US Patent 10228727 Adjustable front assembly in head-mounted display

Embodiments relate to adjustable arms in a head-mounted display. Each adjustable arm includes three separate links that are configured to allow a user to move a front end assembly in numerous ways in order to promote eye relief. Each adjustable arm is composed of a front end assembly link, an interlink, and a back end assembly link. These three links connect to each other in a rotatable manner, allowing a user to adjust the front end assembly into a position that provides the greatest degree of eye relief.