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公开(公告)号：US11976975B2
公开(公告)日：2024-05-07
申请号：US17571235
申请日：2022-01-07
Inventor： Keo Sik Kim , Kye Eun Kim , Jeong Eun 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: G01J3/2823 , G06N3/08 , G01J2003/2826
Abstract: Provided is an optical system which may acquire a hyperspectral image by acquiring a spectral image of an object to be measured, which includes, to collect spectral data and train the neural network, an image forming part forming an image from an object to be measured and transmitting collimated light, a slit moving to scan the incident image and passing and outputting a part of the formed image, and a first optical part obtaining spectral data by splitting light of the image received through the slit by wavelength. Also, the system includes, to decompose overlapped spectral data and to infer hyperspectral image data through the trained neural network, an image forming part forming an image from an object to be measured and transmitting collimated light, and a first optical part obtaining spectral data by splitting light of the received image by wavelength.
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2.发明授权公开(公告)号：US11454770B2
公开(公告)日：2022-09-27
申请号：US17002391
申请日：2020-08-25
Inventor： Young Soon Heo , Sung Chang Kim , Hyun Seo Kang , Chan Il Yeo , Ji Hyoung Ryu , Si Woong Park , Kye Eun Kim , Keo Sik Kim , Jeong Eun Kim , Gi Hyeon Min , Hyoung Jun Park , Dong Hoon Son , Mun Seob Lee
IPC: G02B6/42 , H04B10/112 , H04B10/58 , H04B10/66
Abstract: Provided are an apparatus and method for adjusting an optical axis. In the apparatus, an iris diaphragm and a quadrant photodiode (QPD) are used to align optical axes of an optical system of the apparatus so that optical transmission efficiency between an optical transmitter and an optical receiver can be increased. Since a hole of the iris diaphragm can be adjusted to be small, a beam larger than a light-receiving area of the QPD can be included in the light-receiving area, and optical axis alignment is facilitated accordingly. When the QPD and the iris diaphragm are applied to the apparatus, it is possible to simultaneously perform data transmission, tracking, and optical axis alignment. An optical fiber end surface and optical axes of lenses arranged in parallel are aligned in the apparatus so that alignment between two terminals can be easy and reception efficiency can be increased.
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公开(公告)号：US10884186B2
公开(公告)日：2021-01-05
申请号：US16741151
申请日：2020-01-13
Inventor： Hyun Jin Kim , Hyoung Jun Park , Sung Chang Kim , Kye Eun Kim , Ji Hyoung Ryu , Gi Hyeon Min , Si Woong Park , Dong Hoon Son , Chan Il Yeo
Abstract: A multi-channel receiver optical sub assembly module for a fiber Bragg grating sensor according to an embodiment of the present invention includes a housing, a connection socket, an optical bench, a thermoelectric cooler, an arrayed waveguide grating chip, a photodiode array disposed on the optical bench and including a plurality of photodiode chips connected to the optical channels of the arrayed waveguide grating chip, and a printed circuit board which is connected to the other side of the housing while passing through the other side of the housing, of which a portion of a body is disposed on the optical bench, and which is connected to the photodiode array.
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公开(公告)号：US10591714B2
公开(公告)日：2020-03-17
申请号：US15610010
申请日：2017-05-31
Inventor： Keo Sik Kim , Hyun Seo Kang , Sung Chang Kim , Young Sun Kim , Jeong Eun Kim , Hee Seung Kim , Ji Hyoung Ryu , Hyoung Jun Park , Dong Hoon Son , Chan Il Yeo , Young Soon Heo
Abstract: Provided is an endoscopic apparatus for thermal distribution monitoring, and more particularly, an endoscopic apparatus for thermal distribution monitoring that is capable of providing a functional image in which various images such as a real image and a thermal image, are matched to one another. The endoscopic apparatus includes: an image collecting unit including a thermal image collecting unit collecting a thermal image from an image signal of an object and a real image collecting unit collecting a real image from the image signal of the object; a controller transmitting a control signal to the image collecting unit so as to transmit the image signal to one of the thermal image collecting unit and the real image collecting unit according to a preset period; and a display displaying the collected thermal image and real image.
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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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Patent Agency Ranking
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：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：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：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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