Head-mounted device for displaying projected images

A system, comprising:

• a projection device configured to project one or more images onto a receiver surface;
• a viewing device configured to be worn by a user and comprising a frame holding a screen and a focusing lens, wherein:
• the screen comprises the receiver surface and a viewing surface disposed opposite the receiver surface, and the screen is configured to permit transmission of the projected one or more images through the screen from the receiver surface to the viewing surface such that the projected one or more images are viewable on the viewing surface;
• and
• the focusing lens is configured to focus the projected one or more images viewable on the viewing surface for the user when wearing the viewing device;
• and
• a tracking system configured to determine a location and orientation of the receiver surface of the viewing device, wherein the projection device is configured to adjust image properties of the projected one or more images based at least in part on the determined location and orientation of the receiver surface.