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    PORTABLE HYDRATION SENSOR
    23.
    发明申请
    PORTABLE HYDRATION SENSOR 审中-公开
    便携式水化传感器

    公开(公告)号：WO2017192429A1

    公开(公告)日：2017-11-09

    申请号：PCT/US2017/030356

    申请日：2017-05-01

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： BONIFAS, Andrew P. ,  JESME, Ronald D. ,  GABRIEL, Nicholas T. ,  OUDERKIRK, Andrew J. ,  MCDOWELL, Erin A.

    IPC: A61B5/01 ,  A61B5/00

    Abstract: A portable sensor for measuring a hydration level of an object in close physical proximity with the sensor includes a portable housing having a total volume of less than about 50 cm3. First circuitry disposed in the housing includes a thermal source, a controller electrically coupled to the thermal source, a temperature sensing element, and a processor coupled to the temperature sensing element. When the object is in close physical proximity with the sensor, the thermal source is energized by the controller with a signal having a known function of time. The object affects a time variation of a temperature of the thermal source, the temperature sensing element senses the affected time variation of the temperature of the thermal source, and the processor determines a hydration level of the object based on a characteristic of the affected time variation of the temperature of the thermal source.

    Abstract translation: 用于测量与传感器紧密物理接近的物体的水合水平的便携式传感器包括具有小于约50cm 3的总体积的便携式外壳。 布置在壳体中的第一电路包括热源，电耦合到热源的控制器，温度感测元件和耦合到温度感测元件的处理器。 当物体与传感器物理接近时，控制器利用具有已知时间函数的信号激励热源。 物体影响热源的温度的时间变化，温度感测元件感测受影响的热源温度的时间变化，并且处理器基于受影响的时间变化的特性来确定物体的水合水平 的热源温度。

    MULTI-MODE DISPLAY
    24.
    发明申请
    MULTI-MODE DISPLAY 审中-公开
    多模式显示

    公开(公告)号：WO2017066020A1

    公开(公告)日：2017-04-20

    申请号：PCT/US2016/055119

    申请日：2016-10-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： OUDERKIRK, Andrew J. ,  WONG, Timothy L. ,  MCDOWELL, Erin A.

    IPC: G02F1/1335 ,  H01L27/32

    CPC classification number: G02F1/133555 ,  G02F1/133553 ,  G02F2001/133557 ,  G02F2201/44 ,  H01L27/3232

    Abstract: Multi-mode displays are described. In particular, multi-mode displays having an emissive display element, a partial reflector disposed on the emissive display element, a spatial light modulator disposed on the partial reflector, and an absorbing polarizer disposed on the spatial light modulator are described. Multi-mode displays having at least reflective display modes and emissive display modes are described. The display is configured such that switching between these modes happens quickly or even automatically.

    Abstract translation:

    描述多模式显示。 具体而言，描述了具有发射型显示元件，设置在发射型显示元件上的部分反射器，设置在部分反射器上的空间光调制器以及设置在空间光调制器上的吸收型偏振器的多模式显示器。 描述了具有至少反射型显示模式和发射型显示模式的多模式显示器。 显示器的配置使得这些模式之间的切换很快甚至自动发生。

    COMPACT PROJECTION SYSTEMS AND RELATED COMPONENTS
    28.
    发明申请
    COMPACT PROJECTION SYSTEMS AND RELATED COMPONENTS 审中-公开
    紧凑型投影系统及相关组件

    公开(公告)号：WO2016109244A1

    公开(公告)日：2016-07-07

    申请号：PCT/US2015/066563

    申请日：2015-12-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： OUDERKIRK, Andrew J. ,  MCDOWELL, Erin A. ,  YUN, Zhisheng

    IPC: G03B21/00 ,  H04N5/74

    CPC classification number: H04N9/3105 ,  F21K9/61 ,  G02B27/286 ,  G02F1/1313 ,  G02F1/133536 ,  G03B21/005 ,  G03B21/2033 ,  G03B21/2066 ,  G03B21/2073 ,  G03B33/12 ,  H04N5/7441 ,  H04N5/7458 ,  H04N9/3167

    Abstract: Projection systems and components thereof are described that are well suited to miniaturization. These systems and components may use one or more of the following features: a folded optical path, as in a reflective cavity or a beamsplitter; an illumination beam that is converging at the place where it impinges upon the spatial light modulator; a beamsplitter that uses opposed prisms of substantially different sizes; a beamsplitter whose obliquely disposed partial reflector defines a first rectangular reference space, and where at least a portion of the light source or at least a portion of the projector lens is disposed within such first rectangular reference space; a system in which a ratio of areas of the first rectangular reference space and a second rectangular reference space is within a specified range, where the second rectangular reference space is just large enough to encompass the optical components of the projector; a system in which the projector lens is small compared to the spatial light modulator.

    Abstract translation: 描述了非常适合小型化的投影系统及其组件。 这些系统和组件可以使用以下特征中的一个或多个：折叠光路，如在反射腔或分束器中; 照射光束在其照射到空间光调制器的位置处会聚; 一个使用相当大小不同棱镜的分光镜; 分光镜，其倾斜设置的部分反射器限定第一矩形参考空间，并且其中所述光源的至少一部分或所述投影透镜的至少一部分设置在所述第一矩形参考空间内; 其中所述第一矩形参考空间和第二矩形参考空间的面积的比率在规定范围内的系统，其中所述第二矩形参考空间刚好足够大以包围所述投影仪的所述光学部件; 与空间光调制器相比，投影透镜小的系统。

    OPTICAL SYSTEM
    30.
    发明申请
    OPTICAL SYSTEM 审中-公开

    公开(公告)号：WO2018163035A1

    公开(公告)日：2018-09-13

    申请号：PCT/IB2018/051353

    申请日：2018-03-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： YUN, Zhisheng ,  WONG, Timothy L. ,  MCDOWELL, Erin A.

    IPC: G02B17/08 ,  G02B27/28 ,  G02B27/01

    Abstract: An optical system for displaying an image to a viewer includes a partial reflector, a reflective polarizer, and a first retarder layer. A light ray propagates along the optical axis and passes through the plurality of optical lenses, the partial reflector, the reflective polarizer, and the first retarder layer without being substantially refracted. For a cone of light incident on the optical system from an object comprising a spatial frequency of about 70, 60, 50, 40, or 30 line pairs per millimeter and filling the exit pupil with a chief ray of the cone of light passing through a center of the opening of the exit pupil of the optical system and making an angle of about 20 degrees with the optical axis, a modulation transfer function of the optical system is greater than about 0.2.

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