On today in 1980, Valerie Thomas received a patent for an illusion transmitter. This futuristic invention extends the idea of television, with its images located flatly behind a screen, to having three dimensional projections appear as though they were right in your living room. Perhaps in the not-so-distant future, the illusion transmitter will be as popular as the TV is today (about.com). Her invention is early form of 3D/ holographic imaging. Patent 4,229,761
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