Abstract: A display apparatus including at least one light source per eye; at least one controllable scanning mirror per eye; means for detecting gaze direction of user; and a processor communicably coupled to the aforementioned components. The processor is configured to (a) obtain an input image and determine region of visual accuracy thereof; (b) generate pixel data corresponding to at least a first region and a second region of the input image, wherein the second region substantially corresponds to the region of visual accuracy of the input image, while the first region substantially corresponds to a remaining region of the input image, wherein the first region have a first resolution, while the second region have a second resolution, the second resolution being higher than the first resolution; and (c) control the at least one light source and the at least one controllable scanning mirror to draw the aforementioned regions.

Abstract: A display apparatus, and a method of displaying via the display apparatus. The display apparatus includes at least one context image renderer for rendering a context image, at least one focus image renderer for rendering a focus image, at least one first optical combiner for combining the projection of the rendered context image with the projection of the rendered focus image to form a combined projection, and at least one second optical combiner for combining the combined projection with a projection of a real world image. An angular width of a projection of the rendered context image ranges from 40 degrees to 220 degrees. An angular width of a projection of the rendered focus image ranges from 5 degrees to 60 degrees.

Abstract: A gaze-tracking system for use in a head-mounted display apparatus. The gaze-tracking system includes at least one illuminator for emitting light pulses; at least one first optical element comprising a plurality of micro-to-nano-sized components, shaped and arranged relative to each other in a manner that, when incident thereupon, a structure of the light pulses is modified to produce structured light, wherein the produced structured light is used to illuminate a user's eye; at least one camera for capturing an image of reflections of the structured light from the user's eye, wherein the image is representative of a form and a position of the reflections on an image plane of the at least one camera; and a processor configured to control the at least one illuminator and the at least one camera, and to process the captured image to detect a gaze direction of the user.

Abstract: A gaze-tracking system for use in a head-mounted display apparatus, and a method of tracking a user's gaze, via such a gaze-tracking system. The gaze-tracking system includes a plurality of illuminators for emitting light pulses to illuminate a user's eye when the head-mounted display apparatus is worn by the user, the illuminators including at least a first illuminator and a second illuminator; at least one lens positioned on an optical path of reflections of the light pulses from the user's eye, the at least one lens having no chromatic-aberration correction; at least one camera for capturing an image of the reflections of the light pulses; and a processor coupled with illuminators and the at least one camera, the processor being configured to control operations of the illuminators and the at least one camera, and to process the captured image to detect a gaze direction of the user.

Abstract: A display apparatus and a method of displaying, via the display apparatus. The display apparatus includes an image source for rendering an image, a projection screen facing a direction at a predefined angle to a direction in which the rendered image is projected from the image source, an exit optical element facing the projection screen, a first polarizing element facing the image source and arranged to polarize a projection of the rendered image at a first polarization orientation, a first optical element arranged to reflect the polarized projection towards the projection screen, wherein the projection screen is arranged to unpolarize the polarized projection whilst reflecting the unpolarized projection towards the exit optical element, and a second polarizing element positioned between the projection screen and the exit optical element, arranged to polarize the unpolarized projection at a second polarization orientation.

Abstract: A display apparatus and method of displaying, via the display apparatus. The display apparatus includes at least one image renderer for rendering an image; an exit optical element through which a projection of the rendered image exits the display apparatus to be incident upon a user's eye, when the display apparatus is head-mounted by the user; means for providing visual cues, the visual cues being provided in a peripheral region, the peripheral region substantially surrounding a viewport of the exit optical element; and a processor coupled to the at least one image renderer and the means for providing the visual cues, wherein the processor generates a drive signal based at least partially upon a region of the rendered image that is not visible in the viewport of the exit optical element, and to control, via the drive signal, the means for providing the visual cues.

Abstract: A gaze-tracking system for use in a head-mounted display apparatus. The gaze-tracking system includes at least one illuminator to emit light pulses for illuminating a user's eye; at least one camera to capture image of reflections of the light pulses; at least one reflective element arranged on an optical path of the reflections of the light pulses, such that when incident upon the at least one reflective element, the reflections of the light pulses are reflected towards the at least one camera; at least one actuator associated with the at least one reflective element, wherein the at least one actuator moves the at least one reflective element; and a processor configured to: process the at least one image to detect a gaze direction of user; and control the at least one actuator to adjust, based upon the detected gaze direction, position of the at least one reflective element.

Abstract: A gaze-tracking system for use in a head-mounted display apparatus, and a method of tracking a user's gaze, via such a gaze-tracking system. The gaze-tracking system includes illuminators for emitting light pulses to illuminate a user's eye; a camera for capturing an image of reflections of the light pulses from the user's eye, the camera including photo-sensitive elements arranged into a chip, wherein a first surface of the chip bulges inwards in a substantially-curved shape, such that a focal plane of photo-sensitive elements positioned proximally to edges of the chip is farther away than a focal plane of photo-sensitive elements positioned substantially at a center portion of the chip, the first surface facing the user's eye; and a processor being configured to control operations of the illuminators and the camera, and to process the captured image to detect a gaze direction of the user.

Abstract: A gaze-tracking system for a head-mounted display apparatus includes a first set of illuminators for emitting light to illuminate a user's eye; at least one photo sensor for sensing reflections of the light from the user's eye; at least one actuator for moving at least one of: (i) the first set of illuminators, (ii) the at least one photo sensor; and a processor coupled with the first set of illuminators, the at least one photo sensor and the at least one actuator. The processor is configured to collect and process sensor data from the at least one photo sensor to detect a gaze direction of the user, and to control the at least one actuator to adjust, based upon the detected gaze direction, a position of the at least one of: (i) the first set of illuminators, (ii) the at least one photo sensor.