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公开(公告)号：US11808894B2
公开(公告)日：2023-11-07
申请号：US17158732
申请日：2021-01-26
发明人： Dongjae Shin , Hyunil Byun , Jinmyoung Kim , Changgyun Shin
IPC分类号： G01C3/08 , G01S7/4911 , G01S17/32 , G01S17/931
CPC分类号： G01S7/4911 , G01S17/32 , G01S17/931
摘要： A light detection and ranging (LiDAR) device includes a transmitter configured to transmit a continuous wave light to an object and provide a local oscillator (LO) light corresponding to the transmitted continuous wave light; a delay circuit configured to time delay the LO light; a receiver configured to receive the continuous wave light reflected from an object; and a detection circuit configured to determine a distance from the LiDAR device to the object based on the time delayed LO light and the received continuous wave light.
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公开(公告)号：US11675057B2
公开(公告)日：2023-06-13
申请号：US17360775
申请日：2021-06-28
发明人： Junghyun Park , Jungwoo Kim , Byunggil Jeong , Changgyun Shin , Byounglyong Choi
CPC分类号： G01S7/4817 , G01S17/89 , G01S17/90 , G02F1/0102 , G02F1/0121 , G02F1/19
摘要： A beam scanning apparatus includes a light source configured to emit light, and a reflective phased array device configured to reflect the light emitted from the light source and incident on the reflective phased array device, and electrically adjust a reflection angle of the reflected light reflected by the reflective phased array device, wherein the light source and the reflective phased array device are disposed such the light is incident on the reflective phased array device at an incidence angle with respect to a normal of a reflective surface of the reflective phased array device.
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公开(公告)号：US10969601B2
公开(公告)日：2021-04-06
申请号：US16883435
申请日：2020-05-26
发明人： Sunghyun Nam , Sookyoung Roh , Seokho Yun , Changgyun Shin , Hyungue Hong
IPC分类号： G02B27/42 , G02B27/10 , G02B3/00 , H01L27/146 , H04N9/07
摘要： Color separation devices, and image sensors including the color separation devices and color filters, include at least two transparent bars that face each other with a gap therebetween. Mutually-facing surfaces of the at least two transparent bars are separated from each other by the gap such that the at least two transparent bars allow diffraction of visible light passing therebetween. The at least two transparent bars have a refractive index greater than a refractive index of a surrounding medium.
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4.发明申请公开(公告)号：US20200183196A1
公开(公告)日：2020-06-11
申请号：US16426861
申请日：2019-05-30
发明人： Dongsik SHIM , Changgyun Shin , Changbum Lee
摘要： Provided in a method of fabricating an optical element array including providing a silicon substrate, providing a first element layer on the silicon substrate, the first element layer including a plurality of passive optical elements, providing a plurality of semiconductor blocks on a compound semiconductor wafer, providing semiconductor dies by dicing the compound semiconductor wafer by the plurality of semiconductor blocks, and providing a second element layer by providing the semiconductor dies on the first element layer, each of the plurality of semiconductor blocks contacting at least one corresponding passive optical element from among the plurality of passive optical elements.
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公开(公告)号：US10274756B2
公开(公告)日：2019-04-30
申请号：US15364796
申请日：2016-11-30
发明人： Sunil Kim , Changgyun Shin , Duhyun Lee , Jungwoo Kim
摘要： A meta device includes a plurality of meta structures that spaced apart from each other and reflect at least a portion of incident light, a plurality of electrodes that are spaced apart from each other, and a controller configured to control a phase shift of reflected light using a voltage applied to the plurality of electrodes.
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公开(公告)号：US20240201385A1
公开(公告)日：2024-06-20
申请号：US18591472
申请日：2024-02-29
发明人： Dongjae SHIN , Jisan Lee , Hyunil Byun , Changgyun Shin , Inoh Hwang
IPC分类号： G01S17/894 , G01S7/4865 , G01S17/04
CPC分类号： G01S17/894 , G01S17/04 , G01S7/4865
摘要： An object detection device may include: a converter configured to convert a transmission signal radiated towards an object into a digital transmission signal and a received signal reflected from the object into a digital received signal, according to a predetermined sampling period; and at least one processor configured to: interpolate between elements of the digital transmission signal and the digital received signal that have the predetermined sampling period, to obtain an interpolated transmission signal and an interpolated received signal; remove noise from each of the interpolated transmission signal and the interpolated received signal; generate a cross-correlation signal between the interpolated transmission signal from which the noise is removed and the interpolated received signal from which the noise is removed; and acquire a three-dimensional (3D) image of the object based on at least one peak value of the cross-correlation signal.
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公开(公告)号：US12015237B2
公开(公告)日：2024-06-18
申请号：US17095435
申请日：2020-11-11
发明人： Dongjae Shin , Hyunil Byun , Changgyun Shin
IPC分类号： H01S3/10 , G01S7/481 , H01S3/063 , H01S3/08031 , H01S3/082 , H01S3/083 , H01S3/106 , H01S5/00 , H01S5/02 , H01S5/06 , H01S5/065 , H01S5/10 , H01S5/14
CPC分类号： H01S3/10023 , H01S3/0637 , H01S5/0071 , H01S5/0612 , H01S5/0654 , H01S5/1071 , H01S5/142 , G01S7/4814 , G01S7/4817 , H01S3/08031 , H01S3/082 , H01S3/0826 , H01S3/083 , H01S3/106 , H01S5/021 , H01S5/0218
摘要： Provided is a tunable laser source including a plurality of optical waveguides, at least three optical resonators provided between the plurality of optical waveguides and optically coupled to the plurality of optical waveguides, the at least three optical resonators having different lengths, and at least one optical amplifier provided on at least one of the plurality of optical waveguides, wherein a ratio of a first length of a first optical resonator of the at least three optical resonators to a second length of a second optical resonator of the at least three optical resonators is not an integer.
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公开(公告)号：US11968848B2
公开(公告)日：2024-04-23
申请号：US17071364
申请日：2020-10-15
发明人： Seunghoon Han , Kwanghee Lee , Yongwan Jin , Yongsung Kim , Changgyun Shin , Jeongyub Lee , Amir Arbabi , Andrei Faraon , Yu Horie
IPC分类号： H10K39/32 , H01L27/146
CPC分类号： H10K39/32 , H01L27/14621 , H01L27/14636 , H01L27/14645
摘要： An image sensor includes a first light sensor layer including light sensing cells configured to sense first light of an incident light and generate electrical signals based on the sensed first light, and a color filter array layer disposed on the first light sensor layer, and including color filters respectively facing the light sensing cells. The image sensor further includes a second light sensor layer disposed on the color filter array layer, and configured to sense second light of the incident light and generate an electrical signal based on the sensed second light. Each of the color filters includes a nanostructure including a first material having a first refractive index, and a second material having a second refractive index greater than the first refractive index, the first material and the second material being alternately disposed with a period.
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公开(公告)号：US11454808B2
公开(公告)日：2022-09-27
申请号：US16865554
申请日：2020-05-04
发明人： Hyunsung Park , Seunghoon Han , Hyeonsoo Park , Changgyun Shin
摘要： Provided is a metalens including a first metasurface including a plurality of first nanostructures disposed based on a first shape distribution, and a second metasurface spaced apart from the first metasurface at a distance greater than a central wavelength of a predetermined wavelength band, the second metasurface including a plurality of second nanostructures disposed based on a second shape distribution, wherein the metalens provides chromatic aberration for light in the predetermined wavelength band.
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公开(公告)号：US11428961B2
公开(公告)日：2022-08-30
申请号：US16523530
申请日：2019-07-26
发明人： Changbum Lee , Changgyun Shin , Byounglyong Choi
摘要： A variable wavelength light source and an apparatus including the same are disclosed. The variable wavelength light source includes: a first waveguide; a second waveguide spaced apart from the first waveguide; a first optical amplifier including a first gain medium; and a second optical amplifier including a second gain medium that is different from the first gain medium.
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