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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。
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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.
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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.
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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.
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5.发明申请OPTICAL TRANSMITTER MODULE WITH TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING THE SAME 审中-公开具有温度控制装置的光发射模块及其制造方法公开(公告)号：US20150043166A1
公开(公告)日：2015-02-12
申请号：US14457359
申请日：2014-08-12
Inventor： Young Soon HEO , Hyun Seo KANG , Keo-Sik KIM , Young Sun KIM , Jeong Eun KIM , Hyoung Jun PARK , Kwon Seob LIM , Eun Kyoung JEON
CPC classification number: H04B10/503 , H04B10/0799 , H04B10/502 , Y10T29/49085
Abstract: The optical transmitter module may include a thermal-electric cooler comprising at least one metal pattern formed on a side of a cooling plate temperature of which is controlled by thermo-electric cooling elements, a laser diode installed in one of the at least one metal pattern, and a monitor photo diode which is installed in another one of the at least one metal pattern and monitors change of light signals emitted from the laser diode. Therefore, since elements are located on the same side of the cooling plate, the optical transmitter module may have a simple structure and an advantage that light signals emitted from the laser diode can be directly coupled to the optical fiber without optical path conversions. Also, since the laser diode is installed with a small gap from thermal-electric elements, the temperature control characteristics of the thermal-electric cooler can be enhanced.
Abstract translation: 光发射器模块可以包括热电冷却器，其包括形成在冷却板温度的一侧上的至少一个金属图案，其由热电冷却元件控制，激光二极管安装在至少一个金属图案之一中 以及安装在所述至少一个金属图案中的另一个中的监视器光电二极管，并且监视从所述激光二极管发射的光信号的变化。 因此，由于元件位于冷却板的同一侧，所以光发射器模块可以具有简单的结构和优点，即从激光二极管发射的光信号可以直接耦合到光纤而不进行光路转换。 此外，由于激光二极管与热电元件的间隙小，所以可以提高热电冷却器的温度控制特性。
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Patent Agency Ranking
公开(公告)号：US20140066781A1
公开(公告)日：2014-03-06
申请号：US13870546
申请日：2013-04-25
Inventor： Hyoung-Jun PARK , Hyun-Seo KANG , Keo-Sik KIM , Young-Sun KIM
IPC: A61B1/00
CPC classification number: A61B1/00009 , A61B1/00186
Abstract: A medical diagnosis device and a method for controlling the device that detect an abnormal portion of a diagnosis target early and accurately are provided. A medical diagnosis device according to an embodiment of the present invention includes: a light source configured to irradiate light onto a diagnosis target; an optical filter configured to filter out visible light and infrared light from light reflected from the diagnosis target and convert an optical path of the filtered visible or infrared light; a polarization beam splitter configured to polarize the infrared light filtered by the optical filter; a first image acquisition unit configured to acquire a first image from the visible light filtered by the optical fiber; and a second image acquisition unit configured to acquire a second image from the infrared light polarized by the polarization beam splitter.
Abstract translation: 提供了一种医疗诊断装置和用于早期准确地检测诊断目标的异常部分的装置的控制方法。 根据本发明实施例的医疗诊断装置包括：被配置为将光照射到诊断对象上的光源; 滤光器，被配置为从所述诊断对象物反射的光中过滤出可见光和红外光，并转换所述过滤的可见光或红外光的光路; 偏振分束器，其被配置为使由所述滤光器滤波的红外光偏振; 第一图像获取单元，被配置为从由所述光纤滤波的可见光获取第一图像; 以及第二图像获取单元，被配置为从由偏振分束器偏振的红外光获取第二图像。
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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
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.
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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.
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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.
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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.
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