Patents Assigned to SemiOptoelectronics Co., Ltd.
  • Patent number: 8434883
    Abstract: A LLB bulb includes a base, a LED light source configured to emit electromagnetic radiation, and a lens/cover having a light extracting rough surface pattern (LERSP) configured to reduce glare and reflection in the LLB bulb without light loss. A method for fabricating the LLB bulb includes the steps of providing the lens/cover, and forming the light extracting rough surface pattern (LERSP) on the lens/cover. The lens/cover can be fabricated with the light extracting rough surface pattern (LERSP) using a process such as bead blasting, sand blasting, etching (chemical or plasma), or molding.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: May 7, 2013
    Assignee: SemiOptoelectronics Co., Ltd.
    Inventors: Trung Tri Doan, Jui Kang Yen