-
公开(公告)号：US10754222B2
公开(公告)日：2020-08-25
申请号：US16190912
申请日：2018-11-14
发明人： Changgyun Shin , Dongjae Shin , Dongsik Shim , Changbum Lee
IPC分类号： G02F1/295 , H01S5/14 , H01S5/06 , H01S5/40 , H01S3/10 , H01S5/00 , H01S5/02 , H01S3/063 , H01S5/026
摘要： A light steering apparatus is provided including a tunable laser source and a system including the light steering apparatus. The light steering apparatus includes the tunable laser source and a steering device. A plurality of laser beams having optical coherence with each other and output from the tunable laser source are incident onto the steering device, and the steering device includes a plurality of modulation units for beam steering.
-
公开(公告)号：US11029398B2
公开(公告)日：2021-06-08
申请号：US15888537
申请日：2018-02-05
发明人： Inoh Hwang , Dongjae Shin , Jungwoo Kim , Tatsuhiro Otsuka , Heesun Yoon
摘要： Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.
-
公开(公告)号：US10249156B2
公开(公告)日：2019-04-02
申请号：US15807960
申请日：2017-11-09
发明人： Dongjae Shin , Kyungtae Kim , Sun-Kee Lee , Yo-Han Lee , Eun Jung Hyun
摘要： Disclosed are an apparatus and a method for providing a haptic effect in an electronic device. The electronic device includes at least one sensor, at least one processor, and a memory electrically coupled to the at least one processor, storing instructions executable by the at least one processor. The instructions implement the method, including detecting at least one haptic event related to content output by the electronic device, detecting movement information indicating movement of a haptic providing module electrically coupled to the electronic device, via the at least one sensor, wherein the haptic providing module includes one or more haptic actuators, and selecting at least one haptic actuator of the one or more haptic actuators based on at least one attribute of the at least one haptic event and the detected movement information.
-
公开(公告)号：US11513226B2
公开(公告)日：2022-11-29
申请号：US16886180
申请日：2020-05-28
发明人： Dongjae Shin , Hyunil Byun , Changgyun Shin , Bongyong Jang
IPC分类号： G01S17/42 , G01S7/4865 , G01S17/26 , G01S17/931 , G01S17/00
摘要： A light detection and ranging (LiDAR) apparatus capable of extracting speed information and distance information of objects in front thereof is provided. The LiDAR apparatus includes: a continuous wave light source configured to generate continuous wave light; a beam steering device configured to emit the continuous wave light to an object for a first time and stop emitting the continuous wave light to the object for a second time; a receiver configured to receive the continuous wave light that is reflected from the object to form a reception signal; and a signal processor configured to obtain distance information and speed information about the object based on the reception signal.
-
公开(公告)号：US20210384693A1
公开(公告)日：2021-12-09
申请号：US17095435
申请日：2020-11-11
发明人： Dongjae Shin , Hyunil Byun , Changgyun Shin
IPC分类号： H01S3/067
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.
-
公开(公告)号：US11119191B2
公开(公告)日：2021-09-14
申请号：US15861245
申请日：2018-01-03
发明人： Inoh Hwang , Dongjae Shin , Jungwoo Kim , Junghyun Park , Byunggil Jeong , Byounglyong Choi
IPC分类号： G01S7/48 , G02F1/29 , G02B27/00 , G01S7/00 , G02B26/10 , G01S17/06 , G01S7/4865 , G01S17/10 , G11B7/2433 , G02F1/01 , G01S17/89
摘要： A light detection and ranging (LiDAR) system is provided including a beam steering device configured to modulate a phase of light from a light source and to output light in a plurality of directions at the same time, a receiver including a plurality of light detection elements configured to receive light that has been irradiated onto an object in the plurality of directions from the beam steering device and reflected from the object, and a processor configured to analyze position-specific distribution and/or time-specific distribution of light received by the receiver and to individually process the light lights irradiated onto the object in the plurality of directions.
-
公开(公告)号：US10605901B2
公开(公告)日：2020-03-31
申请号：US15436111
申请日：2017-02-17
发明人： Eunkyung Lee , Chilhee Chung , Jungwoo Kim , Dongjae Shin , Byounglyong Choi , Kyoungho Ha
摘要： Beam steering devices and optical apparatuses including the beam steering devices are provided. A beam steering device includes a light source configured to generate input lights having first different wavelengths, a multiplexer configured to simultaneously receive the generated input lights, and multiplex the received input lights into a multiplexed light, and an optical splitter configured to split the multiplexed light. The beam steering device further includes an optical modulator configured to modulate the split light, and an emitter configured to simultaneously emit output lights having second different wavelengths to different points arranged in a first direction, based on the modulated light.
-
公开(公告)号：US11630262B2
公开(公告)日：2023-04-18
申请号：US17357503
申请日：2021-06-24
发明人： Dongjae Shin , Hyunil Byun , Jinmyoung Kim , Changgyun Shin , Changbum Lee
摘要： Provided is an optical isolator including a semiconductor substrate, an optical attenuator and an optical amplifier aligned with each other on the semiconductor substrate, an input optical waveguide connected to the optical attenuator, and an output optical waveguide connected to the optical amplifier, wherein a gain of the optical amplifier decreases based on an intensity of light incident on the optical amplifier increasing, wherein a first input light incident on the optical attenuator through the input optical waveguide is output as a first output light through the output optical waveguide, and a second input light incident on the optical amplifier through the output optical waveguide is output as a second output light through the input optical waveguide, and wherein when an intensity of the first input light and an intensity of the second input light are equal, an intensity of the first output light is greater than an intensity of the second output light.
-
公开(公告)号：US11614524B2
公开(公告)日：2023-03-28
申请号：US17313578
申请日：2021-05-06
发明人： Inoh Hwang , Dongjae Shin , Jungwoo Kim , Tatsuhiro Otsuka , Heesun Yoon
摘要： Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.
-
公开(公告)号：US11611397B1
公开(公告)日：2023-03-21
申请号：US17699553
申请日：2022-03-21
发明人： Hyunil Byun , Dongjae Shin , Changgyun Shin , Inoh Hwang
IPC分类号： H04B10/548 , H04B10/50
摘要： Provided is an optical modulating device including a substrate including first and second trenches, a phase modulator in a region of the substrate, the phase modulator including an undoped region provided between the first and the second trenches, and first and a second doped regions which are apart from each other with the undoped region therebetween, wherein the phase modulator is configured to modulate a phase of light traveling through the undoped region based on a first electrical signal applied to the phase modulator, an amplifier including a first doped layer, a quantum well layer, a clad layer, and a second doped layer sequentially on the substrate, the amplifier overlapping at least a portion of the phase modulator and being configured to amplify the light based on a second electrical signal applied to the amplifier, and an insulating layer between the phase modulator and the amplifier.
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.02 秒)