Abstract: A head-mount display (HMD) and variations thereof are described. An HMD may include a mobile device having a display unit, a camera, a light source and a processing unit that controls operations of the display unit, camera and light source. The processing unit receives data associated with one or more optical images captured by the camera, and renders a visual image displayable by the display unit. The HMD may also include an eyewear piece having a holder, one or more lenses and a reflective unit. The holder is wearable by a user and holds the mobile device in front of eyes of the user. The user can view the display unit through the one or more lenses. The reflective unit reflects an image of at least an eye of the user. The camera is oriented to capture the reflected image of the eye through the reflective unit.

Abstract: A head-mounted display (HMD) may include a mobile device that includes a display unit, at least one sensing unit and a processing unit. The at least one sensing unit may be configured to detect a presence of an object. The processing unit may be configured to receive data associated with the detecting from the at least one sensing unit, and determine one or more of a position, an orientation and a motion of the object based at least in part on the received data. The HMD may also include an eyewear piece that includes a holder and a field of view (FOV) enhancement unit. The holder may be wearable by a user on a forehead thereof to hold the mobile device in front of eyes of the user. The FOV enhancement unit may be configured to enlarge or redirect a FOV of the at least one sensing unit.

Abstract: A head-mount display (HMD) and variations thereof are described. An HMD may include a mobile device having a display unit, a camera, a light source and a processing unit that controls operations of the display unit, camera and light source. The processing unit receives data associated with one or more optical images captured by the camera, and renders a visual image displayable by the display unit. The HMD may also include an eyewear piece having a holder, one or more lenses and a reflective unit. The holder is wearable by a user and holds the mobile device in front of eyes of the user. The user can view the display unit through the one or more lenses. The reflective unit reflects an image of at least an eye of the user. The camera is oriented to capture the reflected image of the eye through the reflective unit.