"The main objective was to be used with a remote controlled closed circuit video system for remotely viewing dangerous situations. In fact, their system used a head mounted display to monitor conditions in another room, using magnetic tracking to monitor the user’s head movements. The HMD was used for remotely viewing dangerous situations. These devices were later used by the military for training operations."
Philco Headsight (1961)." The VR Shop. December 21, 2021.