Patents Assigned to Soraa, Inc.
  • LED lamps with improved quality of light
    Patent number: 9368695
    Abstract: LED lamp systems having improved light quality are disclosed. The lamps emit more than 500 lm and more than 2% of the power in the spectral power distribution is emitted within a wavelength range from about 390 nm to about 430 nm.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: June 14, 2016
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Troy A. Trottier, Michael R. Krames
  • Compact lens for high intensity light source
    Patent number: 9360190
    Abstract: The present invention relates to a compact optic lens for a high intensity light source having improved output beam characteristics. The compact optic lens provides increased light output without increasing device cost or device size to enable coverage of many beam angles.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: June 7, 2016
    Assignee: Soraa, Inc.
    Inventors: Frank Tin Chung Shum, Michael Ragan Krames
  • Compact lens for high intensity light source
    Patent number: 9310052
    Abstract: The present invention relates to a compact optic lens for a high intensity light source having improved output beam characteristics. The compact optic lens provides increased light output without increasing device cost or device size to enable coverage of many beam angles.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: April 12, 2016
    Assignee: Soraa, Inc.
    Inventor: Frank Shum
  • Ultrapure mineralizers and methods for nitride crystal growth
    Patent number: 9299555
    Abstract: An ultrapure mineralizer is formed by vaporization, condensation, and delivery of a condensable mineralizer composition. The mineralizer has an oxygen content below 100 parts per million. The ultrapure mineralizer is useful as a raw material for ammonothermal growth of bulk group III metal nitride crystals.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: March 29, 2016
    Assignee: Soraa, Inc.
    Inventors: Alex Alexander, John W. Nink, Jr., Mark P. D'Evelyn
  • Power light emitting diode and method with uniform current density operation
    Patent number: 9293644
    Abstract: A light emitting diode device has a bulk gallium and nitrogen containing substrate with an active region. The device has a lateral dimension and a thick vertical dimension such that the geometric aspect ratio forms a volumetric diode that delivers a nearly uniform current density across the range of the lateral dimension.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 22, 2016
    Assignee: Soraa, Inc.
    Inventors: Thomas M. Katona, James W. Raring, Mark P. D'Evelyn, Michael R. Krames, Aurelien J. F. David
  • System and method for selected pump LEDs with multiple phosphors
    Patent number: 9293667
    Abstract: An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: March 22, 2016
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Arpan Chakraborty, Michael Ragan Krames, Troy Trottier
  • Method for quantification of extended defects in gallium-containing nitride crystals
    Patent number: 9275912
    Abstract: Methods for quantifying extended defects in a gallium-containing nitride crystal, wafer, or device, are disclosed. The methods include providing a gallium-containing nitride crystal, wafer, or device, processing the gallium-containing nitride crystal, wafer, or device in an etchant solution comprising one or more of H3PO4, H3PO4 that has been conditioned by prolonged heat treatment to form polyphosphoric acid, and H2SO4; removing the gallium-containing nitride crystal, wafer, or device from the etchant solution; and quantifying the concentration of at least one of etch pits or etch grooves.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: March 1, 2016
    Assignee: Soraa, Inc.
    Inventors: Wenkan Jiang, Dirk Ehrentraut, Bradley C. Downey, Mark P. D'Evelyn
  • Apportioning optical projection paths in an LED lamp
    Patent number: 9267661
    Abstract: LED illumination systems and techniques for apportioning optical projection paths in an LED lamp are disclosed.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: February 23, 2016
    Assignee: Soraa, Inc.
    Inventors: Michael R. Krames, Frank Shum
  • Light emitting diodes with low refractive index material layers to reduce light guiding effects
    Patent number: 9269876
    Abstract: Light emitting diodes including low refractive index layers for reducing guided light are disclosed. The light-emitting diodes include at least one n-doped layer, at least one p-doped layer, and an active region disposed between the at least one n-doped layer and the at least one p-doped layer. The active region comprises a light-emitting material. The light-emitting diode further comprises at least one low refractive index layer disposed in or around the active region.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: February 23, 2016
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Michael J. Grundmann
  • Miscut bulk substrates
    Patent number: 9236530
    Abstract: A method for providing (Al,Ga,In)N thin films on Ga-face c-plane (Al,Ga,In)N substrates using c-plane surfaces with a miscut greater than at least 0.35 degrees toward the m-direction. Light emitting devices are formed on the smooth (Al,Ga,In)N thin films. Devices fabricated on the smooth surfaces exhibit improved performance.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: January 12, 2016
    Assignee: Soraa, Inc.
    Inventors: Arpan Chakraborty, Michael Grundmann, Anurag Tyagi
  • High-temperature ultra-low ripple multi-stage LED driver and LED control circuits
    Patent number: 9215764
    Abstract: Techniques for high temperature ultra-low ripple multi-stage LED driver circuit together with LED control circuits are disclosed.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: December 15, 2015
    Assignee: Soraa, Inc.
    Inventors: Dong Zhou, Frank Shum, Michael Tran, John Carpenter, Richard Carnes
  • Method for synthesis of high quality large area bulk gallium based crystals
    Patent number: 9175418
    Abstract: A large area nitride crystal, comprising gallium and nitrogen, with a non-polar or semi-polar large-area face, is disclosed, along with a method of manufacture. The crystal is useful as a substrate for a light emitting diode, a laser diode, a transistor, a photodetector, a solar cell, or for photoelectrochemical water splitting for hydrogen generation.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: November 3, 2015
    Assignee: Soraa, Inc.
    Inventors: Mark P. D'Evelyn, James S. Speck
  • Spot lamp
    Patent number: D741507
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: October 20, 2015
    Assignee: Soraa, Inc.
    Inventor: Artem Mishin
  • LED lamp
    Patent number: D742555
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: November 3, 2015
    Assignee: Soraa, Inc.
    Inventors: Frank Shum, Ronald Randall Van Thiel
  • Diamond-shaped semiconductor die
    Patent number: D743356
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 17, 2015
    Assignee: Soraa, Inc.
    Inventors: Rajat Sharma, Andrew Felker, William D. Houck
  • Spot lamp
    Patent number: D747010
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: January 5, 2016
    Assignee: SORAA, INC.
    Inventors: Frank Shum, Ronald Van Thiel, James Juma
  • Flood lamp
    Patent number: D751227
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: March 8, 2016
    Assignee: Soraa, Inc.
    Inventors: Frank Shum, Ronald Van Thiel, James Juma
  • Array of triangular semiconductor dice
    Patent number: D751999
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: March 22, 2016
    Assignee: Soraa, Inc.
    Inventors: Rajat Sharma, Andrew Felker, William D. Houck
  • LED lamp
    Patent number: D752777
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: March 29, 2016
    Assignee: Soraa, Inc.
    Inventors: Frank Shum, Ronald Randall Van Thiel
  • LED light module
    Patent number: D753850
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: April 12, 2016
    Assignee: Soraa, Inc.
    Inventors: Frank Shum, Ronald Randall Van Thiel