-
公开(公告)号：US20150102802A1
公开(公告)日：2015-04-16
申请号：US14172533
申请日：2014-02-04
Inventor： Hyoungjun PARK , Young Soon HEO , Kwon-Seob LIM , Keo-Sik KIM , Eun Kyoung JEON , Jeong Eun KIM , Hyun Seo KANG , Young Sun KIM
IPC: G01R19/00
CPC classification number: G01R15/246 , G01R15/247
Abstract: An optical fiber current sensor includes a transmitter optical subassembly (TOSA) that is formed in a package of a linear polarizer that applies light from a light source to a sensor coil that is formed with an optical fiber by linearly polarizing, a polarization beam splitter that separates light that is reflected from the sensor coil according to polarization, and a receiver optical subassembly (ROSA) that is formed in a package together with first and second photodetectors that detect separated light according to polarization.
Abstract translation: 一种光纤电流传感器包括：发射器光学子组件（TOSA），其形成在线性偏振器的封装中，该线性偏振器将来自光源的光施加到通过线偏振形成的光纤的传感器线圈;偏振分束器， 根据偏振分离从传感器线圈反射的光;以及接收器光学子组件（ROSA），其与根据偏振检测分离的光的第一和第二光电检测器一起形成在封装中。
-
公开(公告)号：US20230409003A1
公开(公告)日：2023-12-21
申请号：US18075511
申请日：2022-12-06
Inventor： 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: G05B19/406 , G05B13/02
CPC classification number: G05B19/406 , G05B13/0265 , G05B2219/50193
Abstract: 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.
-
公开(公告)号：US20180128978A1
公开(公告)日：2018-05-10
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
CPC classification number: G02B6/12009 , G02B27/00 , H04J14/0202 , H04J14/0215 , H04J14/022 , H04J14/0256
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.
-
公开(公告)号：US20190146296A1
公开(公告)日：2019-05-16
申请号：US15918718
申请日：2018-03-12
Inventor： CHAN IL YEO , Dong Hoon SON , Hyun Seo KANG , Keo-Sik KIM , Kyeeun KIM , Sung Chang KIM , Ji Hyoung RYU , Gi Hyeon MIN , Si Woong PARK , Hyoungjun PARK , Dongsoo LEE , Young Soon HEO
IPC: G02F1/163 , G02F1/133 , G02F1/157 , G02F1/1335
Abstract: Disclosed is a variable optical attenuator. The variable optical attenuator includes an electrochromic device having a reflective property or a transflective property, a lens configured to convert input light to focused light or collimated light and input the focused light or the collimated light to the electrochromic device, and an outputter configured to output light reflected from the electrochromic device, in which the electrochromic device is configured to attenuate an intensity of the input light by controlling a reflectivity and a transmissivity of the input light based on an element included in the electrochromic device and a voltage to be applied to the electrochromic device.
-
公开(公告)号：US20190128733A1
公开(公告)日：2019-05-02
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
IPC: G01J3/02
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.
-
Patent Agency Ranking
公开(公告)号：US20190090726A1
公开(公告)日：2019-03-28
申请号：US16041427
申请日：2018-07-20
Inventor： 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
Abstract: 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.
-
公开(公告)号：US20180252579A1
公开(公告)日：2018-09-06
申请号：US15825303
申请日：2017-11-29
Inventor： Hyun Seo KANG , Jeong Eun KIM , Jaisang KOH , Keo-Sik KIM , Sung Chang KIM , Hee Seung KIM , Ji Hyoung RYU , Hyoungjun PARK , Dong Hoon SON , CHAN IL YEO , Young Soon HEO
CPC classification number: G01J3/0227 , G01J3/10 , G01J2003/102 , G09G3/2003
Abstract: An integrated optical measurement apparatus includes: an optical signal transmission unit varying a wavelength of an optical signal to be transmitted and controlling power of the optical signal such that the wavelength is varied to be output to the outside; an optical signal receiving unit measuring power and a wavelength from the optical signal input from the outside; and a controller controlling the optical signal transmission unit and the optical signal receiving unit.
-
公开(公告)号：US20170146755A1
公开(公告)日：2017-05-25
申请号：US15091032
申请日：2016-04-05
Inventor： Jeong Eun KIM , Hyun Seo KANG , Hyoungjun PARK , Keo-Sik KIM , Ji Hyoung RYU , Eun Kyoung JEON , Young Soon HEO
CPC classification number: G02B6/4246 , G02B6/29362 , G02B6/325 , G02B6/4204 , G02B6/4215 , G02B6/4262 , G02B6/4263 , G02B6/4295
Abstract: A multi-channel optical module includes a stem configured to allow an optical active element transmitting and receiving an optical signal to be installed thereon, an optical module frame connected to the stem and configured to have an optical element forming an optical path corresponding to the optical active element, and an external housing configured to house the optical module frame therein and coupled to the stem, wherein the optical element includes a lens and a filter unit disposed in the optical path and an optical waveguide element to which an optical fiber is connected.
-
公开(公告)号：US20170131557A1
公开(公告)日：2017-05-11
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
CPC classification number: G02B27/1006 , G02B27/14 , H01S5/005 , H01S5/0071 , H01S5/06206 , H01S5/4012 , H01S5/4087
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.
-
公开(公告)号：US20150001196A1
公开(公告)日：2015-01-01
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
CPC classification number: B23K31/125 , B23K26/032 , B23K26/26 , B23K2101/18
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.
Abstract translation: 一种用于监测激光焊接焊道的装置，当用激光焊接机焊接时，将激光照射到焊道的表面，收集从焊道表面反射的信号作为图像信号，然后提取至少一个特征变量 使用所收集的图像信号的珠形。 然后，用于监视激光焊接焊道的装置使用至少一个特征变量来确定焊接缺陷，并且根据是否产生焊接缺陷来控制激光焊接机的操作。
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.016 seconds)
