Patents Assigned to Heraeus Noblelight Fusion UV Inc.
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Publication number: 20140265830Abstract: A UV lamp includes a UV lamp unit including a tubular bulb and an antenna inserted in the tubular bulb, and an antenna lead for supplying microwave energy from a microwave energy source to the UV lamp unit.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicants: CONSIGLIO NAZIONALE DELLE RICERCHE, HERAEUS NOBLELIGHT FUSION UV INC.Inventors: Pradyumna Kumar SWAIN, Andrew David Paul HARBOURNE, Iginio LONGO, Carlo FERRARI
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Publication number: 20140265831Abstract: An elongated light source envelope is disclosed. The elongated light source comprises an inner wall and an outer wall formed around a longitudinal axis. The inner wall and the outer wall may be connected at a first axial end by a first side wall and a second axial end by a second side wall. The inner wall, outer wall, the first side wall, and the second side wall define an enclosed space internal to the envelope. The light source envelope further comprises one or more walls formed between the inner wall and the outer wall to further form at least a first enclosed region and a second enclosed region within the enclosed space. The first enclosed region may be configured to emit a different spectrum of ultraviolet radiation from the second enclosed region in response to excitation of the first enclosed region and the second enclosed region by microwave radiation.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: Heraeus Noblelight Fusion UV Inc.Inventors: Andrew David Paul Harbourne, Pradyumna Kumar Swain, Iginio Longo, Carlo Ferrari
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Publication number: 20140263291Abstract: A system and method for powering a dual magnetron with a dual power supply is disclosed. A first power supply supplies a first voltage to a first magnetron. A second power supply supplies a second voltage to a second magnetron. A balancer circuit controls a drive current for altering a magnetic field of the first magnetron and a magnetic field of the second magnetron to maintain the first voltage and the second voltage at a substantially equal voltage.Type: ApplicationFiled: July 30, 2013Publication date: September 18, 2014Applicant: Heraeus Noblelight Fusion UV Inc.Inventors: Mahmood Gharagozloo, Ta Hai Yeh, Pradyumna Kumar Swain
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Patent number: 8836220Abstract: A modular magnetron for use in UV curing lamp assembly is disclosed. The modular magnetron includes a vacuum tube having a vacuum tube body, a top assembly, and a bottom assembly. The top assembly is configured to substantially overlay the vacuum tube. The bottom assembly is configured to substantially extend about the vacuum tube, the vacuum tube being positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly configured to employ a flexible clamp-type fitting about the vacuum tube body for substantially maintaining thermal and electrical conductivity. The top assembly is configured to be releasably fastened to the bottom assembly about the vacuum tube with removable fasteners.Type: GrantFiled: July 25, 2012Date of Patent: September 16, 2014Assignee: Heraeus Noblelight Fusion UV Inc.Inventor: Darrin Leonhardt
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Patent number: 8809820Abstract: A lamp head module includes a high aspect ratio, high fill factor array of light emitting devices and a submount. The array includes multiple groups of electrically seriesed light emitting devices that are connected in electrical parallel. The submount is of monolithic construction and includes multiple L-shaped patterned circuit material layers. Each of the L-shaped patterned circuit material layers includes an arm portion and a stem portion. The arm portion functions as a light emitting device bond pad and the stem portion functions as a wire bond pad and a circuit trace. Each light emitting device of a group is affixed to a corresponding arm portion of the submount. The stem portions are located external to the array, run parallel to the length of the array and perform a primary current carrying function for current flow between adjacent light emitting devices of the group.Type: GrantFiled: August 20, 2012Date of Patent: August 19, 2014Assignee: Heraeus Noblelight Fusion UV Inc.Inventor: Jonathan S. Dahm
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Patent number: 8785868Abstract: An “intelligent” UV curing assembly is disclosed. The “intelligent” assembly permits automated monitoring of performance parameters, part lifetime, and inventory control of internal parts. The “intelligent” assembly includes an on lamp microprocessor. The on lamp microprocessor may be configured to recognize the internal parts, record accumulated working time of each part, and sample and process data from the plurality of “intelligent” sensors.Type: GrantFiled: November 19, 2012Date of Patent: July 22, 2014Assignee: Heraeus Noblelight Fusion UV Inc.Inventors: Yixin Yang, William E. Johnson, III, Pradyumna Kumar Swain, Michael Kenneth West, Charles Hudson Wood, David Xu, Darrin Leonhardt, Mahmood Gharagozloo
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Patent number: 8723146Abstract: Micro-channel-cooled UV curing systems and components thereof are provided. According to one embodiment, a lamp head module includes an optical macro-reflector, an array of LEDs and a micro-channel cooler assembly. The array is positioned within the reflector and has a high fill factor and a high aspect ratio. The array provides a high irradiance output beam pattern having a peak irradiance of greater than 25 W/cm2 at a work piece surface at least 1 mm away from an outer surface of a window of the reflector. The micro-channel cooler assembly maintains a substantially isothermal state among p-n junctions of the LEDs at less than or equal to 80° Celsius. The micro-channel cooler assembly also provides a common anode substrate for the array. A thermally efficient electrical connection is formed between the array and the common anode substrate by mounting the array to the micro-channel cooler assembly.Type: GrantFiled: January 4, 2013Date of Patent: May 13, 2014Assignee: Heraeus Noblelight Fusion UV Inc.Inventors: Jonathan S. Dahm, Mark Jongewaard, Geoff Campbell
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Patent number: 8696155Abstract: The systems and methods described herein relate to solid-state light sources capable of generating radiation beams for, but not limited to, the treatment of surfaces, bulk materials, films, and coatings. The solid-state ultraviolet source optically combines the light output of at least two and preferably as many four independently controllable discrete solid-state light emitters to produce a light beam that has a controllable multi-wavelength spectrum over a wide range of wavelengths (i.e. deep UV to near-IR). Specific features of this light source permit changes in the spectral, spatial and temporal distribution of light for use in curing, surface modification and other applications.Type: GrantFiled: July 21, 2008Date of Patent: April 15, 2014Assignee: Heraeus Noblelight Fusion UV Inc.Inventors: Jeffrey Okamitsu, Miodrag Cekic, Boris Geller, Mark W. Ruckman
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Patent number: 8664871Abstract: A power supply for use in a UV curing lamp assembly is disclosed. The power supply is powered by two intermediate frequency (200-400 Hz) low voltage sinusoidal power sources that drive the primary windings of a dual laminated transformer. The low voltage sinusoidal power sources are configured to have different phases. The out-of-phase low voltage sine wave sources are converted to high voltage sine waves on the secondary windings of the dual laminated transformer having the same phase difference relationship. A single rectifier comprising six high voltage diodes, called a ladder rectifier, combine the two out-of-phase sine waves into a single, approximately DC output power source. By modulating a phase difference between two input sine wave power sources, the approximate DC output voltage exiting the ladder rectifier may be alternated between a low ripple mode of about a 13.84% ripple, a high current mode, a high voltage mode, and an intermediate mode with a ripple in the range of about 13.84% to about 100%.Type: GrantFiled: July 25, 2011Date of Patent: March 4, 2014Assignee: Heraeus Noblelight Fusion UV Inc.Inventor: Yixin Yang
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Patent number: 8507884Abstract: A light source having a substantially elliptical cross-section for UV curing lamp assemblies is disclosed. The light source has a pair of end sections and a central section of smaller diameter than the end sections. The end sections are each connected to the central section by a tapered section the diameter of each of which decreases from an end that mates with an end section toward an end that mates with the central section. Each of the end sections has a substantially elliptical cross-section. The central section and the tapered sections may have a substantially elliptical cross-section. The aspect ratio of the elliptical cross-section of the end sections and the central section of the light source is preferably about 2:1.Type: GrantFiled: January 5, 2012Date of Patent: August 13, 2013Assignee: Heraeus Noblelight Fusion UV Inc.Inventors: Pradyumna Kumar Swain, Darrin Leonhardt, David Allen Sprankle, Charles H. Wood