A wearable battery-pack accessory may include (1) one or more curved batteries, (2) charging circuitry that charges the one or more curved batteries, (3) supplying circuitry that supplies power to a connected external computing device, and (4) an outer housing including a curved surface shaped to conform to a portion of a wearer's body. A head-mounted display system may include (1) a head-mounted display, (2) a strap that is coupled to the head-mounted display and wraps around the back of a user's head when the user is wearing the head-mounted display, and (3) a battery-pack accessory detachably coupled to the strap. Various other apparatus, systems, and methods are also disclosed.

A virtual reality (VR) or augmented reality (AR) system includes: a display configured to display a user interface to a user; an integrated scrollwheel and fingerprint sensor (FPS) user input apparatus, comprising a scrollwheel configured to detect a rotational navigation input from the user and an FPS configured to detect a biometric input from the user; and a processing system configured to: receive the rotational navigation input via the scrollwheel of the integrated scrollwheel and FPS user input apparatus; update a displayed user interface on the display based on the received rotational navigation input, wherein updating the displayed user interface comprises updating a user selection on a displayed menu; receive an activation input for the updated user selection on the displayed menu via the FPS of the integrated scrollwheel and FPS user input apparatus; and execute an operation corresponding to the updated user selection on the displayed menu.

A wearable display device is disclosed and includes a main body and a driving module. The main body includes a frame, two temple arms and at least one monitor. The two temple arms are respectively connected with two ends of the frame, and the monitor is disposed on the frame. The driving module is disposed within the frame and includes a microprocessor, an optical display module and a heat dissipation component. The optical display module is electrically coupled with the microprocessor and configured for displaying an optical image on the at least one monitor. The heat dissipation component includes a heat dissipation base and two heat pipes. The two heat pipes are disposed on the heat dissipation base adjacent to the microprocessor. When the heat generated by the microprocessor is conducted to the heat dissipation base, the two heat pipes perform heat exchange with the heat dissipation base.

A beam splitterreflects a portion of light emitted from a first image projector in a first direction while allowing another portion of the light to transmit in a second direction. A first retroreflectorretroreflects the light reflected in the first direction toward the beam splitter. A second retroreflectorretroreflects the light transmitted in the second direction toward the beam splitter. The beam splitterallows the light retroreflected by the first retroreflectorto transmit toward an imaging opticswhile reflecting the light retroreflected by the second retroreflectortoward the imaging optics.

An opto-electronic device (100) is disclosed. The opto-electronic device (100) comprises at least one sensor (106) configured to obtain head orientation data including information on an orientation of a user's head, a processing unit (112) configured to process the head orientation data so as to obtain self motion data including information on the user's self motion and to provide at least one visual cue (114) based on the obtained self motion data, and a display device (120) configured to display the at least one visual cue (114) at a dis-play (102) at least in a periphery of a visual field of the user. Further, a method for providing visual orientation is disclosed.

A head mounted display device and a head mounted display assembly are disclosed in some embodiments of the present disclosure. The head mounted display device comprises a display body and a sound transmission member. The display body is configured to display an image. The sound transmission member is connected to the display body, and is provided with a sound amplification cavity, a mounting groove communicated with the sound amplification cavity and a sound outlet hole. The mounting groove is configured to accommodate an earphone. The technical solution of the present disclosure can further reduce sound leakage and reduce noise interference to the surrounding environment.

Devices are described for high accuracy displacement of tools. In particular, embodiments provide a device for adjusting a position of a tool. The device includes a threaded shaft having a first end and a second end and a shaft axis extending from the first end to the second end, a motor that actuates the threaded shaft to move in a direction of the shaft axis. In some examples, the motor is operatively coupled to the threaded shaft. The device includes a carriage coupled to the camera, and a bearing assembly coupled to the threaded shaft and the carriage. In some examples, the bearing assembly permits a movement of the carriage with respect to the threaded shaft. The movement of the carriage allows the position of the camera to be adjusted.

There is provided a head-mounted display comprising an image generator that generates an image, a pair of optical plates to be arranged in front of both eyes of an observer who observes the image, the pair of optical plates causing the image to be displayed, a first frame that holds the pair of optical plates, and a second frame including a to-be-fixed part, in which a fixing part to which the to-be-fixed part is fixed is provided at the central part of the first frame in the horizontal direction.

A virtual reality (VR) headset wearable by a computer game player includes integrated thermal and/or motion sensors on the exterior of the VR headset to detect the presence of others in immediate proximity to the player, sending a signal to the player's view screen, warning the player of potential collisions with others.

A mini display device is provided, including: a main body, including an electronic module which includes an arithmetic processing unit, a storage unit and a power source electrically connected to the arithmetic processing unit, a mini display piece which includes at least one application software and a mini lens module which is disposed on the mini display piece, the arithmetic processing unit being communicatively connected to the storage unit and executing the at least one application software, the mini display piece being communicatively connected to the electronic module, the mini lens module including a shell which is hollow, a barrel and a lens, an end of the barrel being in communication with and end of the shell, the lens being disposed on another end of the barrel, another end of the shell facing toward the mini display piece.