Patents by Inventor Yongwoo BAE

Yongwoo BAE 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).

  • Light source unit
    Patent number: 9678418
    Abstract: A light source unit includes a light source which emits a light bundle in one direction; a polarizing unit which is formed to selectively transmit a certain polarized light of a certain wavelength in the light bundle; and a reflection unit which is formed so as to delay the phase of the polarized light so that the polarized light is reflected by the polarizing unit, convert one part of the wavelength of the polarized light, and reflect the polarized light toward the polarizing unit.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: June 13, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Byungwoo Jeoung, Yongwoo Bae, Kihyuk Song, Sangok Yeo
  • Laser light source device
    Patent number: 9444217
    Abstract: A laser diode includes a laser diode emitting light due to an electrical signal; a wavelength conversion plate for shifting the wavelength of the light emitted from the laser diode; a reflecting part for reflecting the light emitted from the laser diode towards the wavelength conversion plate; and a projecting part for emitting, in the forward direction, the light shifted by the wavelength conversion plate. The laser diode can provide a high-power but small-sized laser light source device, and a narrow emission angle can be achieved using the laser diode.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: September 13, 2016
    Assignee: LG Electroncis Inc.
    Inventors: Byungwoo Jeoung, Yongwoo Bae, Sangok Yeo, Seunggyu Lee
  • LASER LIGHT SOURCE DEVICE
    Publication number: 20150357790
    Abstract: A laser diode includes a laser diode emitting light due to an electrical signal; a wavelength conversion plate for shifting the wavelength of the light emitted from the laser diode; a reflecting part for reflecting the light emitted from the laser diode towards the wavelength conversion plate; and a projecting part for emitting, in the forward direction, the light shifted by the wavelength conversion plate. The laser diode can provide a high-power but small-sized laser light source device, and a narrow emission angle can be achieved using the laser diode.
    Type: Application
    Filed: November 7, 2013
    Publication date: December 10, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Byungwoo JEOUNG, Yongwoo BAE, Sangok YEO, Seunggyu LEE
  • LIGHT SOURCE UNIT, AND IMAGE PROJECTION DEVICE INCLUDING SAME
    Publication number: 20150316839
    Abstract: A light source unit includes a light source which emits a light bundle in one direction; a polarizing unit which is formed to selectively transmit a certain polarized light of a certain wavelength in the light bundle; and a reflection unit which is formed so as to delay the phase of the polarized light so that the polarized light is reflected by the polarizing unit, convert one part of the wavelength of the polarized light, and reflect the polarized light toward the polarizing unit.
    Type: Application
    Filed: September 24, 2013
    Publication date: November 5, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Byungwoo JEOUNG, Yongwoo BAE, Kihyuk SONG, Sangok YEO