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    Augmented reality device with adjustable electroactive beam splitter
    2.
    发明授权
    Augmented reality device with adjustable electroactive beam splitter 有权

    公开(公告)号：US11681193B2

    公开(公告)日：2023-06-20

    申请号：US17225733

    申请日：2021-04-08

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten ,  Anita Trajkovska-Broach ,  Harry Milton

    IPC: G02F1/1335 ,  G02F1/137 ,  G02F1/13 ,  G06T19/00

    CPC classification number: G02F1/13718 ,  G02F1/1306 ,  G02F1/13355 ,  G06T19/006

    Abstract: Bright ambient light can wash out a virtual image in a conventional augmented reality device. Fortunately, this problem can be prevented with a variable electro-active beam splitter whose reflect/transmit ratio can be varied or switched on and off rapidly at a duty cycle based on the ambient level. As the ambient light gets brighter, the beam splitter's transmit/reflect ratio can be shifted so that the beam splitter reflects more light from the display and transmits less ambient light to the user's eye. The beam splitter can also be switched between a highly reflective state and a highly transmissive state at a duty cycle selected so that the eye spends more time integrating reflected display light than integrating transmitted ambient light. The splitting ratio and/or duty cycle can be adjusted as the ambient light level changes to provide the optimum experience for the user.

    THREE-DIMENSIONAL (3D) PRINTING OF ELECTRO-ACTIVE LENSES
    3.
    发明申请
    THREE-DIMENSIONAL (3D) PRINTING OF ELECTRO-ACTIVE LENSES 有权

    公开(公告)号：US20220324188A1

    公开(公告)日：2022-10-13

    申请号：US17845024

    申请日：2022-06-21

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten ,  Joel D. Zychick

    IPC: B29D11/00 ,  B33Y10/00 ,  B33Y80/00 ,  B29C64/112 ,  B33Y40/20 ,  G02C7/08 ,  G02C7/10

    Abstract: A method of manufacturing an optic includes disposing electronic circuitry on a substrate. The method also includes depositing a first resin on the first side of the electronic circuitry and curing the first resin to form a first optical segment. The method further includes depositing a second resin on the second side of the electronic circuitry and curing the second resin to form a second optical segment. The first and second optical segments encapsulate the electronic circuitry. The first resin and the second resin can include multiple droplets of resin, thereby reducing mechanical force imposed on the electronic circuitry during printing and allowing conformal contact between the resin and the electronic circuitry. Accordingly, electronic circuitry of smaller dimension can be used to form the electronic eyewear.

    PRISM-ENHANCED LENSES AND METHODS OF USING PRISM-ENHANCED LENSES
    5.
    发明申请
    PRISM-ENHANCED LENSES AND METHODS OF USING PRISM-ENHANCED LENSES 有权

    公开(公告)号：US20210003865A1

    公开(公告)日：2021-01-07

    申请号：US17025090

    申请日：2020-09-18

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten ,  Harry Milton

    IPC: G02C7/08 ,  G02F1/29 ,  G02B3/08 ,  G02C7/04

    Abstract: An electro-active lens is presented which utilizes a surface relief structures and an electro-active material, with a change in refractive index facilitating the change in optical properties. A molded structure and a liquid crystal are used to form a diffractive lens. In addition to the classical approach of utilizing diffractive optics and multiple Fresnel zones to form a lens, an additional structure is placed between Fresnel zones in order to improve the diffraction efficiency across the visible spectrum and reduce chromatic aberration.

    Dynamic focusing head mounted display
    8.
    发明授权
    Dynamic focusing head mounted display 有权

    公开(公告)号：US12222511B2

    公开(公告)日：2025-02-11

    申请号：US18313450

    申请日：2023-05-08

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten

    IPC: G02B27/01 ,  G02B3/14 ,  G02B5/10 ,  G02B7/04 ,  G02B26/00 ,  G02B27/16 ,  G02B27/40

    Abstract: A conventional head-mounted display (HMDs) can display a virtual image at a fixed focus (e.g., infinite focus). If the user looks at an object that appears closer than the virtual image, then accommodation by the user's eyes will cause the virtual image to appear blurry. The HMDs disclosed herein include a dynamic electro-active focusing element that changes the focus of the virtual image to account for accommodation by the user. This dynamic electro-active focusing element may include a curved layer of electro-active material, such as nematic or bi-stable (e.g., cholesteric) liquid crystal, disposed between a static concave mirror and a convex surface on a beam splitter or other optical element. Changing the refractive index of the electro-active material causes the focus of the dynamic electro-active focusing element, making it possible to shift the virtual image's focus in as the user's eyes change focus.

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