Patents by Inventor Erno Fancsali

Erno Fancsali has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10871608
    Abstract: An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide is included in each of the plurality of backlight segments and defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: December 22, 2020
    Assignee: Lumileds Holding B.V.
    Inventors: Floris Maria Hermansz Crompvoets, Erno Fancsali
  • Publication number: 20200382759
    Abstract: In an imaging system, a lens can redirect light from an illuminated portion of a scene toward a one-dimensional focus that is positioned in a focal plane of the lens and is elongated in an imaging dimension. The redirected light can include first light that emerges from the lens and second light that emerges from the lens. A reflector positioned adjacent the lens can reflect the second light to form third light. A linear array of detector pixels can extend along the imaging dimension and can be positioned at the focal plane proximate the one-dimensional focus to receive the first light from the lens and receive the third light from the reflector. A processor can obtain one-dimensional image data from the detector pixels for sequentially illuminated portions of the scene and construct data representing an image of the full scene from the one-dimensional image data.
    Type: Application
    Filed: November 25, 2019
    Publication date: December 3, 2020
    Inventors: Arjen Gerben Van der Sijde, Nicola Bettina Pfeffer, Frans Hubert Konijn, Erno Fancsali
  • Patent number: 10830937
    Abstract: A thin plastic light guide is formed to have cavities on one surface and TIR (total internal reflection) structures directly above the cavities. LEDs mounted on a printed circuit board are positioned in the cavities. The cavity walls are shaped to refract the LED light and direct the LED light toward the TIR structures to most efficiently make use of the TIR structures. The TIR structures may have a cusp or cone shape. The top ceiling of the cavities may be shaped to direct light at the TIR structure so as to leak through the TIR structure and blend the light with light leaking through surrounding portions of the light guide. The LEDs may be distributed only near the edges of the light guide or over the entire back surface of the light guide. A diffuser sheet may be laminated over the light guide to further mix the light.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: November 10, 2020
    Assignee: Lumileds LLC
    Inventors: Varun Dev Kakkar, Erno Fancsali, Frans Hubert Konijn
  • Publication number: 20200342244
    Abstract: The invention describes a device (1) and a method (100) for bio metric identification of an object with a significantly improved signal-to-noise ratio.
    Type: Application
    Filed: October 17, 2018
    Publication date: October 29, 2020
    Inventors: Erno Fancsali, Rob Engelen
  • Publication number: 20200279985
    Abstract: A method to make light-emitting diode (LED) units include arranging LEDs in a pattern, forming an optically transparent spacer layer over the LEDs, forming an optically reflective layer over the LEDs, and singulating the LEDs into LED units. The method may further include, after forming the optically transparent spacer layer and before singulating the LEDs, forming a secondary light-emitting layer that conforms to the LEDs, cutting the LEDs to form LED groups having a same arrangement, spacing the LED groups on a support, and forming the optically reflective layer in spaces between the LED groups.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Inventors: Frederic Stephane Diana, Erno Fancsali, Thierry De Smet, Gregory Donald Guth, Yourii Martynov, Oleg B. Shchekin, Jyoti Bhardwaj
  • Publication number: 20200264494
    Abstract: A device includes a light-emitting device (LED) having at least two vertical light-emitting sides, and a ring-shaped light guide having a bottom side, a top side comprising a light-emitting surface, an inner sidewall, and an outer sidewall defining an indentation having at least two vertical in-coupling surfaces mated to the at least two vertical light-emitting sides of the LED.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: Varun Dev Kakkar, Arjen Van Der Sijde, Erno Fancsali, Chunxia Feng, Nicola Bettina Pfeffer
  • Publication number: 20200225322
    Abstract: The disclosure relates to a lighting device for frequency-modulated emission. The object to provide a lighting device comprising a light-emitting diode (LED) that allows for higher operating frequencies and that in particular has an improved quality of the emitted light signal is solved in that the lighting device comprises: an LED; a resonant driver circuit with a tuned circuit; wherein the resonant driver circuit is configured to drive the tuned circuit with an operating frequency, and wherein the tuned circuit comprises the LED. The disclosure further relates to a method of operating a lighting device and a use of a lighting device.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Erno FANCSALI, Victor ZWANENBERG
  • Publication number: 20200150335
    Abstract: An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide is included in each of the plurality of backlight segments and defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Floris Maria Hermansz Crompvoets, Erno Fancsali
  • Patent number: 10564345
    Abstract: An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide is included in each of the plurality of backlight segments and defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: February 18, 2020
    Assignee: Lumileds Holding B.V.
    Inventors: Floris Maria Hermansz Crompvoets, Ernö Fancsali
  • Publication number: 20190348583
    Abstract: A light source includes a light-emitting diode or device (LED) and an optic mounted over the LED. The LED emits a first radiation pattern that is non-rotationally symmetric about a first axis. The optic collects the first radiation pattern and projects a second radiation pattern that is rotational symmetric about a second axis and has a peak intensity that is angled from the second axis.
    Type: Application
    Filed: September 15, 2017
    Publication date: November 14, 2019
    Applicant: Lumileds LLC
    Inventors: Varun Dev KAKKAR, Emanuel Nicolaas Hermanus Johannes STASSAR, Erno FANCSALI, Chunxia FENG, Rob Jacques Paul ENGELEN
  • Publication number: 20190326350
    Abstract: Described herein is source sensitive optic that uses reconfigurable chip-on-board (CoB) light emitting diode (LED) arrays as light sources. In an implementation, the reconfigurable CoB LED array includes a predetermined number of LEDs that are configurable for a variety of illumination scenarios. In an implementation, the reconfigurable CoB LED array is multiple CoB LED arrays that are configured for use with the source sensitive optic as described herein. The source sensitive optic includes surface shapes that are responsive to the reconfigurable CoB LED array. The source sensitive optic is configured to provide beam profile and radiation pattern differentiation based on a CoB LED array configuration configured from the reconfigurable CoB LED. Each configurable CoB LED array configuration radiates a different beam pattern via the surface shapes due to proximity and surface shape geometries.
    Type: Application
    Filed: May 3, 2019
    Publication date: October 24, 2019
    Inventors: Charles Schrama, Varun Dev Kakkar, Erno Fancsali
  • Publication number: 20190324193
    Abstract: An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide is included in each of the plurality of backlight segments and defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 24, 2019
    Applicant: Lumileds Holding B.V.
    Inventors: Floris Maria Hermansz Crompvoets, Ernö Fancsali
  • Publication number: 20190324190
    Abstract: An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide having a rectangular shape, a flat top surface, and a curved lower surface defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Applicant: Lumileds Holding B.V.
    Inventors: Floris Maria Hermansz CROMPVOETS, Ernõ FANCSALI
  • Publication number: 20190324191
    Abstract: An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide can have a rectangular shape, a flat top surface, and a curved lower surface that defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. The cavity sidewalls can include light in-coupling structures such as prisms. In one embodiment, each sidelight emitting LED can be rotated with respect to a rectangular cavity, with edges of the sidelight emitting LED facing corners of rectangular cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Applicant: Lumileds Holding B.V.
    Inventors: Floris Maria Hermansz CROMPVOETS, Ernö FANCSALI
  • Publication number: 20190319019
    Abstract: The invention describes a light emitting diode array module (30) comprising a plurality of light emitting diode structures (10a, 10b), wherein the light emitting diode structures (10a, 10b) are arranged such that there is an optical cross talk between the light emitting diode structures (10a, 10b) during operation of the light emitting diode array module (30), wherein at least a first light emitting diode structure (10a) of the plurality of light emitting diode structures (10a, 10b) is characterized by a first color, and wherein at least a second light emitting diode structure (10b) of the plurality of light emitting diode structures (10a, 10b) is characterized by a second color different than the first color, wherein 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 (40) perpendicular to an optical axis (50) of the light emitting diode array module (30).
    Type: Application
    Filed: December 13, 2017
    Publication date: October 17, 2019
    Inventors: Rob Jacques Paul Engelen, Frans Hubert Konijn, Charles André Schrama, Emanuel Nicolaas Hermanus Johannes Stassar, Erno Fancsali, Varun Dev Kakkar, Nicola Bettina Pfeffer
  • Patent number: 10340310
    Abstract: Described herein is source sensitive optic that uses reconfigurable chip-on-board (CoB) light emitting diode (LED) arrays as light sources. In an implementation, the reconfigurable CoB LED array includes a predetermined number of LEDs that are configurable for a variety of illumination scenarios. In an implementation, the reconfigurable CoB LED array is multiple CoB LED arrays that are configured for use with the source sensitive optic as described herein. The source sensitive optic includes surface shapes that are responsive to the reconfigurable CoB LED array. The source sensitive optic is configured to provide beam profile and radiation pattern differentiation based on a CoB LED array configuration configured from the reconfigurable CoB LED. Each configurable CoB LED array configuration radiates a different beam pattern via the surface shapes due to proximity and surface shape geometries.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: July 2, 2019
    Assignee: Lumileds LLC
    Inventors: Charles Schrama, Varun Dev Kakkar, Erno Fancsali
  • Publication number: 20190146142
    Abstract: A thin plastic light guide is formed to have cavities on one surface and TIR (total internal reflection) structures directly above the cavities. LEDs mounted on a printed circuit board are positioned in the cavities. The cavity walls are shaped to refract the LED light and direct the LED light toward the TIR structures to most efficiently make use of the TIR structures. The TIR structures may have a cusp or cone shape. The top ceiling of the cavities may be shaped to direct light at the TIR structure so as to leak through the TIR structure and blend the light with light leaking through surrounding portions of the light guide. The LEDs may be distributed only near the edges of the light guide or over the entire back surface of the light guide. A diffuser sheet may be laminated over the light guide to further mix the light.
    Type: Application
    Filed: November 8, 2016
    Publication date: May 16, 2019
    Applicant: Lumileds Holding B.V.
    Inventors: Varun Dev KAKKAR, Erno FANCSALI, Huub KONIJN
  • Publication number: 20190123095
    Abstract: Described herein is source sensitive optic that uses reconfigurable chip-on-board (CoB) light emitting diode (LED) arrays as light sources. In an implementation, the reconfigurable CoB LED array includes a predetermined number of LEDs that are configurable for a variety of illumination scenarios. In an implementation, the reconfigurable CoB LED array is multiple CoB LED arrays that are configured for use with the source sensitive optic as described herein. The source sensitive optic includes surface shapes that are responsive to the reconfigurable CoB LED array. The source sensitive optic is configured to provide beam profile and radiation pattern differentiation based on a CoB LED array configuration configured from the reconfigurable CoB LED. Each configurable CoB LED array configuration radiates a different beam pattern via the surface shapes due to proximity and surface shape geometries.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 25, 2019
    Applicant: Lumileds LLC
    Inventors: Charles SCHRAMA, Varun Dev KAKKAR, Erno FANCSALI
  • Publication number: 20190088840
    Abstract: A method to make light-emitting diode (LED) units include arranging LEDs in a pattern, forming an optically transparent spacer layer over the LEDs, forming an optically reflective layer over the LEDs, and singulating the LEDs into LED units. The method may further include, after forming the optically transparent spacer layer and before singulating the LEDs, forming a secondary light-emitting layer that conforms to the LEDs, cutting the LEDs to form LED groups having a same arrangement, spacing the LED groups on a support, and forming the optically reflective layer in spaces between the LED groups.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 21, 2019
    Applicant: Lumileds Holding B.V.
    Inventors: Frederic S. DIANA, Erno FANCSALI, Thierry DE SMET, Gregory GUTH, Yourii MARTYNOV, Oleg B. SHCHEKIN, Jyoti BHARDWAJ
  • Publication number: 20190033688
    Abstract: A device includes a light-emitting device (LED) having at least two vertical light-emitting sides, and a ring-shaped light guide having a bottom side, a top side comprising a light-emitting surface, an inner sidewall, and an outer sidewall defining an indentation having at least two vertical in-coupling surfaces mated to the at least two vertical light-emitting sides of the LED.
    Type: Application
    Filed: January 16, 2017
    Publication date: January 31, 2019
    Applicant: Lumileds Holding B.V.
    Inventors: Varun Dev KAKKAR, Arjen VAN DER SIJDE, Erno FANCSALI, Chunxia FENG, Nicola PFEFFER