Certain aspects of a novel weapon sight system combine a direct view, a visible light video view, and an infrared (IR) video view mode. Each of the view modes may be viewed individually or simultaneously with one or more of the other view modes through a single viewing aperture. Further, the one or more view-modes may be provided while providing a bore-sighted reticle superimposed on the selected view. Further, the reticle may be powered separately from the video view electronics enabling use of the reticle regardless of the power status video view electronics.

Disclosure herein concerns a method that includes illuminating a user's eye with an illumination source in a head-worn display, capturing an image of the user's eye with an eye camera in the head-worn display, wherein the image includes an eye glint produced by light from the illumination source that is reflected from a surface of the user's eye, determining a size of an eye glint in the captured image, and identifying a change in focus distance for the user's eye in correspondence with a change in the size of the eye glint.

Various aspects of the subject technology relate to prediction of eye movements of a user of a head-mountable display device. Predictive foveated display systems and methods, using the predicted eye movements are also disclosed. Predictive variable focus display systems and methods using the predicted eye movements are also disclosed. Predicting eye movements may include predicting a future gaze location and/or predicting a future vergence plane for the user's eyes, based on the current motion of one or both of the user's eyes. The predicted gaze location may be used to pre-render a foveated display image frame with a high-resolution region at the predicted gaze location. The predicted vergence plane may be used to modify an image plane of a display assembly to mitigate or avoid a vergence/accommodation conflict for the user.

A head-mounted device may have a head-mounted support structure. Rear-facing displays may present images to eye boxes at the rear of the head-mounted support structure. A forward-facing publicly viewable display may be supported on a front side of the head-mounted support structure facing away from the rear-facing displays. The forward-facing display may have pixels that form an active area in which images are displayed and may have a ring-shaped inactive border area that surrounds the pixels. A cosmetic covering structure such as ring-shaped shroud member may overlap optical components in the inactive border area. The optical components may be received within through-hole openings in the cosmetic covering structure and/or may operate through transparent portions of the cosmetic covering structure.

The disclousre relates to a viewing optic. In one embodiment, the disclosure relates to a display system for a viewing optic. In one embodiment, the disclosure relates to a viewing optic having a display system with multiple active dispalys for generating images that are projected into a first focal plane of an optical system. In one embodimet, the disclosure relates to a viewing optic with an active display and a round counter system.

An apparatus and method are provided for a night vision system including a transparent overlay display that transmit direct-view light representing an intensified image and emits display light representing a display image. To reduce the communication bandwidth with an external controller, a frame buffer is provided to locally update pixel values of the display image, at a first frame rate. Because many pixel values remain unchanged from frame to frame, an external controller may change the pixel values stored in the frame buffer as needed, reducing the amount of information that is needed from the external controller to control the display image. Additionally, to reduce the communication bandwidth the display information may be communicated from the external controller using a high-level language. Further, some of the display information may be determined using a local processor, rather than relying on the external controller for the display information.

An electronic device determines target information about a target and recommends a target based on the target information.

Augmented reality systems and methods for automatically repositioning a virtual object with respect to a destination object in a three-dimensional (3D) environment of a user are disclosed. The systems and methods can automatically attach the target virtual object to the destination object and re-orient the target virtual object based on the affordances of the virtual object or the destination object. The systems and methods can also track the movement of a user and detach the virtual object from the destination object when the user's movement passes a threshold condition.

In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides. The respective FOVs are such that the plurality of waveguides are configured to diffract the visible light within a combined FOV that is continuous and greater than each of the respective FOVs.

A gaze-tracking method and system are disclosed that employs gaze rays generated from measured/tracked eye movements and fixation for interaction with objects and environment within a three-dimensional computing environment. The gaze ray is tracked to provide measures of ocular control, fovea control, and/or associated neural pathways in which the measures can be then used for one or more physiological assessments of the user, including, for example, eye dominance determination, vestibular assessment, visual fixation assessment, optokinetic assessment, smooth pursuit assessment, nystagmus quick phase assessment, saccades assessment, and vergence assessment.