Vuzix Tac-Eye LT head-up display

The Vuzix Tac-Eye is sold as a rugged HUD for the military. It has 800x600 pixel resolution, weighs 51 g without eyeglasses or the control box, and has a 30-degree field of view. It requires less than 1 W when hooked to a VGA source and has a relatively small control box, making it attractive for many applications.
$3000