LIQUID LENS DESIGN VARIANT WITH TEMPERATURE SENSOR ON THE OUTSIDE

    公开(公告)号:US20210048602A1

    公开(公告)日:2021-02-18

    申请号:US16943732

    申请日:2020-07-30

    Abstract: A liquid lens apparatus includes a first substrate and a sensor. The first substrate has first and second opposing surfaces, a central portion, and a peripheral portion outside of the central portion. The sensor is formed lithographically on either the first or second surfaces of the peripheral portion of the first substrate such that the sensor is on an exterior surface of the liquid lens apparatus. The sensor is configured to detect a temperature of the liquid lens apparatus to enable compensation for thermal expansion or contraction of the liquid lens apparatus resulting from changes in temperature of the liquid lens apparatus.

    LIQUID LENS
    5.
    发明公开
    LIQUID LENS 审中-公开

    公开(公告)号:US20240176050A1

    公开(公告)日:2024-05-30

    申请号:US18520819

    申请日:2023-11-28

    CPC classification number: G02B3/12 G02B1/041 G02B7/08 G02B26/005

    Abstract: A liquid lens includes an intermediate layer having a tapered cavity. First and second outer layers are bonded to top and bottom sides, respectively of the intermediate layer. The liquid lens further includes a chamber that is formed, at least in part by the tapered cavity, and the first and second outer layers. A fluid interface is disposed between first and second fluids in the chamber. The liquid lens further includes first and second electrodes on a top side of the liquid lens. The second electrode is in electrical communication with the first fluid, whereby a position of the fluid interface is based at least in part on voltage applied between the first and second electrodes. The intermediate layer may optionally comprise silicon or glass.

    THERMALLY COMPENSATED MICROFLUIDIC STRUCTURES

    公开(公告)号:US20210060551A1

    公开(公告)日:2021-03-04

    申请号:US16943743

    申请日:2020-07-30

    Abstract: Exemplary liquid lenses generally include two liquids disposed within a microfluidic cavity disposed between a first window and a second window. Applying varying electric fields to these liquid lenses can vary the wettability of one of the liquids with respect to this microfluidic cavity, thereby varying the shape and/or the curvature of the meniscuses formed between the two liquids and, thus, changing the optical focal length or the optical power of the liquid lenses. These liquids can expand and/or contract as result of varying temperatures. The exemplary liquid lenses include one or more thermal compensation chambers to allow these liquids to expand and/or contract without impacting the integrity of the microfluidic cavity, for example, without bowing or deflecting the first window and/or the second window.

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