Tintem

Haha yes. And add to that the fact that the windows are nearly 100sqft each. Part of me wonders what would happen if I laminated AR film and night vision ceramic film together. I suppose I would lose a lot of optical clarity at a minimum, but I'm wondering what the internal reflectivity would be like. I suspect that I would run into some physics limitations as you describe but I'd still be interested to try it out on a sample piece of glass.

Yes well the main objective is to reduce internal reflectivity so that my indoor lights interfere less with the night time view. Privacy and glare reduction are secondary. It's surprising to me that the best I can do with architectural tint (i.e. lowest internal reflectivity) would be to match the reflectivity of regular glass. My windows seem pretty reflective already!

Thanks for that. I have seen this type of film, quite funny to see it being installed where people's windows melted their turf or outdoor furniture. I think the other type I posted might be the only thing that would work (other than buying AR glass windows), but it's close to $100/ft so I probably won't be doing that!

Thanks for the info and those pictures. I think that if privacy was my primary concern, I would be willing to accept a higher degree of internal reflectance. But lowering internal reflectance is the main concern. For example, it is possible to get anti-reflective (AR) glass. It's used in art galleries, glasses, some phones, etc. I think I may have had a misconception that window films could get similar performance. Whereas it seems that the least reflective window films only get close to, or match, the internal reflectance of untreated glass. Update: I just found this stuff. I think it would be cheaper to get new windows lol. https://www.mecanusa.com/Anti-Reflective-Glare-AR-AGAR-Film/Anti-Reflective-Film-Roll-Indoor.htm

Thanks to everyone for your helpful replies. I see that on Llumar's spec sheets, they list "clear glass" as having an internal visible reflectance % of 8%, and only their most extreme tints match that number. Does that mean that nearly all of their films are more internally reflective than untreated glass? I find that hard to believe. They only have two films from the Harmony series which manage a lower internal VR number of 7, and they are non-reflective on the outside too. Spec sheets: https://llumar.com/content/dam/eastman/performance-films/llumar/nar/documents/english/arch/vista-arch-solar-safety-window-film-specs.pdf https://llumar.com/content/dam/eastman/performance-films/llumar/tools-data/downloads-library/performance-data/arch-solar-control-window-film-specs-na.pdf The whole exercise would be a bit pointless if the best I could do was match the the untreated glass' performance on the main feature I'm aiming for haha.

Hi guys, I’m looking for advice on some architectural film. I hope I’ve posted in the right place. I want to tint the windows in my apartment. It would be nice to have some degree of added privacy and UV/heat protection but those are secondary. The main thing I’m looking for is something with low internal reflectivity because I don’t want my internal lights to interfere with the view. I saw 3M’s “Sun Control Window Film, Night Vision Series” and it looks great but it’s quite a lot more than I want to spend. It looks to be about $1750 per roll and you get a lot more than I need. Is there anything else that has similar non-reflex properties on the inside? Ideally I just want dark, maybe silver reflective if nothing else is available, around 50% or maybe 35%. Please let me know if such a thing exists. Or if it’s standard for window films to have low internal reflectivity, and this is just 3M marketing talk. Thanks tt