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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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公开(公告)号：US11960104B2
公开(公告)日：2024-04-16
申请号：US16500611
申请日：2018-04-05
Applicant: CORNING INCORPORATED
Inventor： Jann Paul Kaminski , Raymond Miller Karam , Robert Bruce Lyon , Dragon Pikula , Daniel Ohen Ricketts
CPC classification number: G02B3/14 , G02B3/0006 , G02B26/004 , G02B27/646
Abstract: Control systems for liquid lenses can use feedback control using one or more measured parameters indicative of a position of the fluid interface in the liquid lens. Capacitance between a fluid and an electrode in the liquid lens can vary depending on the position of the fluid interface. Current mirrors can be used for making measurements indicative of the capacitance and/or the fluid interface position. The liquid lens can be calibrated using the measurements indicative of capacitance and/or fluid interface position as the voltage is driven across an operational range. A control system can use pulse width modulation (PWM) for driving a liquid lens, and a carrier frequency for the PWM signals can be varied to control power consumption in the liquid lens. The slew rate can be adjustable to control power consumption in the liquid lens.
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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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34.发明申请公开(公告)号：US20230124770A1
公开(公告)日：2023-04-20
申请号：US18086220
申请日：2022-12-21
Applicant: CORNING INCORPORATED
Inventor： Pascal R. Ackermann-Karam , Mark Finkle , Daniella M. Harvey , Raymond Miller Karam , Georges Roussos
IPC: B29C65/16 , B23K37/04 , B29C65/00 , B23K26/082 , B23K26/0622 , B23K26/32 , B23K26/211 , B23K26/244 , B23K26/03 , B23K26/046 , B23K26/08 , B29C65/78 , B01L3/00 , C03B23/203 , C03C27/00 , B32B37/06 , B23K26/324
Abstract: A process for room temperature substrate bonding employs a first substrate substantially transparent to a laser wavelength is selected. A second substrate for mating at an interface with the first substrate is then selected. A transmissivity change at the interface is created and the first and second substrates are mated at the interface. The first substrate is then irradiated with a laser of the transparency wavelength substantially focused at the interface and a localized high temperature at the interface from energy supplied by the laser is created. The first and second substrates immediately adjacent the interface are softened with diffusion across the interface to fuse the substrates.
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公开(公告)号：US20230124449A1
公开(公告)日：2023-04-20
申请号：US17912215
申请日：2021-03-15
Applicant: CORNING INCORPORATED
Abstract: A liquid lens can include a cavity between first and second windows, first and second liquids in the cavity, and a variable interface between the liquids, thereby forming a variable lens. The liquid lens can be operable to adjust a shape of the variable interface at an operating temperature less than a melting point of the first liquid. A liquid composition of the first liquid can include at least 65 wt. % water, at most 31 wt. % of a freezing point reducing agent, at most 20 wt. % of an alkali metal salt, a melting point of greater than or equal to −10° C., a viscosity of at most 1.3 cSt, measured at a temperature of 20° C., a refractive index, measured at a wavelength of 589.3 nm, of at most 1.4, and/or an Abbe number of at least 45. A volume of the cavity can be at most 10 μL.
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Patent Agency Ranking
公开(公告)号：US20220057546A1
公开(公告)日：2022-02-24
申请号：US17521321
申请日：2021-11-08
Applicant: CORNING INCORPORATED
Inventor： James Lewis Dale , Raymond Miller Karam , Paul Ewing Langenbacher , Dragan Pikula , Daniel Ohen Ricketts , Ernesto Sanchez, JR. , ChuanChe Wang , Jia Zhang
Abstract: A liquid lens can include a first substrate with an interior recess. A second substrate with a bore can be bonded to the first substrate, whereby the interior recess of the first substrate and the bore of the second substrate cooperatively define at least a portion of a cavity of the liquid lens. A first liquid and a second liquid can be disposed in the cavity. A variable interface can be disposed between the first liquid and the second liquid, thereby forming a variable lens. The interior recess of the first substrate can be positioned outside of a sidewall projection of a sidewall surface of the cavity through the first substrate.
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公开(公告)号：US20210191069A1
公开(公告)日：2021-06-24
申请号：US17054933
申请日：2019-05-15
Applicant: CORNING INCORPORATED
Inventor： Raymond Miller Karam
Abstract: A liquid lens includes an orientation sensor such as a gyroscope to compensate for the effects of motion. A raw gyroscope signal, including noise components, can be provided to the controller without processing by phase-shifting filters. One or more filters can be applied to the raw gyroscope signal to allow a band of frequencies to pass without introducing phase delay. The controller can use a feed forward system to generate control output signals based at least in part on the raw gyroscope signal, including noise components. The control output signals can be used to drive voltage signals to electrodes to compensate for motion.
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公开(公告)号：US20210048368A1
公开(公告)日：2021-02-18
申请号：US16943721
申请日：2020-07-30
Applicant: CORNING INCORPORATED
Inventor： Raymond Miller Karam , Eric Louis Null
Abstract: A system includes a stage, a detector and a measuring device. The stage is configured to hold a substrate. The substrate includes a plurality of tapered structures, and each of the plurality of tapered structures includes a tapered wall between first and second openings at opposite ends of the plurality of tapered structures. The detector is tilted at a first angle and configured to measure light reflected from the tapered wall at about 90 degrees to the tapered wall. The first angle depends at least in part a second angle between the tapered wall and a longitudinal axis running through the tapered structure. The measuring device is configured to determine a characteristic of the tapered wall and whether the characteristic of the tapered wall is above or below a threshold.
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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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公开(公告)号：US20200096679A1
公开(公告)日：2020-03-26
申请号：US16500631
申请日：2018-04-05
Applicant: CORNING INCORPORATED
Inventor： Jann Paul Kaminski , Raymond Miller Karam , Dragan Pikula , Daniel Ohen Ricketts
Abstract: Control systems for liquid lenses can use feedback control using one or more measured parameters indicative of a position of the fluid interface in the liquid lens. Capacitance between a fluid and an electrode in the liquid lens can vary depending on the position of the fluid interface. Current mirrors can be used for making measurements indicative of the capacitance and/or the fluid interface position. The liquid lens can be calibrated using the measurements indicative of capacitance and/or fluid interface position as the voltage is driven across an operational range. A control system can use pulse width modulation (PWM) for driving a liquid lens, and a carrier frequency for the PWM signals can be varied to control power consumption in the liquid lens. The slew rate can be adjustable to control power consumption in the liquid lens.
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