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公开(公告)号：US09534889B2
公开(公告)日：2017-01-03
申请号：US14505747
申请日：2014-10-03
Inventor： Jeong Eun Kim , Hyun Seo Kang , Hyoung Jun Park , Young Soon Heo , Keo Sik Kim , Eun Kyoung Jeon , Kwon Seob Lim , Young Sun Kim
CPC classification number: G01B17/025 , G01B11/0666
Abstract: Provided is an apparatus that measures a thickness of a coating by selecting a wavelength of a laser based on a color of the coating using a contactless method using a photoacoustic effect and an interferometer, the apparatus including a pulsed laser source to irradiate a pulsed laser beam toward the coating, a continuous wave (CW) laser source to irradiate a CW laser beam toward the coating, a detector to detect an optical interference signal corresponding to the CW laser beam, and a signal processor to process the optical interference signal to calculate a thickness of the coating.
Abstract translation: 提供了一种通过使用光声效应和干涉仪的非接触式方法来选择基于涂层的颜色的激光的波长来测量涂层的装置，该装置包括用于照射脉冲激光束的脉冲激光源 向涂层提供连续波（CW）激光源，以朝向涂层照射CW激光束;检测器，用于检测对应于CW激光束的光学干涉信号;以及信号处理器，用于处理光学干涉信号以计算 涂层厚度。
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公开(公告)号：US08730578B1
公开(公告)日：2014-05-20
申请号：US13782150
申请日：2013-03-01
Inventor： Young Soon Heo , Hyun Seo Kang , Young Sun Kim , Hyoung Jun Park , Kwon-Seob Lim , Keo-Sik Kim , Eun Kyoung Jeon
IPC: G02B17/00
CPC classification number: G02B19/0042 , G02B6/0006 , G02B6/06 , G02B6/262
Abstract: A sunlight coupler is provided, the sunlight coupler may include a beam integrator configured to concentrate beams of sunlight, which may be incident from a plurality of optical fibers, in the form of a single beam, a triplet lens focusing the concentrated beam on a specific position, and an optical fiber provided for transmission of the focused sunlight. The optical fiber may be a thermally-diffusion expand core fiber.
Abstract translation: 提供了一种太阳光耦合器，太阳光耦合器可以包括光束积分器，该光束积分器被配置为将单个光束形式的可能从多根光纤入射的太阳光束集中在一起，将聚光束聚焦在特定的光束上 位置，以及为聚焦太阳光的透过而设置的光纤。 光纤可以是热扩散膨胀芯纤维。
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公开(公告)号：US10833763B2
公开(公告)日：2020-11-10
申请号：US16699964
申请日：2019-12-02
Inventor： Hyun Seo Kang , Chan Il Yeo , Young Soon Heo , Kye Eun Kim , Sung Chang Kim , Ji Hyoung Ryu , Si Woong Park , Keo Sik Kim , Gi Hyeon Min , Hyoung Jun Park , Dong Hoon Son , Mun Seob Lee
IPC: H04B10/00 , H04B10/112 , H04B10/40 , H04J14/00 , H04J14/02
Abstract: A wireless optical communication apparatus for performing bi-directional optical transmission in a free space includes a first optical system configured to transmit data through a downlink scheme and a second optical system configured to receive the data from the first optical system and transmit a control signal to the first optical system through an uplink scheme, wherein each of the first optical system and the second optical system transmits and receives the data and the control signal through a single port.
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公开(公告)号：US10338326B2
公开(公告)日：2019-07-02
申请号：US15581852
申请日：2017-04-28
Inventor： Jeong Eun Kim , Hyun Seo Kang , Keo Sik Kim , Sung Chang Kim , Young Sun Kim , Ji Hyoung Ryu , Hyoung Jun Park , Dong Hoon Son , Chan Il Yeo , Young Soon Heo
Abstract: Provided are a multi-channel optical subassembly structure allowing an optical unit including a light source photodetector chip to be fixed through an alignment jig after active alignment is performed on an individual or single light source photodetector chip by using the alignment jig capable of electrical coupling and one electrode pad and the other electrode pad of a thermoelectric element, which are wire-bonded, capable of performing active alignment for each light source photodetector chip, that is, for each channel, capable of replacing the optical unit and the alignment jig when a problem occurs in some or all channels, capable of improving optical coupling efficiency for each channel, and capable of addressing a time-consuming and economically expensive work in which an optical subassembly is discarded when some channels fail, and a method of packaging the structure.
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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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Patent Agency Ranking
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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17.发明授权公开(公告)号：US10057451B2
公开(公告)日：2018-08-21
申请号：US14869573
申请日：2015-09-29
Inventor： Jeong Eun Kim , Hyun Seo Kang , Hyoung Jun Park , Dae Won Choi , Jai Sang Koh , Keo Sik Kim , Young Sun Kim , Ji Hyoung Ryu , Kwon Seob Lim , Eun Kyoung Jeon , Young Soon Heo
IPC: H04N1/21 , G03B15/14 , G03B15/02 , F21V21/30 , F21V21/26 , F21V21/14 , F21S2/00 , F21V14/02 , A61B90/30 , F21W131/20 , F21W131/205 , F21Y115/10
CPC classification number: H04N1/2112 , A61B90/30 , F21S2/005 , F21V14/02 , F21V21/14 , F21V21/26 , F21V21/30 , F21W2131/20 , F21W2131/205 , F21Y2115/10 , G03B15/02 , G03B15/14 , G03B2215/0567
Abstract: Disclosed herein are an astral lamp device having detachable and angle-controllable LED module blocks and a method of setting the same. The astral lamp device having detachable and angle-controllable LED module blocks, includes a plurality of LED module blocks having one end attached to and disposed on a central frame; and an angle control part configured to control an angle of the LED module block attached to the central frame.
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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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公开(公告)号：US10018791B2
公开(公告)日：2018-07-10
申请号：US15709247
申请日：2017-09-19
Inventor： Young Soon Heo , Hyun Seo Kang , Keo Sik Kim , Sung Chang Kim , Young Sun Kim , Jeong Eun Kim , Hee Seung Kim , Ji Hyoung Ryu , Hyoung Jun Park , Dong Hoon Son , Chan Il Yeo
CPC classification number: G02B6/423 , G02B6/4244 , G02B6/4249 , G02B6/425 , G02B6/428
Abstract: Provided is a multi-channel optical subassembly. The multi-channel optical subassembly includes a first sub-mount including first and second areas having different thicknesses, a photoelectric device provided in the first area, a circuit board provided in the second area, a second sub-mount inserted into and fastened to the first guide hole and coupled to the first sub-mount, an optical fiber array fixed to the second sub-mount to provide a path through which light emitted from the photoelectric device is received or transferred, and a micro-lens array mounted on the second sub-mount. The first guide hole is provided in one of the first and second areas. The micro-lens array includes a lens collecting the light between the photoelectric device and the optical fiber array.
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公开(公告)号：US09857535B2
公开(公告)日：2018-01-02
申请号：US15096171
申请日：2016-04-11
Inventor： Young Soon Heo , Hyun Seo Kang , Keo Sik Kim , Jeong Eun Kim , Ji Hyoung Ryu , Hyoung Jun Park
CPC classification number: G02B6/29367 , G02B6/2938 , G02B6/32 , G02B6/4208 , G02B6/4221 , G02B6/4227 , G02B6/4263
Abstract: A method of packaging a multi-channel optical receiver module and a package of the same are provided. The method includes installing a first lens on a sub-mount; aligning an optical block including a plurality of filters on the sub-mount; installing the aligned optical block on the sub-mount; aligning a second lens on the sub-mount; installing the aligned second lens on the sub-mount; and coupling the sub-mount to a TO-stem. The aligning of the optical block transmits light incident through the first lens to the plurality of filters, transmits light beams transmitted through the plurality of filters to an object lens, monitors positions of and intervals between the light beams transmitted through an infrared (IR) camera and aligns the optical block so that the intervals between the light beams transmitted through the plurality of filters are identical.
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