An augmented reality system (2) is disclosed for use in bright external conditions. The augmented reality system includes: a projector (6), a substantially transparent optical component (4) that provides augmented reality light to a user, and a stray light rejection layer (12). The stray light rejection layer (12) further comprises a plurality of slats (16) arranged at a plurality of respective angles to effectively reduce high angle incident light from the external environment from reaching the transparent optical component (4).

An augmented reality display device includes a near-eye display configured to present imagery to a user eye. A camera is configured to capture light from a real-world environment and produce output useable to contribute to the imagery presented to the user eye via the near-eye display. The camera includes an aperture configured to receive the light from the real-world environment and an image sensor configured to respond to the light received from the real-world environment by generating sensor output signals useable to produce images on the near-eye display depicting the real-world environment. One or more optical elements provide an optical path for light from the aperture to the image sensor, the optical path having a length that is within a threshold of a distance between the user eye and the aperture of the camera.

A system and method of calibrating a head-mounted display (HMD) by positioning an optical combiner of the HMD into a holder of a calibration station such that the optical combiner is in a primary optical path of light provided from a micro-display of the HMD and a camera of the calibration station, adjusting a tunable correction unit to correct defocus caused by a corrective prescription of the optical combiner, capturing images of a reference target by the camera as viewed through the tunable correction unit and optical combiner, and generating a distortion model from the captured images and calibrating the HMD in order to apply the distortion model to images projected by the HMD.

Aspects of the present disclosure relate to optical systems with ergonomic presentation of content for use in head-worn computing systems. A method for controlling a head-worn computer when viewing virtual images, including image content, that encourages an ergonomic head position to reduce neck pain, includes determining an angle of the head-worn computer relative to horizontal, determining an angle of a line of sight to the center of the virtual image as presented to a user's eye, determining a deviation between the determined angle of the line of sight and a predetermined ergonomic angle, and shifting the image content of the virtual image vertically as displayed to the user's eye so that a portion of the image content is not viewable, wherein the amount of shifting is in reverse correspondence to the magnitude of the determined deviation.

A display device includes a display configured to display a video, a concave mirror configured to reflect a video display light of the video displayed on the display toward a reflection part that is formed in a curved shape and that faces a viewer, and a housing in which the display and the concave mirror are assembled, wherein an angle of the concave mirror with respect to the housing is adjustable by rotating the concave mirror on a reference plane of the housing in accordance with a relative positional relationship among the housing, the reflection part, and the viewer.

A mirror body, a mirror array, and a method of producing a mirror and a mirror array are provided. The mirror body can be formed of a rigid foam and has a front surface with a shape adapted to reflect light that originates in a projector of a simulator. A block of the rigid foam may be machined to form the mirror body. A reflective material is positioned over the front surface to reflect light from the projector. In embodiments, the reflective material is a sheet of a metalized film. In embodiments, the reflective material is applied to the front surface in a first state and subsequently changes to a second state. The mirror array may be formed of two or more mirror bodies. In embodiments, a seam between adjacent mirror bodies is covered with the reflective material.

Embodiments include a head-worn display including a display panel sized and positioned to produce a field of view to present digital content to an eye of a user, and a processor adapted to present the digital content to the display panel such that the digital content is only presented in a portion of the field of view, the portion being in the middle of the field of view such that horizontally opposing edges of the field of view are blank areas. The processor is adapted to shift the digital content into one of the blank areas to adjust the convergence distance of the digital content and thereby change the perceived distance from the user to the digital content.

An electronic device is disclosed. The electronic device of the present disclosure includes a light emitting unit for providing image light, and a display unit for reflecting the image light and transmitting the reflected image light to eyes of a user. The display unit includes a lens unit and a reflective surface for reflecting the image light. The reflective surface is formed of a 3-dimensional curved surface having different curvatures in a first direction and in a second direction perpendicular to the first direction, thereby correcting astigmatism. An electronic device according to the present invention may be associated with an artificial intelligence module, robot, augmented reality (AR) device, virtual reality (VR) device, and device related to 5G services.

There is provided a head mounted display including: an optical system comprising: right-eye and left-eye optical systems that guide a real image light and right-eye and left-eye virtual image lights; and an optical element comprising: first polarization plates disposed at emission sides of the right-eye and left-eye optical systems; wherein the right-eye virtual image light from the right-eye optical system and the left-eye virtual image light from the left-eye optical system are blocked by the first polarization plate at the emission side of the left-eye optical system and by that of the right-eye optical system respectively; and at least one of: first wave plates disposed at the emission sides of the right-eye and left-eye optical systems so that the real image light from the right-eye and left-eye optical systems passes therethrough; and second wave plates disposed at incident sides of the right-eye and left-eye optical systems.

An optical system includes a picture generation unit configured to output an optical image, a correcting optical element, and a combiner. The shape of the combiner and the shape of the correcting optical element are correlated such that the optical system can produce augmented reality at relatively long distances (e.g., 1.5 meters or more). The correcting optical element includes a convex reflective surface configured to reflect the optical image output by the picture generation unit. The combiner has a concave reflective surface and a convex transparent surface. The concave reflective surface of the combiner is configured to reflect the optical image reflected by the correcting optical element toward an eye box, which represents an eye pupil of the observer. The convex transparent surface of the combiner is configured to permit external light to pass through the combiner and combine with the optical image reflected by the correcting optical element.