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).
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Publication number: 20240216558Abstract: 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: ApplicationFiled: August 7, 2023Publication date: July 4, 2024Inventors: AURELIEN J.F. DAVID, PHILIP BARTON, EMIL RADKOV
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Publication number: 20230330383Abstract: 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: ApplicationFiled: November 28, 2022Publication date: October 19, 2023Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Patent number: 11717581Abstract: 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: GrantFiled: January 31, 2022Date of Patent: August 8, 2023Assignee: KORRUS, INC.Inventors: Aurelien J. F. David, Philip Barton, Emil Radkov
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Patent number: 11511071Abstract: 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: GrantFiled: March 22, 2021Date of Patent: November 29, 2022Assignee: KORRUS, INC.Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Publication number: 20220265872Abstract: 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: ApplicationFiled: January 31, 2022Publication date: August 25, 2022Inventors: AURELIEN J.F. DAVID, PHILIP BARTON, EMIL RADKOV
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Patent number: 11235077Abstract: 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: GrantFiled: April 27, 2020Date of Patent: February 1, 2022Assignee: Ecosense Lighting Inc.Inventors: Aurelien J. F. David, Philip Barton, Emil Radkov
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Publication number: 20210402132Abstract: 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: ApplicationFiled: March 22, 2021Publication date: December 30, 2021Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Patent number: 10955608Abstract: 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: GrantFiled: April 29, 2019Date of Patent: March 23, 2021Assignee: ECOSENSE LIGHTING, INC.Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Publication number: 20200390915Abstract: 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: ApplicationFiled: April 27, 2020Publication date: December 17, 2020Inventors: AURELIEN J.F. DAVID, PHILIP BARTON, EMIL RADKOV
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Patent number: 10632214Abstract: 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: GrantFiled: June 26, 2017Date of Patent: April 28, 2020Assignee: SORAA, INC.Inventors: Aurelien J. F. David, Philip Barton, Emil Radkov
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Publication number: 20190353839Abstract: 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: ApplicationFiled: April 29, 2019Publication date: November 21, 2019Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Patent number: 10324250Abstract: 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: GrantFiled: January 23, 2018Date of Patent: June 18, 2019Assignee: SORAA, INC.Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Publication number: 20180149802Abstract: 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: ApplicationFiled: January 23, 2018Publication date: May 31, 2018Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Patent number: 9944519Abstract: 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: GrantFiled: March 20, 2012Date of Patent: April 17, 2018Assignee: GE Lighting Solutions, LLCInventors: Christopher L. Bohler, Boris Kolodin, Emil Radkov, Srinath K. Aanegola, Stanton E. Weaver, Jr., James T. Petroski, Zena Brown
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Patent number: 9915775Abstract: 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: GrantFiled: January 14, 2016Date of Patent: March 13, 2018Assignee: Soraa, Inc.Inventors: Michael R. Krames, Aurelien J. F. David, Emil Radkov, Willem Smitt
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Patent number: 9902811Abstract: 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: GrantFiled: February 21, 2014Date of Patent: February 27, 2018Assignees: DOW CORNING TORAY CO. LTD., DOW CORNING CORPORATIONInventors: Stanton James Dent, Tomohiro Iimura, Yusuke Miyamoto, Yoshitsugu Morita, Fumito Nishida, Emil Radkov, Jacob William Steinbrecher, Hiroaki Yoshida, Makoto Yoshitake
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Patent number: 9854749Abstract: 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: GrantFiled: May 7, 2015Date of Patent: January 2, 2018Assignee: Illumitex, Inc.Inventors: Nicholas Peter Klase, Dung T. Duong, Emil Radkov, Paul N. Winberg
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Publication number: 20170368210Abstract: 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: ApplicationFiled: June 26, 2017Publication date: December 28, 2017Inventors: AURELIEN J.F. DAVID, PHILIP BARTON, EMIL RADKOV
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Patent number: 9671085Abstract: 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: GrantFiled: February 19, 2015Date of Patent: June 6, 2017Assignee: DOW CORNING CORPORATIONInventors: Harold W. Brunt, Jr., Emil Radkov, Wei Rong, Jacob William Steinbrecher, Michael Raymond Strong
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Publication number: 20160273717Abstract: 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: ApplicationFiled: January 14, 2016Publication date: September 22, 2016Applicant: Soraa, Inc.Inventors: Michael R. Krames, Aurelien J.F. David, Emil Radkov, Willem Smitt