ELECTROWETTING OPTICAL DEVICES AND METHODS FOR MAKING THE SAME

    公开(公告)号:US20220252861A1

    公开(公告)日:2022-08-11

    申请号:US17621732

    申请日:2020-06-24

    Abstract: Electrowetting optical devices can comprise a first electrode at least partially circumscribing a first optical window and a second electrode at least partially circumscribing a second optical window. The second optical window may be aligned with the first optical window in a direction of the optical axis. A central region may be defined by a projection of a footprint of the second optical window. An interface between a first liquid and a second liquid that may be disposed within a containment region may form a lens. In some embodiments, a thickness of a second dielectric portion at least partially circumscribing the central region may be greater than a thickness of a thirst dielectric portion within the central region. In some embodiments, a capacitance per area of the device upon application of a maximum operating voltage may be in a range from about 0.1 pF/mm2 to about 3.5 pF/mm2.

    Naphtyl based high index hydrophobic liquids and transmission recovery agents for liquid lens formulations

    公开(公告)号:US11204492B2

    公开(公告)日:2021-12-21

    申请号:US16734704

    申请日:2020-01-06

    Abstract: An electrowetting optical device is provided. The electrowetting optical device includes a conductive liquid and a non-conductive liquid. The non-conductive fluid includes a naphthalene based compound having Formula (I), Formula (II), and/or Formula (III): where R1, R2, and R3 are individually alkyl, aryl, alkoxy, or aryloxy groups; X includes carbon, silicon, germanium, tin, lead, and combinations thereof; and Z includes oxygen, sulfur, selenium, tellurium, polonium, and combinations thereof. The conductive liquid may additionally include a transmission recovery agent having Formula (IV) and/or Formula (V): where R4 is an alkyl, fluoroalkyl, aryl, alkoxy, or aryloxy group. The electrowetting optical device additionally includes a dielectric surface in contact with both the conductive and non-conductive liquids where the conductive and non-conductive liquids are non-miscible.

    POLYFLUOROAROMATIC DERIVATIVES FOR LIQUID LENSES

    公开(公告)号:US20240069245A1

    公开(公告)日:2024-02-29

    申请号:US18446100

    申请日:2023-08-08

    CPC classification number: G02B1/041 G02B3/14

    Abstract: A liquid lens including a first liquid comprising a polyfluoroaromatic compound represented by formula (I): Fx—(aromatic)—Y—R1. “x” is within a range of from 2 to 5. Y is one of CH2, Si(Alk)2, Ge(Alk)2, O, and S. “Alk” is a linear aliphatic chain. R1 is any organic group, but can be one of a linear aliphatic chain, a cycloaliphatic, a fluorocycloaliphatic, and an aromatic residue. “Aromatic” is any six carbon aromatic ring. Examples of the chemical compound represented by formula (I) include butylpentafluorobenzene; dimethylnonafluorohexylpentafluorophenylsilane; trimethylpentafluorophenylgennane; butoxypentafluorobenzene; cyclopentoxypentafluorobenzene; 1-n-octyloxypentafluorobenzene; cyclooctyloxypentafluorobenzene; 1-n-dodecyloxypentafluorobenzene; cyclopentylpentafluorophenylsulfide; phenoxypentafluorobenzene; 2,4-difluoroanisole; and heptafluoropentyloxypentafluorobenzene. The first liquid has a density in a range of from 0.95 g/mL to 1.35 g/mL (at 20° C.). The liquid lens further includes a second liquid that forms an interface with the first liquid. The second liquid can be substantially free of water.

    POLYMER DIELECTRIC COATINGS USED TO CONSTRUCT LIQUID LENS

    公开(公告)号:US20210231943A1

    公开(公告)日:2021-07-29

    申请号:US17056605

    申请日:2019-05-20

    Abstract: An electrowetting optical device is provided. The electrowetting optical device includes a first window, a second window, and a cavity disposed between the first window and the second window. The electrowetting optical device additionally includes a first liquid and a second liquid disposed within the cavity, the first liquid and the second liquid substantially immiscible with each other and having different refractive indices such that an interface between the first liquid and the second liquid defines a variable lens. The electrowetting optical device also includes a common electrode in electrical connection with the first liquid and a driving electrode disposed on a sidewall of the cavity and insulated from the first liquid and the second liquid by an insulating polymer dielectric layer. The insulating polymer dielectric layer may be formed using initiated chemical vapor deposition (iCVD).

    NAPHTYL BASED HIGH INDEX HYDROPHOBIC LIQUIDS AND TRANSMISSION RECOVERY AGENTS FOR LIQUID LENS FORMULATIONS

    公开(公告)号:US20190293920A1

    公开(公告)日:2019-09-26

    申请号:US16375124

    申请日:2019-04-04

    Abstract: An electrowetting optical device is provided. The electrowetting optical device includes a conductive liquid and a non-conductive liquid. The non-conductive fluid includes a naphthalene based compound having Formula (I), Formula (II), and/or Formula (III): where R1, R2, and R3 are individually alkyl, aryl, alkoxy, or aryloxy groups; X includes carbon, silicon, germanium, tin, lead, and combinations thereof; and Z includes oxygen, sulfur, selenium, tellurium, polonium, and combinations thereof. The conductive liquid may additionally include a transmission recovery agent having Formula (IV) and/or Formula (V): where R4 is an alkyl, fluoroalkyl, aryl, alkoxy, or aryloxy group. The electrowetting optical device additionally includes a dielectric surface in contact with both the conductive and non-conductive liquids where the conductive and non-conductive liquids are non-miscible.

    LOW MELTING POINT IONIC LIQUIDS FOR INFRA-RED LIQUID LENS DESIGN

    公开(公告)号:US20220099862A1

    公开(公告)日:2022-03-31

    申请号:US17426914

    申请日:2020-01-23

    Abstract: A liquid lens can include a lens body forming a cavity with a conducting liquid and an insulating liquid disposed therein, the conducting liquid substantially immiscible with the insulating liquid to define an interface between the conducting and insulating liquids. The conducting liquid can include an ionic compound of either a dicyanamide anion and a cation counterion, or a tricyanomethanide anion and a cation counterion, the dicyanamide anion having the formula the tricyanomethanide anion having the formula and the cation counterion is one of an imidazolium, a pyrrolidininium, a piperidinium, a phosphonium, a pyridinium, a pyrrolinium or a sulfonium cation. The ionic compound of the conducting liquid can be N-methyl-N-ethylpyrrolidinium dicyanamide, l-ethyl-3-methylimidazolium dicyanamide, 1-butyl-1-methylpyrrolidinium tricyanomethanide, or 1-ethyl-3-methylimidazolium tricyanomethanide, among others. The conducting liquid can have transmittance of at least 50% over a thickness of 1 mm for electromagnetic waves having wavelength of 1550 n.

Patent Agency Ranking