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    Wearable Image Display System
    1.
    发明申请
    Wearable Image Display System 审中-公开

    公开(公告)号：US20190285899A1

    公开(公告)日：2019-09-19

    申请号：US16422645

    申请日：2019-05-24

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Tapani Levola ,  Pasi Saarikko ,  Steven John Robbins ,  Yarn Chee Poon ,  Lena Adele Wolfe ,  Erica Lee Towle

    IPC: G02B27/01 ,  G02B27/00 ,  F21V8/00 ,  G02B27/42 ,  G02B6/00 ,  G06T19/00

    Abstract: A wearable image display system includes a headpiece, a first and a second light engine, and a first and a second optical component. The first and second light engines generate a first and a second set of beams respectively, each beam substantially collimated so that the first and second set form a first and a second virtual image respectively. Each optical component is located to project an image onto a first and a second eye of a wearer respectively. The first and second sets of beams are directed to incoupling structures of the first and second optical components respectively. Exit structures of the first and second optical components guide the first and second sets of beams onto the first and second eyes respectively. The optical components are located between the light engines and the eyes. Both of the light engines are mounted to a central portion of the headpiece.

    IR ILLUMINATION MODULE FOR MEMS-BASED EYE TRACKING
    3.
    发明申请
    IR ILLUMINATION MODULE FOR MEMS-BASED EYE TRACKING 审中-公开

    公开(公告)号：US20200285848A1

    公开(公告)日：2020-09-10

    申请号：US16291256

    申请日：2019-03-04

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： Raymond Kirk Price ,  Yarn Chee Poon ,  Rachel N. Ulanch ,  Rashelle Kay Yee

    IPC: G06K9/00 ,  G06F3/01 ,  G02B26/08 ,  G02B27/01 ,  G02B27/00 ,  G02B27/30 ,  G02B26/10

    Abstract: An improved iris recognition illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's iris via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's iris. The photodetectors include an IR detector configured to detect reflected IR light off of the user's iris in order to perform iris recognition.

    IR illumination module for MEMS-based eye tracking
    4.
    发明授权
    IR illumination module for MEMS-based eye tracking 有权

    公开(公告)号：US10747313B1

    公开(公告)日：2020-08-18

    申请号：US16291260

    申请日：2019-03-04

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： Raymond Kirk Price ,  Yarn Chee Poon ,  Rachel N. Ulanch ,  Rashelle Kay Yee

    IPC: G06F3/01 ,  G02B27/00 ,  G09G3/02 ,  G02B26/10 ,  G02B26/08

    Abstract: An improved eye tracking illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's eye via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's eye. The photodetectors include an IR detector configured to detect reflected IR light off of the user's eye in order to perform eye tracking.

    IR illumination module for MEMS-based eye tracking
    6.
    发明授权
    IR illumination module for MEMS-based eye tracking 有权

    公开(公告)号：US11624906B2

    公开(公告)日：2023-04-11

    申请号：US16291252

    申请日：2019-03-04

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： Raymond Kirk Price ,  Yarn Chee Poon ,  Rachel N. Ulanch ,  Rashelle Kay Yee

    IPC: G02B27/00 ,  B81B7/00 ,  B81B7/02 ,  G06F3/01 ,  G02B27/01

    Abstract: An illumination system having a reduced z-dimensional profile, which is achieved by reflecting light out of plane relative to a light source that generated the light, is disclosed herein. This illumination system includes an IR illumination device, a collimating optic, a turning optic, and a waveguide. The turning optic is specially configured to receive IR light from the IR illumination device and to reflect the IR light out of plane relative to the emission orientation of the IR illumination device. The reflected IR light is reflected towards the collimating optic. The waveguide is positioned in a fixed position relative to the collimating optic and includes an input port or grating to receive the collimated IR light. By reflecting light out of the plane, the size of the illumination system can be beneficially reduced in the z-direction.

    Monitoring and correction system for improved laser display systems
    7.
    发明授权
    Monitoring and correction system for improved laser display systems 有权

    公开(公告)号：US11233980B2

    公开(公告)日：2022-01-25

    申请号：US16440597

    申请日：2019-06-13

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： Raymond Kirk Price ,  Yarn Chee Poon ,  Fei Chen

    IPC: H04N9/31 ,  G03B21/20 ,  G02B5/04

    Abstract: Techniques for improving laser image quality are disclosed herein. An ultra-compact illumination module includes multiple illuminators, photodetectors, and color filters. The illuminators each emit a different spectrum of light. Because of the compact nature of the module and the positioning of the illuminators relative to one another, the different spectrums of light overlap one another prior to being detected by the photodetectors. Each of the photodetectors is associated with a corresponding one of the illuminators, and each of the color filters is associated with a corresponding one of the photodetectors. Each color filter is positioned in-between its corresponding illuminator and photodetector and passes a particular spectrum of light while filtering out other spectrums of light. Consequently, the photodetectors each receive spectrally filtered light having passed through at least one of the color filters. The power output of the illuminators can also be corrected based on output from the photodetectors.

    Increased spectral linewidth and improved laser control
    10.
    发明授权
    Increased spectral linewidth and improved laser control 有权

    公开(公告)号：US10958032B2

    公开(公告)日：2021-03-23

    申请号：US16290666

    申请日：2019-03-01

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： Raymond Kirk Price ,  Novela Kristim Auparay ,  Yarn Chee Poon

    IPC: G03B21/20 ,  H04N9/31 ,  H01S3/00 ,  G02B26/12 ,  H03K5/04 ,  H03K7/08

    Abstract: Techniques are provided for increasing a laser light's spectral linewidth while simultaneously improving how a laser is controlled by causing the laser to operate at higher power levels. An illumination energy value for a pixel and an illumination time period for the pixel are both determined. A number of laser pulses that are to be emitted by the laser assembly to illuminate the pixel during the illumination time period is also determined. This number is based on the illumination energy value for the pixel. Then, within the illumination time period and in accordance with the determined number of laser pulses, the pixel is illuminated by causing the laser assembly to emit one or more laser pulses that cause the pixel to be illuminated at the illumination energy value.

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