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    Holographic storage
    21.
    发明授权
    Holographic storage 有权

    公开(公告)号：US11894035B2

    公开(公告)日：2024-02-06

    申请号：US17906793

    申请日：2021-02-22

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Douglas James Kelly ,  Benn Charles Thomsen ,  Dushyanth Narayanan ,  Antony Ian Taylor Rowstron ,  Andreas Georgiou

    IPC: G11B7/0065 ,  G11B7/135

    CPC classification number: G11B7/0065 ,  G11B7/135

    Abstract: A holographic data storage system comprises an emitter system, a holographic recording medium, and an input waveguide network formed of one or more multimode optical waveguides. The holographic recording medium has multiple recording regions, each optically coupled to a corresponding one of multiple out-coupling regions of the input waveguide network, the holographic data storage system arranged to persistently write data of an input beam, received at any one of the out-coupling regions, to the corresponding recording region. A controller is coupled to at least one of the emitter system and at least one controllable guiding element of the input waveguide network and controls at least one optical characteristic of the input beam or the at least one guiding element, so as to guide the input beam from an in-coupling region to any selected one of the multiple out-coupling regions. Similar waveguide networks are provided for carrying reference and output beams.

    Pixel sampling for spatial light modulator
    24.
    发明授权
    Pixel sampling for spatial light modulator 有权

    公开(公告)号：US11487109B2

    公开(公告)日：2022-11-01

    申请号：US17649782

    申请日：2022-02-02

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Joel Steven Kollin ,  Andreas Georgiou

    IPC: G02B27/00 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1362

    Abstract: An image forming system includes a spatial light modulator (SLM) including a plurality of pixels. Each pixel is configured to diffract incident light and cause the diffracted light to exit the SLM, where a first diffraction order of light exiting the SLM passes through a first exit pupil and higher diffraction orders of light exiting the SLM pass through additional exit pupils having different positions from the first exit pupil. Control logic operatively coupled to the plurality of pixels is configured to control each pixel to control its modulation of the light incident on the pixel and cause the plurality of pixels to collectively form an image at each exit pupil. A light source is configured to emit incident light toward the SLM. A resampling layer is configured to subsample each pixel electrode with two or more samples per pixel to increase a spacing between each exit pupil.

    Reduced bandwidth holographic near-eye display
    27.
    发明授权
    Reduced bandwidth holographic near-eye display 有权

    公开(公告)号：US11022939B2

    公开(公告)日：2021-06-01

    申请号：US15397646

    申请日：2017-01-03

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Andrew Maimone ,  Andreas Georgiou ,  Joel Steven Kollin

    IPC: G03H1/22 ,  G03H1/08 ,  G02B27/01 ,  G03H1/04 ,  G02B27/00 ,  G02B5/32 ,  G03H1/26

    Abstract: Examples are disclosed that relate to holographic near-eye display systems. One example provides a near-eye display device, comprising a diverging light source, an image producing dynamic digital hologram panel configured to receive light from the diverging light source and form an image. The near-eye display device also includes and a combiner comprising a holographic optical element positioned to receive light from the dynamic digital hologram panel and to redirect the light toward an eyebox, the holographic optical element being positioned between the eyebox and a view of an external environment to combine a view of the image formed by the dynamic digital hologram panel and the view of the external environment.

    Polarization-based dynamic focuser
    29.
    发明授权
    Polarization-based dynamic focuser 有权

    公开(公告)号：US10890768B2

    公开(公告)日：2021-01-12

    申请号：US16160831

    申请日：2018-10-15

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Joel Steven Kollin ,  Bernard Charles Kress ,  Andreas Georgiou

    IPC: G02B27/01 ,  F21V8/00 ,  G02B27/28 ,  G02F1/29

    Abstract: A polarization-based dynamic focuser for a near-eye display includes a first polarizer configured to polarize environmental light incident on the first polarizer, such that environmental light passing through the first polarizer toward a user eye has a first polarity. An image source is positioned between the user eye and the first polarizer. The image source is transparent to the environmental light and is configured to output image display light toward the user eye, at least some of the image display light having a second polarity. A dynamic lens is positioned between the user eye and the image source, and is configured to selectively focus incident light having the second polarity toward the user eye at a controllable virtual distance, where the dynamic lens does not affect incident light having the first polarity.

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