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公开(公告)号：US20200271917A1
公开(公告)日：2020-08-27
申请号：US16762411
申请日：2018-11-14
Applicant: CORNING INCORPORATED
Inventor： Jann Paul Kaminski , Raymond Miller Karam , Ian Armour McKay , Dragan Pikula , Thomas M Wynne
Abstract: A liquid lens system includes first and second liquids disposed within a cavity. An interface between the first and second liquids defines a variable lens. A common electrode is in electrical communication with the first liquid. A driving electrode is disposed on a sidewall of the cavity and insulated from the first and second liquids. A controller supplies a common voltage to the common electrode and a driving voltage to the driving electrode. A voltage differential between the common voltage and the driving voltage is based at least in part on at least one of: (a) a first reference capacitance of a first reference electrode pair disposed within the first portion of the cavity and insulated from the first liquid or (b) a second reference capacitance of a second reference electrode pair disposed within the second portion of the cavity and insulated from the first liquid and the second liquid.
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Patent Agency Ranking
公开(公告)号：US11927773B2
公开(公告)日：2024-03-12
申请号：US16981856
申请日：2019-03-19
Applicant: CORNING INCORPORATED
Inventor： Ian Armour McKay , Dragan Pikula , Dean Michael Thelen
CPC classification number: G02B3/14 , G02B26/005 , H05B3/0004
Abstract: A liquid lens comprising: a lens body including a cavity, a control electrode, and a common electrode; a first liquid disposed within the cavity and in electrical communication with the common electrode; a second liquid disposed within the cavity; an insulating layer in contact with the first liquid and the second liquid and separating the first liquid and the second liquid from the control electrode; and a driver driving a voltage differential across the common electrode and the control electrode, with the first liquid resisting current flow between the common electrode and the control electrode and thereby raising a temperature of the first liquid from a current temperature to a predetermined temperature, which is higher than the current temperature. The driver raises the temperature of the first liquid from the current temperature to the predetermined temperature by increasing a frequency of a voltage waveform of the voltage differential.
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公开(公告)号：US11567242B2
公开(公告)日：2023-01-31
申请号：US16763439
申请日：2018-11-15
Applicant: CORNING INCORPORATED , LG INNOTEK CO., LTD.
Inventor： Jann Paul Kaminski , Raymond Miller Karam , Robert Bruce Lyon , Ian Armour McKay , Dragan Pikula , Daniel Ohen Ricketts
IPC: G02B3/14
Abstract: A liquid lens can be coupled to ground, such as to impede charge from building up in the liquid lens during operation thereof. For example, an electrode that is in electrical communication with a conductive fluid of the liquid lens can be coupled to ground. A switch can be used to selectively couple the liquid lens to ground, such as for discharging the liquid lens. An electrode can be selectively coupled to ground and to driving signals using a switch. In some cases, drive signals can be provided to electrodes other than the grounded electrode for driving the liquid lens. In some cases, the liquid lens can be driven using feedback control based on one or more measured parameters indicative capacitance between a fluid and one or more electrodes in the liquid lens.
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公开(公告)号：US20210124094A1
公开(公告)日：2021-04-29
申请号：US16981856
申请日：2019-03-19
Applicant: CORNING INCORPORATED
Inventor： Ian Armour McKay , Dragan Pikula , Dean Michael Thelen
Abstract: A liquid lens comprising: a lens body including a cavity, a control electrode, and a common electrode; a first liquid disposed within the cavity and in electrical communication with the common electrode; a second liquid disposed within the cavity; an insulating layer in contact with the first liquid and the second liquid and separating the first liquid and the second liquid from the control electrode; and a driver driving a voltage differential across the common electrode and the control electrode, with the first liquid resisting current flow between the common electrode and the control electrode and thereby raising a temperature of the first liquid from a current temperature to a predetermined temperature, which is higher than the current temperature. The driver raises the temperature of the first liquid from the current temperature to the predetermined temperature by increasing a frequency of a voltage waveform of the voltage differential.
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公开(公告)号：US11662568B2
公开(公告)日：2023-05-30
申请号：US16762411
申请日：2018-11-14
Applicant: CORNING INCORPORATED
Inventor： Jann Paul Kaminski , Raymond Miller Karam , Ian Armour McKay , Dragan Pikula , Thomas M Wynne
CPC classification number: G02B26/005 , G02B3/14 , G02B7/028
Abstract: A liquid lens system includes first and second liquids disposed within a cavity. An interface between the first and second liquids defines a variable lens. A common electrode is in electrical communication with the first liquid. A driving electrode is disposed on a sidewall of the cavity and insulated from the first and second liquids. A controller supplies a common voltage to the common electrode and a driving voltage to the driving electrode. A voltage differential between the common voltage and the driving voltage is based at least in part on at least one of: (a) a first reference capacitance of a first reference electrode pair disposed within the first portion of the cavity and insulated from the first liquid or (b) a second reference capacitance of a second reference electrode pair disposed within the second portion of the cavity and insulated from the first liquid and the second liquid.
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公开(公告)号：US20200319380A1
公开(公告)日：2020-10-08
申请号：US16763439
申请日：2018-11-15
Applicant: CORNING INCORPORATED
Inventor： Jann Paul Kaminski , Raymond Miller Karam , Robert Bruce Lyon , Ian Armour McKay , Dragan Pikula , Daniel Ohen Ricketts
IPC: G02B3/14
Abstract: A liquid lens can be coupled to ground, such as to impede charge from building up in the liquid lens during operation thereof. For example, an electrode that is in electrical communication with a conductive fluid of the liquid lens can be coupled to ground. A switch can be used to selectively couple the liquid lens to ground, such as for discharging the liquid lens. An electrode can be selectively coupled to ground and to driving signals using a switch. In some cases, drive signals can be provided to electrodes other than the grounded electrode for driving the liquid lens. In some cases, the liquid lens can be driven using feedback control based on one or more measured parameters indicative capacitance between a fluid and one or more electrodes in the liquid lens.
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