Patents by Inventor Joongtaek CHA

Joongtaek CHA 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).

  • Patent number: 10890308
    Abstract: The present invention relates to a car lamp (or a vehicle lamp) and a control method thereof, and more particularly, a vehicle lamp using a semiconductor light emitting device. The present invention provides a lamp including a half mirror having an upper surface and a lower surface and configured to reflect a part of light incident on the lower surface and another part to be discharged to outside, a reflector located below the half mirror in a manner of facing the lower surface of the half mirror, and a plurality of light sources located between the half mirror and the reflector to emit light toward the half mirror, wherein the half mirror and the reflector are located to be spaced apart from each other by a predetermined distance such that the light emitted from each of the light sources is repeatedly reflected by the half mirror and the reflector.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: January 12, 2021
    Assignee: ZKW Group GmbH
    Inventors: Mongkwon Jung, Joongtaek Cha
  • Patent number: 10857932
    Abstract: Disclosed is a lamp for a vehicle, including: at least one light source; an outer lens for covering the at least one light source; a housing coupled to the outer lens to form a space; and an antenna module disposed in the space and comprising at least one horn antenna for transmitting and receiving electromagnetic waves.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: December 8, 2020
    Assignee: ZKW Group GmbH
    Inventor: Joongtaek Cha
  • Patent number: 10808901
    Abstract: The present invention relates to a lamp, including a half mirror having upper and lower surfaces to reflect a part of light incident on the lower surface and discharge another part to outside, a first reflector located below the half mirror to be vertically spaced so as to face the lower surface of the half mirror, a plurality of light sources to emit light between the half mirror and the first reflector, and a second reflector located between the light sources to reflect at least some of incident light, wherein the half mirror and the second reflector face each other, such that light emitted from a part of the light sources is repeatedly reflected between the half mirror and the second reflector, and wherein the first and second reflectors face each other, such that light emitted from the remaining light source is repeatedly reflected between the first and second reflectors.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: October 20, 2020
    Assignee: ZKW Group GmbH
    Inventors: Mongkwon Jung, Joongtaek Cha
  • Publication number: 20200101887
    Abstract: Disclosed is a lamp for a vehicle, including: at least one light source; an outer lens for covering the at least one light source; a housing coupled to the outer lens to form a space; and an antenna module disposed in the space and comprising at least one horn antenna for transmitting and receiving electromagnetic waves.
    Type: Application
    Filed: September 10, 2019
    Publication date: April 2, 2020
    Inventor: Joongtaek CHA
  • Publication number: 20200025348
    Abstract: The present invention relates to a car lamp (or a vehicle lamp) and a control method thereof, and more particularly, a vehicle lamp using a semiconductor light emitting device. The present invention provides a lamp including a half mirror having an upper surface and a lower surface and configured to reflect a part of light incident on the lower surface and another part to be discharged to outside, a reflector located below the half mirror in a manner of facing the lower surface of the half mirror, and a plurality of light sources located between the half mirror and the reflector to emit light toward the half mirror, wherein the half mirror and the reflector are located to be spaced apart from each other by a predetermined distance such that the light emitted from each of the light sources is repeatedly reflected by the half mirror and the reflector.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 23, 2020
    Inventors: Mongkwon JUNG, Joongtaek CHA
  • Publication number: 20200025347
    Abstract: The present invention relates to a lamp, including a half mirror having upper and lower surfaces to reflect a part of light incident on the lower surface and discharge another part to outside, a first reflector located below the half mirror to be vertically spaced so as to face the lower surface of the half mirror, a plurality of light sources to emit light between the half mirror and the first reflector, and a second reflector located between the light sources to reflect at least some of incident light, wherein the half mirror and the second reflector face each other, such that light emitted from a part of the light sources is repeatedly reflected between the half mirror and the second reflector, and wherein the first and second reflectors face each other, such that light emitted from the remaining light source is repeatedly reflected between the first and second reflectors.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 23, 2020
    Inventors: Mongkwon JUNG, Joongtaek CHA