Patents by Inventor Won Sin LEE

Won Sin 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).

  • Lighting control apparatus and method thereof
    Patent number: 11228719
    Abstract: A method of controlling zoom of a lighting unit based on brightness of an image may include determining at least one of an angle of view of an optical unit and an optical zoom magnification of the optical unit configured to obtain an image by using an image sensor, determining a zoom adjustment range of a lighting unit based on at least one of the angle of view and the optical zoom magnification, and adjusting zoom of the lighting unit such that brightness of the image meets a preset condition within the zoom adjustment range, wherein a diffusion range of light from the lighting unit is adjusted through the zoom adjustment of the lighting unit.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: January 18, 2022
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventors: Won Mo Koo, Hee Joong Han, Won Sin Lee, Jong In Park
  • LIGHTING CONTROL APPARATUS AND METHOD THEREOF
    Publication number: 20190215431
    Abstract: A method of controlling zoom of a lighting unit based on brightness of an image may include determining at least one of an angle of view of an optical unit and an optical zoom magnification of the optical unit configured to obtain an image by using an image sensor, determining a zoom adjustment range of a lighting unit based on at least one of the angle of view and the optical zoom magnification, and adjusting zoom of the lighting unit such that brightness of the image meets a preset condition within the zoom adjustment range, wherein a diffusion range of light from the lighting unit is adjusted through the zoom adjustment of the lighting unit.
    Type: Application
    Filed: May 30, 2018
    Publication date: July 11, 2019
    Applicant: Hanwha Techwin Co., Ltd.
    Inventors: Won Mo KOO, Hee Joong HAN, Won Sin LEE, Jong In PARK
  • Wide angle lens system
    Patent number: 9874718
    Abstract: Provided is a wide angle lens system including: a first lens group having a negative refractive power; and a second lens group having a positive refractive power, wherein the first lens group and the second lens group are provided in that order from an object to an image, and the lens system satisfies a first conditional expression: 16<|L/f|<17.5 where L denotes a distance from a lens surface of the first lens group provided closest to the object to a lens surface of the second lens group provided closest to the image, and f denotes a focal length of the wide angle lens system.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 23, 2018
    Assignee: Hanwha Techwin Co., Ltd.
    Inventor: Won Sin Lee
  • WIDE ANGLE LENS SYSTEM
    Publication number: 20150205070
    Abstract: Provided is a wide angle lens system including: a first lens group having a negative refractive power; and a second lens group having a positive refractive power, wherein the first lens group and the second lens group are provided in that order from an object to an image, and the lens system satisfies a first conditional expression: 16<|L/f|<17.5 where L denotes a distance from a lens surface of the first lens group provided closest to the object to a lens surface of the second lens group provided closest to the image, and f denotes a focal length of the wide angle lens system.
    Type: Application
    Filed: August 27, 2014
    Publication date: July 23, 2015
    Applicant: SAMSUNG TECHWIN CO., LTD.
    Inventor: Won Sin LEE