If they use an epoxy with the same refractive index as celllose and manage to totally eliminate any gaps/air they will get closer to glass, but I feel it will s

If they use an epoxy with the same refractive index as celllose and manage to totally eliminate any gaps/air they will get closer to glass, but I feel it will stilll be a little foggy. They have been playing at this for decades because cellulose is the cheapest fiber. You can use a solution of cellulose(Viscose https://en.wikipedia.org/wiki/Rayon https://en.wikipedia.org/wiki/Rayon) that you spin into fine monofilaments to immerse in a similar epoxy pane for the same effect,