03-01-2021, 03:30 PM
03-01-2021, 07:04 PM
Lexan (polycarbonate). You can see any number of companies that make lexan overlays with a web search:
https://duckduckgo.com/?t=canonical&q=le...lay&ia=web
Our company made a product from 1995-2008 or so that used a lexan overlay because it allowed annunciators to be to be totally invisible until lights came on behind them, and then they'd pop out of the black background.
https://duckduckgo.com/?t=canonical&q=le...lay&ia=web
Our company made a product from 1995-2008 or so that used a lexan overlay because it allowed annunciators to be to be totally invisible until lights came on behind them, and then they'd pop out of the black background.