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    Pupil matched occlusion-capable optical see-through head-mounted display
    1.
    发明授权
    Pupil matched occlusion-capable optical see-through head-mounted display 有权

    公开(公告)号：US11885968B2

    公开(公告)日：2024-01-30

    申请号：US17642623

    申请日：2020-09-14

    申请人： Arizona Board of Regents on Behalf of the University of Arizona

    发明人： Hong Hua ,  Austin Wilson

    IPC分类号： G02B27/01 ,  G02B13/22 ,  G02B27/00 ,  G02B27/10 ,  G06T19/00

    CPC分类号： G02B27/0172 ,  G02B13/22 ,  G02B27/0093 ,  G02B27/1026 ,  G06T19/006 ,  G02B2027/0138

    摘要： Compact occlusion-capable optical see-through head mounted displays (OCOST-HMDs) are described having a double-wrapped path and capable of rendering per-pixel mutual occlusion, and correct see-through viewing perspective or a pupil-matched viewing between the virtual and real views. An example device includes a polarizer, a polarizing beam splitter, an objective lens, a spatial light modulator (SLM), an eyepiece lens, a quarter wave plate, and a reflective optical element configured to reflect the light that is incident thereupon in a first direction, and to transit the light received from a microdisplay that is incident thereupon from a second direction. The components form a first double-pass configurations that allow the light that passes through the objective to reflect from the SLM and propagate again through the objective, and a second double-pass configuration that allows the light that passes through the eyepiece to reflect from the reflective optical element and propagate again through the eyepiece.

    Wide angle and high resolution tiled head-mounted display device
    4.
    发明授权
    Wide angle and high resolution tiled head-mounted display device 有权

    公开(公告)号：US10809533B2

    公开(公告)日：2020-10-20

    申请号：US16366204

    申请日：2019-03-27

    申请人： Arizona Board of Regents on behalf of the University of Arizona ,  BEIJING INSTITUTE OF TECHNOLOGY

    发明人： Dewen Cheng ,  Yongtian Wang ,  Hong Hua

    IPC分类号： G09G5/00 ,  G02B27/01 ,  G02B5/04

    摘要： A tiled head-mounted display device, comprising: an optical component including a plurality of prisms with free-form surfaces, each prism being a wedge prism comprising a first optical surface, a second optical surface and a third optical surface; and a display component including a plurality of micro-displays, wherein the number of the micro-displays and the number of the prisms with free-form surfaces is identical. The tiled head-mounted display device according to the present invention is compact and light, provides wide field of view and high resolution, especially for the optical tiling head-mounted display device, the exit pupil planes of each display channels are coincident, thus avoiding pupil aberration and keeping exit pupil diameter and eye clearance same as the single ocular. There is no resolution variance throughout the entire field of view, thus preventing extra trapezoid distortion. The tiled head-mounted display device according to the present invention can be readily applicable to augmented environments applications by simply adding an auxiliary free-form lens behind the free-form prism.