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公开(公告)号：US20230091098A1
公开(公告)日：2023-03-23
申请号：US18070173
申请日：2022-11-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Junghyun PARK , Tatsuhiro Otsuka , Duhyun Lee
Abstract: Provided is a beam scanning apparatus including a plurality of antenna resonators disposed two-dimensionally in a row direction and a column direction, a plurality of row voltage lines that are configured to provide a plurality of driving voltages in a row direction, respectively, a plurality of column voltage lines that are configured to provide a plurality of driving voltages in a column direction, respectively, and a driving voltage conversion circuit configured to control a driving voltage applied to each of the plurality of antenna resonators based on a driving voltage in the row direction that is provided from each of the plurality of row voltage lines and a driving voltage in the column direction that is provided from each of the plurality of column voltage lines.
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公开(公告)号：US11543527B2
公开(公告)日：2023-01-03
申请号：US16441544
申请日：2019-06-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghyun Park , Tatsuhiro Otsuka , Duhyun Lee
Abstract: Provided is a beam scanning apparatus including a plurality of antenna resonators disposed two-dimensionally in a row direction and a column direction, a plurality of row voltage lines that are configured to provide a plurality of driving voltages in a row direction, respectively, a plurality of column voltage lines that are configured to provide a plurality of driving voltages in a column direction, respectively, and a driving voltage conversion circuit configured to control a driving voltage applied to each of the plurality of antenna resonators based on a driving voltage in the row direction that is provided from each of the plurality of row voltage lines and a driving voltage in the column direction that is provided from each of the plurality of column voltage lines.
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公开(公告)号：US11256081B2
公开(公告)日：2022-02-22
申请号：US16416972
申请日：2019-05-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghyun Park , Sunil Kim , Duhyun Lee , Byunggil Jeong
Abstract: Provided are a beam scanning device and a system including the beam scanning device. The beam scanning device includes: a spatial light modulator configured to modulate a phase of a light for a corresponding pixel of a plurality of pixels; and a phase mask including a support plate arranged in an output direction of the light that is output from the spatial light modulator and a plurality of nanostructures arranged on the support plate differently for each of the plurality of pixels to control the phase of the light.
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公开(公告)号：US11108213B2
公开(公告)日：2021-08-31
申请号：US16804442
申请日：2020-02-28
Inventor： Duhyun Lee , Muhammad Alam , Ghazaleh Kafaie Shirmanesh , Harry Atwater , Pin Chieh Wu , Ragip Pala
Abstract: A light modulation element according to example embodiments includes a substrate; a first lower DBR layer on the substrate including a first material layer alternately stacked with a second material layer having a different refractive index from the first material layer; a second lower DBR layer on the first lower DBR layer with a surface area less than the first lower DBR layer and including a third material layer alternately stacked with a fourth material layer having a different refractive index from the third material layer; an active layer on the second lower DBR layer, including a semiconductor material having a multi-quantum well structure and having a refractive index that varies according to an applied voltage; and an upper DBR layer on the active layer including a fifth material layer alternately stacked with a sixth material layer having a different refractive index from the fifth material layer.
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公开(公告)号：US11092672B2
公开(公告)日：2021-08-17
申请号：US15483135
申请日：2017-04-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Byunggil Jeong , Jaeduck Jang , Duhyun Lee
Abstract: An optical scanning device includes a light source configured to emit first light in a first wavelength range and second light in a second wavelength range, a beam divider configured to allow the first light to travel in a first direction, and receive the second light, and allow the second light to travel in a second direction different from the first direction, a first optical modulator configured to receive the first light, and modulate a phase of the first light received by the first optical modulator to change a travelling direction of the first light received by the first optical modulator, and a second optical modulator configured to receive the second light, and modulate a phase of the second light received by the second optical modulator to change a travelling direction of the second light received by the second optical modulator.
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Patent Agency Ranking
公开(公告)号：US10788725B2
公开(公告)日：2020-09-29
申请号：US15700391
申请日：2017-09-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Duhyun Lee , Changgyun Shin , Jisoo Kyoung , Byounglyong Choi
Abstract: A phase modulation active device and a method of driving the phase modulation active device are provided. The phase modulation active device includes channels independently modulating a phase of incident light. The method includes selecting a first phase value and a second phase value to be used for the channels, setting a binary phase profile by allocating the selected first phase value or the selected second phase value to each of the channels quasi-periodically, in a sequence in which the channels are arranged, and driving the phase modulation active device, based on the set binary phase profile.
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公开(公告)号：US20200303888A1
公开(公告)日：2020-09-24
申请号：US16883394
申请日：2020-05-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil Kim , Duhyun Lee , Changbum Lee , Byounglyong Choi
Abstract: A laser beam steering device and a system including the laser beam steering device are provided. The laser beam steering device includes a refractive index change layer having a refractive index that changes based on an electrical signal; at least one antenna pattern disposed above the refractive index change layer; a wavelength selection layer disposed under the refractive index change layer and configured to correspond to a wavelength of a laser beam incident onto the laser beam steering device; and a driver configured to apply the electrical signal to the refractive index change layer.
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公开(公告)号：US10705406B2
公开(公告)日：2020-07-07
申请号：US15815188
申请日：2017-11-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil Kim , Jungwoo Kim , Duhyun Lee , Changgyun Shin , Byounglyong Choi
Abstract: A two-dimensional (2D) light modulating device may include a plurality of phase modulating elements and a circuit board. The plurality of phase modulating elements may include a meta surface having a nano-structure. The circuit board may be configured to independently control electrical signals that are respectively transmitted to the plurality of phase modulating elements. The circuit board may include a plurality of pixel circuit units. Each of the plurality of pixel circuit units may include a transistor and a capacitor.
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公开(公告)号：US10444355B2
公开(公告)日：2019-10-15
申请号：US15866998
申请日：2018-01-10
Inventor： Ragip Pala , Harry Atwater , Muhammad Alam , Duhyun Lee , Byunghoon Na , Seunghoon Han
Abstract: Provided are an optical modulating device and a system employing the same. The optical modulating device includes a phase modulator including a meta surface including a nanoantenna configured to couple light incident on the phase modulator, and including a quantum well layer having a multi-quantum well and configured to modulate a phase of light by modulating a refractive index according to an electrical control, and a reflective layer provided at on the phase modulator opposite to a side of the meta surface of the phase modulator and configured to resonate light coupled through the nanoantenna.
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公开(公告)号：US10261390B2
公开(公告)日：2019-04-16
申请号：US15686935
申请日：2017-08-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil Kim , Duhyun Lee , Changbum Lee , Byounglyong Choi
Abstract: A laser beam steering device and a system including the same are provided. The laser beam steering device includes a waveguide through which a laser beam passes, and a cladding layer disposed on the waveguide. The cladding layer has a refractive index which changes according to an electrical signal applied thereto and thus a phase of a laser beam passing through the waveguide may be changed.
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