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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
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.
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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
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.
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公开(公告)号：US11635661B2
公开(公告)日：2023-04-25
申请号：US17547404
申请日：2021-12-10
Applicant: e-Vision Smart Optics, Inc.
Inventor： Harry Milton
IPC: G02F1/1343 , G02F1/29 , G02F1/1333 , G02F1/1345
Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, composition of matter, and/or user interface comprising and/or related to a tunable electro-optic lens device comprising a first substrate comprising a first electrode layer that comprises a first plurality of ring electrodes that form a first resistive divider network, and a second substrate comprising a second electrode layer.
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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
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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公开(公告)号：US20230028581A1
公开(公告)日：2023-01-26
申请号：US17938070
申请日：2022-10-05
Applicant: e-Vision Smart Optics, Inc.
Inventor： Ronald D. Blum , Joshua N. Haddock , William Kokonaski , John M. Hunkeler
Abstract: A lens including a flexible refractive optic having a fixed refractive index, an electro active element embedded within the flexible refractive optic, wherein the electro-active element has an alterable refractive index, and a controller electrically, connected to the electro-active element wherein when power is applied thereto the refractive index of the electro-active element is altered.
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Patent Agency Ranking
公开(公告)号：US20220308392A1
公开(公告)日：2022-09-29
申请号：US17832922
申请日：2022-06-06
Applicant: e-Vision Smart Optics, Inc.
Inventor： Anthony Van Heugten
IPC: G02F1/1335 , G02F1/1343
Abstract: A typical liquid crystal lens includes liquid crystal sandwiched between transparent substrates, which are patterned with ring electrodes. Applying a voltage across the electrodes causes the liquid crystal molecules to rotate, changing their apparent refractive index and the lens's focal length. The ring electrodes are separated by gaps and get narrower toward the lens's periphery. If the ring electrodes are too narrower, their cannot switch the liquid crystal well. To address this problem, an inventive liquid crystal lens includes a substrate with a stepped surface that defines concentric liquid crystal regions with thicknesses that increase with lens radius. Each region is switched by a different set of ring electrodes, which may be on, under, or opposite the stepped surface. Within each region, the ring electrodes get narrower farther from the lens's center. But the ring electrodes' widths also increase with liquid crystal thickness, offsetting the decrease in width that degrades lens performance.
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公开(公告)号：US20220214595A1
公开(公告)日：2022-07-07
申请号：US17406030
申请日：2021-08-18
Applicant: e-Vision Smart Optics, Inc.
Inventor： Anthony Van Heugten
Abstract: A beam steering device includes a substrate with a first refractive index that defines a cavity, an electroactive material in the cavity that has a variable refractive index, and two sets of opposing overlays. The overlays in one set of opposing overlays are parallel to each other, while the overlays in the other set are tilted with respect to each other. This allows one or more electric fields between the overlays to be used to align the electroactive material in two different directions to change its refractive index, allowing for a faster speed of beam steering through refraction than conventional approaches.
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公开(公告)号：US11370185B2
公开(公告)日：2022-06-28
申请号：US16348221
申请日：2019-01-10
Applicant: E-VISION SMART OPTICS, INC.
Inventor： Anthony Van Heugten , Joel D. Zychick
IPC: B29D11/00 , B29C64/112 , B33Y10/00 , B33Y80/00 , B33Y40/20 , G02C7/08 , G02C7/10 , B29K105/00 , B29L11/00
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.
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公开(公告)号：US20220137419A1
公开(公告)日：2022-05-05
申请号：US17577965
申请日：2022-01-18
Applicant: e-Vision Smart Optics, Inc.
Inventor： Anthony Van Heugten
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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公开(公告)号：US11262796B2
公开(公告)日：2022-03-01
申请号：US16208021
申请日：2018-12-03
Applicant: e-Vision Smart Optics, Inc.
Inventor： Ronald D. Blum , William Kokonaski , Dwight P. Duston
IPC: G06F1/16 , G02C7/16 , G02C11/00 , G02C7/08 , A61F2/16 , G02C7/06 , A61F9/06 , H02J50/10 , G02C7/10 , H04N5/225 , H04N5/232
Abstract: Eyewear is provided including a frame, and a camera connected with the frame, in which the camera is configured to be controlled by a remote controller. The camera may be configured to capture video and/or a photo. The eyewear may include data storage, and the camera may be connected to the data storage. A wristwatch may be configured to act both as a time piece and a controller of the camera. The eyewear may also include a heads-up display and/or a video file player. The eyewear may also include an electro-active lens.
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