Patents by Inventor Rob Jacques Paul ENGELEN
Rob Jacques Paul ENGELEN 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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Patent number: 11900859Abstract: A driver system controls a plurality of light emitting diodes (LEDs). The driver system includes a first driver to provide an LED current to each of the plurality of LEDs. The first driver includes a current mirror for the LED current provided to the plurality of LEDs. The driver system also includes a second driver to modulate the LED current provided to the plurality of LEDs.Type: GrantFiled: May 21, 2021Date of Patent: February 13, 2024Assignee: Lumileds LLCInventors: Wilhelmus Johannes Robertus Van Lier, Marcus Hendrikus Adrianus van Steen, Nicola Bettina Pfeffer, Rob Jacques Paul Engelen, Erkan Diken, Arjen Gerben Van Der Sijde
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Publication number: 20230415414Abstract: A three-dimensional (3D) printer includes a build platform, a resin tank configured to hold resin, a micro-light emitting diode (LED) array including micro-LEDs situated to provide ultraviolet (UV) or blue light to the resin in the resin tank, and a control circuit configured to control which LEDs of the micro-LED array are active and pattern the light produced by the micro-LED array for selectively curing the resin in the resin tank.Type: ApplicationFiled: November 14, 2022Publication date: December 28, 2023Inventors: Marcus Hendrikus Adrianus van Steen, Rob Jacques Paul Engelen, Nicola Bettina Pfeffer
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Patent number: 11817431Abstract: 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 an-ay module (30).Type: GrantFiled: April 6, 2021Date of Patent: November 14, 2023Assignee: Lumileds LLCInventors: 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: 11800233Abstract: An apparatus includes a neuromorphic vision unit, an array, and a controller. The neuromorphic vision unit includes a plurality of pixels to photoelectrically produce data based on light received from an object in a scene. The array includes a plurality of light sources. The controller controls the plurality of light sources at one of a plurality of granularities, at least in part based on the data.Type: GrantFiled: May 21, 2021Date of Patent: October 24, 2023Assignee: Lumileds LLCInventors: Erkan Diken, Arjen Gerben Van Der Sijde, Nicola Bettina Pfeffer, Wilhelmus Johannes Robertus Van Lier, Marcus Hendrikus Adrianus van Steen, Rob Jacques Paul Engelen
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Patent number: 11714218Abstract: Systems, methods and devices are for optical imaging are described. A system includes a light source and a light detection unit. The light source includes a light-emitting device and a first spectral filter opposite the light emitting device. The first spectral filter includes at least one dielectric filter and has a first angular dependence of a transmission passband. The light source further includes at least one reflector adjacent side surfaces of the light emitting device. The light detection unit includes an optical sensor and a second spectral filter opposite the optical sensor. The second spatial filter has a second angular dependence of a transmission passband that is matched to the first angular dependence.Type: GrantFiled: June 15, 2021Date of Patent: August 1, 2023Assignee: Lumileds LLCInventors: Rob Jacques Paul Engelen, Varun Dev Kakkar
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Publication number: 20230184408Abstract: An illumination system and method can provide illumination at a specified color point. A first lens can project first light, from a first light-emitting diode (LED) array of first LEDs, corresponding to a specified illumination pattern and having a first color point, onto a scene to form first illumination regions at the scene that correspond to the first LEDs. A second lens can project second light, from a second LED array of second LEDs, having a second color point, onto the scene to form second illumination regions at the scene that at least partially overlap with corresponding first illumination regions at the scene. The first illumination can combine with the second illumination at the scene to form combined illumination that corresponds to the specified illumination pattern. The combined illumination can have a specified color point, such as between the first color point and the second color point.Type: ApplicationFiled: November 21, 2022Publication date: June 15, 2023Inventor: Rob Jacques Paul Engelen
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Patent number: 11677216Abstract: A light-emitting device comprising VCSELs formed in a die. The VCSEL distribution is characterized by an essentially linear decrease in VCSEL density over the die from a highest VCSEL density in a first die region to a lowest VCSEL density in another die region. The VCSELs share a common anode and a common cathode for collective switching of the plurality of VCSELs. A method of manufacturing such a VCSEL die is also described.Type: GrantFiled: January 28, 2020Date of Patent: June 13, 2023Assignee: LUMILEDS LLCInventor: Rob Jacques Paul Engelen
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Patent number: 11619829Abstract: An autostereoscopic 3D display assembly includes pixels configured to generate a first image intended for a user's left eye, and a second image intended for a user's right eye. Each of the images is projected with a respective line pattern, where the bright portions of the left eye line pattern alternate with the bright portions of the right eye line pattern. The left eye and right eye line patterns are formed using a grating or a double grating. In one embodiment, right eye pixels and left eye pixels each include a double grating, with a different offset between the first grating and second grating to generate the different line patterns. In another embodiment, right eye pixels and left eye pixels each include a grating and one or more micro-LEDs, with a different offset between the grating and the micro-LEDs to generate the different line patterns.Type: GrantFiled: December 10, 2020Date of Patent: April 4, 2023Assignee: Lumileds LLCInventors: Mehdi Aas, Rob Jacques Paul Engelen
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Patent number: 11611012Abstract: A lighting device and method for manufacturing the lighting device are provided. A substrate contains at least a first surface and a second surface opposing the first surface. Light-sensitive material is provided on the first surface and/or the second surface. The light-sensitive material is exposed to light by applying the light from a light source onto a mask having a periodic pattern of light-attenuating features with interspaced light-permeable features. The light forms a periodic distribution of high intensity regions with interspaced low intensity regions at the first surface and/or the second surface. A periodic structure is formed based on the exposed light-sensitive material and includes light-attenuating features and light-permeable features corresponding to the light-attenuating features and light-permeable features of the mask.Type: GrantFiled: December 3, 2020Date of Patent: March 21, 2023Assignee: Lumileds LLCInventor: Rob Jacques Paul Engelen
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Publication number: 20220377222Abstract: An apparatus includes a neuromorphic vision unit, an array, and a controller. The neuromorphic vision unit includes a plurality of pixels to photoelectrically produce data based on light received from an object in a scene. The array includes a plurality of light sources. The controller controls the plurality of light sources at one of a plurality of granularities, at least in part based on the data.Type: ApplicationFiled: May 21, 2021Publication date: November 24, 2022Applicant: Lumileds LLCInventors: Erkan Diken, Arjen Gerben Van Der Sijde, Nicola Bettina Pfeffer, Wilhelmus Johannes Robertus Van Lier, Marcus Hendrikus Adrianus van Steen, Rob Jacques Paul Engelen
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Publication number: 20220375397Abstract: A driver system controls a plurality of light emitting diodes (LEDs). The driver system includes a first driver to provide an LED current to each of the plurality of LEDs. The first driver includes a current mirror for the LED current provided to the plurality of LEDs. The driver system also includes a second driver to modulate the LED current provided to the plurality of LEDs.Type: ApplicationFiled: May 21, 2021Publication date: November 24, 2022Applicant: Lumileds LLCInventors: Wilhelmus Johannes Robertus Van Lier, Marcus Hendrikus Adrianus van Steen, Nicola Bettina Pfeffer, Rob Jacques Paul Engelen, Erkan Diken, Arjen Gerben Van Der Sijde
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Publication number: 20220187612Abstract: An autostereoscopic 3D display assembly includes pixels configured to generate a first image intended for a user's left eye, and a second image intended for a user's right eye. Each of the images is projected with a respective line pattern, where the bright portions of the left eye line pattern alternate with the bright portions of the right eye line pattern. The left eye and right eye line patterns are formed using a grating or a double grating. In one embodiment, right eye pixels and left eye pixels each include a double grating, with a different offset between the first grating and second grating to generate the different line patterns. In another embodiment, right eye pixels and left eye pixels each include a grating and one or more micro-LEDs, with a different offset between the grating and the micro-LEDs to generate the different line patterns.Type: ApplicationFiled: December 10, 2020Publication date: June 16, 2022Applicant: Lumileds LLCInventors: Mehdi Aas, Rob Jacques Paul Engelen
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Patent number: 11231159Abstract: A system can include a light emitting diode (LED) and a transparent structure disposed over the LED. The transparent structure includes a first surface that reflects light extracted from the LED and incident on the first surface. The transparent structure also includes an exit surface opposite the first surface. The exit surface includes a first area that is textured to diffuse light over a first angular range and a second area that is textured to diffuse light over a second angular range. The second angular range is wider than the first angular range.Type: GrantFiled: October 20, 2020Date of Patent: January 25, 2022Assignee: Lumileds LLCInventor: Rob Jacques Paul Engelen
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Publication number: 20210311234Abstract: Systems, methods and devices are for optical imaging are described. A system includes a light source and a light detection unit. The light source includes a light-emitting device and a first spectral filter opposite the light emitting device. The first spectral filter includes at least one dielectric filter and has a first angular dependence of a transmission passband. The light source further includes at least one reflector adjacent side surfaces of the light emitting device. The light detection unit includes an optical sensor and a second spectral filter opposite the optical sensor. The second spatial filter has a second angular dependence of a transmission passband that is matched to the first angular dependence.Type: ApplicationFiled: June 15, 2021Publication date: October 7, 2021Inventors: Rob Jacques Paul Engelen, Varun Dev Kakkar
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Publication number: 20210225816Abstract: 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 an-ay module (30).Type: ApplicationFiled: April 6, 2021Publication date: July 22, 2021Inventors: 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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Publication number: 20210193862Abstract: A lighting device and method for manufacturing the lighting device are provided. A substrate contains at least a first surface and a second surface opposing the first surface. Light-sensitive material is provided on the first surface and/or the second surface. The light-sensitive material is exposed to light by applying the light from a light source onto a mask having a periodic pattern of light-attenuating features with interspaced light-permeable features. The light forms a periodic distribution of high intensity regions with interspaced low intensity regions at the first surface and/or the second surface. A periodic structure is formed based on the exposed light-sensitive material and includes light-attenuating features and light-permeable features corresponding to the light-attenuating features and light-permeable features of the mask.Type: ApplicationFiled: December 3, 2020Publication date: June 24, 2021Inventor: Rob Jacques Paul Engelen
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Patent number: 11003019Abstract: 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: GrantFiled: January 9, 2020Date of Patent: May 11, 2021Assignee: Lumileds LLCInventor: Rob Jacques Paul Engelen
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Patent number: 10998298Abstract: 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: GrantFiled: December 13, 2017Date of Patent: May 4, 2021Assignee: Lumileds LLCInventors: 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: 10930828Abstract: 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: GrantFiled: September 15, 2017Date of Patent: February 23, 2021Assignee: Lumileds LLCInventors: Varun Dev Kakkar, Emanuel Nicolaas Hermanus Johannes Stassar, Erno Fancsali, Chunxia Feng, Rob Jacques Paul Engelen
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Publication number: 20210033259Abstract: A system can include a light emitting diode (LED) and a transparent structure disposed over the LED. The transparent structure includes a first surface that reflects light extracted from the LED and incident on the first surface. The transparent structure also includes an exit surface opposite the first surface. The exit surface includes a first area that is textured to diffuse light over a first angular range and a second area that is textured to diffuse light over a second angular range. The second angular range is wider than the first angular range.Type: ApplicationFiled: October 20, 2020Publication date: February 4, 2021Inventor: Rob Jacques Paul Engelen