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: 20220189139
    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: Application
    Filed: December 22, 2021
    Publication date: June 16, 2022
    Inventors: Benjamin James Harrison, Shruti Koparkar, Mark Reynoso, Paul Pickard, Raghuram L.V. Petluri, Gary Vick, Andrew Villegas
  • Publication number: 20220180803
    Abstract: Bioactive display systems for displaying digital content. The display systems have one or more LED-based lighting channels adapted to generate one or more of a long red near infrared (LRNE) red light, a circadian-inducing blue light output in first operational mode and a less-circadian-inducing blue light output in a second operational mode. The bioactive lighting 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 display systems described herein.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 9, 2022
    Inventors: Raghuram L. V. Petluri, Paul Kenneth PICKARD, Benjamin Harrison
  • Publication number: 20220169924
    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: November 8, 2021
    Publication date: June 2, 2022
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Patent number: 11328500
    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: May 10, 2022
    Assignee: KORRUS, INC.
    Inventors: Benjamin James Harrison, Shruti Koparkar, Mark Reynoso, Paul Pickard, Raghuram L. V. Petluri, Gary Vick, Andrew Villegas
  • Patent number: 11308849
    Abstract: Display systems for displaying digital content. The display 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 display 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: Grant
    Filed: October 13, 2020
    Date of Patent: April 19, 2022
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard, Benjamin Harrison, Shruti Koparkar
  • Patent number: 11306897
    Abstract: Lighting system including bowl reflector, visible-light source, central reflector, and optically-transparent body. Bowl reflector has central axis, and rim defining emission aperture, and first visible-light-reflective surface defining portion of cavity in bowl reflector. First visible-light-reflective surface includes parabolic surface. Visible-light source is located in cavity and configured for generating visible-light emissions from semiconductor light-emitting device. Central reflector includes second visible-light-reflective surface, having convex flared funnel shape and having first peak facing toward visible-light source. Optically-transparent body has first base being spaced apart from second base and having side wall extending between first and second bases. Concave flared funnel-shaped surface of second base faces toward convex flared funnel-shaped second visible-light reflective surface of central reflector.
    Type: Grant
    Filed: October 11, 2020
    Date of Patent: April 19, 2022
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Chris P. Latsis, Elizabeth Rodgers, Paul Pickard, Sana Ashraf, Xin Zhang, Richard Wu, Raghuram L. V. Petluri
  • Patent number: 11287692
    Abstract: A backlit display for emitting a display light, said display comprising a backlight configured to emit a high circadian stimulation backlight spectrum having a spectral power distribution (SPD) with an overall power, and a blue range from 440-490 nm with a blue SPD power of at least 25% of said overall power, a pixel array comprising at least three filters, said at least three filter comprising at least a first filter, a second filter, and third filter, forming at least three sub-pixels, wherein said backlight is configured to backlight said pixel array, and wherein said display light has a gamut having an sRGB coverage of at least 85%.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 29, 2022
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Paul Kenneth Pickard, Sina Afshari, Raghuram L. V. Petluri
  • Publication number: 20220086979
    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: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard
  • Publication number: 20220068893
    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: July 12, 2021
    Publication date: March 3, 2022
    Inventors: RAGHURAM L.V. PETLURI, PAUL KENNETH PICKARD
  • Patent number: 11265983
    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: Grant
    Filed: July 13, 2020
    Date of Patent: March 1, 2022
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Patent number: 11246198
    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: July 13, 2020
    Date of Patent: February 8, 2022
    Assignee: ECOSENSE LIGHTING, INC.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Publication number: 20220036793
    Abstract: Bioactive display systems for displaying digital content. The display systems have one or more LED-based lighting channels adapted to generate one or more of a long red near infrared (LRNE) red light, a circadian-inducing blue light output in first operational mode and a less-circadian-inducing blue light output in a second operational mode. The bioactive lighting 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 display systems described herein.
    Type: Application
    Filed: May 10, 2021
    Publication date: February 3, 2022
    Inventors: Raghuram L. V. Petluri, Paul Kenneth PICKARD, Benjamin Harrison
  • Patent number: 11232321
    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: December 4, 2019
    Date of Patent: January 25, 2022
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Benjamin James Harrison, Shruti Koparkar, Mark Reynoso, Paul Pickard, Raghuram L. V. Petluri, Gary Vick, Andrew Villegas
  • Publication number: 20220018502
    Abstract: An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of luminescence materials provide a predetermined range of illumination wavelengths in the output. The remote light converting appliances may be provided as frustoconical elements directly adjacent to the LEDs within frustoconical reflective cavities. An index matching compound can be disposed between the light converting appliances and the associated LEDs.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 20, 2022
    Inventors: RAGHURAM L.V. PETLURI, PAUL KENNETH PICKARD, ROBERT FLETCHER
  • Patent number: 11226074
    Abstract: An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote phosphor light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of phosphors provide a predetermined range of illumination wavelengths in the output.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: January 18, 2022
    Assignee: ECOSENSE LIGHTING INC.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard, Robert Fletcher
  • Publication number: 20220001200
    Abstract: The present disclosure provides lighting systems, which may be semiconductor light emitting devices, with two or more of blue, red and/or LRNE, 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.
    Type: Application
    Filed: May 10, 2021
    Publication date: January 6, 2022
    Inventors: Raghuram L. V. Petluri, Paul Kenneth PICKARD, Benjamin Harrison
  • Publication number: 20220005404
    Abstract: Panel systems for displaying digital content. Bioactive LRNE and CSE emissions are provide in several operational modes. The panels system may have several modes associated with each panel. The method of delivering a specific aliquot of bioactive light via a panel system is disclosed. The control system can use sensor input to adjust the type and amount of bioactive light provided.
    Type: Application
    Filed: May 10, 2021
    Publication date: January 6, 2022
    Inventors: Raghuram L. V. Petluri, Paul Kenneth PICKARD, Benjamin Harrison
  • Publication number: 20210402210
    Abstract: The present disclosure provides bioactive lighting systems suitable for generating white light. The lighting systems has lighting channels configured to produce white light having a color point and a spectral power distribution. The combination of emissions from selected channels results in white light having adjusted color points. The system is controlled to selectively increase or decrease CSE and to selectively provide LRNE.
    Type: Application
    Filed: May 10, 2021
    Publication date: December 30, 2021
    Inventors: Raghuram L. V. Petluri, Paul Kenneth PICKARD, Benjamin Harrison
  • Patent number: 11212889
    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: Grant
    Filed: June 3, 2020
    Date of Patent: December 28, 2021
    Assignee: Ecosense Lighting Inc.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Patent number: 11198020
    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: Grant
    Filed: May 28, 2020
    Date of Patent: December 14, 2021
    Assignee: Ecosense Lighting Inc.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard