Per Black Facts on this day October 21st, 1980 Valerie Thomas invented the illusion transmitter.
Biography.com Valerie Thomas “In 1980, Thomas received a patent for an illusion transmitter. The device produces optical illusion images via two concave mirrors. Unlike flat mirrors, which produce images that appear to be inside, or behind the mirror, concave mirrors create images that appear to be real, or in front of the mirror itself. This technology was subsequently adopted by NASA and has since been adapted for use in surgery as well as the production of television and video screens.”