Patents by Inventor Raghuram L. V. Petluri

Raghuram L. V. Petluri 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).

  • Publication number: 20210136887
    Abstract: The present disclosure provides methods for generating tunable white light. The methods include using a plurality of LED strings to generate light with color points that fall within white, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Application
    Filed: September 15, 2020
    Publication date: May 6, 2021
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Publication number: 20210108134
    Abstract: Systems and methods to provide multiple channels of light to form a blended white light output, the systems and methods utilizing recipient luminophoric mediums to alter light provided by light emitting diodes. The predetermined blends of luminescent materials within the luminophoric mediums provide predetermined spectral power distributions in the white light output.
    Type: Application
    Filed: August 24, 2020
    Publication date: April 15, 2021
    Inventors: Raghuram L. V. PETLURI, Paul Kenneth PICKARD
  • Publication number: 20210092810
    Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within red, blue, and green color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. The systems can include an additional LED string configured for functional applications that includes a type of LED selected from 380-420 nm violet saturated LEDs, 200-280 nm UVC saturated LEDs, 850-940 nm near-IR saturated LEDs, 580-620 nm amber-orange/red saturated LEDs, and 460-490 nm long-blue saturated LEDs.
    Type: Application
    Filed: July 20, 2020
    Publication date: March 25, 2021
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard, Ihor Lys, Benjamin Harrison
  • Publication number: 20210068215
    Abstract: The present disclosure provides lighting systems suitable for generating white light. The lighting systems can have a first lighting channel configured to produce a first white light having a first color point and a first spectral power distribution, a second lighting channel configured to produce a second white light having a second color point and a second spectral power distribution, and a control system configured to independently change the intensity of each of the first lighting channel and the second lighting channel. The first lighting channels can have LEDs having an emission with a first peak wavelength of between about 440 nm and about 510 nm. The second lighting channels can have LEDs having an emission with a second peak wavelength of between about 380 nm and about 420 nm. The disclosure provides methods of generating white light using the lighting systems described.
    Type: Application
    Filed: July 13, 2020
    Publication date: March 4, 2021
    Inventors: RAGHURAM L.V. PETLURI, PAUL KENNETH PICKARD
  • Publication number: 20210060353
    Abstract: Panel systems for displaying digital content. The panel systems have one or more LED-based lighting channels adapted to generate a circadian-inducing blue light output in first operational mode and a less-circadian-inducing blue light output in a second operational mode. The circadian-inducing blue light can have a first circadian-stimulating energy characteristic related to the associated first spectral power distributions of light generated in the first operational mode, and the non-circadian-inducing blue light can have a second circadian-stimulating energy characteristic related to the associated second spectral power distribution of light generated in the second operational mode. Disclosure methods of generating digital display content with the panel systems described herein. The methods can generate a circadian-inducing blue light output in first operational mode and a less-circadian-inducing blue light output in a second operational mode.
    Type: Application
    Filed: July 13, 2020
    Publication date: March 4, 2021
    Inventors: RAGHURAM L. V. PETLURI, PAUL KENNETH PICKARD
  • Publication number: 20210068221
    Abstract: The present disclosure provides methods for generating tunable white light. The methods include using a plurality of LED strings to generate light with color points that fall within white, red, and yellow/green color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Application
    Filed: July 13, 2020
    Publication date: March 4, 2021
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Publication number: 20210068222
    Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within red, blue, green, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. Methods of generating white light by combining light generated by red, blue, green, arid cyan color channels. Methods of generating white light points at substantially the same 1931 CIE chromaticity diagram color coordinates having different EML.
    Type: Application
    Filed: July 13, 2020
    Publication date: March 4, 2021
    Inventors: RAGHURAM L.V. PETLURI, PAUL KENNETH PICKARD
  • Publication number: 20210068224
    Abstract: The present disclosure provides lighting systems, which may be semiconductor light emitting devices, with two or more of blue, red, short-blue-pumped cyan, long-blue-pumped cyan, yellow, and violet channels. The lighting systems can have a plurality of operational modes that provide different biological effects while having good color rendering capability. The yellow and violet channels can include violet LEDs and be used in operational modes that provide white light with lower EML values relative to operational modes using three or more of the blue, red, short-blue-pumped cyan, and long-blue-pumped cyan color channels. The yellow, red, and violet channels can be used in an operational mode to provide low EML values while providing white light between about 1800K and about 3500K CCT.
    Type: Application
    Filed: July 13, 2020
    Publication date: March 4, 2021
    Inventors: RAGHURAM L.V. PETLURI, PAUL KENNETH PICKARD
  • Publication number: 20210068223
    Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within red, blue, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Application
    Filed: July 13, 2020
    Publication date: March 4, 2021
    Inventors: RAGHURAM L.V. PETLURI, PAUL KENNETH PICKARD
  • Publication number: 20210045207
    Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Application
    Filed: May 28, 2020
    Publication date: February 11, 2021
    Applicant: Ecosense Lighting Inc.
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Patent number: 10912172
    Abstract: A system for generating tunable white light, comprising a plurality of LED strings that generate light with color points that fall within red, blue, and green color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 2, 2021
    Assignee: EcoSense Lighting Inc.
    Inventors: Raghuram L. V Petluri, Paul Kenneth Pickard
  • Publication number: 20210022221
    Abstract: The present disclosure provides methods for generating tunable white light with controllable circadian energy performance. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. Different light emitting modes can be selected that utilize different combinations of the plurality of LED strings in order to tune the generated white light. One or more of the LED strings can have ultraviolet or violet LEDs.
    Type: Application
    Filed: May 28, 2020
    Publication date: January 21, 2021
    Applicant: Ecosense Lighting Inc.
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Publication number: 20210018151
    Abstract: The present disclosure provides methods for generating white light. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Application
    Filed: June 3, 2020
    Publication date: January 21, 2021
    Applicant: Ecosense Lighting Inc.
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Publication number: 20210018150
    Abstract: The present disclosure provides methods for generating white light. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Application
    Filed: June 3, 2020
    Publication date: January 21, 2021
    Applicant: Ecosense Lighting Inc.
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Publication number: 20210022220
    Abstract: The present disclosure provides methods for generating tunable white light with controllable circadian energy performance. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. Different light emitting modes can be selected that utilize different combinations of the plurality of LED strings in order to tune the generated white light.
    Type: Application
    Filed: May 28, 2020
    Publication date: January 21, 2021
    Applicant: Ecosense Lighting Inc.
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Patent number: 10885377
    Abstract: A platform for design of a lighting installation generally includes an automated search engine for retrieving and storing a plurality of lighting objects in a lighting object library and a lighting design environment providing a visual representation of a lighting space containing lighting space objects and lighting objects. The visual representation is based on properties of the lighting space objects and lighting objects obtained from the lighting object library. A plurality of aesthetic filters is configured to permit a designer in a design environment to adjust parameters of the plurality of lighting objects handled in the design environment to provide a desired collective lighting effect using the plurality of lighting objects.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: January 5, 2021
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Benjamin James Harrison, Shruti Koparkar, Mark Reynoso, Paul Pickard, Raghuram L. V. Petluri, Gary Vick, Andrew Villegas
  • Patent number: 10880962
    Abstract: Lighting system including first-, second-, and third-light sources each having semiconductor light-emitting device. First source includes lumiphor; and is configured for emitting first light source emissions having first color point between isotherms of CCTs of about 4800K-2500K; and is located within about 0.006 delta(uv) away from Planckian—black-body locus of CIE 1931 XY chromaticity diagram. Second light source is configured for emitting second light source emissions having second color point between isotherms of CCTs of about 2900K-1700K. Third light source is configured for emitting third light source emissions having: third color point between line-of-purples and isotherm of CCT of about 1500K; and dominant- or peak-wavelength between about 590-700 nanometers. Lighting system is configured for forming combined light emissions and causing combined color points to remain below Planckian—black-body locus by about 0.001-0.009 delta(uv) throughout light brightening/dimming curve. Related processes.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: December 29, 2020
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Raghuram L. V. Petluri, Paul Pickard
  • Patent number: 10827580
    Abstract: The present disclosure provides lighting systems suitable for generating white light. The lighting systems can have a first lighting channel configured to produce a first white light having a first color point and a first spectral power distribution, a second lighting channel configured to produce a second white light having a second color point and a second spectral power distribution, and a control system configured to independently change the intensity of each of the first lighting channel and the second lighting channel. The first lighting channels can have LEDs having an emission with a first peak wavelength of between about 440 nm and about 510 nm. The second lighting channels can have LEDs having an emission with a second peak wavelength of between about 380 nm and about 420 nm. The disclosure provides methods of generating white light using the lighting systems described.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: November 3, 2020
    Assignee: EcoSense Lighting, Inc.
    Inventors: Raghuram L. V Petluri, Paul Kenneth Pickard
  • Patent number: 10817745
    Abstract: A platform for design of a lighting installation generally includes an automated search engine for retrieving and storing a plurality of lighting objects in a lighting object library and a lighting design environment providing a visual representation of a lighting space containing lighting space objects and lighting objects. The visual representation is based on properties of the lighting space objects and lighting objects obtained from the lighting object library. A plurality of aesthetic filters is configured to permit a designer in a design environment to adjust parameters of the plurality of lighting objects handled in the design environment to provide a desired collective lighting effect using the plurality of lighting objects.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 27, 2020
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Benjamin James Harrison, Shruti Koparkar, Mark Reynoso, Paul Pickard, Raghuram L. V. Petluri, Gary Vick, Andrew Villegas
  • Patent number: 10817746
    Abstract: A platform for design of a lighting installation generally includes an automated search engine for retrieving and storing a plurality of lighting objects in a lighting object library and a lighting design environment providing a visual representation of a lighting space containing lighting space objects and lighting objects. The visual representation is based on properties of the lighting space objects and lighting objects obtained from the lighting object library. A plurality of aesthetic filters is configured to permit a designer in a design environment to adjust parameters of the plurality of lighting objects handled in the design environment to provide a desired collective lighting effect using the plurality of lighting objects.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 27, 2020
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Benjamin James Harrison, Shruti Koparkar, Mark Reynoso, Paul Pickard, Raghuram L. V. Petluri, Gary Vick, Andrew Villegas