Patents by Inventor Xi Yuan He

Xi Yuan He 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: 8231244
    Abstract: Various embodiments provide a lateral reflector, wherein the lateral reflector has a bottom opening, a light source arranged on a base plate can be accommodated in the bottom opening; a reflecting surface is arranged on two opposite sides of the light source in the lateral reflector, and the reflecting surface is configured to reflect a light emitted from the light source and arriving at the reflecting surface, so that the light arriving at the reflecting surface is deflected toward a direction that is parallel to the opposite sides. Various embodiments further provide an array of such lateral reflectors. Further, various embodiments disclose a lamp unit and a lamp containing such lateral reflector, and puts forward a method for producing such lateral reflector.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: July 31, 2012
    Assignee: Osram AG
    Inventors: Xi Yuan He, Yabin Luo, Chin You Yue
  • Patent number: 8179037
    Abstract: A high power LED module assembly may include at least one high power LED module each of which includes a MCPCB and a high power LED disposed on the MCPCB, a flex tube which includes a base engaging with each of the high power LED modules and a cover enclosing the base; wherein the high power LED module assembly further comprises at least one heat sink each of which is correspondingly connected to the bottom of each high power LED modules; and wherein the cover is engaged with the heat sink and encloses the base, the high power LED module and all other sides of the heat sink than the bottom side thereof which is exposed to ambient environment.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: May 15, 2012
    Assignee: Osram AG
    Inventors: Chi Man Chan, Xi Yuan He, Chin You Yue, Ze Sheng Ye
  • Patent number: 7994516
    Abstract: The present invention discloses an LED module comprising: a waterproof enclosure; an LED accommodated in the waterproof enclosure; a wire for coupling the LED module with other LED modules and a driver; and a radiating unit set in the bottom of the waterproof enclosure and exposed to the external environment. The invention further provides an LED chain comprising the above said LED module and a driver coupled with the LED module. The LED chain according to the invention may have a high waterproof level, for example, IP65. The heat generated during the operation of the high power LED module may be transmitted to the external environment in time via a heat sink set on the LED module, thereby effective thermal management for the LED module and a long service life of the LED module may be obtained. Moreover, the finish surface of the driver may be made handsome by encapsulating the driver through the low pressure molding.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: August 9, 2011
    Assignee: OSRAM Gesellschaft mit beschränkter Haftung
    Inventors: Chi Man Chan, Huajian Fan, Yu Bao He, Xi Yuan He, Ze Sheng Ye, Max Yue
  • Patent number: 7830094
    Abstract: A driver arrangement for LED light sources includes a transformer having primary and secondary winding connections. A first electronic switch (SW1) controls current flow through the primary winding, and a sensing resistor is coupled to the primary winding to produce a current sensing signal. A second electronic switch (SW2) is sensitive to the sensing signal to switch off SW1 as current flow through the primary winding reaches a given threshold. SW1 is thus alternatively turned-on and off in alternating turn-on and switch-off phases to power the LED light source via the secondary winding. SW1 is a field effect transistor, preferably a MOSFET. The transformer is SELV-rated. The sensing resistor may be a variable resistor to adjust the duration of the on/off phases to permit controlled dimming.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: November 9, 2010
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Xi Yuan He, Rui Ma, Giovanni Scilla
  • Publication number: 20100182787
    Abstract: Various embodiments provide a lateral reflector, wherein the lateral reflector has a bottom opening, a light source arranged on a base plate can be accommodated in the bottom opening; a reflecting surface is arranged on two opposite sides of the light source in the lateral reflector, and the reflecting surface is configured to reflect a light emitted from the light source and arriving at the reflecting surface, so that the light arriving at the reflecting surface is deflected toward a direction that is parallel to the opposite sides. Various embodiments further provide an array of such lateral reflectors. Further, various embodiments disclose a lamp unit and a lamp containing such lateral reflector, and puts forward a method for producing such lateral reflector.
    Type: Application
    Filed: January 4, 2010
    Publication date: July 22, 2010
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Xi Yuan He, Yabin Luo, Chin You Yue
  • Publication number: 20100171405
    Abstract: A high power LED module assembly may include at least one high power LED module each of which includes a MCPCB and a high power LED disposed on the MCPCB, a flex tube which includes a base engaging with each of the high power LED modules and a cover enclosing the base; wherein the high power LED module assembly further comprises at least one heat sink each of which is correspondingly connected to the bottom of each high power LED modules; and wherein the cover is engaged with the heat sink and encloses the base, the high power LED module and all other sides of the heat sink than the bottom side thereof which is exposed to ambient environment.
    Type: Application
    Filed: December 31, 2009
    Publication date: July 8, 2010
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Chi Man Chan, Xi Yuan He, Chin You Yue, Ze Sheng Ye
  • Publication number: 20090272986
    Abstract: The present invention discloses an LED module comprising: a waterproof enclosure; an LED accommodated in the waterproof enclosure; a wire for coupling the LED module with other LED modules and a driver; and a radiating unit set in the bottom of the waterproof enclosure and exposed to the external environment. The invention further provides an LED chain comprising the above said LED module and a driver coupled with the LED module. The LED chain according to the invention may have a high waterproof level, for example, IP65. The heat generated during the operation of the high power LED module may be transmitted to the external environment in time via a heat sink set on the LED module, thereby effective thermal management for the LED module and a long service life of the LED module may be obtained. Moreover, the finish surface of the driver may be made handsome by encapsulating the driver through the low pressure molding.
    Type: Application
    Filed: March 31, 2009
    Publication date: November 5, 2009
    Applicant: OSRAM Gesellschaft mit beschrankter Haftung
    Inventors: Chi Man Chan, Huajian Fan, Yu Bao He, Xi Yuan He, Ze Sheng Ye, Max Yue
  • Patent number: 7559674
    Abstract: A LED lighting arrangement includes a support body having mounted thereon one or more LED lighting sources and a driver or feeding the LED lighting sources. The support body includes a high-voltage section carrying the driver and a low-voltage section carrying, mounted on a heat sink, the light sources. An insulation barrier is provided between the high voltage section and the low-voltage section of the board with a twisted pair forming a wiring that traverses the insulation barrier to connect the driver and the LED lighting sources.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: July 14, 2009
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Xi Yuan He, Rui Ma, Giovanni Scilla
  • Publication number: 20070290625
    Abstract: A driver arrangement for LED light sources includes a transformer having primary and secondary winding connections. A first electronic switch (SW1) controls current flow through the primary winding, and a sensing resistor is coupled to the primary winding to produce a current sensing signal. A second electronic switch (SW2) is sensitive to the sensing signal to switch off SW1 as current flow through the primary winding reaches a given threshold. SW1 is thus alternatively turned-on and off in alternating turn-on and switch-off phases to power the LED light source via the secondary winding. SW1 is a field effect transistor, preferably a MOSFET. The transformer is SELV-rated. The sensing resistor may be a variable resistor to adjust the duration of the on/off phases to permit controlled dimming.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 20, 2007
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Xi Yuan HE, Rui Ma, Giovanni Scilla