Comment Concentrate on the optics, forget about the paper (Score 1) 83
This is very cool.
The magic and complexity seems to be all in the optic path; if they're forming a carrier tape with a special cavity to carry the lens, maybe they should focus (ha!) on also putting the LED on that carrier and controlling the dimensions of that small piece such it it can be held directly against a slide and remove the need for laser-cut paper and controlling the focal distance during folding and assembly of the paper. Then a reel of the optical "guts" could be produced and shipped.
But then again, I could just be a random stranger on the Internet talking out of my ass.