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公开(公告)号：US11675220B2
公开(公告)日：2023-06-13
申请号：US16426861
申请日：2019-05-30
发明人： Dongsik Shim , Changgyun Shin , Changbum Lee
IPC分类号： G02F1/025 , H01S5/02 , H01L21/304 , G01S7/481 , H01S5/028 , H01S5/30 , H01S5/00 , H01S5/40 , G02F1/29
CPC分类号： G02F1/025 , G01S7/4814 , H01S5/0071 , H01S5/0201 , H01S5/021 , H01S5/0218 , H01S5/0282 , H01S5/3013 , H01S5/4025 , H01S5/4075 , G02F1/292 , G02F2203/24 , G02F2203/50 , H01S5/005 , H01S2301/176
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：US20230176448A1
公开(公告)日：2023-06-08
申请号：US18159947
申请日：2023-01-26
申请人： FUJIFILM Corporation
发明人： Takeshi KAMIYA , Shoki KASAHARA
摘要： An imaging apparatus of the present invention includes an imaging element, an observation unit that includes a correction lens for correcting a ray angle incident on an eye of a user, and with which a target to be imaged of the imaging element is observable, a storage unit that stores data related to astigmatism of the user, and a processor that controls the correction lens. The processor is configured to execute readout processing of reading out the data from the storage unit storing the data related to the astigmatism of the user, determination processing of determining an inclination of a second direction of the imaging element with respect to a first direction of the eye of the user, and adjustment processing of adjusting a correction amount of the ray angle by the correction lens based on the data read out by the readout processing and a result determined by the determination processing.
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公开(公告)号：US11662642B2
公开(公告)日：2023-05-30
申请号：US17842472
申请日：2022-06-16
发明人： Anthony Van Heugten , Harry Milton
CPC分类号： G02F1/29 , A61F2/16 , G02F1/13306 , G02F1/294 , G02F2201/122
摘要： Resistive bridges can connect many ring electrodes in an electro-active lens with a relatively small number of buss lines. These resistors are usually large to prevent excessive current consumption. Conventionally, they are disposed in the same plane as the ring electrodes, which means that the ring electrodes are spaced farther apart or made discontinuous to accommodate the resistors. But spacing the ring electrodes farther apart or making them discontinuous degrades the lens's optical quality. Placing the ring electrodes and resistors on layers separated by an insulator makes it possible for the ring electrodes to be closer together and continuous with resistance high enough to limit current consumption. It also relaxes constraints on feature sizes and placement during the process used to make the lens. And because the resistors and electrodes are on different planes, they can be formed of materials with different resistivities.
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公开(公告)号：US11656406B2
公开(公告)日：2023-05-23
申请号：US17123772
申请日：2020-12-16
发明人： Sunil Kim , Junghyun Park , Byounglyong Choi
CPC分类号： G02B6/12014 , G01S7/4817 , G01S17/36 , G02F1/292 , G02B2006/12104
摘要： A beam steering device and a system using the same are provided. The beam steering device includes a plurality of transmission type optical modulation devices provided to steer an incident beam in different directions, wherein each of the plurality of transmission type optical modulation devices includes: a phase modulator including a nanoantenna in which a plurality of nanostructure rows are arranged. Each of the nanostructure rows includes a plurality of nanostructures connected to each other. A meta surface includes the plurality of nanostructure rows. Each of the transmission type optical modulation devices also includes a plurality of drivers provided which independently apply an electric signal to each of the nanostructure rows to control a phase change thereof.
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公开(公告)号：US20230152453A1
公开(公告)日：2023-05-18
申请号：US18155064
申请日：2023-01-17
发明人： Yong Tae LEE , Mid Eum BAEK , Chang Su LEE , Hyo-Hoon PARK , Hyeonho YOON , Jae-Yong KIM
CPC分类号： G01S17/26 , G02F1/292 , G01S7/4816 , G02B6/125
摘要： An optical phased array device for a LIDAR sensor includes: a light source configured to irradiate a laser beam having a predetermined wavelength band; an input waveguide through which the laser beam irradiated from the light source passes; a slab waveguide disposed at an output end of the input waveguide to branch an optical signal input from the input waveguide; and a channel waveguide configured to distribute and guide the optical signal, branched by the slab waveguide, to M channels and to radiate the optical signal onto a free space. The channel waveguide may include a silia optical waveguide disposed for each of the M channels, and a length of each of the optical waveguides has a length difference ΔL from an adjacent waveguide.
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公开(公告)号：US20230146369A1
公开(公告)日：2023-05-11
申请号：US17759813
申请日：2021-01-27
申请人： LG INNOTEK CO., LTD.
发明人： Hyun Soo Kim , Han Ul Kwon , Yun Ho Noh , Jeong Gi You , Kap Jin Lee
摘要： An embodiment comprises a substrate, a lens barrel arranged on the substrate, and a lens unit arranged in the lens barrel, wherein: the lens unit includes a liquid lens unit; the liquid lens unit includes a holder, a liquid lens which is arranged in the holder and which includes an electrode, and a terminal unit arranged in the holder and electrically connected to the liquid lens; the terminal unit includes a first part coupled to the electrode of the liquid lens, a second part arranged in the holder, and a third part for connecting the first part and the second part; and the width of the third part is smaller than the width of the first part.
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公开(公告)号：US11640074B2
公开(公告)日：2023-05-02
申请号：US16932436
申请日：2020-07-17
发明人： Duhyun Lee , Changgyun Shin , Sunil Kim , Byounglyong Choi
摘要： A phase modulation active device and a method of driving the same are provided. The method may include configuring, for the phase modulation active device including a plurality of channels that modulate a phase of incident light, a phase profile indicating a phase modulation target value to be implemented by the phase modulation active device; setting a phase limit value of the phase modulation active device; generating a modified phase profile based on the phase profile by modifying the phase modulation target value, for at least one channel from the plurality of channels that meets or exceeds the phase limit value, to a modified phase modulation target value that is less than the phase limit value in the phase profile; and operating the phase modulation active device based on the modified phase profile. Thus, improved optical modulation performance may be achieved.
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公开(公告)号：US11619858B2
公开(公告)日：2023-04-04
申请号：US17160908
申请日：2021-01-28
IPC分类号： G02F1/295 , G02B6/12 , G02B27/00 , G02F1/035 , G02F1/13 , G02F1/1339 , G02F1/29 , G02B6/122 , G02B6/124 , G01S7/481 , G01S17/32
摘要： An optical device includes a first substrate, a second substrate, a plurality of separation walls, one or more optical waveguides, and one or more spacers. The first substrate has a surface which extends in a first direction and a second direction intersecting the first direction. The second substrate faces the first substrate. The plurality of separation walls are positioned between the first substrate and the second substrate and extend in the first direction. The one or more optical waveguides are positioned between the first substrate and the second substrate and include one or more dielectric members which are positioned between the plurality of separation walls and which extend in the first direction. The one or more spacers are directly or indirectly sandwiched between the first substrate and the second substrate and positioned around the one or more optical waveguides.
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公开(公告)号：US11585899B2
公开(公告)日：2023-02-21
申请号：US16489915
申请日：2018-02-28
申请人： Pointcloud Inc.
发明人： Remus Nicolaescu
摘要： Examples of a three-dimensional (3D) optical sensing system for a vehicle include a modular architecture. Light can be transmitted to an optical signal processing module, which can include a photonic integrated circuit (PIC) that can create one or more signals with tailored amplitude, phase, and spectral characteristics. The plurality of optical signals processed by the optical signal processing module can be sent to beam steering units distributed around the vehicle. The steering units can direct a plurality of optical beams towards targets. The return optical signal can be detected by a receiver PIC including an array of sensors and using a direct intensity detection technique or a coherent detection technique. The return optical signal can be converted into an electrical signal by the array of sensors, which can then be processed by the electronic signal processing unit, and information about the location and speed of the targets can be quantified.
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公开(公告)号：US20230017524A1
公开(公告)日：2023-01-19
申请号：US17378467
申请日：2021-07-16
发明人： Fenglin Peng , Ying Geng , Jacques Gollier , Giuseppe Calafiore , Alexander Koshelev , Mengfei Wang , Lu Lu
摘要： A display device includes a directional illuminator providing a light beam, a display panel downstream of a directional illuminator, for receiving and spatially modulating the light beam, and a beam redirecting module downstream of the display panel, for variably redirecting the spatially modulated light beam. Steering the illuminating light by the beam redirecting module enables one to steer the exit pupil of the display device to match the user's eye location(s).
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