Headwear-mounted periscopic display device

A periscopic display device for close-up viewing of a display, said device comprising:

• means for generating a display;
• unitary periscopic means for viewing a virtual image of the display, said periscopic means comprising a body of optically clear material having a reflecting prism portion and a collimating lens portion, said prism portion including a first planar surface positioned parallel and adjacent to said display and a pair of optically aligned reflecting surfaces for transmitting a reflected image of said display, said first reflecting surface being disposed at an angle of about 45.degree. with respect to said first planar surface and said second reflecting surface being disposed at an angle of from about 103.degree. to about 107.degree. with respect to said first reflecting surface, said collimating lens portion comprising a convex lens having a focal point at said display and positioned to receive said reflected image for focusing said image at optical infinity;
• said display generating means being mounted on said first planar surface;
• and
• means for mounting said composite periscopic means and display generating means on headwear for positioning said collimating lens portion within the viewing field of the user.