Patents by Inventor Darrin Leonhardt

Darrin Leonhardt 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: 10983000
    Abstract: A system for measuring light in a tube is provided. The system includes a tube, a light collecting probe configured to absorb light within the tube, a data acquisition system for determining a level of light associated with light absorbed by the light collecting probe, and a motion system for moving the light collecting probe within the tube.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: April 20, 2021
    Assignees: Heraeus Noblelight America LLC, Heraeus Noblelight GmbH
    Inventors: Brett Skinner, William C. Harper, Darrin Leonhardt, Ralf Dreiskemper
  • Patent number: 10520251
    Abstract: A UV light curing system is provided. The UV light curing system includes: a UV light source; a primary reflector for reflecting light emitted by the UV light source in a direction of an enclosure, the enclosure at least partially surrounding an object of interest; and a secondary reflector on an opposite side of the enclosure with respect to the primary reflector, the secondary reflector being positioned along a portion of a length of the enclosure, the secondary reflector surrounding at least 40% of the enclosure at the portion of the length of the enclosure.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: December 31, 2019
    Assignee: Heraeus Noblelight America LLC
    Inventors: Darrin Leonhardt, William Curtis Harper
  • Patent number: 10497556
    Abstract: An ultraviolet lamp system is provided. The ultraviolet lamp system includes: (a) a bulb; (b) at least one magnetron configured to emit microwave energy configured to be received by the bulb; and (c) a power supply configured to provide electrical energy to the at least one magnetron, the power supply being adapted to modulate the electrical energy provided to the at least one magnetron such that light output from the bulb is more uniform in at least one of intensity and spectral output.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 3, 2019
    Assignee: Heraeus Noblelight America LLC
    Inventors: Brett Skinner, Darrin Leonhardt, Charles H. Wood
  • Patent number: 10458626
    Abstract: A light system is provided. The light system includes: (a) a lamp head assembly, the lamp head assembly including (i) driver circuits, and (ii) a cooling system; and (b) a replaceable assembly connected to the lamp head assembly, the replaceable assembly including (i) a plurality of light producing elements, (ii) a cooling structure for receiving a cooling fluid from the cooling system, the plurality of light producing elements being supported by the cooling structure, and (iii) a reflector for receiving light from the plurality of light producing elements. The replaceable assembly is separable, as a single assembly, from the lamp head assembly.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: October 29, 2019
    Assignee: Heraeus Noblelight America LLC
    Inventors: William E. Johnson, III, Ruben C. Manikkam, Mahmood Gharagozloo, Darrin Leonhardt
  • Publication number: 20190193113
    Abstract: An irradiation system is provided. The irradiation system includes a plurality of LED arrays, each of the LED arrays including a plurality of LED light producing elements. The irradiation system also includes a target area, the target area being adapted to receive light energy from each of the plurality of LED arrays. The plurality of LED arrays are positioned with respect to one another such that they surround the target area of the irradiation system.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 27, 2019
    Inventors: William E. Johnson, III, Darrin Leonhardt, Ruben C. Manikkam, David A. Sprankle, Mahmood Gharagozloo, Brett Skinner, Michael K. West, Brad Cohen, Jochen Grade
  • Patent number: 10330304
    Abstract: An ultraviolet LED array is provided. The ultraviolet LED array includes a heatsink. The heatsink includes (i) a base heatsink element, and (ii) a thick film layer applied to the base heatsink element. The ultraviolet LED array also includes a plurality of ultraviolet LED elements coupled directly to the thick film layer of the heatsink.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: June 25, 2019
    Assignee: Heraeus Noblelight America LLC
    Inventors: William E. Johnson, III, Darrin Leonhardt, Mahmood Gharagozloo
  • Patent number: 10308550
    Abstract: A device for applying radiation to a target is provided. The device includes a radiation emitter to emit electromagnetic radiation having a peak emission wavelength in the range from 10 nm-1 mm, and a first reflector that extends in a length direction with a concave cross section. The first reflector defines a cavity area having a perimeter, and includes an inward facing reflective border for at least 50% of the perimeter of the cavity area. Radiation is provided to the cavity area with an intensity distribution I and a maximum intensity Imax. The cavity area includes a focal area defined by all points at which a normalized intensity I/Imax is greater than 0.2. A width of the focal area is 0.0001-0.5 times a width of the cavity area.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: June 4, 2019
    Assignees: Heraeus Noblelight America LLC, Heraeus Noblelight GmbH
    Inventors: Johanna Heck, Darrin Leonhardt, David Sprankle, Michael Peil, Jörg Diettrich
  • Publication number: 20190139753
    Abstract: An ultraviolet lamp system is provided. The ultraviolet lamp system includes: (a) a bulb; (b) at least one magnetron configured to emit microwave energy configured to be received by the bulb; and (c) a power supply configured to provide electrical energy to the at least one magnetron, the power supply being adapted to modulate the electrical energy provided to the at least one magnetron such that light output from the bulb is more uniform in at least one of intensity and spectral output.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 9, 2019
    Inventors: Brett Skinner, Darrin Leonhardt, Charles H. Wood
  • Publication number: 20190107435
    Abstract: A system for measuring light in a tube is provided. The system includes a tube, a light collecting probe configured to absorb light within the tube, a data acquisition system for determining a level of light associated with light absorbed by the light collecting probe, and a motion system for moving the light collecting probe within the tube.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 11, 2019
    Inventors: Brett Skinner, William C. Harper, Darrin Leonhardt, Ralf Dreiskemper
  • Publication number: 20180288841
    Abstract: A lighting system is provided. The lighting system includes: a plurality of light producing elements, the plurality of light producing elements being arranged in an array including a plurality of branches connected in an electrically parallel configuration with respect to one another, each of the plurality of branches including a plurality of the light producing elements arranged in an electrically series configuration with respect to one another; a plurality of driver circuits, each of the plurality of driver circuits providing electrical energy to a respective one of the plurality of branches; and a processor for detecting failure of one or more of the light producing elements, and adjusting electrical energy provided by at least one of the plurality of driver circuits based on the detection of the failure of the one or more light producing elements.
    Type: Application
    Filed: March 26, 2018
    Publication date: October 4, 2018
    Inventors: Mahmood Gharagozloo, Darrin Leonhardt, Yixin Yang, William E. Johnson, III
  • Publication number: 20180257983
    Abstract: A device for applying radiation to a target is provided. The device includes a radiation emitter to emit electromagnetic radiation having a peak emission wavelength in the range from 10 nm-1 mm, and a first reflector that extends in a length direction with a concave cross section. The first reflector defines a cavity area having a perimeter, and includes an inward facing reflective border for at least 50% of the perimeter of the cavity area. Radiation is provided to the cavity area with an intensity distribution I and a maximum intensity Imax. The cavity area includes a focal area defined by all points at which a normalized intensity I/Imax is greater than 0.2. A width of the focal area is 0.0001-0.5 times a width of the cavity area.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 13, 2018
    Inventors: Johanna Heck, Darrin Leonhardt, David Sprankle, Michael Peil, Jörg Diettrich
  • Publication number: 20180216802
    Abstract: A light system is provided. The light system includes: (a) a lamp head assembly, the lamp head assembly including (i) driver circuits, and (ii) a cooling system; and (b) a replaceable assembly connected to the lamp head assembly, the replaceable assembly including (i) a plurality of light producing elements, (ii) a cooling structure for receiving a cooling fluid from the cooling system, the plurality of light producing elements being supported by the cooling structure, and (iii) a reflector for receiving light from the plurality of light producing elements. The replaceable assembly is separable, as a single assembly, from the lamp head assembly.
    Type: Application
    Filed: January 17, 2018
    Publication date: August 2, 2018
    Inventors: William E. Johnson, III, Ruben C. Manikkam, Mahmood Gharagozloo, Darrin Leonhardt
  • Publication number: 20180080644
    Abstract: An ultraviolet LED array is provided. The ultraviolet LED array includes a heatsink. The heatsink includes (i) a base heatsink element, and (ii) a thick film layer applied to the base heatsink element. The ultraviolet LED array also includes a plurality of ultraviolet LED elements coupled directly to the thick film layer of the heatsink.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 22, 2018
    Inventors: William E. Johnson, III, Darrin Leonhardt, Mahmood Gharagozloo
  • Patent number: 9706609
    Abstract: A light-emitting source for curing applications is disclosed. The light-emitting source comprises a first housing having a top wall and one or more side walls. The top wall and the one or more side walls define a first enclosure having a first open end. The light-emitting source further comprises a plurality of light-emitting devices arranged within the first enclosure of the first housing. One side of each of the plurality of light-emitting devices faces outward from the first open end of the first enclosure. The plurality of light-emitting devices is configured to emit light from the first open end to produce a substantially uniform area of illumination on a facing portion of a surface of a target.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: July 11, 2017
    Assignee: Heraeus Noblelight America LLC
    Inventors: Darrin Leonhardt, Pradyumna Kumar Swain
  • Publication number: 20170146125
    Abstract: A gasket for use in an ultraviolet light source is provided. The gasket includes a body portion formed of an elastomeric material. The body portion is electrically conductive.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 25, 2017
    Inventors: Darrin Leonhardt, Charles H. Wood, David A. Sprankle
  • Patent number: 9644831
    Abstract: A manifold assembly for distribution of a cooling fluid configured for use with a light source is provided. The manifold assembly includes a fluid manifold for providing a cooling fluid to a lamp head assembly of the light source, at least one sensor for sensing at least one characteristic of the cooling fluid in the fluid manifold, and a microprocessor for receiving information related to the at least one characteristic from the at least one sensor.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 9, 2017
    Assignee: Heraeus Noblelight America LLC
    Inventors: William E. Johnson, III, Darrin Leonhardt, William Curtis Harper, Mahmood Gharagozloo, Arunachalam Jawahar
  • Patent number: 9648705
    Abstract: A lamp head assembly is provided. The lamp head assembly includes a plurality of arrays of light producing elements; a driver circuit configured to provide energy to each of the plurality of arrays; and a microprocessor for controlling operation of the driver circuit.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 9, 2017
    Assignee: Heraeus Noblelight America LLC
    Inventors: William E. Johnson, III, Darrin Leonhardt, Mahmood Gharagozloo, Arunachalam Jawahar
  • Publication number: 20160209019
    Abstract: A manifold assembly for distribution of a cooling fluid configured for use with a light source is provided. The manifold assembly includes a fluid manifold for providing a cooling fluid to a lamp head assembly of the light source, at least one sensor for sensing at least one characteristic of the cooling fluid in the fluid manifold, and a microprocessor for receiving information related to the at least one characteristic from the at least one sensor.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 21, 2016
    Inventors: William E. Johnson, III, Darrin Leonhardt, William Curtis Harper, Mahmood Gharagozloo, Arunachalam Jawahar
  • Publication number: 20160209113
    Abstract: A UV light curing system is provided. The UV light curing system includes: a UV light source; a primary reflector for reflecting light emitted by the UV light source in a direction of an enclosure, the enclosure at least partially surrounding an object of interest; and a secondary reflector on an opposite side of the enclosure with respect to the primary reflector, the secondary reflector being positioned along a portion of a length of the enclosure, the secondary reflector surrounding at least 40% of the enclosure at the portion of the length of the enclosure.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 21, 2016
    Inventors: Darrin Leonhardt, William Curtis Harper
  • Publication number: 20160212827
    Abstract: A lamp head assembly is provided. The lamp head assembly includes a plurality of arrays of light producing elements; a driver circuit configured to provide energy to each of the plurality of arrays; and a microprocessor for controlling operation of the driver circuit.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 21, 2016
    Inventors: William E. Johnson, III, Darrin Leonhardt, Mahmood Gharagozloo, Arunachalam Jawahar