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    Polarization-variable element
    3.
    发明授权
    Polarization-variable element 有权

    公开(公告)号：US12050371B2

    公开(公告)日：2024-07-30

    申请号：US17601817

    申请日：2020-04-16

    Applicant: LG Chem, Ltd.

    Inventor： Eun Jung Lim ,  Dong Hyun Oh ,  Jung Sun You ,  Jin Hong Kim ,  Hyun Jun Lee

    IPC: G02F1/01 ,  G02F1/137

    CPC classification number: G02F1/0136 ,  G02F1/0126 ,  G02F1/13725

    Abstract: The present application relates to a polarization-variable element. The polarization-variable element of the present application has a fast response speed and excellent variable characteristics of polarization degree and transmittance. Such polarization-variable element may be applied to various applications including various architectural or vehicle materials requiring transmittance-variable characteristics, or eyewear such as goggles for augmented reality experience sports, sunglasses or helmets.

    Broadband faraday rotator
    4.
    发明授权
    Broadband faraday rotator 有权

    公开(公告)号：US12044906B2

    公开(公告)日：2024-07-23

    申请号：US17283556

    申请日：2019-10-08

    Applicant: Soreq Nuclear Research Center

    Inventor： Bruno Sfez

    IPC: G02F1/01 ,  G02F1/09

    CPC classification number: G02F1/0136 ,  G02F1/093

    Abstract: An apparatus includes a dispersive-collimating element, a Faraday material apparatus and a focusing-dispersive element. The dispersive-collimating element assigns each beam wavelength to a particular spatial position. The beams are parallel one to the other. The Faraday material apparatus provides a polarization rotation independently for each wavelength, and the focusing-dispersive element recombines the different wavelengths into one single beam.

    INVERSE DESIGNED OPTICAL MODULATOR
    6.
    发明公开
    INVERSE DESIGNED OPTICAL MODULATOR 审中-公开

    公开(公告)号：US20240184148A1

    公开(公告)日：2024-06-06

    申请号：US17970141

    申请日：2022-10-20

    Applicant: X Development LLC

    Inventor： Aleksandra Spyra ,  Ian Alexander Durant Williamson ,  Alfred Ka Chun Cheung

    IPC: G02F1/01 ,  G02B6/122 ,  G02F1/00

    CPC classification number: G02F1/0123 ,  G02B6/1225 ,  G02F1/0018 ,  G02F1/0136 ,  G02B2006/12142

    Abstract: An optical modulator includes a modulation region, an input port, an output port, and a modulation actuator. The modulation region includes an inhomogeneous arrangement of two or more different materials having different refractive indexes to structure the modulation region to manipulate one or more optical properties of an optical carrier wave in response to a modulation bias. The input port is optically coupled to the modulation region to inject the optical carrier wave into the modulation region. The modulation actuator is disposed proximate to the modulation region and adapted to apply the modulation bias to the modulation region to generate a modulated wave. The modulation bias adjusts at least one of the different refractive indexes of the inhomogeneous arrangement to provide variable control of the one or more optical properties of the optical carrier wave. The output port is optically coupled to the modulation region to receive the modulated wave.

    POLARIZATION INTERFERENCE PATTERN GENERATION FOR DEPTH SENSING
    7.
    发明公开
    POLARIZATION INTERFERENCE PATTERN GENERATION FOR DEPTH SENSING 审中-公开

    公开(公告)号：US20240175676A1

    公开(公告)日：2024-05-30

    申请号：US18071298

    申请日：2022-11-29

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Yun-Han LEE ,  Scott Charles MCELDOWNEY ,  Lu LU ,  Mantas ZURAUSKAS ,  Qing CHAO

    IPC: G01B11/22 ,  G02F1/01

    CPC classification number: G01B11/22 ,  G02F1/0136 ,  G02B27/283

    Abstract: According to examples, a depth sensing apparatus may include an illumination source to output a light beam onto a polarizing beam separation element (PBSE). The PBSE may generate a right hand circularly polarized (RCP) beam and a left hand circularly polarized (LCP) beam to be projected onto a target area, in which the RCP beam and the LCP beam may create an interference with respect to each other. The depth sensing apparatus also includes an imaging component to capture an image of the target area with the RCP beam and the LCP beam projected on the target area, in which the captured image is to be analyzed for depth sensing of the target area. The depth sensing apparatus further includes a polarizer that may increase an intensity of the interference pattern.

    Switchable mirror and display
    10.
    发明授权
    Switchable mirror and display 有权

    公开(公告)号：US11932170B2

    公开(公告)日：2024-03-19

    申请号：US17076319

    申请日：2020-10-21

    Applicant: GENTEX CORPORATION

    Inventor： Xiaoxu Niu ,  David J. Cammenga ,  William L. Tonar

    IPC: B60R1/12 ,  B60R1/02 ,  G02F1/01 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/137

    CPC classification number: B60R1/12 ,  B60R1/02 ,  G02F1/0136 ,  G02F1/133308 ,  G02F1/133536 ,  G02F1/134309 ,  G02F1/137 ,  B60R2001/1215

    Abstract: An improved device switchable between reflective and display states comprising an optical element and a display element. The optical element comprising a liquid crystal medium disposed between first and second substrates. The optical element may further comprise a first electrode, a second electrode, an absorptive polarizer, and a reflective polarizer. The first electrode and the absorptive polarizer may be disposed in a first direction relative the liquid crystal medium. Similarly, the second electrode and the reflective polarizer may be disposed in a second direction relative the liquid crystal medium. The second direction is opposite the first direction. In some embodiments, one or more of the absorptive and reflective polarizers may be further disposed between the first and second substrates. The display may be disposed in the first direction relative the optical element. Additionally, the device may further comprise a housing. In some embodiments, the housing may not have a bezel.

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