Patents by Inventor Hong Huat Yeoh

Hong Huat Yeoh 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).

  • Phosphor-converted LED devices having improved light distribution uniformity
    Patent number: 7667239
    Abstract: A New Phosphor-converted LED Device (“NPCLD”) is disclosed. The NPCLD may include a lens over a phosphor body, in which the lens and the phosphor body each have a substantially convex upper surface. The NPCLD may alternatively include first and second lenses, the first lens having a substantially flat interface with a phosphor body.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: February 23, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Siew It Pang, Meng Ee Lee, Kian Shin Lee, Su Lin Oon, Hong Huat Yeoh
  • Phosphor-Converted LED Devices Having Improved Light Distribution Uniformity
    Publication number: 20080111147
    Abstract: A New Phosphor-converted LED Device (“NPCLD”) is disclosed. The NPCLD may include a lens over a phosphor body, in which the lens and the phosphor body each have a substantially convex upper surface. The NPCLD may alternatively include first and second lenses, the first lens having a substantially flat interface with a phosphor body.
    Type: Application
    Filed: December 6, 2007
    Publication date: May 15, 2008
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Siew It Pang, Meng Ee Lee, Kian Shin Lee, Su Lin Oon, Hong Huat Yeoh
  • Phosphor-converted LED devices having improved light distribution uniformity
    Patent number: 7329907
    Abstract: A New Phosphor-converted LED Device (“NPCLD”) is disclosed. The NPCLD may include a lens over a phosphor body, in which the lens and the phosphor body each have a substantially convex upper surface. The NPCLD may alternatively include first and second lenses, the first lens having a substantially flat interface with a phosphor body.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: February 12, 2008
    Assignee: Avago Technologies, ECBU IP Pte Ltd
    Inventors: Siew It Pang, Meng Ee Lee, Kian Shin Lee, Su Lin Oon, Hong Huat Yeoh
  • Method and apparatus for mixing light emitted by a plurality of solid-state light emitters
    Patent number: 7315048
    Abstract: In one embodiment, light emitted by a plurality of solid-state light emitters is mixed by mounting the plurality of solid-state light emitters on a transparent to translucent substrate so that they primarily emit light away from the substrate. The light emitters are then covered with a transparent to translucent encapsulant; and the encapsulant is coated with a reflective material that reflects light emitted by the light emitters toward the substrate. Related apparatus is also disclosed.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: January 1, 2008
    Assignee: Avago Technologies ECBU IP (Singapore) PTE Ltd
    Inventors: Elizabeth Ching Ling Fung, Thye Linn Mok, Hong Huat Yeoh, Yew Cheong Kuan, Fakhrul Arifin Mohd Afif, Norfidathul Aizar Abdul Karim, Kian Shin Lee, Hui Peng Koay
  • Light-emitting diode module for flash and auto-focus application
    Patent number: 7284871
    Abstract: A flash module has a first light-emitting diode (“LED”) optically coupled to a first lens having a first viewing angle, and a second LED optically coupled to a second lens having a second viewing angle. The second viewing angle is greater than the first viewing angle. A first control signal line coupled to the first LED allows selectively activating the first LED. A second control signal line coupled to the second LED activates the second LED.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: October 23, 2007
    Assignee: Avago Technologies ECB4 IP (Singapore) Pte Ltd
    Inventors: Su Lin Oon, Kian Shin Lee, Meng Ee Lee, Siew It Pang, Hong Huat Yeoh