Patents by Inventor Emil Radkov

Emil Radkov 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).

  • Patent number: 10632214
    Abstract: A light source for emitting emitted light having an SPD comprising: (a) a plurality of light emitters including at least one violet solid-state emitter; (b) at least one phosphor; wherein said light emitters and said at least one phosphor being configured such that: at least 25% of the power within the SPD is in the range 390-420 nm, and the emitted light has a chromaticity which is within a Duv distance of less than 5 points from the Planckian locus.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 28, 2020
    Assignee: SORAA, INC.
    Inventors: Aurelien J. F. David, Philip Barton, Emil Radkov
  • Publication number: 20190353839
    Abstract: Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 21, 2019
    Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
  • Patent number: 10324250
    Abstract: Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: June 18, 2019
    Assignee: SORAA, INC.
    Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
  • Publication number: 20180149802
    Abstract: Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.
    Type: Application
    Filed: January 23, 2018
    Publication date: May 31, 2018
    Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
  • Patent number: 9944519
    Abstract: A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light. The enclosure (22) has a shape of a standard incandescent lamp.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: April 17, 2018
    Assignee: GE Lighting Solutions, LLC
    Inventors: Christopher L. Bohler, Boris Kolodin, Emil Radkov, Srinath K. Aanegola, Stanton E. Weaver, Jr., James T. Petroski, Zena Brown
  • Patent number: 9915775
    Abstract: Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: March 13, 2018
    Assignee: Soraa, Inc.
    Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
  • Patent number: 9902811
    Abstract: This invention relates to a curable silicone composition comprising: (A) a straight-chain organopolysiloxane having at least two alkenyl groups in a molecule; (B) an organopolysiloxane represented by the following average unit formula: (R1SiO3/2)a(R12SiO2/2)b(R13SiO1/2)c(SiO4/2)d(XO1/2)e wherein, R1 each independently represent an alkyl group having from 1 to 12 carbons, an alkenyl group having from 2 to 12 carbons, an aryl group having from 6 to 20 carbons, an aralkyl group having from 7 to 20 carbons, or a group in which some or all of the hydrogen atoms of these groups are substituted with halogen atoms, with the proviso that at least two R1 in a molecule are the alkenyl groups, X is a hydrogen atom or an alkyl group, a is a number from 0 to 0.3, b is 0 or a positive number, c is a positive number, d is a positive number, e is a number from 0 to 0.4, a+b+c+d=1, c/d is a number from 0 to 10, and b/d is a number from 0 to 0.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: February 27, 2018
    Assignees: DOW CORNING TORAY CO. LTD., DOW CORNING CORPORATION
    Inventors: Stanton James Dent, Tomohiro Iimura, Yusuke Miyamoto, Yoshitsugu Morita, Fumito Nishida, Emil Radkov, Jacob William Steinbrecher, Hiroaki Yoshida, Makoto Yoshitake
  • Patent number: 9854749
    Abstract: Embodiments described herein provide systems and methods for promoting plant growth that combine beam angle control with spectral control. In one embodiment, an optical device can be configured to emit multiple colors of light at particular wavelengths. The optical device may also be configured to generate an emission spectrum with multiple peaks. The spectrum can be selected based on stimulating biological processes of a plant.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: January 2, 2018
    Assignee: Illumitex, Inc.
    Inventors: Nicholas Peter Klase, Dung T. Duong, Emil Radkov, Paul N. Winberg
  • Publication number: 20170368210
    Abstract: A light source for emitting emitted light having an SPD comprising: (a) a plurality of light emitters including at least one violet solid-state emitter; (b) at least one phosphor; wherein said light emitters and said at least one phosphor being configured such that: at least 25% of the power within the SPD is in the range 390-420 nm, and the emitted light has a chromaticity which is within a Duv distance of less than 5 points from the Planckian locus.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 28, 2017
    Inventors: AURELIEN J.F. DAVID, PHILIP BARTON, EMIL RADKOV
  • Patent number: 9671085
    Abstract: A reflector for reflecting light emitted by an LED light source and a method of forming the same are provided. The reflector has a unitary silicone body having a first end and a second end opposite the first end. The unitary silicone body has an inner surface extending between the first and second ends. The inner surface defines a first aperture at the first end for receiving the LED light source. The inner surface defines a second aperture at the second end for permitting light emitted from the LED light source to escape the unitary silicone body. The inner surface has a maximum inner diameter between the first and second ends. The inner surface has an inner diameter at the second end that is less than the maximum inner diameter.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: June 6, 2017
    Assignee: DOW CORNING CORPORATION
    Inventors: Harold W. Brunt, Jr., Emil Radkov, Wei Rong, Jacob William Steinbrecher, Michael Raymond Strong
  • Publication number: 20160273717
    Abstract: Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.
    Type: Application
    Filed: January 14, 2016
    Publication date: September 22, 2016
    Applicant: Soraa, Inc.
    Inventors: Michael R. Krames, Aurelien J.F. David, Emil Radkov, Willem Smitt
  • Publication number: 20150376344
    Abstract: This invention relates to a curable silicone composition comprising: (A) a straight-chain organopolysiloxane having at least two alkenyl groups in a molecule; (B) an organopolysiloxane represented by the following average unit formula: (R1SiO3/2)a (R12SiO2/2)b(R13SiO1/2)c(SiO4/2)d(XO1/2)e wherein, R1 each independently represent an alkyl group having from 1 to 12 carbons, an alkenyl group having from 2 to 12 carbons, an aryl group having from 6 to 20 carbons, an aralkyl group having from 7 to 20 carbons, or a group in which some or all of the hydrogen atoms of these groups are substituted with halogen atoms, with the proviso that at least two R1 in a molecule are the alkenyl groups, X is a hydrogen atom or an alkyl group, a is a number from 0 to 0.3, b is 0 or a positive number, c is a positive number, d is a positive number, e is a number from 0 to 0.4, a+b+c+d=1, c/d is a number from 0 to 10, and b/d is a number from 0 to 0.
    Type: Application
    Filed: February 21, 2014
    Publication date: December 31, 2015
    Inventors: Stanton James Dent, Tomohiro Iimura, Yusuke Miyamoto, Yoshitsugu Morita, Fumito Nishida, Emil Radkov, Jacob William Steinbrecher, Hiroaki Yoshida, Makoto Yoshitake
  • Publication number: 20150305252
    Abstract: Embodiments described herein provide systems and methods for promoting plant growth that combine beam angle control with spectral control. In one embodiment, an optical device can be configured to emit multiple colors of light at particular wavelengths. The optical device may also be configured to generate an emission spectrum with multiple peaks. The spectrum can be selected based on stimulating biological processes of a plant.
    Type: Application
    Filed: May 7, 2015
    Publication date: October 29, 2015
    Inventors: Nicholas Peter Klase, Dung T. Duong, Emil Radkov, Paul N. Winberg
  • Publication number: 20150300598
    Abstract: A reflector for reflecting light emitted by an LED light source and a method of forming the same are provided. The reflector has a unitary silicone body having a first end and a second end opposite the first end. The unitary silicone body has an inner surface extending between the first and second ends. The inner surface defines a first aperture at the first end for receiving the LED light source. The inner surface defines a second aperture at the second end for permitting light emitted from the LED light source to escape the unitary silicone body. The inner surface has a maximum inner diameter between the first and second ends. The inner surface has an inner diameter at the second end that is less than the maximum inner diameter.
    Type: Application
    Filed: February 19, 2015
    Publication date: October 22, 2015
    Inventors: Harold W. Brunt, JR., Emil Radkov, Wei Rong, Jacob William Steinbrecher, Michael Raymond Strong
  • Patent number: 9086211
    Abstract: Embodiments described herein provide optical systems that can mix colors to produce illumination patterns having a large area with uniform color. One embodiment of an optical system can include a set of optical units that each produces an illumination pattern with uniform color and intensity. The optical units are spaced so that the individual illumination patterns overlap to create an overall illumination pattern with an overlap area. In the overlap area, the colors emitted by the individual optical units mix to create a desired color. Embodiments of optical systems can provide beam control so that the optical units emit a high percentage of light in beam.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: July 21, 2015
    Assignee: Illumitex, Inc.
    Inventors: Dung T. Duong, Hyunchul Ko, Randall E. Johnson, Paul N. Winberg, Emil Radkov
  • Patent number: 9060468
    Abstract: Embodiments described herein provide systems and methods for promoting plant growth that combine beam angle control with spectral control. In one embodiment, an optical device can be configured to emit multiple colors of light at particular wavelengths. The optical device may also be configured to generate an emission spectrum with multiple peaks. The spectrum can be selected based on stimulating biological processes of a plant.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: June 23, 2015
    Assignee: ILLUMITEX, INC.
    Inventors: Nicholas Peter Klase, Dung T. Duong, Emil Radkov, Paul N. Winberg
  • Publication number: 20140104832
    Abstract: Embodiments described herein provide optical systems that can mix colors to produce illumination patterns having a large area with uniform color. One embodiment of an optical system can include a set of optical units that each produces an illumination pattern with uniform color and intensity. The optical units are spaced so that the individual illumination patterns overlap to create an overall illumination pattern with an overlap area. In the overlap area, the colors emitted by the individual optical units mix to create a desired color. Embodiments of optical systems can provide beam control so that the optical units emit a high percentage of light in beam.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 17, 2014
    Applicant: Illumitex, Inc.
    Inventors: Dung T. Duong, Hyunchul Ko, Randall E. Johnson, Paul N. Winberg, Emil Radkov
  • Patent number: 8585253
    Abstract: Embodiments described herein provide optical systems that can mix colors to produce illumination patterns having a large area with uniform color. One embodiment of an optical system can include a set of optical units that each produces an illumination pattern with uniform color and intensity. The optical units are spaced so that the individual illumination patterns overlap to create an overall illumination pattern with an overlap area. In the overlap area, the colors emitted by the individual optical units mix to create a desired color. Embodiments of optical systems can provide beam control so that the optical units emit a high percentage of light in beam.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: November 19, 2013
    Assignee: Illumitex, Inc.
    Inventors: Dung T. Duong, Hyunchul Ko, Randall E. Johnson, Paul N. Winberg, Emil Radkov
  • Patent number: 8519611
    Abstract: A white light hybrid illumination system including an amber LED, a red LED, and a phosphor converted LED such as a blue LED chip and a green phosphor, wherein a peak emission difference between the amber and red LED is at least 25 nm. This system provides higher color quality than prior devices due to its high luminous efficacy, high CRI over a wide CCT range, and better color control.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: August 27, 2013
    Assignee: GE Lighting Solutions, LLC
    Inventors: Emil Radkov, Anant Setlur, Srinath Aanegola
  • Patent number: D742267
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: November 3, 2015
    Assignee: DOW CORNING CORPORATION
    Inventors: Michael Raymond Strong, Harold W. Brunt, Jr., Wei Rong, Jacob William Steinbrecher, Emil Radkov