Patents by Inventor Byoung-guy LEE

Byoung-guy 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).

  • Zoom lens system
    Patent number: 9128274
    Abstract: Provided is a zoom lens system including: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a fourth lens group having a negative refractive power sequentially from an object side to an image side, wherein a zooming operation is performed by moving the second lens group and the fourth lens group.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: September 8, 2015
    Assignee: Hanwha Techwin Co., Ltd.
    Inventor: Byoung-Guy Lee
  • Infrared optical lens system
    Patent number: 8941913
    Abstract: Provided is an infrared optical lens system including: a first lens having negative refractive power; and a second lens having positive refractive power, wherein the first lens and the second lens are disposed in this order from an object side to an image side.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: January 27, 2015
    Assignee: Samsung Techwin Co., Ltd.
    Inventors: Mi-won Kang, Byoung-guy Lee
  • Infrared optical lens system
    Patent number: 8908268
    Abstract: An infrared optical lens system including: a first lens which comprises a crystalline material; and a second lens which comprises an amorphous material and is formed by using molding processing, wherein a refractive index of the first lens is greater than that of the second lens, and the first lens and the second lens are disposed in the order from an object to an image.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: December 9, 2014
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Byoung-guy Lee
  • ZOOM LENS SYSTEM
    Publication number: 20140300974
    Abstract: Provided is a zoom lens system including: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a fourth lens group having a negative refractive power sequentially from an object side to an image side, wherein a zooming operation is performed by moving the second lens group and the fourth lens group.
    Type: Application
    Filed: August 21, 2013
    Publication date: October 9, 2014
    Applicant: SAMSUNG TECHWIN CO., LTD.
    Inventor: Byoung-Guy LEE
  • INFRARED OPTICAL LENS SYSTEM
    Publication number: 20120229892
    Abstract: Provided is an infrared optical lens system including: a first lens having negative refractive power; and a second lens having positive refractive power, wherein the first lens and the second lens are disposed in this order from an object side to an image side.
    Type: Application
    Filed: November 4, 2011
    Publication date: September 13, 2012
    Applicant: SAMSUNG TECHWIN CO., LTD.
    Inventors: Mi-won KANG, Byoung-guy LEE