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    Methods for Compensating for Optical Surface Nonuniformity
    3.
    发明公开
    Methods for Compensating for Optical Surface Nonuniformity 审中-公开

    公开(公告)号：US20240217142A1

    公开(公告)日：2024-07-04

    申请号：US18457227

    申请日：2023-08-28

    Applicant: DigiLens Inc.

    Inventor： Jonathan David Waldern ,  Shibu Abraham ,  Milan Momcilo Popovich

    IPC: B29C35/08 ,  G02F1/13 ,  G02F1/1334 ,  G02B6/12

    CPC classification number: B29C35/0805 ,  G02F1/1326 ,  G02F1/1334 ,  B29C2035/0827 ,  G02B2006/12166

    Abstract: Systems and methods for compensating for nonuniform surface topography features in accordance with various embodiments of the invention are illustrated. One embodiment includes a method for manufacturing waveguide cells, the method including providing a waveguide including first and second substrates and a layer of optical recording material, and applying a surface forming process to at least one external surface of the first and second substrates. In another embodiment, applying the surface forming process includes applying a forming material coating to the at least one external surface, providing a forming element having a forming surface, bringing the forming element in physical contact with the forming material coating, curing the forming material coating while it is in contact with the forming element, and releasing the forming material coating from the forming element.

    Methods for Fabricating Optical Waveguides
    6.
    发明公开
    Methods for Fabricating Optical Waveguides 审中-公开

    公开(公告)号：US20230359146A1

    公开(公告)日：2023-11-09

    申请号：US18311844

    申请日：2023-05-03

    Applicant: DigiLens Inc.

    Inventor： Jonathan David Waldern ,  Milan Momcilo Popovich ,  Alastair John Grant

    IPC: G03H1/20 ,  G03H1/04 ,  G03H1/02 ,  G02B6/00 ,  G02B27/01 ,  G02B27/00

    CPC classification number: G03H1/20 ,  G03H1/0408 ,  G03H1/0248 ,  G02B6/00 ,  G02B27/0172 ,  G02B27/0081 ,  G02B27/0093 ,  G03H2223/16 ,  G03H2260/00

    Abstract: Mastering systems and methods of fabricating waveguides and waveguide devices using such mastering systems are described. Mastering systems for fabricating holographic waveguides can include using a master to control the application of energy (e.g. a laser, light, or magnetic beam) onto a liquid crystal substrate to fabricate a holographic waveguide into the liquid crystal substrate. Mastering systems for fabricating holographic waveguides in accordance with embodiments of the invention can include a variety of features. These features include, but are not limited to: chirp for single input beam copy (near i.e. hybrid contact copy), dual chirped gratings (for input and output), zero order grating for transmittance control, alignment reference gratings, 3:1 construction, position adjustment tooling to enable rapid alignment, optimization of lens and window thickness for multiple RKVs simultaneously, and avoidance of other orders and crossover of the diffraction beam.

    Systems and Methods for Fabricating a Multilayer Optical Structure
    8.
    发明申请
    Systems and Methods for Fabricating a Multilayer Optical Structure 有权

    公开(公告)号：US20230030594A1

    公开(公告)日：2023-02-02

    申请号：US17816240

    申请日：2022-07-29

    Applicant: DigiLens Inc.

    Inventor： Jonathan David Waldern ,  Alastair John Grant ,  Milan Momcilo Popovich

    IPC: G03H1/02 ,  B05D1/02 ,  B05D1/00 ,  G03F7/00 ,  B05D5/06 ,  G02B5/18 ,  F21V8/00

    Abstract: Systems and methods for fabricating optical elements in accordance with various embodiments of the invention are illustrated. One embodiment includes a method for fabricating an optical element, the method including providing a first optical substrate, depositing a first layer of a first optical recording material onto the first optical substrate, applying an optical exposure process to the first layer to form a first optical structure, temporarily erasing the first optical structure, depositing a second layer of a second optical recording material, and applying an optical exposure process to the second layer to form a second optical structure, wherein the optical exposure process includes using at least one light beam traversing the first layer.

    Methods and apparatuses for providing a holographic waveguide display using integrated gratings
    10.
    发明授权
    Methods and apparatuses for providing a holographic waveguide display using integrated gratings 有权

    公开(公告)号：US11543594B2

    公开(公告)日：2023-01-03

    申请号：US17328727

    申请日：2021-05-24

    Applicant: DigiLens Inc.

    Inventor： Alastair John Grant ,  Jonathan David Waldern ,  Milan Momcilo Popovich ,  Sihui He ,  Edward Lao ,  Roger Allen Conley Smith

    IPC: G02B27/01 ,  G02B6/34 ,  F21V8/00

    Abstract: Systems and methods for providing holographic waveguide display using integrated gratings in accordance with various embodiments of the invention are illustrated. One embodiment includes a waveguide display including a source of light, and a first waveguide including a grating structure including first and second gratings, and an input coupler configured to couple a first field-of-view portion of light, and couple a second field-of-view portion of light, wherein the first grating is configured to provide beam expansion in a first direction for the first field-of-view portion of light, and provide beam expansion in the first direction and beam extraction towards a viewer for the second field-of-view portion of light, the second grating is configured to provide beam expansion in a second direction for the second field-of-view portion of light, and provide beam expansion in the second direction and beam extraction towards a viewer for the first field-of-view portion of light.

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