ELECTROWETTING ASSEMBLY TECHNIQUE AND CELL STRUCTURE

    公开(公告)号:US20180292642A1

    公开(公告)日:2018-10-11

    申请号:US15479857

    申请日:2017-04-05

    CPC classification number: G02B26/005 G02B26/001

    Abstract: The examples herein relate to assembly techniques and structures for an electrowetting cell, e.g. a fluid lens, a fluid prism or a single cell that may support both variable lens and variable prism functions. The resulting cell structure, for example, may support both beam shaping and steering functions, e.g. supporting use of the same electrowetting cell structure for a wider variety of optical processing applications. The resulting cell may be used in combination with an optical/electrical transducer or an array of cells may be used with a transducer in systems for a various light input and/or output applications.

    INTELLIGENT SELF-HEALING OF ELECTROWETTING DEVICES

    公开(公告)号:US20180217370A1

    公开(公告)日:2018-08-02

    申请号:US15421896

    申请日:2017-02-01

    Inventor: Gregory MALONE

    CPC classification number: G02B26/005 H02M3/33507

    Abstract: The disclosed examples relate to methods and systems facilitate self-healing of regions of electrowetting devices. Electrowetting devices may be coupled to a switchable AC/DC electrical power supply that provides AC power to the electrowetting device to control electrowetting device operation and DC power to promote self-healing of the electrowetting device. A monitoring circuit outputs a signal in response to electrical power supply operating characteristic changes due to a failure of the electrowetting device's dielectric. The controller, responding to the signal, switches the power supply output from AC power to DC power to the electrowetting device. In response to the DC power, the electrowetting device responds by healing the degraded dielectric. When the failure is determined to be corrected, the power supply output is switched from DC power to AC power to the electrowetting device. The number of times self-healing is applied may be tracked for future analysis.

    PROGRAMMABLE DC-DC DRIVER SYSTEM
    3.
    发明申请

    公开(公告)号:US20210265917A1

    公开(公告)日:2021-08-26

    申请号:US17173567

    申请日:2021-02-11

    Abstract: For a programmable direct current (DC)-DC converter application, a driver system includes a switched mode power circuit for providing a DC power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one real-time input signal from a low voltage region of the switched mode power circuit and to provide at least one control signal to the low voltage region. Control block configures the switched mode power circuit to provide the DC power signal having at least one power parameter within a tolerance of a power configuration setting value of the electrical load. Control block responds to the at least one real-time input signal from the low voltage region to adjust operation of the low voltage region via the at least one control signal. Low voltage region can include a plurality of switched converter circuits.

    PROGRAMMABLE MULTI-STAGE DRIVER SYSTEM

    公开(公告)号:US20210265838A1

    公开(公告)日:2021-08-26

    申请号:US17171301

    申请日:2021-02-09

    Abstract: A multi-stage driver system includes a switched mode power circuit for providing a direct current (DC) power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one real-time input signal from a high voltage region or a low voltage region of the switched mode power circuit and to provide at least one control signal to the high voltage region or the low voltage region. Control block configures the switched mode power circuit to provide the DC power signal having at least one power parameter within a tolerance of a power configuration setting value of the electrical load. Control block responds to the at least one real-time input signal from the high voltage region or the low voltage region to adjust operation of the high voltage region or the low voltage region via the at least one control signal.

    INDICATION OF ULTRAVIOLET (UV) LIGHT INTENSITY USING A LUMIPHORE

    公开(公告)号:US20210318168A1

    公开(公告)日:2021-10-14

    申请号:US16848226

    申请日:2020-04-14

    Abstract: A ultraviolet (UV) intensity indicator might use a UV responsive lumiphore to provide a converted, visible light level proportional to received UV light intensity for comparison to a visible brightness reference. For a desired UV intensity, the converted light should normally appear at least as bright as the reference light. For undesired UV, e.g. in a harmful wavelength range, the converted light should appear dimmer than the reference for normal operation and/or appear as bright as or brighter than the reference during excessive emission of the potentially hazardous UV emission. Alternatively, saturable lumiphores may provide different color outputs responsive to UV intensities for comparison to a multi-colored reference. Other examples contemplate use of a lumiphore to convert UV light to provide a visible light input to a visible light meter, such that an illuminance or brightness measurement by the meter gives a proportional representation of intensity of the UV light.

    MULTI-STAGE DRIVER SYSTEM ARCHITECTURE

    公开(公告)号:US20210265907A1

    公开(公告)日:2021-08-26

    申请号:US17150175

    申请日:2021-01-15

    Abstract: A multi-stage driver system includes a switched mode power circuit for providing power to different electrical load(s). Multi-stage driver system includes a control block including at least one microcontroller coupled to control operations of the switched mode power circuit. Switched mode power circuit includes a high voltage region, a low voltage region, and an isolation barrier. High voltage region of the switched mode power circuit includes a switched rectifier and a switched bridge circuit configured to produce a high voltage bidirectional pulse train signal for output to an isolation barrier. Low voltage region of the switched mode power circuit includes a rectification circuit coupled to the isolation barrier and at least one switched converter circuit coupled to the rectification circuit. Control block receives real-time input signals (e.g., analog voltage reading(s)) from the high and low voltage regions and responsively produces control signals to the high and low voltage regions.

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