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公开(公告)号：US11698300B2
公开(公告)日：2023-07-11
申请号：US17546627
申请日：2021-12-09
Inventor： Jeong Eun Kim , Kye Eun Kim , Keo Sik Kim , Hyun Seo Kang , Hyun Jin Kim , Gi Hyeon Min , Si Woong Park , Hyoung Jun Park , Chan Il Yeo , Young Soon Heo
CPC classification number: G01J3/0208 , G01J3/021 , G01J3/18 , G01J3/2823 , G02B3/04 , G02B26/0833 , G02B27/30 , G01J2003/2826 , G02B2003/0093
Abstract: Provided are an optical system capable of improving the spatial resolution of hyperspectral imaging and an optical alignment method using the same. The optical system includes a digital micromirror device (DMD) having a rectangular shape, a first cylindrical lens curved to focus and form an image on an axis corresponding to a shorter side of the DMD, and a second cylindrical lens curved in the same axial direction as the axis to collimate light reflected from the DMD.
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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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公开(公告)号：US09823485B2
公开(公告)日：2017-11-21
申请号：US15209925
申请日：2016-07-14
Inventor： Hee Seung Kim , Hyun Seo Kang , Sei Hyoung Lee , Soo Yong Jung
IPC: G02F1/1335 , F21V8/00 , G02B27/26 , G02F1/13363
CPC classification number: G02B27/26 , G02B5/00 , G02B6/0038 , G02F1/133536 , G02F1/13363 , G02F2001/133638 , G02F2203/12 , H04N13/128 , H04N13/346
Abstract: A display device includes a display panel, and a depth perception adjusting unit for adjusting a depth perception, based on polarization characteristics of light output from the display panel, wherein the depth perception adjusting unit includes a directional mirror and a reflective polarizer. Thus, the display device is implemented such that the directional mirror transmits or reflects light depending on an advancing direction of the light. Accordingly, any crosstalk phenomenon does not occur, and a depth perception can be adjusted without any loss of brightness efficiency.
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公开(公告)号：US09768866B2
公开(公告)日：2017-09-19
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
IPC: G01J1/04 , H04B10/079
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.
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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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Patent Agency Ranking
公开(公告)号：US09020308B2
公开(公告)日：2015-04-28
申请号：US13693081
申请日：2012-12-04
Inventor： Kwon-Seob Lim , Seihyoung Lee , Hyun Seo Kang
CPC classification number: G02B6/3628 , G02B6/4214 , G02B6/423 , G02B6/4245 , G02B6/4246 , G02B6/4249
Abstract: The multi-channel optical module in accordance with some embodiments of the inventive may comprise a housing; an optical fiber disposed on one side of the housing; a plurality of optical devices disposed on the other side of the housing separated from the optical fiber; and a polyhedral mirror disposed between the optical devices and having mirror sides reflecting an optical signal between the optical fiber and the optical devices.
Abstract translation: 根据本发明的一些实施例的多通道光学模块可以包括壳体; 设置在所述壳体一侧的光纤; 设置在与光纤分离的壳体另一侧的多个光学装置; 以及设置在光学装置之间并具有反射光纤和光学装置之间的光信号的镜面的多面体镜。
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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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