.e., a V-groove) or a curved edge.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 27, 2021
    Assignee: Lumileds LLC
    Inventors: Frederic Stephane Diana, Jeroen Den Breejen, Gregory Donald Guth
  • Light guide with patterned ink
    Patent number: 10991860
    Abstract: A light-emitting device comprising: a light source; and a light guide that is optically coupled to the light source, the light guide including a plurality of first non-fluorescent light extraction elements and a plurality of second non-fluorescent light extraction elements that are printed on the light guide, each of the first light extraction elements having a reflectance that is higher than a reflectance of any of the second light extraction elements, each of the first light extraction elements having a light transmittance that is lower than a light transmittance of any the second light extraction elements, each of the first light extraction elements having the same shape and size as any other one of the plurality first light extraction elements, and each of the second light extraction elements having the same shape and size as any other one of the plurality of second light extraction elements.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: April 27, 2021
    Assignee: Lumileds LLC
    Inventors: Jeroen Den Breejen, Xin Zhang, Frederic Stephane Diana
  • Optical module with LED emitting amber-colored light
    Patent number: D919128
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 11, 2021
    Assignee: LUMILEDS LLC
    Inventors: Charles André Schrama, Mehdi Aas
  • Optical module with LED emitting red-colored light
    Patent number: D919129
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 11, 2021
    Assignee: LUMILEDS LLC
    Inventors: Charles André Schrama, Mehdi Aas
  • Optical module with LED emitting white-colored light
    Patent number: D919130
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 11, 2021
    Assignee: LUMILEDS LLC
    Inventors: Charles André Schrama, Mehdi Aas