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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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公开(公告)号：US10209440B2
公开(公告)日：2019-02-19
申请号：US15248874
申请日：2016-08-26
Inventor： Mun Seob Lee , Nack Woo Kim , Gi Hyeon Min , Byung-Tak Lee , Young Sun Kim , Sim-Kwon Yoon , Dae Won Choi
Abstract: An imaging sensor includes at least one fiber Bragg grating for filtering an image from a subject for wavelength bands, and an imaging device for converting an image transmitted through the fiber Bragg grating into a digital signal.
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公开(公告)号：US20170238017A1
公开(公告)日：2017-08-17
申请号：US15335558
申请日：2016-10-27
Inventor： Gi Hyeon Min , Nack Woo Kim , Mun Seob Lee , Byung-Tak Lee , Young Sun Kim
IPC: H04N19/62 , H04N19/36 , H04N19/597
CPC classification number: H04N19/62 , G03H1/0443 , G03H1/0866 , G03H2001/0447 , G03H2001/0469 , G03H2001/0471 , G03H2210/12 , G03H2222/24 , H04N19/36 , H04N19/597
Abstract: There are provided an image processing device and a processing method thereof. The image processing method includes obtaining an interference signal using a sample beam and a reference beam, transforming the interference signal by using a numerical signal processing method or an intensity mixing method to generate a transformed interference signal, and obtaining a three-dimensional (3D) phase image by using the interference signal and the transformed interference signal.
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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：US10462489B2
公开(公告)日：2019-10-29
申请号：US15335558
申请日：2016-10-27
Inventor： Gi Hyeon Min , Nack Woo Kim , Mun Seob Lee , Byung-Tak Lee , Young Sun Kim
IPC: H04N19/62 , H04N19/36 , H04N19/597 , G03H1/00
Abstract: There are provided an image processing device and a processing method thereof. The image processing method includes obtaining an interference signal using a sample beam and a reference beam, transforming the interference signal by using a numerical signal processing method or an intensity mixing method to generate a transformed interference signal, and obtaining a three-dimensional (3D) phase image by using the interference signal and the transformed interference signal.
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Patent Agency Ranking
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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8.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：US11009830B2
公开(公告)日：2021-05-18
申请号：US15843830
申请日：2017-12-15
Inventor： Mun Seob Lee , Gi Hyeon Min , Byung-Tak Lee , Seihyoung Lee , Dongsoo Lee
Abstract: A hologram image acquiring apparatus includes a linear polarizer that filters incident light reflected by an object into a polarized component of a specific angle; a spherical lens that partially converts light that is incident through the linear polarizer to a spherical waveform; and a phase shifter that converts a part of the light incident through the spherical lens to a plane waveform having a respective phase per pixel unit.
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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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