Patents by Inventor Kuhn-Il Lee

Kuhn-Il Lee 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).

  • Apparatus and method for improving image quality in image sensor
    Patent number: 7639292
    Abstract: Apparatus and a method for improving image quality in an image sensor, where a black level of a photographed image is calibrated and luminance of an image signal is expanded within the allowable range of luminance through knee correction for the image signal in which the black level is calibrated. Interpolation for restoring a dead pixel may be achieved before gamma correction for image signal.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: December 29, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Geun Kwon, Kuhn-Il Lee, Kyu-Ik Sohng, Chan-Ho Han, Soo-Wook Jang, Eun-Su Kim
  • Camera lens device for suppressing reflection waves generated by incident waves
    Patent number: 7567285
    Abstract: An optical device for a camera including a lens array for focusing incident optical signals, a window glass positioned in front of the lens array to prevent alien substances from contacting the lens array, and a barrel for retaining the lenses of the lens array, wherein each lens of the lens array is coated with multi-layered thin films to suppress respective reflection waves of incident optical signals having different wavelengths, and of such a thickness that causes the phase of reflection waves reflected through the thin films to be the inverse of the phase of reflection waves reflected at the surface of the lens.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: July 28, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Geun Kwon, Kuhn-Il Lee, Kyu-Ik Sohng
  • Apparatus and method for improving image quality in image sensor
    Publication number: 20050285952
    Abstract: Apparatus and a method for improving image quality in an image sensor, where a black level of a photographed image is calibrated and luminance of an image signal is expanded within the allowable range of luminance through knee correction for the image signal in which the black level is calibrated. Interpolation for restoring a dead pixel may be achieved before gamma correction for image signal.
    Type: Application
    Filed: June 23, 2005
    Publication date: December 29, 2005
    Inventors: Seong-Geun Kwon, Kuhn-Il Lee, Kyu-Ik Sohng, Chan-Ho Han, Soo-Wook Jang, Eun-Su Kim
  • Camera lens device for suppressing reflection waves generated by incident waves
    Publication number: 20050226608
    Abstract: An optical device for a camera including a lens array for focusing incident optical signals, a window glass positioned in front of the lens array to prevent alien substances from contacting the lens array, and a barrel for retaining the lenses of the lens array, wherein each lens of the lens array is coated with multi-layered thin films to suppress respective reflection waves of incident optical signals having different wavelengths, and of such a thickness that causes the phase of reflection waves reflected through the thin films to be the inverse of the phase of reflection waves reflected at the surface of the lens.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 13, 2005
    Inventors: Seong-Geun Kwon, Kuhn-Il Lee, Kyu-Ik Sohng