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).
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Patent number: 11396990Abstract: 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: GrantFiled: October 1, 2020Date of Patent: July 26, 2022Assignee: LG Electronics Inc.Inventors: Jongmoo Lee, Eunyoung Kim, Mongkwon Jung, Byungwoo Jeoung
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Patent number: 11067242Abstract: 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: GrantFiled: January 31, 2018Date of Patent: July 20, 2021Assignee: LG Electronics Inc.Inventors: Jongmoo Lee, Eunyoung Kim, Mongkwon Jung, Byungwoo Jeoung
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Publication number: 20210018155Abstract: 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: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Inventors: Jongmoo LEE, Eunyoung KIM, Mongkwon JUNG, Byungwoo JEOUNG
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Patent number: 10670211Abstract: 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: GrantFiled: January 31, 2018Date of Patent: June 2, 2020Assignee: LG Electronics Inc.Inventors: Jongmoo Lee, Eunyoung Kim, Mongkwon Jung, Byungwoo Jeoung
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Patent number: 10333273Abstract: 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: GrantFiled: April 2, 2018Date of Patent: June 25, 2019Assignee: LG Electronics Inc.Inventors: Jongmoo Lee, Eunyoung Kim, Byungwoo Jeoung
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Publication number: 20190137061Abstract: 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: ApplicationFiled: January 31, 2018Publication date: May 9, 2019Inventors: Jongmoo LEE, Eunyoung KIM, Mongkwon JUNG, Byungwoo JEOUNG
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Publication number: 20190137062Abstract: 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: ApplicationFiled: January 31, 2018Publication date: May 9, 2019Inventors: Jongmoo LEE, Eunyoung KIM, Mongkwon JUNG, Byungwoo JEOUNG
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Patent number: 10267467Abstract: 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: GrantFiled: April 22, 2016Date of Patent: April 23, 2019Assignee: LG Electronics Inc.Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
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Patent number: 10267468Abstract: 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: GrantFiled: May 7, 2018Date of Patent: April 23, 2019Assignee: LG Electronics Inc.Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
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Patent number: 10240739Abstract: 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: GrantFiled: April 22, 2016Date of Patent: March 26, 2019Assignee: LG Electronics Inc.Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
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Patent number: 10118535Abstract: 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: GrantFiled: October 12, 2017Date of Patent: November 6, 2018Assignee: LG Electronics Inc.Inventors: Jun Park, Byungwoo Jeoung
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Publication number: 20180287341Abstract: 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: ApplicationFiled: April 2, 2018Publication date: October 4, 2018Applicant: LG Electronics Inc.Inventors: Jongmoo LEE, Eunyoung KIM, Byungwoo JEOUNG
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Publication number: 20180252377Abstract: 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: ApplicationFiled: May 7, 2018Publication date: September 6, 2018Inventors: Jun PARK, Byungwoo JEOUNG, Sangok YEO
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Patent number: 10051248Abstract: An optical device and an image projection apparatus including the same are disclosed.Type: GrantFiled: May 30, 2015Date of Patent: August 14, 2018Assignee: LG ELECTRONICS INC.Inventors: Byungwoo Jeoung, Sangok Yeo
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Patent number: 9982861Abstract: 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: GrantFiled: April 22, 2016Date of Patent: May 29, 2018Assignee: LG Electronics Inc.Inventors: Jun Park, Byungwoo Jeoung, Sangok Yeo
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Publication number: 20180029525Abstract: 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: ApplicationFiled: October 12, 2017Publication date: February 1, 2018Inventors: Jun PARK, Byungwoo JEOUNG
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Patent number: 9809153Abstract: 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: GrantFiled: August 29, 2016Date of Patent: November 7, 2017Assignee: LG Electronics Inc.Inventors: Jun Park, Byungwoo Jeoung
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Publication number: 20170201730Abstract: An optical device and an image projection apparatus including the same are disclosed.Type: ApplicationFiled: May 30, 2015Publication date: July 13, 2017Inventors: Byungwoo JEOUNG, Sangok YEO
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Patent number: 9678418Abstract: 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: GrantFiled: September 24, 2013Date of Patent: June 13, 2017Assignee: LG ELECTRONICS INC.Inventors: Byungwoo Jeoung, Yongwoo Bae, Kihyuk Song, Sangok Yeo
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Publication number: 20170113599Abstract: 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: ApplicationFiled: August 29, 2016Publication date: April 27, 2017Inventors: Jun PARK, Byungwoo JEOUNG