Searching for Anti Reflective Glass

[borgqueenx]

Im searching for a anti reflective glass... maybe on a lens or something, i do not care.

its for my laser projector. i want to seal off the projector so i dont need to clean it every once a while. but i ofcource do not want to lose power, so therefore im searching for something.the glass has to be at least 7cm in diameter.

anyone any ideas to help this laserist?

 

[BShanahan14rulz]

Glass Lenses

Usually used for flashlights.

 

[borgqueenx]

Glass Lenses

Usually used for flashlights.

that site is a bit shady.
it says 0.95mm AR Size* . whats that supposed to mean.
and the item options....does the 22.61 mean 22cm? or 2,2cm?
i need 7 - 11cm but not anything bigger or smaller.