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公开(公告)号：US20180252579A1
公开(公告)日：2018-09-06
申请号：US15825303
申请日：2017-11-29
Inventor： Hyun Seo KANG , Jeong Eun KIM , Jaisang KOH , Keo-Sik KIM , Sung Chang KIM , Hee Seung KIM , Ji Hyoung RYU , Hyoungjun PARK , Dong Hoon SON , CHAN IL YEO , Young Soon HEO
CPC classification number: G01J3/0227 , G01J3/10 , G01J2003/102 , G09G3/2003
Abstract: An integrated optical measurement apparatus includes: an optical signal transmission unit varying a wavelength of an optical signal to be transmitted and controlling power of the optical signal such that the wavelength is varied to be output to the outside; an optical signal receiving unit measuring power and a wavelength from the optical signal input from the outside; and a controller controlling the optical signal transmission unit and the optical signal receiving unit.
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公开(公告)号：US20180088378A1
公开(公告)日：2018-03-29
申请号：US15499392
申请日：2017-04-27
Inventor： Hyoung Jun PARK , Hyun Seo KANG , Keo Sik KIM , Sung Chang KIM , Young Sun KIM , Jeong Eun KIM , Hee Seung KIM , Ji Hyoung RYU , Dong Hoon SON , Chan Il YEO , Young Soon HEO
IPC: G02F1/1347 , G02F1/13363 , G02F1/135 , G02F1/1335 , G01J4/00
CPC classification number: G02F1/13473 , G02F1/0136 , G02F2001/0142 , G02F2201/58
Abstract: Disclosed is a polarimetric-analysis-type dual liquid crystal (LC) wavelength filter module capable of miniaturization or optical integration in the form of a package. The polarimetric-analysis-type dual liquid crystal (LC) wavelength filter module includes a beam displacer disposed on a propagation path of light of an unpolarized light source for emitting unpolarized light and configured to generate two orthogonal polarization components corresponding to two polarization axes from the light of the unpolarized light source such that the polarization components are separated at a predetermined angle, a half-wavelength retarder disposed apart at a rear end of the beam displacer along the light propagation path, and a dual LC wavelength-tunable filter having two LC wavelength-tunable filters that overlap with a gap therebetween to detect light intensities of first polarized light of a Transverse Electric (TE) mode that is directly delivered from the beam displacer and second polarized light of the TE mode that is transmitted through or via the half-wavelength retarder and then converted.
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Patent Agency Ranking
公开(公告)号：US20170146755A1
公开(公告)日：2017-05-25
申请号：US15091032
申请日：2016-04-05
Inventor： Jeong Eun KIM , Hyun Seo KANG , Hyoungjun PARK , Keo-Sik KIM , Ji Hyoung RYU , Eun Kyoung JEON , Young Soon HEO
CPC classification number: G02B6/4246 , G02B6/29362 , G02B6/325 , G02B6/4204 , G02B6/4215 , G02B6/4262 , G02B6/4263 , G02B6/4295
Abstract: A multi-channel optical module includes a stem configured to allow an optical active element transmitting and receiving an optical signal to be installed thereon, an optical module frame connected to the stem and configured to have an optical element forming an optical path corresponding to the optical active element, and an external housing configured to house the optical module frame therein and coupled to the stem, wherein the optical element includes a lens and a filter unit disposed in the optical path and an optical waveguide element to which an optical fiber is connected.
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公开(公告)号：US20170131557A1
公开(公告)日：2017-05-11
申请号：US15133988
申请日：2016-04-20
Inventor： Jeong Eun KIM , Hyun Seo KANG , Keo-Sik KIM , Ji Hyoung RYU , Hyoungjun PARK , Young Soon HEO
CPC classification number: G02B27/1006 , G02B27/14 , H01S5/005 , H01S5/0071 , H01S5/06206 , H01S5/4012 , H01S5/4087
Abstract: Provided is a multi-channel optical module device. The optical module device includes: a light source unit configured to include a plurality of laser diodes that are capable of wavelength modulation according to current; a beam splitter unit configured to include a plurality of beam splitters that have different reflectivity and transmissivity and reflect or transmit light output from each laser diode of the light source unit to output them in a first direction or a second direction; and an optical coupler configured to couple and output the light from the beam splitter unit. Center wavelengths of the laser diodes of the light source unit are different from each other, and the number of output channels varies according to the number of laser diodes.
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公开(公告)号：US20170125972A1
公开(公告)日：2017-05-04
申请号：US15209902
申请日：2016-07-14
Inventor： Jeong Eun KIM , Hyun Seo KANG , Keo Sik KIM , Ji Hyoung RYU , Hyoung Jun PARK , Kwon Seob LIM , Young Soon HEO
CPC classification number: H01S5/02212 , G02B6/42 , H01S5/0224 , H01S5/02252 , H01S5/02256 , H01S5/02284 , H01S5/02288 , H01S5/02415 , H01S5/4087
Abstract: Provided herein is a multi-channel optical module including a plurality of laser diodes emitting light with different wavelengths, a thermoelectric cooling device including the plurality of laser diodes, a TO-can including the thermoelectric cooling device, and a holder combined with the TO-can and including a plurality of optical lenses focusing the light with different wavelengths and a multiplexer gathering focused light into a single optical fiber, wherein the holder has a shape in which the TO-can is cut along an axis of a path of the light with different wavelengths for active alignment of the plurality of optical lenses.
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公开(公告)号：US20150214305A1
公开(公告)日：2015-07-30
申请号：US14500764
申请日：2014-09-29
Inventor： Eun Kyoung JEON , Hyun Seo KANG , Kwon-Seob LIM , Hyoung Jun PARK , Keo-Sik KIM , Jeong Eun KIM , Young Sun KIM , Young Soon HEO
IPC: H01L29/16 , H01L21/306 , H01L21/308 , H01L21/283
CPC classification number: H01L29/1606 , H01L21/3081
Abstract: Provided is a method of fabricating a graphene nano device. The method includes forming a first metal mask pattern on a substrate on which a graphene layer is formed, and forming a graphene pattern by performing an etching process on the graphene layer using the first metal mask pattern as an etching mask. The forming of the first metal mask pattern includes forming a first adhesive layer on the graphene layer, disposing the first metal mask pattern prepared in advance on the first adhesive layer, and heating the first adhesive layer to attach the first metal mask pattern on the substrate.
Abstract translation: 提供了一种制造石墨烯纳米器件的方法。 该方法包括在其上形成有石墨烯层的基板上形成第一金属掩模图案，并且通过使用第一金属掩模图案作为蚀刻掩模对石墨烯层进行蚀刻处理来形成石墨烯图案。 第一金属掩模图案的形成包括在石墨烯层上形成第一粘合剂层，将预先制备的第一金属掩模图案设置在第一粘合剂层上，并加热第一粘合剂层以将第一金属掩模图案附着在基板上 。
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公开(公告)号：US20150001196A1
公开(公告)日：2015-01-01
申请号：US14317630
申请日：2014-06-27
Inventor： Keo-Sik KIM , Hyun Seo KANG , Young Soon HEO , Hyoungjun PARK , Kwon-Seob LIM , Jeong Eun KIM , Eun Kyoung JEON
CPC classification number: B23K31/125 , B23K26/032 , B23K26/26 , B23K2101/18
Abstract: An apparatus for monitoring a laser welding bead irradiates a laser to a surface of a welding bead when welding with a laser welding machine, collects a signal reflected from the surface of the welding bead as an image signal, and then extracts at least one feature variable of a bead shape using the collected image signal. Then, the apparatus for monitoring the laser welding bead determines welding defects using the at least one feature variable, and controls an operation of the laser welding machine according to whether or not the welding defects are generated.
Abstract translation: 一种用于监测激光焊接焊道的装置，当用激光焊接机焊接时，将激光照射到焊道的表面，收集从焊道表面反射的信号作为图像信号，然后提取至少一个特征变量 使用所收集的图像信号的珠形。 然后，用于监视激光焊接焊道的装置使用至少一个特征变量来确定焊接缺陷，并且根据是否产生焊接缺陷来控制激光焊接机的操作。
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