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Objects that can change colors like a chameleon (techxplore.com)
26 points by dnetesn 9 days ago | hide | past | web | favorite | 2 comments

Had the same idea 5 years ago but never tested it. The way I thought about solving it was more complicated, it involved a laser protector matching the absorption frequencies for each photochromic crystal (CMY) thus selectively heating each color. The only manufacturer of photochromic inks I knew was Zink but I didn't even imagine they would be willing to ship me some samples because they use them for their products. I could have asked my university for help but their policy was to keep 98% of the patent.

But what does Chameleon say? https://www.youtube.com/watch?v=VNkDJk5_9eU

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