Head mounted display early designs.

After doing some research designing and developing a custom head mounted display begun. In order to accomplish this objective  required extensive knowledge in multiple disciplines ranging from optics , display technology, mechanical engineering and industrial design. Previously the military did extensive research on head mounted displays. To begin I referred to Head set design book written below:

Other reference:

http://projects.ict.usc.edu/mxr/diy/

http://www.mtbs3d.com/phpbb/viewforum.php?f=137&sid=dc19482eeb788e0338cfb6273f345c3e