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    ELECTRO-ACTIVE LENSES WITH RAISED RESISTIVE BRIDGES
    53.
    发明申请
    ELECTRO-ACTIVE LENSES WITH RAISED RESISTIVE BRIDGES 审中-公开

    公开(公告)号：US20170293197A1

    公开(公告)日：2017-10-12

    申请号：US15431686

    申请日：2017-02-13

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten ,  Harry Milton

    IPC: G02F1/29 ,  A61F2/16

    CPC classification number: G02F1/29 ,  A61F2/16 ,  A61F2/1627 ,  G02F1/13306 ,  G02F2001/294 ,  G02F2201/122

    Abstract: 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.

    ELECTRO-ACTIVE LENSES WITH MULTIPLE ELECTRODE LAYERS
    55.
    发明申请
    ELECTRO-ACTIVE LENSES WITH MULTIPLE ELECTRODE LAYERS 有权

    公开(公告)号：US20250060648A1

    公开(公告)日：2025-02-20

    申请号：US18938853

    申请日：2024-11-06

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten

    IPC: G02F1/29

    Abstract: Concentric ring electrodes in a conventional electro-active lens are arranged in the same layer and spaced apart from each other to prevent electrical shorts. The spacing between electrodes depends on the substrate material and how the electrodes are made. Ideally, the electrodes should be as close together as possible to prevent eddies or discontinuities in the electric field that the electrodes apply to the electro-active material in the electro-active lens. These eddies or discontinuities degrade the electro-active lens's optical quality. Unfortunately, current photolithographic patterning processes cannot produce gaps smaller than about 5 microns on plastic substrates. To compensate for this constraint, the electrodes can be arranged on the substrate in two or more staggered layers, with the electrodes in one layer appearing to fill the gaps in the other layer(s) when looking through the electro-active lens. This eliminates apparent gaps between electrodes even with plastic substrates and coarse patterning resolution.

    Electro-active sporting glasses
    56.
    发明授权
    Electro-active sporting glasses 有权

    公开(公告)号：US12078874B2

    公开(公告)日：2024-09-03

    申请号：US18053225

    申请日：2022-11-07

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten

    IPC: G02C7/08 ,  F41G1/14 ,  G02F1/139 ,  G02F1/1337

    CPC classification number: G02C7/083 ,  F41G1/14 ,  G02F1/139 ,  G02F1/133757

    Abstract: An electro-active lens provides simultaneous focusing at two different optical powers. It does this with a stack of electro-active lens elements aligned along the same optical axis that each focus light in different polarization states (e.g., horizontal and vertical polarization states). If a first and second electro-active lens elements have different optical powers, light in a first polarization state can be focused to one optical power and light in a second polarization state can be focused to a different optical power simultaneously. The electro-active lens can be switched between different single and multiple optical powers. People with presbyopia may use the electro-active lens mounted in eyewear in place of conventional bifocal glasses. The electro-active lens may also be used in a scope to improve target aiming.

    ELECTRO-ACTIVE LENSES WITH RAISED RESISTIVE BRIDGES
    58.
    发明公开
    ELECTRO-ACTIVE LENSES WITH RAISED RESISTIVE BRIDGES 审中-公开

    公开(公告)号：US20230273498A1

    公开(公告)日：2023-08-31

    申请号：US18313435

    申请日：2023-05-08

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten ,  Harry Milton

    IPC: G02F1/29 ,  A61F2/16

    CPC classification number: G02F1/29 ,  A61F2/16 ,  G02F1/13306 ,  G02F1/294

    Abstract: 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.

    Dynamic focusing head mounted display
    59.
    发明授权
    Dynamic focusing head mounted display 有权

    公开(公告)号：US11668941B2

    公开(公告)日：2023-06-06

    申请号：US17577965

    申请日：2022-01-18

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten

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

    CPC classification number: G02B27/0172 ,  G02B7/04 ,  G02B27/16 ,  G02B27/40 ,  G02B3/14 ,  G02B5/10 ,  G02B26/004 ,  G02B26/005 ,  G02B2027/0181 ,  G02B2027/0185

    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.

    Electro-Active Sporting Glasses
    60.
    发明申请
    Electro-Active Sporting Glasses 有权

    公开(公告)号：US20230086352A1

    公开(公告)日：2023-03-23

    申请号：US18053225

    申请日：2022-11-07

    Applicant: e-Vision Smart Optics, Inc.

    Inventor： Anthony Van Heugten

    IPC: G02C7/08 ,  F41G1/14 ,  G02F1/139

    Abstract: An electro-active lens provides simultaneous focusing at two different optical powers. It does this with a stack of electro-active lens elements aligned along the same optical axis that each focus light in different polarization states (e.g., horizontal and vertical polarization states). If a first and second electro-active lens elements have different optical powers, light in a first polarization state can be focused to one optical power and light in a second polarization state can be focused to a different optical power simultaneously. The electro-active lens can be switched between different single and multiple optical powers. People with presbyopia may use the electro-active lens mounted in eyewear in place of conventional bifocal glasses. The electro-active lens may also be used in a scope to improve target aiming.

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