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    Method and Device for Operating a Display System With One or More Data Glasses in a Vehicle
    2.
    发明公开
    Method and Device for Operating a Display System With One or More Data Glasses in a Vehicle 审中-公开

    公开(公告)号：US20240329404A1

    公开(公告)日：2024-10-03

    申请号：US18619302

    申请日：2024-03-28

    申请人： Bayerische Motoren Werke Aktiengesellschaft

    发明人： Tobias BAUERNFEIND ,  Wolfgang HABERL ,  Alan KEIM ,  Manfred PAULI

    IPC分类号： G02B27/01 ,  G02B27/00

    CPC分类号： G02B27/0172 ,  G02B27/0093 ,  G02B2027/0138 ,  G02B2027/0178 ,  G02B2027/0183 ,  G02B2207/101

    摘要： A method assigns an absolute glasses pose indication acquired outside the glasses to one of multiple data glasses in a vehicle. The method includes: providing a respective set of a temporal profile of glasses pose indications, acquired outside the glasses, with respect to a vehicle coordinate system, for multiple data glasses, to at least one of the data glasses; in the at least one data glasses, ascertaining glasses movement information, wherein the glasses movement information indicates a temporal profile of incremental changes in the glasses pose of the at least one data glasses with respect to the vehicle coordinate system; performing a plausibility check between each of the sets of the profiles of the glasses pose indications acquired outside the glasses and the glasses movement information in order to obtain a respective error metric, wherein the error metric indicates the extent to which the set in question of the temporal profile of the glasses pose indications acquired outside the glasses matches the temporal profile of the glasses movement information; selecting one of the sets of the profiles of the glasses pose indications acquired outside the glasses in the at least one data glasses depending on the error metric; and signaling an indication in relation to the selected set of the profile of the glasses pose indications acquired outside the glasses.

    Slab waveguide layer for enhanced near-eye-display surface relief grating lightguide
    7.
    发明授权
    Slab waveguide layer for enhanced near-eye-display surface relief grating lightguide 有权

    公开(公告)号：US12050344B2

    公开(公告)日：2024-07-30

    申请号：US18496574

    申请日：2023-10-27

    申请人： Applied Materials, Inc.

    发明人： Kevin Messer ,  David Alexander Sell ,  Samarth Bhargava

    IPC分类号： G02B6/122 ,  G02B6/12

    CPC分类号： G02B6/1223 ,  G02B6/12007 ,  G02B2006/12107 ,  G02B2207/101

    摘要： Embodiments of the present disclosure generally relate to augmented reality waveguide combiners. The waveguides includes a waveguide substrate, having a substrate refractive index (RI) nsub, a slab waveguide layer disposed over the waveguide substrate, the slab waveguide layer having a slab RI nswg and a slab depth dswg, the slab depth dswg from a lower surface to an upper surface of the slab waveguide layer, at least one grating defined by a plurality of grating structures, the grating structures are disposed in, on, or over the slab waveguide layer, and a superstrate between and over the grating structures, the superstrate having a superstrate RI nsuperstrate and an interface with the slab waveguide layer. The slab RI nswg is greater than the substrate RI nsub and the slab RI nswg is greater than the superstrate RI nsuperstrate.

    Inhomogeneous microlens device for near-field focusing, beam forming, and high-efficiency far-field device implementation
    8.
    发明授权
    Inhomogeneous microlens device for near-field focusing, beam forming, and high-efficiency far-field device implementation 有权

    公开(公告)号：US12044860B2

    公开(公告)日：2024-07-23

    申请号：US17282349

    申请日：2019-10-01

    申请人： InterDigital CE Patent Holdings

    发明人： Oksana Shramkova ,  Mitra Damghanian ,  Valter Drazic

    IPC分类号： G02B27/56 ,  G02B3/00 ,  G02B5/18 ,  G02B27/09

    CPC分类号： G02B27/56 ,  G02B3/0043 ,  G02B5/1814 ,  G02B27/0955 ,  G02B2207/101

    摘要： The disclosure relates to an optically-transparent device (100) comprising a main part (10) of dielectric material having a refractive index n2. Such an optically-transparent device is configured for forming a field intensity distribution in a near zone of said device, from electromagnetic waves incidentally illuminating said device, when said device is embedded in a dielectric material having a refractive index n1 lower than said refractive index n2. Said device (100) further comprises at least one insert (11) of dielectric material having a refractive index n3 lower than said refractive index n2 and different from said refractive index n1, said at least one insert being inserted into said main part, and each one of said at least one insert and said main part having respectively an edge of a step formed by a base surface of said at least one insert or said main part and a lateral surface of said at least one insert or said main part, said base surface being defined with respect to an arrival direction of said electromagnetic wave. The disclosure also relates to a system comprising a plurality of above-described optically-transparent devices uniformly distributed within a dielectric host medium, so as to form a far-field device for far-field applications.