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    ELECTROWETTING, ACTIVE SELF-CLEANING SURFACE
    24.
    发明公开
    ELECTROWETTING, ACTIVE SELF-CLEANING SURFACE 审中-公开

    公开(公告)号：US20230384580A1

    公开(公告)日：2023-11-30

    申请号：US18324700

    申请日：2023-05-26

    Applicant: Gentex Corporation

    Inventor： Ryan Barrido Balili ,  Kurtis L. Geerlings ,  Xiaoxu Niu ,  Erik Christian Vyhmeister-Cancel ,  David Martin Bostrom

    IPC: G02B26/00 ,  G02B27/00 ,  B01L3/00

    CPC classification number: G02B26/005 ,  B01L2400/0427 ,  B01L3/502792 ,  G02B27/0006

    Abstract: An optical element is provided that has an outer surface, the optical element including: a coating on the outer surface for causing any fluid thereon to form into fluid droplets; a plurality of independently activated electrodes each having a plurality of interdigitated fingers positioned proximate the outer surface and extending across an area of the outer surface; and a drive circuit for selectively applying signals to the plurality of electrodes. The AC signals applied to electrodes having adjacent fingers each have a phase shift such that fluid droplets are continuously swept in a predetermined direction across the outer surface. The electrode fingers may be arranged with a uniform pitch, where the pitch is the distance between the centers of the electrodes, the pitch being less than or equal to 750 μm??. The electrode fingers may be arranged in a single plane with gaps therebetween.

    EDGE RESISTOR TO MITIGATE BUS BAR NONUNIFORMITY
    25.
    发明公开
    EDGE RESISTOR TO MITIGATE BUS BAR NONUNIFORMITY 审中-公开

    公开(公告)号：US20230288736A1

    公开(公告)日：2023-09-14

    申请号：US18181842

    申请日：2023-03-10

    Applicant: GENTEX CORPORATION

    Inventor： Adam R. Heintzelman ,  Xiaoxu Niu ,  Kurtis L. Geerlings

    IPC: G02F1/01

    CPC classification number: G02F1/0121 ,  G02F1/0107 ,  G02F2201/50

    Abstract: An electro-optic device includes a first substrate having an electrically conductive coating disposed on a rear surface; a second substrate having a front surface opposed to the rear surface of the first substrate; a sealing member extending along a perimeter of the rear surface of first substrate and front surface of second substrate; a chamber defined by the first substrate, the second substrate, and sealing member; and an edge resistor disposed on along at least a portion of a perimeter area of at least one of rear surface of first substrate and front surface of second substrate. The edge resistor extends along a first portion of an electrically conductive coatings that covers a first portion of a length of the region, and a second portion of the length of the region is free from electrically conductive coating.

    Electrodes for electro-optic devices and methods of making the electrodes
    26.
    发明授权
    Electrodes for electro-optic devices and methods of making the electrodes 有权

    公开(公告)号：US11372304B2

    公开(公告)日：2022-06-28

    申请号：US16724699

    申请日：2019-12-23

    Applicant: GENTEX CORPORATION

    Inventor： Jian Gao ,  George A. Neuman ,  Kurtis L. Geerlings

    IPC: G02F1/15 ,  G02F1/03 ,  G02F1/153 ,  G09G3/19 ,  G09G3/38 ,  G02F1/155 ,  G02F1/1343 ,  G02F1/1335

    Abstract: An electro-optic device is provided that includes a first substrate having an inner surface and an outer surface; a first electrode provided at the inner surface of the first substrate; a second substrate having an inner surface and an outer surface, wherein the inner surface of the second substrate faces the inner surface of the first substrate; a second electrode provided at the inner surface of the second substrate; and an electro-optic medium provided between the inner surfaces of the first and second substrates. The first electrode includes a metal mesh formed from metal tracings and having open areas between the metal tracings; and a first transparent conductive coating electrically coupled to the metal mesh and extending at least between the metal tracings so as to extend across the open areas.

    Potential drop compensated electro-optic device
    27.
    发明授权
    Potential drop compensated electro-optic device 有权

    公开(公告)号：US11360367B2

    公开(公告)日：2022-06-14

    申请号：US17012095

    申请日：2020-09-04

    Applicant: GENTEX CORPORATION

    Inventor： Xiaoxu Niu ,  Adam R. Heintzelman ,  Kurtis L. Geerlings

    IPC: G02F1/153 ,  G02F1/03 ,  G09G3/19 ,  G09G3/38 ,  G02F1/163 ,  B60J3/04 ,  B60R1/02

    Abstract: An electro-optic system where an electrical potential is changed and/or regulated to achieve a desired potential applied to an electro-optic medium. The electro-optic system comprises an electro-optic medium disposed in a chamber defined in part by two electrodes. A power source is connected to the two electrodes and thereby operable to apply an electrical potential to the electrochromic medium across the two electrodes. A voltmeter is operable to measure an electrical potential between two points within the chamber. Additionally, a controller is connected to the voltmeter and the power source and is operable to regulate the electrical potential applied by the power source based, at least in part, on the electrical potential measured between the two points within the chamber by the voltmeter.

    Nanofiber smoke detection calibration
    29.
    发明授权
    Nanofiber smoke detection calibration 有权

    公开(公告)号：US10962493B2

    公开(公告)日：2021-03-30

    申请号：US16387593

    申请日：2019-04-18

    Applicant: GENTEX CORPORATION

    Inventor： David J. Cammenga ,  Kurtis L. Geerlings ,  Joel C. Nemes ,  William L. Tonar ,  David E. Christian ,  Darin D. Tuttle ,  Xiaoxu Niu

    IPC: G01N27/12 ,  G01N33/00

    Abstract: A detector is provided including a plurality of nanofiber chemical sensors, each having an electrical characteristic; and a processing and alarm circuit in electrical communication with the plurality of nanofiber chemical sensors; wherein the electrical characteristics of at least one of the plurality of nanofiber chemical sensors changes in the presence of a first airborne material; wherein the electrical characteristics of at least one of the plurality of nanofiber chemical sensors changes in the presence of a second airborne material; and wherein the changes in the electrical characteristics of at least one of the plurality of nanofiber chemical sensors in the presence of the first airborne material are different from the changes in the electrical characteristics of at least one of the plurality of nanofiber chemical sensors in the presence of the second airborne material.

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