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公开(公告)号：US10648860B2
公开(公告)日：2020-05-12
申请号：US15870012
申请日：2018-01-12
Inventor： Hyun Seo Kang , Kyeeun Kim , Keo-Sik Kim , Sung Chang Kim , Ji Hyoung Ryu , Gi Hyeon Min , Si Woong Park , Hyoungjun Park , Dong Hoon Son , Chan Il Yeo , Dongsoo Lee , Young Soon Heo
Abstract: Disclosed is a spectroscopic device including a planar lightwave circuit to which light passing through an optical fiber is input, a wavelength divider configured to divide a wavelength of light passing through the planar lightwave circuit, a beam splitter configured to divide a traveling direction of light passing through the wavelength divider into an external sample inlet and an internal sample inlet and adjust power of the divided light, a charge-coupled device (CCD) image sensor configured to covert light transmitted from the internal sample inlet to an electrical signal or convert light reflected by the external sample inlet to an electrical signal, a control and signal processor configured to process the electrical signal to indicate a light intensity based on each wavelength, and an input and output interface configured to perform a spectrum analysis for each wavelength using the processed electrical signal.
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Patent Agency Ranking
公开(公告)号：US20160146663A1
公开(公告)日：2016-05-26
申请号：US14797030
申请日：2015-07-10
Inventor： Hyoungjun Park , Kwon-Seob Lim , Hyun Seo Kang , Jaisang Koh , Keo-Sik Kim , Young Sun Kim , Jeong Eun Kim , Ji Hyoung Ryu , Eun Kyoung Jeon
CPC classification number: H04B10/07957 , H04B10/07955
Abstract: An optical wavelength and optical power measurement device is provided. The optical wavelength and optical power measurement device includes: an input unit in which an optical connector that emits communication light of an infrared ray wavelength region is connected; a filter unit that separates the communication light of an infrared ray wavelength region and light of a visible ray wavelength region; a sensing unit that communicates with a path of the communication light of an infrared ray wavelength region of the filter unit and in which a signal of the communication light of an infrared ray wavelength region is input; and an inspection unit that communicates with a path of the light of the visible ray wavelength region of the filter unit and that inspects a surface of the optical connector.
Abstract translation: 提供光波长和光功率测量装置。 光波长和光功率测量装置包括：连接发射红外线波长区域的通信光的光连接器的输入单元; 滤波器单元，其分离红外线波长区域的通信光和可见光线波长区域的光; 感测单元，其与所述滤波器单元的红外线波长区域的通信光的路径通信，并且其中输入了红外线波长区域的通信光的信号; 以及检查单元，其与过滤器单元的可见光波长区域的光的路径通信并且检查光学连接器的表面。
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公开(公告)号：US09759876B2
公开(公告)日：2017-09-12
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：US10222624B2
公开(公告)日：2019-03-05
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
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：US10209443B2
公开(公告)日：2019-02-19
申请号：US15804653
申请日：2017-11-06
Inventor： Hyun Seo Kang , Eun Kyoung Jeon , Jaisang Koh , Keo-Sik Kim , Sung Chang Kim , Jeong Eun Kim , Ji Hyoung Ryu , Hyoungjun Park , Dong Hoon Son , Chan Il Yeo , Dongsoo Lee , Seihyoung Lee , Young Soon Heo
IPC: H04J14/02 , H04B10/2513 , G02B6/12
Abstract: Disclosed is a multi-wavelength transmission apparatus including a wavelength divider to divide an optical signal by wavelength and output wavelength-divided optical signals to different positions, the optical signal being received from an optical circulator, a first cylindrical lens to diverge the wavelength-divided optical signals along an X axis and a Y axis and allow the wavelength-divided optical signals to be promoted in a Z-direction, a second cylindrical lens to diverge optical signals output from the first cylindrical lens along the X axis and the Y axis and allow the output optical signals to be promoted in the Z-direction, and a reflector to reflect optical signals output from the second cylindrical lens toward the second cylindrical lens, the first cylindrical lens being identical in shape to the second cylindrical lens and rotated by 90° in an Y-axial direction based on the second cylindrical lens.
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公开(公告)号：US10029334B2
公开(公告)日：2018-07-24
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
IPC: B23K26/02 , B23K31/12 , B23K26/03 , B23K26/26 , B23K101/18
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.
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