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公开(公告)号：US20220221342A1
公开(公告)日：2022-07-14
申请号：US17571235
申请日：2022-01-07
发明人： 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
摘要： 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：US20210208535A1
公开(公告)日：2021-07-08
申请号：US16825571
申请日：2020-03-20
发明人： Gi Hyeon MIN , Keo Sik KIM , Hyun Seo KANG , Kye Eun KIM , Sung Chang KIM , Ji Hyoung RYU , Si Woong PARK , Hyoung Jun PARK , Dong Hoon SON , Chan Il YEO , Dong Soo LEE , Byung Tak LEE , Young Soon HEO
摘要： Provided are a system and method for digital holographic imaging which are not affected by external vibrations. The system for digital holographic imaging includes a light source and optical system section configured to split generated beams and including a sample through which the beams pass, a lens, and a grating disposed behind the lens; an object signal acquisition section configured to receive the split beams and acquire an interference signal; and an image processor configured to acquire a three-dimensional (3D) image of an object by using the acquired interference signal.
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公开(公告)号：US20190090726A1
公开(公告)日：2019-03-28
申请号：US16041427
申请日：2018-07-20
发明人： Hyoungjun PARK , Ji Hyoung RYU , Keo-Sik KIM , Hyun Seo KANG , Kyeeun KIM , Sung Chang KIM , Gi Hyeon MIN , Si Woong PARK , Dong Hoon SON , CHAN IL YEO , Dongsoo LEE , Young Soon HEO
摘要： Disclosed is an optical device. The optical device includes: a first WDM filter for dividing an optical signal transmitted through and reflected from a measured subject into an optical signal of an infrared band and a first optical signal through wavelength division multiplexing; a first LC tunable wavelength filter disposed at an output end of the first WDM filter, and selectively filtering the optical signal of the infrared band; a second WDM filter for dividing the first optical signal into an optical signal of a first visible light band and a second optical signal through wavelength division multiplexing; and a second LC tunable wavelength filter disposed at an output end of the second WDM filter, and selectively filtering the optical signal of the first visible light band.
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4.发明申请公开(公告)号：US20210063656A1
公开(公告)日：2021-03-04
申请号：US17002391
申请日：2020-08-25
发明人： 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分类号： G02B6/42 , H04B10/112 , H04B10/66 , H04B10/58
摘要： 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：US20180307181A1
公开(公告)日：2018-10-25
申请号：US15843830
申请日：2017-12-15
发明人： Mun Seob LEE , Gi Hyeon MIN , Byung-Tak LEE , Seihyoung LEE , Dongsoo LEE
CPC分类号： G03H1/0443 , G03H1/06 , G03H2001/0447 , G03H2001/0452 , G03H2223/22 , G03H2226/13
摘要： A hologram image acquiring apparatus may include: 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 different phase per pixel unit.
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公开(公告)号：US20230409003A1
公开(公告)日：2023-12-21
申请号：US18075511
申请日：2022-12-06
发明人： Jeong Eun KIM , Hyun Seo KANG , Keo Sik KIM , Kyeeun KIM , DAEGIL KIM , Gi Hyeon MIN , Si Woong PARK , Hyoungjun PARK , CHAN IL YEO , Aram LEE , Young Soon HEO
IPC分类号： G05B19/406 , G05B13/02
CPC分类号： G05B19/406 , G05B13/0265 , G05B2219/50193
摘要： A control method of an integrated facility safety control system predicts short-term safety of a facility by using an artificial intelligence (AI) model embedded in an intelligent edge interrogator and predicts long-term safety of the facility on the basis of long-term sensing data received from the intelligent edge interrogator by using an AI model embedded in a server. Accordingly, a server and an intelligent edge interrogator may divisionally perform an analysis operation on the short-term safety and long-term safety of facility on the basis of data collected from an optical fiber sensor, and thus, may solve a load of data concentrating on a server, a problem of computing power, and a network problem caused by massive data transmission.
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公开(公告)号：US20200310029A1
公开(公告)日：2020-10-01
申请号：US16741151
申请日：2020-01-13
发明人： 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
摘要： 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：US20170227707A1
公开(公告)日：2017-08-10
申请号：US15248874
申请日：2016-08-26
发明人： Mun Seob LEE , Nack Woo KIM , Gi Hyeon MIN , Byung-Tak LEE , Young Sun KIM , Sim-Kwon YOON , Dae Won CHOI
CPC分类号： G02B6/08 , G02B3/0056 , G02B6/021 , G02B6/32 , H04N5/2254 , H04N9/045
摘要： 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：US20240177865A1
公开(公告)日：2024-05-30
申请号：US18339453
申请日：2023-06-22
发明人： Jeong Eun KIM , Seihyoung LEE , Hyun Seo KANG , Gi Hyeon MIN , Kwang Su YUN , Kwon-Seob LIM
CPC分类号： G16H50/30 , A61B5/0073 , A61B5/026 , A61B5/447 , A61B5/7275
摘要： A method of predicting pressure ulcers is provided. The method includes predicting, by a first pressure ulcer predictor, occurrence of pressure ulcers of a patient to output first prediction result data, based on body data of the patient, predicting, by a second pressure ulcer predictor, occurrence of pressure ulcers of the patient to output second prediction result data, based on whole body pressure data of the patient, predicting, by a third pressure ulcer predictor, occurrence of pressure ulcers of the patient to output third prediction result data, based on skin image data of the patient, and concatenating the first to third prediction result data to output final prediction result data.
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公开(公告)号：US20220252451A1
公开(公告)日：2022-08-11
申请号：US17546627
申请日：2021-12-09
发明人： 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
摘要： 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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