公开(公告)号：US10197805B2

公开(公告)日：2019-02-05

申请号：US15145583

申请日：2016-05-03

Applicant: North Inc.

Inventor： Matthew Bailey ,  Stefan Alexander ,  Vance R. Morrison ,  Thomas Mahon ,  Lloyd Frederick Holland ,  Jaehong Choi

IPC: G02B5/18 ,  G02B5/32 ,  G03H1/02 ,  G03H1/22 ,  G03H1/26 ,  G02B26/10 ,  G02B27/01

Abstract: Systems, devices, and methods for engineering the eyebox of a display using multiple heterogeneous exit pupils are described. The eyebox of a display includes at least two heterogeneous exit pupils that are different from one another in terms of size and/or shape. Heterogeneous exit pupils may overlap, one may encompass another, or they may be completely spatially-separated from one another. Such configurations enable specific eyebox and/or visual display configurations that can be advantageous in certain applications. An example in which a scanning laser-based wearable heads-up virtual retina display implements a holographic combiner that is engineered to provide multiple heterogeneous exit pupils is described.

公开(公告)号：US10437067B2

公开(公告)日：2019-10-08

申请号：US15837250

申请日：2017-12-11

Applicant: North Inc.

Inventor： Matthew Bailey

IPC: G02B27/01

Abstract: Systems, devices, and methods for preventing eyebox degradation in wearable heads-up displays (“WHUDs”) are described. A WHUD may provide an eyebox defined by multiple spatially-separated exit pupils, where the size of the eyebox is influenced by the spacing between the exit pupils. A larger eyebox is achieved with larger spacing between the exit pupils but a larger spacing between exit pupils is susceptible to the formation of gaps or blind spots in the eyebox (eyebox degradation) if bright environmental light causes the user's pupil to constrict to a size that is smaller than the spacing between the exit pupils. A material of variable chromism is included in the user's field of view to reduce the perceived brightness of environmental light and thereby prevent the user's pupil from constricting to a size smaller than the spacing between the exit pupils.

公开(公告)号：US20190392163A1

公开(公告)日：2019-12-26

申请号：US16450152

申请日：2019-06-24

Applicant: North Inc.

Inventor： Stephen Lake ,  Matthew Bailey ,  Aaron Grant ,  Stefan Alexander

IPC: G06F21/62 ,  G06F3/01 ,  G06K9/00 ,  G09G5/12 ,  G06F3/14 ,  G06F21/60 ,  G06F21/31 ,  H04W12/00 ,  H04W12/08

Abstract: Systems, devices, and methods are disclosed for enabling private communication between head-mounted displays. A first user dons a first head-mounted display. The first head-mounted display authenticates that the first user is authorized to view information displayed by the first head-mounted display. In response to positive authentication, the first head-mounted display displays the information to the first user. The first user inputs a selection command via an input interface, such as, for example, gazing at particular information, to select some of the displayed information. The first head-mounted display generates a message based on the user selection, which may be encrypted by the first head-mounted display prior to transmission. The first head-mounted display transmits the message to a second head-mounted display, such that the second head-mounted display displays the message to an eye of a second user wearing the second head-mounted display.