Patents by Inventor Byungwoo JEOUNG

Byungwoo JEOUNG 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: 11396990
    Abstract: A phosphor module for a laser light source includes a radiating body, a phosphor layer disposed at the radiating body, the phosphor layer being configured to absorb light having a first wavelength and emit light having a second wavelength different from the first wavelength, a reflective layer that surrounds a side surface of the phosphor layer and is configured to reflect light, and a black matrix layer disposed at the reflective layer and configured to absorb light. The black matrix layer is disposed at an edge of the phosphor layer.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: July 26, 2022
    Assignee: LG Electronics Inc.
    Inventors: Jongmoo Lee, Eunyoung Kim, Mongkwon Jung, Byungwoo Jeoung
  • Patent number: 11067242
    Abstract: A phosphor module for a laser light source includes a heat radiator, a phosphor layer disposed at the heat radiator and configured to absorb and emit light, where a wavelength of the emitted light is different from a wavelength of the absorbed light, a reflective layer that covers a side surface of the phosphor layer and is configured to reflect light, and an adhesive layer disposed between the phosphor layer and the heat radiator and between the reflective layer and the heat radiator, the adhesive layer being configured to couple each of the phosphor layer and the reflective layer to the heat radiator. A thermal conductivity of the adhesive layer is greater than a thermal conductivity of each of the phosphor layer and the reflective layer.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: July 20, 2021
    Assignee: LG Electronics Inc.
    Inventors: Jongmoo Lee, Eunyoung Kim, Mongkwon Jung, Byungwoo Jeoung
  • Publication number: 20210018155
    Abstract: A phosphor module for a laser light source includes a radiating body, a phosphor layer disposed at the radiating body, the phosphor layer being configured to absorb light having a first wavelength and emit light having a second wavelength different from the first wavelength, a reflective layer that surrounds a side surface of the phosphor layer and is configured to reflect light, and a black matrix layer disposed at the reflective layer and configured to absorb light. The black matrix layer is disposed at an edge of the phosphor layer.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Inventors: Jongmoo LEE, Eunyoung KIM, Mongkwon JUNG, Byungwoo JEOUNG
  • Patent number: 10670211
    Abstract: A phosphor module for a laser light source includes a heat radiator, a phosphor layer disposed at the heat radiator to absorb and emit light, in which a wavelength of the emitted light is different from a wavelength of the absorbed light, and a reflective layer disposed on a surface of the phosphor layer and configured to reflect light. The phosphor layer includes a protrusion portion that protrudes from the surface of the phosphor layer and that extends through the reflective layer.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 2, 2020
    Assignee: LG Electronics Inc.
    Inventors: Jongmoo Lee, Eunyoung Kim, Mongkwon Jung, Byungwoo Jeoung
  • Patent number: 10333273
    Abstract: A phosphor module for a laser light source includes a heat dissipation body, and a reflective layer disposed on the heat dissipation body including metal or an alloy. The phosphor module also includes a phosphor layer disposed on the reflective layer. The phosphor layer includes a glass frit and a phosphor and is configured to: absorb a first light emitted from the laser light source and incident on a first surface of the phosphor layer facing away from the reflective layer; and emit, from a second surface of the phosphor layer opposite the first surface and facing towards the reflective layer, a second light having a second wavelength different from a first wavelength of the first light. The phosphor module also includes a light-transmissive transparent heat dissipation layer disposed on the first surface of the phosphor layer that dissipates heat from the phosphor layer.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 25, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jongmoo Lee, Eunyoung Kim, Byungwoo Jeoung
  • Publication number: 20190137061
    Abstract: A phosphor module for a laser light source includes a heat radiator, a phosphor layer disposed at the heat radiator and configured to absorb and emit light, where a wavelength of the emitted light is different from a wavelength of the absorbed light, a reflective layer that covers a side surface of the phosphor layer and is configured to reflect light, and an adhesive layer disposed between the phosphor layer and the heat radiator and between the reflective layer and the heat radiator, the adhesive layer being configured to couple each of the phosphor layer and the reflective layer to the heat radiator. A thermal conductivity of the adhesive layer is greater than a thermal conductivity of each of the phosphor layer and the reflective layer.
    Type: Application
    Filed: January 31, 2018
    Publication date: May 9, 2019
    Inventors: Jongmoo LEE, Eunyoung KIM, Mongkwon JUNG, Byungwoo JEOUNG
  • Publication number: 20190137062
    Abstract: A phosphor module for a laser light source includes a heat radiator, a phosphor layer disposed at the heat radiator to absorb and emit light, in which a wavelength of the emitted light is different from a wavelength of the absorbed light, and a reflective layer disposed on a surface of the phosphor layer and configured to reflect light. The phosphor layer includes a protrusion portion that protrudes from the surface of the phosphor layer and that extends through the reflective layer.
    Type: Application
    Filed: January 31, 2018
    Publication date: May 9, 2019
    Inventors: Jongmoo LEE, Eunyoung KIM, Mongkwon JUNG, Byungwoo JEOUNG
  • Patent number: 10267467
    Abstract: A light emitting module is disclosed. The light emitting module includes a condensing lens for condensing incident light into a space, a light source for providing first light to pass through the condensing lens, a first optical path conversion member for reflecting the first light to provide first reflected light to pass through the condensing lens, a second optical path conversion member for providing the first reflected light as second reflected light to pass through the condensing lens, and a case for receiving at least the condensing lens, the light source, the first optical path conversion member, and the second optical path conversion member.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 23, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
  • Patent number: 10267468
    Abstract: A light-emitting module is disclosed. The light-emitting module includes a condensing lens for condensing incident light into a space, a light source for providing first light to pass through the condensing lens, a first optical path conversion member for reflecting the first light to provide first reflected light to pass through the condensing lens, a second optical path conversion member for reflecting the first reflected light to provide second reflected light to pass through the condensing lens and a wavelength conversion unit for receiving the second reflected light, converting a wavelength of the received second reflected light, and radiating light the wavelength of which has been converted.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: April 23, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
  • Patent number: 10240739
    Abstract: A light emitting module is disclosed. The light emitting module includes a condensing lens for condensing incident light into a space, a light source for providing first light to pass through the condensing lens, a first optical path conversion member for reflecting the first light to provide first reflected light to pass through the condensing lens and a second optical path conversion member for providing the first reflected light as second reflected light to pass through the condensing lens.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: March 26, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
  • Patent number: 10118535
    Abstract: A headlamp includes a light-emitting module that includes a condenser lens that defines an optical axis through a center of the condenser lens and that is configured to focus light incident on a rear surface of the condenser lens. The light-emitting module further includes a laser light source that is located behind the condenser lens and that is configured to generate light toward the condenser lens. The light-emitting module further includes a microelectromechanical system (MEMS) scanner that is located in front of the condenser lens, that is configured to reflect, toward the condenser lens, light generated by the laser light source, and that is configured to scan light generated by the laser light source by moving horizontally and vertically. The light-emitting module further includes a reflection unit that is located behind the condenser lens and that is configured to reflect light reflected by the MEMS scanner.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: November 6, 2018
    Assignee: LG Electronics Inc.
    Inventors: Jun Park, Byungwoo Jeoung
  • Publication number: 20180287341
    Abstract: A phosphor module for a laser light source includes a heat dissipation body, and a reflective layer disposed on the heat dissipation body including metal or an alloy. The phosphor module also includes a phosphor layer disposed on the reflective layer. The phosphor layer includes a glass frit and a phosphor and is configured to: absorb a first light emitted from the laser light source and incident on a first surface of the phosphor layer facing away from the reflective layer; and emit, from a second surface of the phosphor layer opposite the first surface and facing towards the reflective layer, a second light having a second wavelength different from a first wavelength of the first light. The phosphor module also includes a light-transmissive transparent heat dissipation layer disposed on the first surface of the phosphor layer that dissipates heat from the phosphor layer.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 4, 2018
    Applicant: LG Electronics Inc.
    Inventors: Jongmoo LEE, Eunyoung KIM, Byungwoo JEOUNG
  • Publication number: 20180252377
    Abstract: A light-emitting module is disclosed. The light-emitting module includes a condensing lens for condensing incident light into a space, a light source for providing first light to pass through the condensing lens, a first optical path conversion member for reflecting the first light to provide first reflected light to pass through the condensing lens, a second optical path conversion member for reflecting the first reflected light to provide second reflected light to pass through the condensing lens and a wavelength conversion unit for receiving the second reflected light, converting a wavelength of the received second reflected light, and radiating light the wavelength of which has been converted.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Jun PARK, Byungwoo JEOUNG, Sangok YEO
  • Patent number: 10051248
    Abstract: An optical device and an image projection apparatus including the same are disclosed.
    Type: Grant
    Filed: May 30, 2015
    Date of Patent: August 14, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Byungwoo Jeoung, Sangok Yeo
  • Patent number: 9982861
    Abstract: A light-emitting module is disclosed. The light-emitting module includes a condensing lens for condensing incident light into a space, a light source for providing first light to pass through the condensing lens, a first optical path conversion member for reflecting the first light to provide first reflected light to pass through the condensing lens, a second optical path conversion member for reflecting the first reflected light to provide second reflected light to pass through the condensing lens and a wavelength conversion unit for receiving the second reflected light, converting a wavelength of the received second reflected light, and radiating light the wavelength of which has been converted.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: May 29, 2018
    Assignee: LG Electronics Inc.
    Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
  • Publication number: 20180029525
    Abstract: A headlamp includes a light-emitting module that includes a condenser lens that defines an optical axis through a center of the condenser lens and that is configured to focus light incident on a rear surface of the condenser lens. The light-emitting module further includes a laser light source that is located behind the condenser lens and that is configured to generate light toward the condenser lens. The light-emitting module further includes a microelectromechanical system (MEMS) scanner that is located in front of the condenser lens, that is configured to reflect, toward the condenser lens, light generated by the laser light source, and that is configured to scan light generated by the laser light source by moving horizontally and vertically. The light-emitting module further includes a reflection unit that is located behind the condenser lens and that is configured to reflect light reflected by the MEMS scanner.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 1, 2018
    Inventors: Jun PARK, Byungwoo JEOUNG
  • Patent number: 9809153
    Abstract: A headlamp includes a light-emitting module that includes a condenser lens that defines an optical axis through a center of the condenser lens and that is configured to focus light incident on a rear surface of the condenser lens. The light-emitting module further includes a laser light source that is located behind the condenser lens and that is configured to generate light toward the condenser lens. The light-emitting module further includes a microelectromechanical system (MEMS) scanner that is located in front of the condenser lens, that is configured to reflect, toward the condenser lens, light generated by the laser light source, and that is configured to scan light generated by the laser light source by moving horizontally and vertically. The light-emitting module further includes a reflection unit that is located behind the condenser lens and that is configured to reflect light reflected by the MEMS scanner.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 7, 2017
    Assignee: LG Electronics Inc.
    Inventors: Jun Park, Byungwoo Jeoung
  • Publication number: 20170201730
    Abstract: An optical device and an image projection apparatus including the same are disclosed.
    Type: Application
    Filed: May 30, 2015
    Publication date: July 13, 2017
    Inventors: Byungwoo JEOUNG, Sangok YEO
  • 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
  • Publication number: 20170113599
    Abstract: A headlamp includes a light-emitting module that includes a condenser lens that defines an optical axis through a center of the condenser lens and that is configured to focus light incident on a rear surface of the condenser lens. The light-emitting module further includes a laser light source that is located behind the condenser lens and that is configured to generate light toward the condenser lens. The light-emitting module further includes a microelectromechanical system (MEMS) scanner that is located in front of the condenser lens, that is configured to reflect, toward the condenser lens, light generated by the laser light source, and that is configured to scan light generated by the laser light source by moving horizontally and vertically. The light-emitting module further includes a reflection unit that is located behind the condenser lens and that is configured to reflect light reflected by the MEMS scanner.
    Type: Application
    Filed: August 29, 2016
    Publication date: April 27, 2017
    Inventors: Jun PARK, Byungwoo JEOUNG