Patents by Inventor Jung-kwuen AN
Jung-kwuen AN 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: 11194080Abstract: A diffractive optical element including a diffraction layer including a plurality of optical axes along an in-plane direction, wherein the diffraction layer includes an anisotropic material that satisfies one of Relationship Equations 1A to 3A ?n1(450 nm)<?n1(550 nm)??n1(650 nm)??Relationship Equation 1A ?n1(450 nm)??n1(550 nm)<?n1(650 nm)??Relationship Equation 2A ?n1(450 nm)=?n1(550 nm)=?n1(650 nm)??Relationship Equation 3A wherein, in Relationship Equations 1A to 3A, ?n1 (450 nm) is a birefringence of the anisotropic material at a wavelength of 450 nanometers, ?n1 (550 nm) is a birefringence of the anisotropic material at a wavelength of 550 nanometers, and ?n1 (650 nm) is a birefringence of the anisotropic material at a wavelength of 650 nanometers.Type: GrantFiled: June 8, 2020Date of Patent: December 7, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Seok Choi, Beom Seok Kim, Ju Hyun Kim, Hoon Song, Jung Kwuen An, Sung Dug Kim, Hong-Seok Lee, Sunghyun Han
-
Publication number: 20210011206Abstract: A diffractive optical element including a diffraction layer including a plurality of optical axes along an in-plane direction, wherein the diffraction layer includes an anisotropic material that satisfies one of Relationship Equations 1A to 3A ?n1(450 nm)<?n1(550 nm)??n1(650 nm)??Relationship Equation 1A ?n1(450 nm)??n1(550 nm)<?n1(650 nm)??Relationship Equation 2A ?n1(450 nm)=?n1(550 nm)=?n1(650 nm)??Relationship Equation 3A wherein, in Relationship Equations 1A to 3A, ?n1 (450 nm) is a birefringence of the anisotropic material at a wavelength of 450 nanometers, ?n1 (550 nm) is a birefringence of the anisotropic material at a wavelength of 550 nanometers, and ?n1 (650 nm) is a birefringence of the anisotropic material at a wavelength of 650 nanometers.Type: ApplicationFiled: June 8, 2020Publication date: January 14, 2021Inventors: Hyun Seok CHOI, Beom Seok KIM, Ju Hyun KIM, Hoon SONG, Jung Kwuen AN, Sung Dug KIM, Hong-Seok LEE, Sunghyun HAN
-
Patent number: 9753432Abstract: An optical head for a hologram optical apparatus and a method of operating the same are provided. The optical head for the hologram optical apparatus includes a reference light unit for guiding reference light, a signal light unit for guiding signal light, and a light source unit for providing 1 the reference light and the signal light to the reference light unit and the signal light unit, wherein the reference light unit and the signal light unit are stacked. The signal light unit includes: a plurality of optical waveguides stacked sequentially; composite hologram optical elements and lighting hologram optical elements disposed on the plurality of optical waveguides; an optical modulator for modulating light output from the plurality of the optical waveguides; and a lens for condensing light output from the optical modulator onto a recording layer.Type: GrantFiled: November 14, 2013Date of Patent: September 5, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyoung-seok Pyun, Chil-sung Choi, Alexander Morozov, Jung-kwuen An, Sun-il Kim, Ivan Bovsunovskiy, Andrew Putilin
-
Patent number: 9651918Abstract: Provided is a holographic recording method in which an interference fringe between a reference beam and a signal beam, modulated according to information regarding a plurality of hologram pixels, is recorded on a holographic recording medium, the holographic recording method including multiplexing-recording the interference fringe of the plurality of hologram pixels such that at least a part of the interference fringe recorded of neighboring hologram pixels of the plurality of hologram pixels is overlapped.Type: GrantFiled: September 19, 2013Date of Patent: May 16, 2017Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Kyoung-seok Pyun, Byoung-ho Lee, Sun-il Kim, Chil-sung Choi, Soon-gi Park, Jung-kwuen An, Kee-hoon Hong, Ji-woon Yeom, Jong-hyun Kim
-
Patent number: 9454132Abstract: An integrated hologram optical device, a method of manufacturing the same, and an integrated hologram recording apparatus are provided. The integrated hologram optical device includes a two-dimensional (2D) array of a plurality of hogels. A holographic element is configured to be recorded such that a combination of the plurality of hogels is configured to adjust at least one of an angle and a focal length of a signal beam.Type: GrantFiled: December 2, 2013Date of Patent: September 27, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-kwuen An, Kyoung-seok Pyun
-
Patent number: 9360840Abstract: Provided are a complex spatial light modulator and a three-dimensional (3D) image display including the same. The complex spatial light modulator includes a spatial light modulator configured to modulate a phase of a light beam, a prism array disposed after the spatial light modulator and including an array of prism portions each having a first prism surface and a second prism surface, and a diffractive device configured to diffract a light beam that has passed through the prism array. Accordingly, both the phase and amplitude of the light beam may be modulated.Type: GrantFiled: July 24, 2014Date of Patent: June 7, 2016Assignees: SAMSUNG ELECTRONICS CO., LTD., Korea University Research and Business FoundationInventors: Kang-hee Won, Hwi Kim, Gee-young Sung, Hoon Song, Jung-kwuen An, Hong-seok Lee
-
Patent number: 9354120Abstract: Disclosed is an autocorrelator for generating an autocorrelation signal for an ultrashort pulse to measure the ultrashort pulse. The autocorrelator comprises: a light source unit for generating an optical pulse; a double wedge interferometer in which a first wedge and a second wedge serving as a wedge-shaped optical medium are arranged such that facing surfaces of the first and second wedges are parallel to each other, so as to separate the optical pulse provided by the light source unit to generate two optical pulses; a harmonic light medium for receiving the generated two optical pulses to generate second harmonic light; and a measurement unit for detecting the second harmonic light to generate an autocorrelation signal. Thus, the time width of an ultrashort pulse can be measured by an interferometer using only two wedge-shaped optical components.Type: GrantFiled: July 27, 2012Date of Patent: May 31, 2016Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Dong Eon Kim, Jung Kwuen An
-
Publication number: 20150205262Abstract: Provided are a complex spatial light modulator and a three-dimensional (3D) image display including the same. The complex spatial light modulator includes a spatial light modulator configured to modulate a phase of a light beam, a prism array disposed after the spatial light modulator and including an array of prism portions each having a first prism surface and a second prism surface, and a diffractive device configured to diffract a light beam that has passed through the prism array. Accordingly, both the phase and amplitude of the light beam may be modulated.Type: ApplicationFiled: July 24, 2014Publication date: July 23, 2015Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.Inventors: Kang-hee WON, Hwi KIM, Gee-young SUNG, Hoon SONG, Jung-kwuen AN, Hong-seok LEE
-
Publication number: 20150070705Abstract: Disclosed is an autocorrelator for generating an autocorrelation signal for an ultrashort pulse to measure the ultrashort pulse. The autocorrelator comprises: a light source unit for generating an optical pulse; a double wedge interferometer in which a first wedge and a second wedge serving as a wedge-shaped optical medium are arranged such that facing surfaces of the first and second wedges are parallel to each other, so as to separate the optical pulse provided by the light source unit to generate two optical pulses; a harmonic light medium for receiving the generated two optical pulses to generate second harmonic light; and a measurement unit for detecting the second harmonic light to generate an autocorrelation signal. Thus, the time width of an ultrashort pulse can be measured by an interferometer using only two wedge-shaped optical components.Type: ApplicationFiled: July 27, 2012Publication date: March 12, 2015Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Dong Eon Kim, Jung Kwuen An
-
Publication number: 20140285863Abstract: Provided is a holographic recording method in which an interference fringe between a reference beam and a signal beam, modulated according to information regarding a plurality of hologram pixels, is recorded on a holographic recording medium, the holographic recording method including multiplexing-recording the interference fringe of the plurality of hologram pixels such that at least a part of the interference fringe recorded of neighboring hologram pixels of the plurality of hologram pixels is overlapped.Type: ApplicationFiled: September 19, 2013Publication date: September 25, 2014Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyoung-seok PYUN, Byoung-ho LEE, Sun-il KIM, Chil-sung CHOI, Soon-gi PARK, Jung-kwuen AN, Kee-hoon HONG, Ji-woon YEOM, Jong-hyun KIM
-
Publication number: 20140185115Abstract: An integrated hologram optical device, a method of manufacturing the same, and an integrated hologram recording apparatus are provided. The integrated hologram optical device includes a two-dimensional (2D) array of a plurality of hogels. A holographic element is configured to be recorded such that a combination of the plurality of hogels is configured to adjust at least one of an angle and a focal length of a signal beam.Type: ApplicationFiled: December 2, 2013Publication date: July 3, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-kwuen AN, Kyoung-seok PYUN
-
Publication number: 20140132999Abstract: An optical head for a hologram optical apparatus and a method of operating the same are provided. The optical head for the hologram optical apparatus includes a reference light unit for guiding reference light, a signal light unit for guiding signal light, and a light source unit for providing 1 the reference light and the signal light to the reference light unit and the signal light unit, wherein the reference light unit and the signal light unit are stacked. The signal light unit includes: a plurality of optical waveguides stacked sequentially; composite hologram optical elements and lighting hologram optical elements disposed on the plurality of optical waveguides; an optical modulator for modulating light output from the plurality of the optical waveguides; and a lens for condensing light output from the optical modulator onto a recording layer.Type: ApplicationFiled: November 14, 2013Publication date: May 15, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyoung-seok PYUN, Chil-sung CHOI, Alexander MOROZOV, Jung-kwuen AN, Sun-il KIM, Ivan BOVSUNOVSKIY, Andrew PUTILIN