Controllable liquid crystal layered Fresnel lens device

    公开(公告)号:US11156895B2

    公开(公告)日:2021-10-26

    申请号:US16195014

    申请日:2018-11-19

    Abstract: A liquid crystal optical device providing refractive Fresnel lens type element control over light passing through an aperture is provided. The device includes a layer of liquid crystal material contained by flat substrates having flat alignment layers; and an arrangement of electrodes configured to provide a spatially varying voltage distribution within a number of lensing zones within said liquid crystal layer. The arrangement of electrodes includes ring-shaped electrodes defining boundaries between Fresnel lensing zones. The liquid crystal optical device is structured to provide a spatial variation in the optical phase delay with an abrupt transition at a boundary between lensing zones to increase the effective aperture of the optical device.

    VEHICLE HEADLIGHT BEAM CONTROL
    73.
    发明申请

    公开(公告)号:US20200231084A1

    公开(公告)日:2020-07-23

    申请号:US16487888

    申请日:2018-02-26

    Inventor: Tigran GALSTIAN

    Abstract: For vehicles having left and right headlights, a steering direction signal input indicative of a left or right steering direction is used to modulate a control signal of a liquid crystal beam broadening device to broaden horizontally the vehicle headlight beam when the steering direction signal input is indicative of a selected one of a left or a right steering direction and to maintain or reduce a horizontal spread of the vehicle headlight beam when said steering direction signal input is indicative of one of a left or a right steering direction opposite to the selected steering direction.

    VARIABLE FOCUS CAMERA LENS
    75.
    发明申请

    公开(公告)号:US20180173078A1

    公开(公告)日:2018-06-21

    申请号:US15736470

    申请日:2016-06-15

    Inventor: Peter CLARK

    Abstract: An autofocus camera assembly is described. The camera assembly includes an electrically controllable optical power lens and a lens assembly having a frame supporting at least one lens element near the electrically controllable optical power lens. The electrically controllable optical power lens is mounted to an object end of the frame. An aperture stop is provided located either at or within the electrically controllable optical power lens or on an external surface of the frame next to the electrically controllable optical power lens. The aperture stop can include an opaque mask and optionally alignment marks.

    INDUCTIVE COIL SENSOR FOR VISION CORRECTIVE APPARATUS AND METHODS THEREFOR
    78.
    发明申请
    INDUCTIVE COIL SENSOR FOR VISION CORRECTIVE APPARATUS AND METHODS THEREFOR 审中-公开
    用于视觉矫正装置的感应线圈传感器及其方法

    公开(公告)号:US20160081793A1

    公开(公告)日:2016-03-24

    申请号:US14956145

    申请日:2015-12-01

    Abstract: An ocular adaptive lens prosthesis apparatus is provided. In some implementations the apparatus includes a tunable liquid crystal lens encapsulated in the ocular prosthesis with control electronics and a power source. The tunable liquid crystal lens is driven in response to a convergence signal to provide accommodation. In some embodiments the tunable liquid crystal device corrects other visual shortcomings of the natural eye. The ocular prosthesis has a remote programmable tunable liquid crystal lens controller configured to recalibrate the tunable liquid crystal lens to compensate for dynamic adaptation of the eye over time. A coil is employed to transmit a convergence signal between a pair of ocular prostheses in a dual eye vision correction system.

    Abstract translation: 提供一种眼睛适应镜片假体装置。 在一些实施方案中,该装置包括用控制电路和电源封装在眼用假体中的可调谐液晶透镜。 可调谐液晶透镜响应于会聚信号被驱动以提供调节。 在一些实施例中,可调谐液晶装置校正天然眼睛的其它视觉缺陷。 眼睛假体具有远程可编程可调液晶镜头控制器,其被配置为重新校准可调谐液晶透镜以补偿眼睛随时间的动态适应。 线圈用于在双眼视力矫正系统中的一对眼用假体之间传递收敛信号。

    LIQUID CRYSTAL OPTICAL DEVICE WITH ADVANCED ELECTRIC FIELD CONTROL CAPABILITY
    79.
    发明申请
    LIQUID CRYSTAL OPTICAL DEVICE WITH ADVANCED ELECTRIC FIELD CONTROL CAPABILITY 有权
    具有先进电场控制能力的液晶光学器件

    公开(公告)号:US20160000557A1

    公开(公告)日:2016-01-07

    申请号:US14653574

    申请日:2013-12-18

    Abstract: A liquid crystal optical device is provided, including a layered structure including at least two support substrates. An external hole patterned control electrode is provided on one of the substrates and has an aperture. An internal hole patterned control electrode is provided on one of the substrates within the aperture, the internal and outer control electrodes being separated by a gap, which forms part of the aperture. A weakly conductive material is provided on one of the substrates over the aperture. A planar transparent electrode is provided on another one of the substrates. An alignment surface is provided on the substrates over the electrodes. A layer of liquid crystal material is contained by the substrates and in contact with the alignment surface of the substrates. A floating transparent electrode is provided on a side of one of the substrates opposite the outer and the internal hole patterned electrode.

    Abstract translation: 提供了一种液晶光学器件,其包括包括至少两个支撑衬底的层状结构。 一个外部孔图案化控制电极设置在其中一个基板上并且具有孔。 孔内图案化的控制电极设置在孔内的一个基板上,内部和外部控制电极被形成孔的一部分的间隙分开。 在孔上的一个基底上提供弱导电材料。 平面透明电极设置在另一个基板上。 在电极上的基板上设置对准表面。 液晶材料层由基板包含并与基板的对准表面接触。 浮置的透明电极设置在与外部和内部孔图案化电极相对的一个基板的一侧上。

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