A BEAM SHAPING DEVICE WITH IMPROVED PERFORMANCE

    公开(公告)号:WO2021223021A1

    公开(公告)日:2021-11-11

    申请号:PCT/CA2021/050621

    申请日:2021-05-04

    Abstract: Liquid crystal (LC) beam control devices using a dispersion shaped (DS) half wave plate (HWP), with specific physical characteristics, allows the broadened beam to maintain significantly better the color cohesion. Beneficial aspects of using a HWP with an appropriate thickness and birefringence index which makes it inefficient in the blue wavelength spectrum, therefore reducing the blue photon depletion in the center of the broadened beam is described herein. Combinations of an homeotropic LC cell and DS HWP structures for reduced color separation, faster relaxation time and reduced ground state scattering is further described herein.

    VARIABLE FOCUS CAMERA LENS
    92.
    发明申请
    VARIABLE FOCUS CAMERA LENS 审中-公开
    变焦聚焦相机镜头

    公开(公告)号:WO2016201565A1

    公开(公告)日:2016-12-22

    申请号:PCT/CA2016/050690

    申请日:2016-06-15

    Inventor: CLARK, Peter

    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.

    Abstract translation: 描述自动对焦照相机组件。 相机组件包括电可控光焦度透镜和透镜组件,其具有支撑靠近电可控光学透镜的至少一个透镜元件的框架。 电可控光功率透镜安装到框架的物体端。 提供了一个孔径光阑,位于电可控光功率透镜的内部或内部,或位于电可控光功率透镜旁边的框架的外表面上。 孔径光阑可以包括不透明掩模和可选的对准标记。

    LIQUID CRYSTAL OPTICAL DEVICE WITH ADVANCED ELECTRIC FIELD CONTROL CAPABILITY
    93.
    发明申请
    LIQUID CRYSTAL OPTICAL DEVICE WITH ADVANCED ELECTRIC FIELD CONTROL CAPABILITY 审中-公开
    具有先进电场控制能力的液晶光学器件

    公开(公告)号:WO2014094165A1

    公开(公告)日:2014-06-26

    申请号:PCT/CA2013/050988

    申请日:2013-12-18

    Abstract: A liquid crystal optical device is provided. The optical device includes 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 control electrode and the outer control electrode being separated by a gap. The gap 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: 提供一种液晶光学器件。 光学装置包括包括至少两个支撑基板的分层结构。 一个外部孔图案化控制电极设置在一个基板上并具有孔。 内孔图案化的控制电极设置在孔内的一个基板上,内部控制电极和外部控制电极被间隙分开。 间隙形成孔径的一部分。 弱导电材料设置在孔上的一个基板上。 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。 浮动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。

    CALIBRATION OF TUNABLE LIQUID CRYSTAL OPTICAL DEVICE
    94.
    发明申请
    CALIBRATION OF TUNABLE LIQUID CRYSTAL OPTICAL DEVICE 审中-公开
    可调节液晶光学器件的校准

    公开(公告)号:WO2012037684A1

    公开(公告)日:2012-03-29

    申请号:PCT/CA2011/050583

    申请日:2011-09-21

    CPC classification number: G02F1/13306 G02F2203/60

    Abstract: A tunable liquid crystal optical device is described. The optical device has an electrode arrangement associated with a liquid crystal cell and includes a hole patterned electrode, wherein control of the liquid crystal cell depends on electrical characteristics of liquid crystal optical device layers. The optical device further has a circuit for measuring said electrical characteristics of the liquid crystal optical device layers, and a drive signal circuit having at least one parameter adjusted as a function of the measured electrical characteristics. The drive signal circuit generates a control signal for the electrode arrangement.

    Abstract translation: 描述了可调谐液晶光学器件。 光学器件具有与液晶单元相关联的电极布置,并且包括孔图案化电极,其中液晶单元的控制取决于液晶光学器件层的电特性。 光学装置还具有用于测量液晶光学器件层的所述电特性的电路,以及具有根据所测量的电特性调整的至少一个参数的驱动信号电路。 驱动信号电路产生用于电极装置的控制信号。

    WAFER LEVEL CAMERA MODULE WITH ACTIVE OPTICAL ELEMENT
    95.
    发明申请
    WAFER LEVEL CAMERA MODULE WITH ACTIVE OPTICAL ELEMENT 审中-公开
    具有活性光学元件的水平相机模块

    公开(公告)号:WO2011008443A3

    公开(公告)日:2011-11-10

    申请号:PCT/US2010039595

    申请日:2010-06-23

    CPC classification number: H04N5/2257

    Abstract: A wafer level camera module may be easily connected to a host device via mounting surface contacts. The module includes an electrically controllable active optical element and a flexible printed circuit that provides electrical connection between the optical element and surface conductors on a mounting surface of the module. The surface conductors may be a group of solder balls, and the module may have another group of solder balls that make connection to another electrical component of the module, such as an image sensor. All of the solder balls may be coplanar in a predetermined grid pattern, and all of the components of the device may be surrounded by a housing such that the camera module is an easily mounted ball grid array type package.

    Abstract translation: 晶片级摄像机模块可以通过安装表面触点容易地连接到主机设备。 该模块包括电可控有源光学元件和柔性印刷电路,其在模块的安装表面上的光学元件和表面导体之间提供电连接。 表面导体可以是一组焊球,并且该模块可以具有另一组焊球,其与模块的另一电气部件(例如图像传感器)连接。 所有的焊球可以以预定的网格图案共面,并且设备的所有部件可以被壳体包围,使得相机模块是容易安装的球栅阵列型封装。

    CAMERA MODULE WITH TOLERANCE ADJUSTMENT USING EMBEDDED ACTIVE OPTICS
    96.
    发明申请
    CAMERA MODULE WITH TOLERANCE ADJUSTMENT USING EMBEDDED ACTIVE OPTICS 审中-公开
    使用嵌入式有源光学器件进行容差调整的相机模块

    公开(公告)号:WO2010129460A1

    公开(公告)日:2010-11-11

    申请号:PCT/US2010/033357

    申请日:2010-05-03

    CPC classification number: H04N5/2254 H04N5/2257 Y10T29/49002 Y10T29/49004

    Abstract: A focus free camera module uses fixed lenses within a housing that are combined with an electrically controllable active optical element, such as a tunable liquid crystal lens. The fixed lenses provide a desired amount of optical power, but the manufacturing tolerances of the module are insufficient to ensure a proper focus of an image on an image sensor. The active optical element is therefore used to compensate for any variations in the optical power to achieve the desired focus. To ensure an effective compensation, the module may be constructed so that, when the variation in optical power due to manufacturing tolerances is at a maximum, the desired focus is achieved when the active optical element is at zero optical power. All other variations may then be compensated by adjusting the active optical element to increase its optical power.

    Abstract translation: 无焦距相机模块在外壳内使用固定透镜,其与诸如可调谐液晶透镜的电可控有源光学元件组合。 固定透镜提供所需量的光功率,但是模块的制造公差不足以确保图像在图像传感器上的适当聚焦。 因此,有源光学元件用于补偿光功率中的任何变化以实现期望的焦点。 为了确保有效的补偿,模块可以被构造成使得当由于制造公差而导致的光功率变化最大时,当有源光学元件处于零光功率时,实现期望的聚焦。 然后可以通过调节有源光学元件来增加其光功率来补偿所有其它变化。

    METHOD OF MANUFACTURING A LIQUID CRYSTAL DEVICE
    97.
    发明申请
    METHOD OF MANUFACTURING A LIQUID CRYSTAL DEVICE 审中-公开
    制造液晶装置的方法

    公开(公告)号:WO2010075627A1

    公开(公告)日:2010-07-08

    申请号:PCT/CA2009/001820

    申请日:2009-12-18

    Abstract: A wafer level method of manufacturing a liquid crystal optical device removes the need for a rigid barrier fillet while minimizing any risk of contamination of the liquid crystal. An uncured adhesive may be deposited on a bottom substrate and partially cured to form a liquid crystal barrier. After addition of the liquid crystal and a top substrate, the adhesive is fully cured to bond the substrate layers together. An uncured adhesive may be used together with the partially cured adhesive, and may be deposited separately or filled into an extracellular matrix surrounding a plurality of liquid crystal cells. The adhesive may be cured by a variety of means, including light that may be spatially modulated. One or both of the substrates may be deformed during assembly so as to create a structure with a lensing effect on light passing through the liquid crystal region.

    Abstract translation: 制造液晶光学器件的晶片级方法消除了对刚性屏障圆角的需要,同时最小化液晶污染的任何风险。 未固化的粘合剂可以沉积在底部基底上并部分固化以形成液晶屏障。 在添加液晶和顶部基底之后,粘合剂被完全固化以将基底层粘合在一起。 未固化的粘合剂可以与部分固化的粘合剂一起使用,并且可以单独沉积或填充到围绕多个液晶单元的细胞外基质中。 粘合剂可以通过各种手段固化,包括可以进行空间调制的光。 一个或两个基板在组装期间可能变形,以便产生对通过液晶区域的光具有透镜效应的结构。

    WAFER-LEVEL FABRICATION OF LIQUID CRYSTAL OPTOELECTRONIC DEVICES
    98.
    发明申请
    WAFER-LEVEL FABRICATION OF LIQUID CRYSTAL OPTOELECTRONIC DEVICES 审中-公开
    液晶光电器件的水平制造

    公开(公告)号:WO2010022503A1

    公开(公告)日:2010-03-04

    申请号:PCT/CA2009/001181

    申请日:2009-09-01

    Abstract: Liquid crystal optoelectronic devices are produced by fabricating a wafer- level component structure and affixing a plurality of discrete components to a surface structure prior to singulating the individual devices therefrom. After singulation, the individual devices include a portion of the wafer-level fabricated structure and at least of the discrete components. The wafer-level structure may include a liquid crystal and controlling electrodes, and the discrete components may include fixed lenses or image sensors. The discrete components may be located on either or both of two sides of the wafer-level structure. Multiple liquid crystal layers may be used to reduce nonuniformities in the interaction with light from different angles, and to control light of different polarizations. The liquid crystal devices may function as optoelectronic devices such as tunable lenses, shutters or diaphragms.

    Abstract translation: 液晶光电子器件通过制造晶片级元件结构,并在将单个器件从单元中分离之前将多个分立元件固定到表面结构上。 在分离之后,各个器件包括晶片级制造结构的一部分和至少分立元件。 晶片级结构可以包括液晶和控制电极,并且分立元件可以包括固定透镜或图像传感器。 分立组件可以位于晶片级结构的两侧中的任一侧或两侧。 可以使用多个液晶层来减少与来自不同角度的光的相互作用中的不均匀性,并且控制不同偏振的光。 液晶装置可以用作光电器件,例如可调透镜,快门或隔膜。

    LIQUID CRYSTAL LENS USING SURFACE PROGRAMMING
    99.
    发明申请
    LIQUID CRYSTAL LENS USING SURFACE PROGRAMMING 审中-公开
    使用表面编程的液晶镜头

    公开(公告)号:WO2010006420A1

    公开(公告)日:2010-01-21

    申请号:PCT/CA2009000952

    申请日:2009-07-14

    Inventor: GALSTIAN TIGRAN

    Abstract: A liquid crystal lens or beam steering device is made by programming alignment surfaces of the LC cell walls using a programming field to align the alignment surface molecules before fixing them. By setting the desired pre-tilt, the lens can operate in the absence of the control field, and power consumption by the control field can be reduced.

    Abstract translation: 液晶透镜或光束转向装置通过使用编程区域编程LC单元壁的对准表面来制作,以在固定它们之前对准取向表面分子。 通过设置所需的预倾斜,透镜可以在没有控制场的情况下操作,并且可以减少由控制场的功率消耗。

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