Patents Assigned to CURRENT LIGHTING SOLUTIONS, LLC
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Patent number: 11952521Abstract: A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4??I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 doped phosphor; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and wherein a value of a Hammett acidity function of the first solution is at least ?0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 ?m.Type: GrantFiled: November 2, 2021Date of Patent: April 9, 2024Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: James Edward Murphy, Srinivas Prasad Sista, Samuel Joseph Camardello
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Patent number: 11941794Abstract: System and methods and computer program code are provided to perform a commissioning process comprising capturing, using an image capture device, an image of an area containing at least a first fixture, identifying location and positioning information associated with the image, performing image processing of the image to identify a location of the at least first fixture in the image, and converting the location of the at least first fixture in the image into physical coordinate information associated with the at least first fixture.Type: GrantFiled: August 19, 2020Date of Patent: March 26, 2024Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Glenn Howard Kuenzler, Taylor Apolonius Barto
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Patent number: 11910763Abstract: A horticultural lighting fixture including a light bar including a plurality of solid state light sources arranged in a linear array along a longitudinal axis of the light bar; and a light bar support structure that couples with the light bar to support the light bar in a fixed spaced relationship with the light support structure, the light bar support structure including at least two fasteners at opposing terminal ends of the light bar support structure to attach to a vertical support.Type: GrantFiled: June 10, 2021Date of Patent: February 27, 2024Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Raghu Ramaiah, Mark Kaminski, Jonathan Meyer
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Patent number: 11860399Abstract: A remote phosphor package according to the present invention includes a green emitting quantum dot material and a Mn4+ doped phosphor of formula I, dispersed in a host matrix wherein A is Li, Na, K, Rb, Cs, or combinations thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or combinations thereof; x is an absolute value of a charge of the [MFy] ion; and y is 5, 6 or 7.Type: GrantFiled: July 23, 2020Date of Patent: January 2, 2024Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventor: James Edward Murphy
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Patent number: 11851595Abstract: A lighting apparatus includes a semiconductor light source in direct contact with a polymer composite comprising a color stable Mn4+ doped phosphor, wherein the lighting apparatus has a color shift of ?1.5 MacAdam ellipses after operating for at least 2,000 hour at a LED current density greater than 2 A/cm2, a LED wall-plug efficiency greater than 40%, and a board temperature greater than 25° C.Type: GrantFiled: July 13, 2021Date of Patent: December 26, 2023Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: James Edward Murphy, Anant Achyut Setlur, Florencio Garcia, Robert Joseph Lyons, Ashfaqul Islam Chowdhury, Nagaveni Karkada, Prasanth Kumar Nammalwar, William Winder Beers
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Publication number: 20230390428Abstract: A disinfection light source comprises one or more disinfection light emitters and electronics conducting electric power to the disinfection light emitters to drive them to emit light. The electronics include a safety interlock circuit that includes: an ammeter measuring electric current flowing through the one or more disinfection light emitters; an analysis circuit analyzing the electric current measured by the ammeter; a timer circuit configured to run while the analysis circuit detects a high irradiation condition; and a switch to interrupt the conduction of the electric power to the one or more disinfection light emitters in response to the timer circuit running and reaching a delay interval of the timer circuit. The analysis circuit may comprise a comparator comparing the electric current measured by the ammeter with an electrical reference value, and the timer circuit then runs while the comparator indicates the electric current exceeds the electrical reference value.Type: ApplicationFiled: October 7, 2021Publication date: December 7, 2023Applicant: CURRENT LIGHTING SOLUTIONS, LLCInventor: Stephen P. Glaudel
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Patent number: 11835209Abstract: A lighting system includes a light source, a light redirection element, and a movement mechanism coupled to the light source and the light redirection element. The movement mechanism is configured to simultaneously or stepwise move the light source and the light redirection element between a top lighting position and an interlighting position.Type: GrantFiled: March 30, 2022Date of Patent: December 5, 2023Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Michel Doss, Alin Ionut Petrescu, Bruno D'Amico, Eden Dubuc
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Publication number: 20230372559Abstract: A luminaire includes one or more light emitting diodes (LEDs) and a beam-spreading total internal reflection (TIR) optic optically coupled with the one or more LEDs and configured to spread light output by the one or more LEDs. The beam-spreading TIR optic includes a base and an apex and a tapered sidewall extending from a perimeter of the base to the apex, and the one or more LEDs are optically coupled into the base. There may be N LEDs where N is an integer greater than or equal to two, and the beam-spreading TIR optic may further include N optical condensers connected to the base, with each LED optically coupled into the base by a corresponding optical condenser. The luminaire may further include peripheral white LEDs disposed around the beam-spreading TIR optic, which are not optically coupled with the beam-spreading TIR optic. A surrounding annular reflector may further be provided.Type: ApplicationFiled: September 10, 2021Publication date: November 23, 2023Applicant: CURRENT LIGHTING SOLUTIONS, LLCInventors: Mark E. Kaminski, Steve Germain, Beniot Essiambre, Yaseen Waheed
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Publication number: 20230248862Abstract: A disinfection system includes one or more light sources configured to emit ultraviolet light effective for inactivating pathogens in an environment for human occupancy, and one or more occupancy sensors configured to acquire data indicative of occupancy of the environment for human occupancy. Intensity of the ultraviolet light emitted by the one or more light sources is controlled based on the data indicative of occupancy of the environment acquired by the one or more occupancy sensors. In another embodiment, a light source for disinfection includes an intensity setting input disposed on the light source. The intensity setting input is operative to set an intensity of light emitted by light emitting elements of the light source. The light source has no other control besides the intensity setting input.Type: ApplicationFiled: November 12, 2020Publication date: August 10, 2023Applicant: Current Lighting Solutions, LLCInventors: Kevin J. Benner, Gary R. Allen, Stephen P. Glaudel
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Patent number: 11702348Abstract: A potassium hexafluoromanganate (K2MnF6) composition includes no more than six parts per million of each of one or more Group 13 elements, no more than 520 parts per million of one or more alkaline earth metals, no more than fourteen parts per million of one or more transition metals, and/or no more than forty parts per million of calcium. A method for providing this composition, as well as lighting apparatuses, backlight units, and electronic devices including phosphors formed from the composition also are provided.Type: GrantFiled: August 19, 2016Date of Patent: July 18, 2023Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: William Winder Beers, James E. Murphy, John Matthew Root
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Patent number: 11704630Abstract: The disclosure relates to a life prediction system for a fan of a lamp. The system comprises a fan signal detecting module to detect at least one working parameter of the fan; and a micro control unit to receive the working current signal, the environment temperature signal and the working rotation speed signal of the fan. The detecting module comprises a current detecting unit to detect a working current of the fan and output a working current signal; a temperature detecting unit to detect a working environment temperature of the fan and output an environment temperature signal; and a rotation speed detecting unit to detect and output a working rotation speed signal of the fan. The micro control unit calculates a predicted residual life of the fan based on the received working current signal, the environment temperature signal, the working rotation speed signal, through the life model of the fan.Type: GrantFiled: December 10, 2018Date of Patent: July 18, 2023Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Min Fang, Zhu Mao, Yong Li, Qi Long, Shuyi Qin
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Patent number: 11666674Abstract: A lighting system includes a light source configured to generate light to inactivate one or more pathogens. The light includes an inactivating portion. In one embodiment, a method for inactivating one or more pathogens and optionally concurrently illuminating a room having one or more human occupants while the pathogens are inactivated is also provided. The method includes generating light from a light source to inactivate the one or more pathogens. The light is generated with an inactivating portion of the light.Type: GrantFiled: January 21, 2022Date of Patent: June 6, 2023Assignee: Current Lighting Solutions, LLCInventors: Thomas Clynne, Gary R. Allen, Kevin J. Benner, Kevin J. Vick, Erik L. Kvam
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Publication number: 20230122405Abstract: A luminaire is mechanically attached to a mounting structure, mounted and positioned to illuminate a space adjacent to the luminaire The luminaire comprises at least one light source mounted on a substrate, and a thermal bus transporting heat from the substrate to a heat sink that is veiled from view. The at least one light source and the substrate are exposed to, and illuminate, the space. Another disclosed luminaire includes LEDs and a fixture on which the LEDs are disposed. The fixture is configured to install onto a grid of a suspension ceiling by hooking or clamping onto the grid of the suspension ceiling with the LEDs disposed on the installed fixture facing downward from the suspension ceiling.Type: ApplicationFiled: March 24, 2021Publication date: April 20, 2023Applicant: CURRENT LIGHTING SOLUTIONS, LLCInventor: Gary R. Allen
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Patent number: 11555601Abstract: There are provided an apparatus for mounting a light source in a light fixture and method of assembly of the apparatus. For example, there is provided an apparatus for mounting a light source in a light fixture. The apparatus includes an adjustable fixture including a rail onto which the light source is disposed. The apparatus further includes a spacer disposed perpendicularly to the rail. The spacer also includes a fixture configured to lock the apparatus in a specified configuration that corresponds to a depth of a frame of the light fixture.Type: GrantFiled: August 27, 2019Date of Patent: January 17, 2023Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Brian Morgan Spahnie, Xin Wang
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Patent number: 11558949Abstract: Image data of a light source comprising a surface is obtained using an optical sensor. The surface includes a color band code comprising an array of color regions at least partially modifying visible light of the light source prior to the light impinging the optical sensor. One or more characteristics of the color band code are determined based on the image data that is obtained. Determining a unique identity of the light source based on the determined one or more characteristics of the color band code is performed, or determining a location within a structure associated with the light source based on the determined one or more characteristics of the color band code is performed.Type: GrantFiled: October 25, 2019Date of Patent: January 17, 2023Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventor: Glenn Howard Kuenzler
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Patent number: 11541136Abstract: A lighting system includes a light source configured to generate light to inactivate one or more pathogens. The light includes an inactivating portion having wavelengths in a range of 280 to 380 nanometers.Type: GrantFiled: September 21, 2020Date of Patent: January 3, 2023Assignee: Current Lighting Solutions, LLCInventors: Thomas Clynne, Gary R. Allen, Kevin J. Benner, Kevin J. Vick, Erik L. Kvam
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Publication number: 20220395593Abstract: An irradiation method includes irradiating an environment with light using one or more one ceiling-mounted light sources, where each ceiling-mounted light source has an optical axis oriented vertically downward, and wherein each ceiling-mounted light source emits a light distribution having more angle-integrated intensity in a higher angular range relative to the optical axis of the ceiling-mounted light source than in a lower angular range relative to the optical axis of the ceiling-mounted light source. A ceiling-mounted light source may include a support structure, one or more light emitters disposed on a surface of the support structure, and a reflector with a funnel-shaped reflective surface facing the support structure and expanding with increasing distance from the support structure along the optical axis. The light emitters may be ultraviolet (UV) light emitters whereby the light source is a UV ceiling-mounted light source.Type: ApplicationFiled: June 14, 2021Publication date: December 15, 2022Applicant: CURRENT LIGHTING SOLUTIONS, LLCInventors: Gary R. Allen, Mark E. Kaminski, Kevin J. Benner
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Patent number: 11528452Abstract: A method and system, the method including transmitting a unique identifier of at least one radio frequency (RF) transmitter to a device in a vicinity of the RF transmitter; acquiring images of objects by a vision system, the vision system comprising at least one image capturing device and an image processing unit to determine objects in the images acquired by the image capturing device; determining, by a controller, a location of the device based on, at least in part, the unique identifier of one of the at least one RF transmitters; and determining, by the controller, a precise location of the device based on a correlation between the location of the device determined based on the unique identifier and the objects captured in the images acquired by the image capturing device.Type: GrantFiled: December 29, 2015Date of Patent: December 13, 2022Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Gábor Törös, Tamás Varjasi, István Maros, Roland Bátai
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Patent number: 11528791Abstract: A driving circuit is provided in this present disclosure, the driving circuit includes a voltage input module, a quick start module and a control module. The voltage input module includes a first input terminal and a second input terminal and is configured to receive an alternating current voltage and convert the alternating current voltage into a direct current voltage. The quick start module is coupled to the voltage input module and configured to receive the direct current voltage and convert the direct current voltage into a startup voltage. The control module is coupled to the quick start module and configured to receive the startup voltage and control a load, wherein the quick start module comprises a first resistor and a second resistor connected in series and is coupled between the first input terminal and the control module.Type: GrantFiled: September 19, 2019Date of Patent: December 13, 2022Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: Zhu Mao, Min Fang, Zhangji Zhou, Shuyi Qin, Bo Zhang, Fanbin Wang
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Patent number: 11477945Abstract: A lighting device is presented. The lighting device includes an LED light source; and a red/far-red emitting phosphor radiationally coupled to the LED light source, wherein the red/far-red emitting phosphor comprises a host material activated with an activator ion, and wherein the activator ion comprises at least one of Sm2+ and Mn2+. Numerous other aspects are provided.Type: GrantFiled: March 12, 2020Date of Patent: October 25, 2022Assignee: CURRENT LIGHTING SOLUTIONS, LLCInventors: William Winder Beers, William Erwin Cohen, Alok Srivastava