Patents Assigned to LEDVANCE LLC
  • Patent number: 12267934
    Abstract: A system for configuring a light structure that includes a light engine including at least one lighting scheme comprised of light emitting diodes (LEDs); and driver electronics for powering the light engine. The driver electronics also including at least a mixing integrated circuit (IC) for controlling current to the at one lighting schemes, and a near field communication (NFC) circuit having a near field communication (NFC) receiver and memory for storing instructions for sending signals from the NFC circuit to the mixing integrated circuit. The NFC receiver receives an external command signal that the instructions stored in the memory of the NFC circuit employ to provide for an NFC control signal to the mixing integrated circuit (IC) to adjust lighting characteristics of the light engine.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: April 1, 2025
    Assignee: LEDVANCE LLC
    Inventors: Ming Li, Tianzheng Jiang, Anil Jeswani
  • Patent number: 12196394
    Abstract: A retrofit light emitting diode structure that includes a light emitting diode (LED) panel including at least a light emitting diode (LED) light source contained within an assembly or a lens and base housing. At least one track bracket is present on at least a portion of the perimeter of the base housing. The track bracket includes an opening to a race. An assembly mechanism is fastened to the track bracket that is positioned for engagement to an opening in a housing mount for the LED panel, wherein the assembly mechanism includes a tether having a length for providing an assembly distance from the housing mount. The retrofit light emitting diode (LED) structure also includes a retaining mechanism, wherein a base of the retaining mechanism includes a profile for engagement to the race of the track bracket and retaining arms extend through the opening to the race for reversible engagement to slots in the housing mount for the LED panel.
    Type: Grant
    Filed: February 7, 2024
    Date of Patent: January 14, 2025
    Assignee: LEDVANCE LLC
    Inventors: Anil Jeswani, Tianzheng Jiang, Ming Li
  • Patent number: 12160938
    Abstract: A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture; and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.
    Type: Grant
    Filed: March 11, 2024
    Date of Patent: December 3, 2024
    Assignee: LEDVANCE LLC
    Inventors: Soumya Kanta Ray, Anil Jeswani
  • Patent number: 11963276
    Abstract: A driver circuit that includes an input side including a power input circuit and an output side including a light emitting diode (LED) output current circuit. The output side of the driver circuit includes an output smoothing capacitor for controlling flicker percentage. A light emitting diode (LED) power supply circuit is present between the input side and the output side for controlling current from the AC power input circuit to the light emitting diode (LED) output current circuit. The LED power supply circuit includes at least two linear current regulators that are connected in parallel. The circuit also includes a controller circuit including a controller for signaling the light emitting diode (LED) power supply to control current to the light emitting diode (LED) output current circuit to provide a lighting characteristic.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: April 16, 2024
    Assignee: LEDVANCE LLC
    Inventors: Yuhao Liu, Nilesh Patel, Ming Li
  • Patent number: 11937348
    Abstract: A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture; and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: March 19, 2024
    Assignee: LEDVANCE LLC
    Inventors: Soumya Kanta Ray, Anil Jeswani
  • Patent number: 11933459
    Abstract: A lamp including electrical leads extending into a supporting stem that are in communication with a base electrode for engagement to a light fixture; and a light engine comprising light emitting diode filaments that are in electrical communication with the electrical leads. The light emitting diode filaments including a circuit having a plurality of contact pads arranged along a length of a substrate. The light emitting diode filaments further include light emitting diode (LED) chips engaged to the contact pads along the length of the substrate to provide that the light emitting diode (LED) chips are electrically connected in series. In some embodiments, each light emitting diode (LED) chip includes at least a light transmission surface that is in contact with an individual portion of phosphor for the LED chip. In other embodiments, a phosphor layer extends over an island of LED chips.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: March 19, 2024
    Assignee: LEDVANCE LLC
    Inventors: Xingrong Wang, Tianzheng Jiang, Ming Li
  • Patent number: 11930301
    Abstract: A camera is provided that stores an encryption key locally and transmits the encryption key using near field communication (NFC) when the encryption key is requested by the user. In one embodiment, the camera includes a lens for recording video and an encryption engine for encrypting the video. The camera further includes a security chip for storing an encryption key locally in the camera. Additionally, the camera includes a near field communication (NFC) module that provides a bridge between the security chip of the camera and the device at which the user is viewing the images recorded by the lens. The NFC module includes memory for temporarily storing the encryption key and an NFC transceiver for sending the encryption key from the memory of the NFC module to the device at which the user is viewing the images recorded by the lens of the camera.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: March 12, 2024
    Assignee: LEDVANCE LLC
    Inventors: Wuqiang Liao, Ming Li
  • Patent number: 11852328
    Abstract: A light structure including a first housing having a light engine including at least one lighting scheme comprised of LEDs; and a second housing for containing driver electronics. The driver electronics including at least a mixing integrated circuit (IC) for controlling current to the at least one lighting scheme, and a near field communication (NFC) circuit having a near field communication (NFC) receiver and memory for storing instructions for sending pulse width modulation (PWM) signals from the NFC circuit to the mixing integrated circuit. The NFC receiver can receive an external command signal that the instructions stored in the memory of the NFC circuit employ to provide for an NFC control signal including at least one of the PWM signals to the mixing integrated circuit (IC). The mixing integrated circuit (IC) receiving the control signal sets current to control light characteristics for light being emitted by the light engine.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: December 26, 2023
    Assignee: LEDVANCE LLC
    Inventors: Anil Jeswani, Renaud Richard, Ahmed Eissa, Ming Li, Tianzheng Jiang
  • Patent number: 11703192
    Abstract: A method of lamp assembly that etching a glass tube body to increase a texture of the surface of the sidewall of the glass tube body, the sidewall of the glass tube body enclosing a hollow interior; and positioning a circuit board including a plurality of light emitting diodes (LEDs) within the hollow interior of the glass tube, wherein the increase in the texture of the surface increases the light diffusivity of the glass tube body.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: July 18, 2023
    Assignee: LEDVANCE LLC
    Inventors: Philip Rioux, Shiyong Zhang
  • Patent number: 11703193
    Abstract: A tube lamp including a light source including at least one string of light emitting diodes within a tube body; end caps having pin contacts on each end of the tube body; and driver electronics including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture. The tube lamp may also include a switch for selecting light characteristics for light emitted by the light source.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: July 18, 2023
    Assignee: LEDVANCE LLC
    Inventors: Soumya Kanta Ray, Anil Jeswani
  • Patent number: 11674679
    Abstract: A lighting test method that includes connecting a housing including driver electronics and a junction box to a main power source. The main power source is connected to a main power connector in the junction box. The driver electronics includes a first terminal. The method further includes connecting a power testing module to the first terminal to the driver electronics to determine whether the main power source is correctly connected to the main power connector in the junction box. The method further includes replacing the power testing module with a second terminal of a light engine housing. Connecting the first and second terminals provides that the driver electronics are in electrical communication with a light engine within the light engine housing.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: June 13, 2023
    Assignee: LEDVANCE LLC
    Inventors: Anil Jeswani, Renaud Richard, Ahmed Eissa, Valeriy Zolotykh
  • Patent number: 11596805
    Abstract: In one aspect, a luminaire is provided for illumination, in which the luminaire has a normalized spectral power distribution (SPD) curve for promoting human wellness, the normalized SPD curve having the following percentage areas for the following wavelength domains, the normalized SPD curve including spectral energy in a 620 nm to 640 nm region of the SPD curve ranging from 9.5% to 10.5% of a total of an area for a normalized SPD curve; spectral energy in a 640 nm to 660 nm region of the SPD curve ranging from 7.25% to 9.8% of the total of the area of the normalized SPD curve; spectral energy in a 660 nm to 680 nm region of the SPD curve ranging from 4.8% to 7.8% of the total of the area for the normalized SPD curve; spectral energy in a 680 nm to 700 nm region of the SPD curve ranging from 2.75% to 5.5% of the total of the area for the normalized SPD curve; and a remainder of spectral energy of the total normalized SPD curve is in a 400 nm to 620 nm region area of the SPD curve.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: March 7, 2023
    Assignee: LEDVANCE LLC
    Inventor: Arunava Dutta
  • Patent number: 11599691
    Abstract: A computer implemented method for illumination planning is provided that includes providing a floorplan having at least one lighting space; and assigning functions to the at least one lighting space. The lighting space and functions assigned to the lighting space of the floorplan are matched to a historical lighting schema. A lighting layout is extracted from the historical lighting schema and matched to the lighting space. A light package is extracted from the historical lighting schema and matched to the lighting space. A calculation of lighting performance for the lighting layout and the light package that has been matched to the lighting space is conducted to determine whether the lighting performance meets a lighting standard or whether the lighting performance does not meet the lighting standard. The computer implemented method further includes producing a conclusion for the lighting scenario for suitability to the floorplan and functions.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: March 7, 2023
    Assignee: LEDVANCE LLC
    Inventors: Yafen Zhang, Heng Li, Shu Yi, Zhijun Ou, Wuqiang Liao, Jianfei Zheng
  • Patent number: 11530806
    Abstract: A lighting test method that includes connecting a housing including driver electronics and a junction box to a main power source. The main power source is connected to a main power connector in the junction box. The driver electronics includes a first terminal. The method further includes connecting a power testing module to the first terminal to the driver electronics to determine whether the main power source is correctly connected to the main power connector in the junction box. The method further includes replacing the power testing module with a second terminal of a light engine housing. Connecting the first and second terminals provides that the driver electronics are in electrical communication with a light engine within the light engine housing.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: December 20, 2022
    Assignee: LEDVANCE LLC
    Inventors: Anil Jeswani, Renaud Richard, Ahmed Eissa, Valeriy Zolotykh
  • Patent number: 11503684
    Abstract: The present disclosure provides methods and structures for controlling characteristics of light being projected from a light source. In one embodiment, the method includes selecting a color setting of light to be projected by a light engine having at least one light emitting diode; and monitoring temperature of the light engine with a thermistor. The changes in resistance measurements taken from the thermistor are correlated to changes in the temperature of the light engine. The method for controlling characteristics of light being projected from the light source may further include setting characteristics of the electrical signal to energize the light emitting diodes of the light engine to provide the color setting selected at the temperature of the light engine measured using the thermistor.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: November 15, 2022
    Assignee: LEDVANCE LLC
    Inventors: Ming Li, Yuhao Liu
  • Patent number: 11497091
    Abstract: A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture: and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: November 8, 2022
    Assignee: LEDVANCE LLC
    Inventors: Soumya Kanta Ray, Anil Jeswani
  • Patent number: 11478659
    Abstract: In one aspect, a luminaire is provided for illumination, in which the luminaire has a normalized spectral power distribution (SPD) curve for promoting human wellness, the normalized SPD curve having the following percentage areas for the following wavelength domains, the normalized SPD curve including spectral energy in a 620 nm to 640 nm region of the SPD curve ranging from 9.5% to 10.5% of a total of an area for a normalized SPD curve; spectral energy in a 640 nm to 660 nm region of the SPD curve ranging from 7.25% to 9.8% of the total of the area of the normalized SPD curve; spectral energy in a 660 nm to 680 nm region of the SPD curve ranging from 4.8% to 7.8% of the total of the area for the normalized SPD curve; spectral energy in a 680 nm to 700 nm region of the SPD curve ranging from 2.75% to 5.5% of the total of the area for the normalized SPD curve; and a remainder of spectral energy of the total normalized SPD curve is in a 400 nm to 620 nm region area of the SPD curve.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: October 25, 2022
    Assignee: LEDVANCE LLC
    Inventor: Arunava Dutta
  • Patent number: 11425803
    Abstract: In one aspect, a method for controlling lighting is provided. In one embodiment, the method includes setting an initial setting for lighting characteristics for light emitted by lighting devices; and recording user adjustments to the lighting characteristic from the initial setting as user data. The method further includes analysis of the user data with a remote light setting computing system to determine a lighting model for providing a predictive light characteristic light setting in response to an environment factor based input; and inputting environmental factors into the model produced by the remote light setting computing system to provide a predictive light characteristic setting. Light being emitted from the light emitting devices is then adjusted to the predictive light characteristics using a local controller in response to a user lighting request.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: August 23, 2022
    Assignee: LEDVANCE LLC
    Inventors: Aaron Ganick, Shiyong Zhang
  • Patent number: 11317492
    Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: April 26, 2022
    Assignee: LEDVANCE LLC
    Inventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
  • Patent number: 11306901
    Abstract: A luminaire that includes a housing having a downlight geometry and containing a light engine including light emitting diodes (LEDs), in which the light engine is positioned to emit light through a light emission end of the housing. The housing contains driver electronics for controlling power received by the luminaire for powering the light engine. An access opening on a back surface of the housing exposes the driver electronics. A junction box supporting at least a portion of a wireless control module. The junction box having an electrical pathway opening is engaged to the back surface of the housing. The wireless control module is contained in the knockout of the junction box. Electrical communication between the wireless control module and the driver circuit is across a physical electrically conductive pathway that extends through the electrical pathway opening of the junction box.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: April 19, 2022
    Assignee: LEDVANCE LLC
    Inventors: Anil Jeswani, Ahmed Eissa, Renaud Richard, Janet Milliez, Valeriy Zolotykh