I have no doubt that the reporter who went to that electronic show in Japan, 1985 as reported in the Popular Science article, actually saw a working prototype of the Sanyo beam index prototype. The reporter interviewed Sanyo representatives.
If it went to market as promised in 1986 or later, there should be a paper trail evidencing this.
That is why I'm intrigued by Jerome's sighting. I want it to exist.
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