Eye strain reduction in head mountable display

A method for manufacturing a device, the method comprising:

• providing a facial interface bracket configured to engage a user;
• coupling an extender bracket to a head display device and the facial interface bracket;
• coupling an actuating mechanism to at least one of the facial interface bracket and the extender bracket, wherein the actuating mechanism defines a spatial distance between a surface of the facial interface bracket and a surface of the extender bracket;
• adjusting the actuating mechanism to set the desired distance between the facial interface bracket and the extender bracket;
• and
• securing the actuating mechanism to maintain the set distance between the facial interface bracket and the extender bracket.

A device comprising:

• a facial interface bracket configured to engage a user;
• an extender bracket coupled to a head display device and the facial interface bracket;
• and
• an actuating mechanism coupled to at least one of the facial interface bracket and the extender bracket;
• wherein the actuating mechanism defines a spatial distance between a surface of the facial interface bracket and a surface of the extender bracket;
• wherein the actuating mechanism comprises a plug-and-groove interface, a slider, and a cantilever;
• wherein the cantilever is actuated by pressing a button;
• and
• wherein the cantilever flexes along a portion coupled to the surface of the extender bracket when the button is pressed.