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    IMAGE SENSING WITH A WAVEGUIDE DISPLAY
    1.
    发明申请
    IMAGE SENSING WITH A WAVEGUIDE DISPLAY 审中-公开

    公开(公告)号：US20170255813A1

    公开(公告)日：2017-09-07

    申请号：US15282434

    申请日：2016-09-30

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Liying Chen ,  Yan Cheng

    IPC: G06K9/00 ,  F21V8/00 ,  G02B5/32 ,  G03H1/02

    CPC classification number: G06K9/00033 ,  G02B5/32 ,  G02B6/0015 ,  G02B6/0026 ,  G02B6/34 ,  G03H1/0248 ,  G03H2222/45 ,  G03H2260/12 ,  G06K9/00046

    Abstract: An electronic device includes an image sensing display. The display includes a cover glass and is configured as a waveguide. A volume holographic grating in the display diffracts incident light from an object positioned outside the display. The diffracted incident light has an angle of incidence relative to the volume holographic grating that satisfies the Bragg condition. The volume holographic grating diffracts the incident light through the waveguide at a predetermined angle and with a predetermined waveguide exit distance to focus at the image sensor. An image sensor is positioned at an output of the waveguide to capture the diffracted incident light propagated through the waveguide. Image processing circuitry is coupled to the image sensor to recognize a fingerprint image captured by the image sensor through the waveguide.

    Asymmetric aberration correcting lens
    4.
    发明授权
    Asymmetric aberration correcting lens 有权

    公开(公告)号：US09638835B2

    公开(公告)日：2017-05-02

    申请号：US13786233

    申请日：2013-03-05

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Liying Chen

    IPC: G02B3/02 ,  G02B3/00 ,  H04N5/225 ,  F21V8/00

    CPC classification number: G02B3/00 ,  G02B6/0046 ,  H04N5/2254

    Abstract: An asymmetric aberration correcting lens is described. In one or more implementations, a lens includes multiple lens elements that are configured to focus an image from an imaging component. The multiple lens elements include an optical lens element that is configured to redirect the image so that the image passes through the lens. Further, the multiple lens elements include an asymmetric element configured to correct asymmetric aberration caused by the imaging component.

    Fingerprint Detection with Transparent Cover
    5.
    发明申请
    Fingerprint Detection with Transparent Cover 有权
    透明盖指纹检测

    公开(公告)号：US20160247010A1

    公开(公告)日：2016-08-25

    申请号：US14628293

    申请日：2015-02-22

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： Jiandong Huang ,  Liying Chen

    IPC: G06K9/00 ,  G02B5/20

    CPC classification number: G06K9/00046 ,  G02B5/20 ,  G06K9/0004 ,  G06K9/00087

    Abstract: An electronic device includes a transparent cover and a light source disposed at an edge of the transparent cover. The light source is configured to inject light into the transparent cover. The transparent cover guides the light until interaction with a fingerprint ridge at the transparent cover. The electronic device further includes a filter disposed along the transparent cover. The filter is configured to selectively allow the light scattered by the fingerprint ridge to pass through the filter. A detector generates a signal indicative of the scattered light allowed through the filter.

    Abstract translation: 电子设备包括透明盖和设置在透明盖的边缘处的光源。 光源被配置为将光注入到透明盖中。 透明盖子引导灯，直到与透明盖子上的指纹脊相互作用。 电子设备还包括沿透明盖设置的过滤器。 过滤器被配置为选择性地允许由指纹脊散射的光通过过滤器。 检测器产生指示通过滤波器允许的散射光的信号。

    Image sensing with a waveguide display
    6.
    发明授权
    Image sensing with a waveguide display 有权

    公开(公告)号：US10387710B2

    公开(公告)日：2019-08-20

    申请号：US15282434

    申请日：2016-09-30

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Liying Chen ,  Yan Cheng

    IPC: F21V8/00 ,  G02B5/32 ,  G02B6/34 ,  G03H1/02 ,  G06K9/00

    Abstract: An electronic device includes an image sensing display. The display includes a cover glass and is configured as a waveguide. A volume holographic grating in the display diffracts incident light from an object positioned outside the display. The diffracted incident light has an angle of incidence relative to the volume holographic grating that satisfies the Bragg condition. The volume holographic grating diffracts the incident light through the waveguide at a predetermined angle and with a predetermined waveguide exit distance to focus at the image sensor. An image sensor is positioned at an output of the waveguide to capture the diffracted incident light propagated through the waveguide. Image processing circuitry is coupled to the image sensor to recognize a fingerprint image captured by the image sensor through the waveguide.

    IMAGE SENSING WITH A DISPLAY
    7.
    发明申请
    IMAGE SENSING WITH A DISPLAY 审中-公开

    公开(公告)号：US20180268189A1

    公开(公告)日：2018-09-20

    申请号：US15985504

    申请日：2018-05-21

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Jiandong Huang ,  Timothy Andrew Large ,  Liying Chen ,  Steven Nabil Bathiche

    IPC: G06K9/00 ,  H04N5/369 ,  G06F3/041 ,  H04N5/225 ,  H01L27/32 ,  H01L27/146 ,  G06T11/60 ,  G06K9/20 ,  G06F3/045 ,  G06F3/044 ,  G06F3/042

    Abstract: An electronic device includes a cover glass having a display surface, a pixelated photoemitting element array, and a pixelated photodetecting element array. The pixelated photoemitting element array emits a light signal through the cover glass to the display surface. The pixelated photodetecting element array is positioned relative to the pixelated photoemitting element array and the cover glass to receive a reflected light signal. The reflected light signal includes a portion of the emitted light signal reflected by total internal reflection from a refractive boundary at the display surface. Operation of each pixel is switched between the one or more photodetecting elements and the one or more photoemitting elements by the pixel selector signal component received from the pixel selector signal bus. A sensing trigger is configured to trigger the imaging scan by the pixelated photoemitting element array and the pixelated photodetecting element array, responsive to detection of an initiating action.

    Image sensing with a display
    8.
    发明授权
    Image sensing with a display 有权

    公开(公告)号：US10043050B2

    公开(公告)日：2018-08-07

    申请号：US15221418

    申请日：2016-07-27

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Jiandong Huang ,  Timothy Andrew Large ,  Liying Chen ,  Steven Nabil Bathiche

    IPC: G06K9/00 ,  G06T11/60 ,  G06F3/041 ,  G06F3/042 ,  G06F3/044 ,  G06F3/045 ,  G06K9/20 ,  H04N5/225 ,  H04N5/369 ,  H01L27/146 ,  H01L27/32

    Abstract: An electronic device includes a cover glass having a display surface, a pixelated photoemitting element array, and a pixelated photodetecting element array. The pixelated photoemitting element array emits a light signal through the cover glass to the display surface. The pixelated photodetecting element array is positioned relative to the pixelated photoemitting element array and the cover glass to receive a reflected light signal. The reflected light signal includes a portion of the emitted light signal reflected by total internal reflection from a refractive boundary at the display surface. Operation of each pixel is switched between the one or more photodetecting elements and the one or more photoemitting elements by the pixel selector signal component received from the pixel selector signal bus. A sensing trigger is configured to trigger the imaging scan by the pixelated photoemitting element array and the pixelated photodetecting element array, responsive to detection of an initiating action.

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