利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.015 秒)

    Dynamic control of optical axis location in head-mounted displays
    3.
    发明授权
    Dynamic control of optical axis location in head-mounted displays 有权

    公开(公告)号：US10345600B1

    公开(公告)日：2019-07-09

    申请号：US15970292

    申请日：2018-05-03

    申请人： Facebook Technologies, LLC

    发明人： Wanli Chi ,  Pasi Saarikko ,  Lu Lu ,  Kevin James MacKenzie ,  Yijing Fu

    IPC分类号： G02B27/01 ,  G02B27/00 ,  G06F3/01 ,  G02F1/01

    摘要： A head-mounted display (HMD) presented herein comprises an electronic display, an optical assembly with a dynamic optical axis component (DOAC), an eye tracker and a controller. The electronic display is configured to emit image light. The eye tracker is configured to determine a gaze vector of a user wearing the HMD. The DOAC is positioned in front of the electronic display and refracts the image light received from the electronic display. The controller provides emission instructions to the DOAC to dynamically move an optical axis of the DOAC to align the optical axis with the determined gaze vector. The optical assembly directs the image light refracted by the DOAC to an eye box of the HMD corresponding to a location of an eye of the user. An optical error associated with the refracted image light directed to the eye box is reduced.

    Focus adjusting multiplanar head mounted display
    6.
    发明授权
    Focus adjusting multiplanar head mounted display 有权

    公开(公告)号：US10983354B2

    公开(公告)日：2021-04-20

    申请号：US16736712

    申请日：2020-01-07

    申请人： Facebook Technologies, LLC

    发明人： Douglas Robert Lanman ,  William Aaron Nicholls ,  Marina Zannoli ,  Kevin James MacKenzie ,  James Hillis ,  Yusufu Njoni Bamaxam Sulai ,  Olivier Mercier

    IPC分类号： G06F3/01 ,  G02B27/01 ,  G02B7/04

    摘要： A multiplanar head mounted display (HMD) includes two or more artificial display planes for each eye located at optical distances that can be dynamically adjusted based on a location within a scene presented by the HMD that the user views. For example, a scene is presented on two or more electronic display elements (e.g., screens) of the HMD. A focal length of an optics block that directs image light from the electronic display elements towards the eyes of a user is adjusted using a varifocal system (e.g., an element that mechanically changes a distance between a lens system in the optics block and the electronic display element, an element that changes shape of one or more lenses in the lens system in the optics block, etc.) based on a location or object within the scene where the user is looking.

    Wavefront sensing in a head mounted display
    7.
    发明授权
    Wavefront sensing in a head mounted display 有权

    公开(公告)号：US10656707B1

    公开(公告)日：2020-05-19

    申请号：US15950017

    申请日：2018-04-10

    申请人： Facebook Technologies, LLC

    发明人： Robin Sharma ,  Marina Zannoli ,  Kevin James MacKenzie

    IPC分类号： G06F3/01 ,  G02B27/01 ,  G02B5/04

    摘要： A head mounted display (HMD) includes an eye sensor, an optics block, and a display. The eye sensor includes a detector and a tunable lens. The tunable lens has a micro-lens state (e.g., acts as a micro-lens array) and a neutral state. In the micro-lens state the eye sensor acts as an accommodation sensor, and in the neutral state the eye sensor acts as an eye tracking sensor. The eye sensor can alternate functioning as an eye tracking or an accommodation sensor by adjusting the state of the tunable lens. In alternate embodiments, the accommodation sensor is separate from the eye tracker and a beam splitter is used to split the reflected light toward the two sensors.