Patents by Inventor Sun Jun Hwang

Sun Jun Hwang 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).

  • Subminiature imaging optical system
    Patent number: 7646552
    Abstract: There is provided a subminiature imaging optical system suitably applicable to a subminiature optical device such as a mobile phone camera. The subminiature imaging optical system including: a first lens having positive refractive power and both convex surfaces; a second lens having negative refractive power and a concave image-side surface; a third lens having negative refractive power and a meniscus shape with a convex image-side surface; and a fourth lens having negative refractive power.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: January 12, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ho Sik You, Sun Jun Hwang, Phil Ho Jung
  • Subminiature imaging optical system
    Publication number: 20090109552
    Abstract: There is provided a subminiature imaging optical system suitably applicable to a subminiature optical device such as a mobile phone camera. The subminiature imaging optical system including: a first lens having positive refractive power and both convex surfaces; a second lens having negative refractive power and a concave image-side surface; a third lens having negative refractive power and a meniscus shape with a convex image-side surface; and a fourth lens having negative refractive power.
    Type: Application
    Filed: April 1, 2008
    Publication date: April 30, 2009
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ho Sik You, Sun Jun Hwang, Phil Ho Jung