Various devices, arrangements and methods for managing communications using a head mounted display device are described. In one aspect, tracking data is generated at least in part by one or more sensors in a head mounted display (HMD) device. The tracking data indicates one or more facial movements of a user wearing the HMD device. A patch image is obtained based on the tracking data. The patch image is merged with a facial image. Various embodiments relate to the HMD device and other methods for generating and using the patch and facial images.

A head mount display (HMD) includes: an image unit; a lens unit; and a housing including a first surface arranged on the front side, a second surface extending rearward from an upper side of the first surface, and a third surface extending rearward from a lower side of the first surface. The HMD further includes a half mirror provided on the left side of the housing and on the left side relative to the lens unit and deflecting, rearward, image light led by the lens unit; an operating member provided on the left side relative to the center in right and left directions of the housing within the first surface and rotating about an axis extending in frontward and rearward directions; and an adjustment mechanism connected to at least one of the image unit and the lens unit and moving the unit(s) according to rotation of the operating member.

According to one embodiment, a display includes a projector, a first optical unit, and a second optical unit. The projector emits a first light including image information. The first optical unit transmits at least a portion of a second light. The second optical unit reflects at least a portion of the first light and transmits at least a portion of the second light. A light reflectance of the first optical unit is lower than a light reflectance of the second optical unit, and a light absorptance of the first optical unit is higher than a light absorptance of the second optical unit.

A head mount display includes a display unit, a power source unit, a holding unit, and an adopter. The display unit displays a screen in a visibility direction of a user using the head mount display. The power source unit drives the display unit and includes a circuit board and a battery. The holding unit connects the display unit and the power source unit. The display is mounted on the head or a helmet of the user by the adopter. In the head mount display, the battery and the circuit board of the power source unit are disposed across a ventilation unit, and the ventilation unit is formed in an overhead direction of the user.

A head-mounted device may have head-mounted support structures configured to be worn on a head of a user. The head-mounted device may have stereo optical components such as left and right cameras or left and right display systems. The optical components may have respective left and right pointing vectors. Deformation of the support structures may cause the camera pointing vectors and/or the display system pointing vectors to become misaligned. Sensor circuitry such as strain gauge circuitry may measure pointing vector misalignment. Control circuitry may control the cameras and/or the display systems to compensate for measured changes in pointing vector misalignment.

A head-mounted display device is provided, which relates to a field of display device technology. The device includes: a display unit used to display a picture; a connection unit used to position the display unit in front of at least one eye of a user after the head-mounted display device is worn on a head of the user; a rotating shaft unit includes at least a first segment, a second segment, and a first adjusting member connecting the first segment and the second segment, where the first segment is connected to the connection unit, and the first adjusting member is used to change a relative position of the first segment and the second segment when the first adjusting member is subjected to an external force, so that the second segment drives the display unit to move to achieve a pupil distance adjustment.

A display image is superimposed and displayed on an outside image in a preferred manner. An optical system superimposes a display image displayed on a display device onto an outside image, and leads the display image to an eye of an observer. A display control unit controls the display size and the display position of the display image on the display device so that the display image is displayed in an image superimposition region (a flat region) detected from the outside image. For example, the display control unit controls the display state of the display image in accordance with the state of the image superimposition region in the outside image. Also, the display control unit performs control to selectively display the display image in a line-of-sight region or outside the line-of-sight region in accordance with the line of sight of the observer.

Methods, systems, apparatuses, and computer-readable media are provided for enabling collaboration between writers. In one implementation, the computer-readable medium includes instructions to cause a processor to receive, from an image sensor associated with a wearable extended reality appliance, image data representing a physical surface, the physical surface being a compilation of pages; receive, from a computing device associated with a virtual writer, annotation data representing first virtual markings associated with a first page of the compilation and second virtual markings associated with a second page of the compilation; analyze the image data to determine that the compilation is opened to the first page; and cause the wearable extended reality appliance to overlay the first virtual markings on the first page of the compilation and exclude overlaying the second virtual markings on the first page of the compilation.

An apparatus and method for measuring a swimmer's speed and conveying the speed to the swimmer in real time includes a plurality of ultrasonic beacons each having a transducer configured to emit ultrasonic signals in a pool or other body of water within which the swimmer is swimming. A wearable, waterproof, ultrasonic receiver worn by the swimmer, receives the ultrasonic signals and generates corresponding signal data. The receiver's microcontroller captures and uses the signal data to calculate the swimmer's position and speed in real time, and conveys this information to a wearable, waterproof, user interface device worn by the swimmer, the user interface device including a near-eye display disposed on the swimmer's googles.

A head mount display includes a frame attached to a head of an observer, an image display unit that displays an image to be visually recognized by the observer, a fixing part that fixes the image display unit to the frame, an detection part that detects a signal according to a relative attitude of the image display unit with respect to the frame, and a control part that controls the image displayed by the image display unit based on the output signal of the detection part.