IMAGING SYSTEM
    2.
    发明申请
    IMAGING SYSTEM 审中-公开

    公开(公告)号:US20180188426A1

    公开(公告)日:2018-07-05

    申请号:US15850111

    申请日:2017-12-21

    Abstract: An imaging system is provided. The imaging system includes a display including a first display half screen and a second display half screen, a retroreflective device provided on the display, a first beam splitter facing the first display half screen, a second beam splitter facing the second display half screen, a first optical shutter located on a surface of the first beam splitter, and a second optical shutter located on a surface of the second beam splitter.

    METHOD AND SYSTEM FOR SIMULTANEOUS RECORDING OF SUPERIMPOSED HOLOGRAPHIC GRATINGS FOR AUGMENTED REALITY DEVICES (VARIANTS)

    公开(公告)号:US20230032936A1

    公开(公告)日:2023-02-02

    申请号:US17748529

    申请日:2022-05-19

    Abstract: A method and systems for simultaneous recording of superimposed holographic gratings for augmented reality devices are provided. The method includes: generating a beam by a single light source, directing the beam to a decoherence unit at a predetermined angle, forming at least two recording beams by the decoherence unit by splitting the beam, forming at least two recording channels in the decoherence unit to transmit the at least two recording beams and output them from the decoherence unit, output angles of each of the at least two recording beams being different, the at least two recording beams being non-interfering when leaving the decoherence unit, which is provided in accordance with at least one of: output times, spatial positions, polarization states, or spectral compositions of each of the at least two recording beams, illuminating a recording material layer and one master diffractive optical element/master holographic optical element (master DOE/HOE) comprising at least one preliminary formed diffraction/holographic grating by the at least two non-interfering recording beams, simultaneously forming at least two superimposed holographic gratings from the master DOE/HOE on or in the recording material layer, the formed superimposed holographic gratings having a same surface period, but a different spatial period.

    COMPOUND LENS AND DISPLAY DEVICE HAVING THE SAME

    公开(公告)号:US20190025475A1

    公开(公告)日:2019-01-24

    申请号:US16069397

    申请日:2017-01-09

    Abstract: Provided are a compound lens and a display device including the same. The compound lens may improve image quality by providing a higher resolution in a central image region and a lower resolution in a peripheral image region. The compound lens includes a central lens portion and at least one peripheral lens portion, the at least one peripheral lens portion surrounds the central lens portion, the central lens portion has a first focal length, the at least one peripheral lens portion has a second focal length, and the first focal length is greater than the second focal length.

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