Patents by Inventor Ernõ FANCSALI
Ernõ 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).
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Publication number: 20200264494Abstract: 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: ApplicationFiled: May 5, 2020Publication date: August 20, 2020Inventors: Varun Dev Kakkar, Arjen Van Der Sijde, Erno Fancsali, Chunxia Feng, Nicola Bettina Pfeffer
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Publication number: 20200225322Abstract: 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: ApplicationFiled: January 13, 2020Publication date: July 16, 2020Applicant: LUMILEDS HOLDING B.V.Inventors: Erno FANCSALI, Victor ZWANENBERG
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Publication number: 20200150335Abstract: 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: ApplicationFiled: January 13, 2020Publication date: May 14, 2020Inventors: Floris Maria Hermansz Crompvoets, Erno Fancsali
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Patent number: 10564345Abstract: 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: GrantFiled: April 16, 2019Date of Patent: February 18, 2020Assignee: Lumileds Holding B.V.Inventors: Floris Maria Hermansz Crompvoets, Ernö Fancsali
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Publication number: 20190348583Abstract: 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: ApplicationFiled: September 15, 2017Publication date: November 14, 2019Applicant: Lumileds LLCInventors: Varun Dev KAKKAR, Emanuel Nicolaas Hermanus Johannes STASSAR, Erno FANCSALI, Chunxia FENG, Rob Jacques Paul ENGELEN
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Publication number: 20190324190Abstract: 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: ApplicationFiled: April 17, 2019Publication date: October 24, 2019Applicant: Lumileds Holding B.V.Inventors: Floris Maria Hermansz CROMPVOETS, Ernõ FANCSALI
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Publication number: 20190324193Abstract: 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: ApplicationFiled: April 16, 2019Publication date: October 24, 2019Applicant: Lumileds Holding B.V.Inventors: Floris Maria Hermansz Crompvoets, Ernö Fancsali
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Publication number: 20190324191Abstract: 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: ApplicationFiled: April 17, 2019Publication date: October 24, 2019Applicant: Lumileds Holding B.V.Inventors: Floris Maria Hermansz CROMPVOETS, Ernö FANCSALI
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Publication number: 20190326350Abstract: 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: ApplicationFiled: May 3, 2019Publication date: October 24, 2019Inventors: Charles Schrama, Varun Dev Kakkar, Erno Fancsali
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Publication number: 20190319019Abstract: 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: ApplicationFiled: December 13, 2017Publication date: October 17, 2019Inventors: Rob Jacques Paul Engelen, Frans Hubert Konijn, Charles André Schrama, Emanuel Nicolaas Hermanus Johannes Stassar, Erno Fancsali, Varun Dev Kakkar, Nicola Bettina Pfeffer
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Patent number: 10340310Abstract: 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: GrantFiled: October 25, 2017Date of Patent: July 2, 2019Assignee: Lumileds LLCInventors: Charles Schrama, Varun Dev Kakkar, Erno Fancsali
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Publication number: 20190146142Abstract: 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: ApplicationFiled: November 8, 2016Publication date: May 16, 2019Applicant: Lumileds Holding B.V.Inventors: Varun Dev KAKKAR, Erno FANCSALI, Huub KONIJN
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Publication number: 20190123095Abstract: 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: ApplicationFiled: October 25, 2017Publication date: April 25, 2019Applicant: Lumileds LLCInventors: Charles SCHRAMA, Varun Dev KAKKAR, Erno FANCSALI
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Publication number: 20190088840Abstract: 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: ApplicationFiled: September 2, 2016Publication date: March 21, 2019Applicant: Lumileds Holding B.V.Inventors: Frederic S. DIANA, Erno FANCSALI, Thierry DE SMET, Gregory GUTH, Yourii MARTYNOV, Oleg B. SHCHEKIN, Jyoti BHARDWAJ
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Publication number: 20190033688Abstract: 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: ApplicationFiled: January 16, 2017Publication date: January 31, 2019Applicant: Lumileds Holding B.V.Inventors: Varun Dev KAKKAR, Arjen VAN DER SIJDE, Erno FANCSALI, Chunxia FENG, Nicola PFEFFER
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Patent number: 10193035Abstract: A light emitting structure includes a packaged back-emitting light emitting device mounted on a reflective substrate. The properties of the reflective surface may be controlled to provide a desired luminance pattern. In this manner, the creation of a light emitting structure that provides a desired luminance pattern may be independent of the provider of the packaged light emitting device.Type: GrantFiled: September 22, 2015Date of Patent: January 29, 2019Assignee: Lumileds LLCInventors: Frederic Stephane Diana, Erno Fancsali, Thierry De Smet, Gregory Guth, Yourii Martynov
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Patent number: 10164160Abstract: A light emitting structure includes a packaged back-emitting light emitting device mounted on a reflective substrate. The properties of the reflective surface may be controlled to provide a desired luminance pattern. In this manner, the creation of a light emitting structure that provides a desired luminance pattern may be independent of the provider of the packaged light emitting device.Type: GrantFiled: September 22, 2015Date of Patent: December 25, 2018Assignee: Lumileds LLCInventors: Frederic Stephane Diana, Erno Fancsali, Thierry De Smet, Gregory Guth, Yourii Martynov
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Publication number: 20170279016Abstract: A light emitting structure includes a packaged back-emitting light emitting device mounted on a reflective substrate. The properties of the reflective surface may be controlled to provide a desired luminance pattern. In this manner, the creation of a light emitting structure that provides a desired luminance pattern may be independent of the provider of the packaged light emitting device.Type: ApplicationFiled: September 22, 2015Publication date: September 28, 2017Applicant: Koninklijke Philips N.V.Inventors: Frederic Stephane DIANA, Erno FANCSALI, Thierry DE SMET, Gregory GUTH, Yourii MARTYNOV
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Patent number: 8690395Abstract: The invention relates to a light emitting device (2) comprising a primary light source (10), a light converting medium (14) and an optical structure (16). The primary light source is disposed on a substrate (11). The light converting medium comprising phosphors (14) is arranged for converting at least a part of the primary light to secondary light (II) of a different wavelength. The light converting medium is in a remote phosphor configuration. The optical structure is arranged for receiving a part of the secondary light (II) from the light converting medium and is configured for redirecting the part of the secondary light in a direction towards the first plane but away for the primary light source (10). By providing an optical structure redirecting the secondary light away from the primary light source, absorption of the secondary light by the primary light source can be substantially reduced or eliminated.Type: GrantFiled: May 27, 2010Date of Patent: April 8, 2014Assignee: Koninklijke Philips Electronics N.V.Inventors: Erno Fancsali, Willem Hendrik Smits, Pascal Jean Henri Bloemen
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Publication number: 20120087106Abstract: The invention relates to a light emitting device (2) comprising a primary light source (10), a light converting medium (14) and an optical structure (16). The primary light source is disposed on a substrate (11). The light converting medium comprising phosphors (14) is arranged for converting at least a part of the primary light to secondary light (II) of a different wavelength. The light converting medium is in a remote phosphor configuration. The optical structure is arranged for receiving a part of the secondary light (II) from the light converting medium and is configured for redirecting the part of the secondary light in a direction towards the first plane but away for the primary light source (10). By providing an optical structure redirecting the secondary light away from the primary light source, absorption of the secondary light by the primary light source can be substantially reduced or eliminated.Type: ApplicationFiled: May 27, 2010Publication date: April 12, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Erno Fancsali, Willem Hendrik Smits, Pascal Jean Henri Bloemen