Patents by Inventor Jason J Li

Jason J Li 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: 10841997
    Abstract: A light emitting element control circuit and power supply for a solid state lamp includes an electrical control circuit controller which enables the operation of a solid state lamp in three distinct modes, which allows the user significant flexibility in operation of the lamp. It enables the user to operate the lamp with a fixed emission spectrum but with intensity control (Mode I); or with discrete settings of blue only or red only or a fixed ratio of the two (Mode II); or an on-demand ratio of blue to red emission whereby the user can operate the lamp with any arbitrary ratio of blue to red for example to meet different spectral requirements of, for example, different phases of plant growth (Mode III).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: November 17, 2020
    Assignee: LEDVANCE LLC
    Inventors: Ravidasa Hegde, Arunava Dutta, Janet A. Milliez, Jason J. Li
  • Publication number: 20180227991
    Abstract: A light emitting element control circuit and power supply for a solid state lamp includes an electrical control circuit controller which enables the operation of a solid state lamp in three distinct modes, which allows the user significant flexibility in operation of the lamp. It enables the user to operate the lamp with a fixed emission spectrum but with intensity control (Mode I); or with discrete settings of blue only or red only or a fixed ratio of the two (Mode II); or an on-demand ratio of blue to red emission whereby the user can operate the lamp with any arbitrary ratio of blue to red for example to meet different spectral requirements of, for example, different phases of plant growth (Mode III).
    Type: Application
    Filed: September 13, 2017
    Publication date: August 9, 2018
    Inventors: Ravidasa Hegde, Arunava Dutta, Janet A. Milliez, Jason J. Li
  • Patent number: 7931514
    Abstract: An integral HID reflector lamp may be formed with an HID held in a reflector. An inner element is mechanically coupled to the reflector. The inner element is formed with a first mechanical coupling to mate with the reflector, a second mechanical coupling to mate with a circuit board, and an electrical coupling to at least electrically couple one of the leads to the circuit board. A circuit board has an edge mechanically coupled to the inner element and electrically connected to the leads by an electrical coupling on the inner element. A heat sink spans at least one side of the circuit board and forming an EMI shielding. An outer cover encloses the heat sink, circuit board, and inner element and coupled to the assembly of the reflector, HID lamp, inner element, and heat sink with each elements of the assembly clipped together.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: April 26, 2011
    Assignee: Osram Sylvania Inc.
    Inventors: Jason J Li, Andrew Johnsen, Glenn Freeman, Harold Rothwell, Randall Brown
  • Publication number: 20090280713
    Abstract: An integral HID reflector lamp may be formed with an HID held in a reflector. An inner element is mechanically coupled to the reflector. The inner element is formed with a first mechanical coupling to mate with the reflector, a second mechanical coupling to mate with a circuit board, and an electrical coupling to at least electrically couple one of the leads to the circuit board. A circuit board has an edge mechanically coupled to the inner element and electrically connected to the leads by an electrical coupling on the inner element. A heat sink spans at least one side of the circuit board and forming an EMI shielding. An outer cover encloses the heat sink, circuit board, and inner element and coupled to the assembly of the reflector, HID lamp, inner element, and heat sink with each elements of the assembly clipped together.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 12, 2009
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Jason J. Li, Andrew Johnsen, Glenn Freeman, Harold Rothwell, Randall Brown
  • Patent number: 7575343
    Abstract: A PAR lamp (10) has a body (12) with an internal reflector surface (14) disposed about a longitudinal axis (16). A cavity (18) is provided at one end (20) of the body (12) and an arc discharge tube (22) that provides a substantially spherical light source is positioned in the cavity (18) and disposed on the longitudinal axis (16). A cover receiving opening (24) is provided at a second end (26) of the body and a cover (27) closes the cover receiving opening (24). A plurality of spiral facets (28) is formed on the internal reflector surface (14), the plurality of spiral facets (28) being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: August 18, 2009
    Assignee: Osram Sylvania Inc.
    Inventors: Jason J. Li, Harold Rothwell, Jr., David M. Hrubowchak
  • Patent number: 7541726
    Abstract: A base-up incandescent lamp (10) includes a coiled-coil filament (14) that has a primary wire (18) and a secondary wire (16), the primary wire (18) comprising an overwind that overlies the secondary wire (16) and provides a lower filament temperature and, therefore, less filament sag and a concomitant longer lamp life.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: June 2, 2009
    Assignee: Osram Sylvania Inc.
    Inventors: Jason J. Li, Alexander N. Kasak, Heinz W. Sell, Alan L. Lenef, Raymond T. Fleming, Richard C. Laird
  • Publication number: 20080285286
    Abstract: A PAR lamp (10) has a body (12) with an internal reflector surface (14) disposed about a longitudinal axis (16). A cavity (18) is provided at one end (20) of the body (12) and an arc discharge tube (22) that provides a substantially spherical light source is positioned in the cavity (18) and disposed on the longitudinal axis (16). A cover receiving opening (24) is provided at a second end (26) of the body and a cover (27) closes the cover receiving opening (24). A plurality of spiral facets (28) is formed on the internal reflector surface (14), the plurality of spiral facets (28) being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.
    Type: Application
    Filed: May 17, 2007
    Publication date: November 20, 2008
    Inventors: Jason J. Li, Harold Rothwell, JR., David M. Hrubowchak
  • Patent number: D587823
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: March 3, 2009
    Assignee: Osram Sylvania Inc.
    Inventors: Jason J Li, Glenn Freeman
  • Patent number: D630773
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: January 11, 2011
    Assignee: Osram Sylvania Inc.
    Inventors: Jason J. Li, Jane Beasley, Harold L. Rothwell, Jr., David M. Hrubowchak
  • Patent number: D713566
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 16, 2014
    Assignee: OSRAM Sylvania Inc.
    Inventors: Nilesh S. Patel, Masatoshi Honji, Jason J. Li, Anil Jeswani, Anne J. Milliez