According to various example embodiments, a wearable electronic device may include: a lens frame; a housing; a translational bracket having a translational bracket main hole; an input screw penetrating through an outer wall of the housing; a rotating bracket having a rotating bracket main hole communicating with the translational bracket main hole and a rotating bracket auxiliary hole spaced apart from the rotating bracket main hole and rotatably connected to the housing; a connecting shaft passing through the translational bracket main hole and the rotating bracket main hole configured to rotate the rotating bracket while moving together with the translational bracket main hole; a cam having a cam hole communicating with the rotating bracket auxiliary hole and rotatably connected to the rotating bracket; a shield capable of hanging on the rotating bracket; and a leg connected to the shield.

Techniques related to reclamation of energy leaking from waveguides are disclosed. One or more photovoltaic cells may receive light leaking from a waveguide at a first surface of the wave guide. The first surface may be opposite to a second surface at which an in-coupling element is located. The light leaking from the waveguide results from inefficiency in redirecting incoming light for propagation within the waveguide. The one or more photovoltaic cells may generate electric power from the light leaking from the waveguide.

Aspects of the present disclosure relate to modular expansion systems for use in head-worn computing systems. In an head-worn computer, an electrical connector is adapted to electrically connect with a modular expansion module, wherein the modular expansion module adds a capability to the head-worn computer and is removeably mounted to the head-worn computer, and a mount is adapted to physically secure the modular expansion module to the head-worn computer.

An optical module includes an image element, a projection lens, a prism mirror, a wedge type optical element, a barrel configured to support the prism mirror and the wedge type optical element, a first combiner configured to deflect image light emitted from the wedge type optical element, a first dust proof member configured to cover a both end region of the projection lens, the prism mirror, and the barrel in a third axis, and cover an end region of the projection lens and the prism mirror located on the prism mirror side in a second axis, and a second dust proof member provided between the projection lens and the barrel.

A wearable device for augmented media content experiences can be formed with a mountable physical structure that has removably mountable positions and component devices that are removably mounted through the removably mountable positions. The component devices can be specifically selected based on a specific type of content consumption environment in which the wearable device is to operate. The mountable physical structure may be subject to a device washing process to which the component devices are not subject to, after the wearable device including the mountable physical structure and the component devices is used by a viewer in a content consumption session in the specific type of content consumption environment, so long as the component devices are subsequently removed from the mountable physical structure.

An optical module includes a lens barrel main housing, at least one dimming lens installed in the lens barrel main housing, a first cover assembly and a second cover assembly. Opposite ends of the lens barrel main housing are provided with a first opening and a second opening. The inner circumferential wall of the lens barrel main housing is provided with at least one limiting portion. Each dimming lens abuts against a limiting portion in the preset direction. The first cover assembly is arranged on the first opening and includes a light source configured to emit image beams to the at least one dimming lens. The second cover assembly is arranged on the second opening and includes a transparent component being capable of transmitting the image beams passing through the at least one dimming lens to an outside of the lens barrel main housing.

A head mounted display device and a positioning device thereof are provided. The positioning device includes a first sensor, a second sensor, a third sensor, a first hinge sensor, and a controller. The first sensor and the second sensor have a fixed relative location. The third sensor is disposed on a first flexible member of the head mounted display device. The first hinge sensor is disposed on a first connecting portion configured to connect a main body portion and the first flexible member, wherein the first hinge sensor is configured to sense a first movement state of the first flexible member. The controller is configured to calculate a first relative location information of the first sensor, the second sensor, and the third sensor, and to calibrate the first relative location information according to the first movement state.

In one example, an apparatus may include a frame that includes an optical component configured for use with a near-eye display that is part of a head-worn display system. The frame magnetically attaches to the head-worn display system, and when the frame is attached to the head-worn display system, the frame may align the optical component for use with the near-eye display. Various other methods, systems, and computer-readable media are also disclosed.

An over-glasses apparatus, configured to be associated with a pair of glasses worn by a user, is disclosed. The apparatus includes a support structure, an eye tracking system, an image sensor, an actuation system of the image sensor, a camera housing, and means for processing and control. Advantageously, the image sensor and the actuation system of the image sensor are within the camera housing, arranged substantially in correspondence with a longitudinally median part of the main body, so that the camera housing intercepts an axis that connects the user's pupils.

An optical assembly comprises a light source, a light-modulation element for modulating light from the light source, and a terminal optical element for directing modulated light from the optical assembly. Optical elements are provided to guide the light in a first path from the light source to the light-modulation element and to guide the modulated light in a second path from the light-modulation element to the terminal optical element. The first and second paths are of similar shape, for example a c-shape, and are arranged in a nested configuration.