Film-Tech Forum ARCHIVE: Optical Glass

This is topic Optical Glass in forum Digital Cinema Forum at Film-Tech Forum ARCHIVE.

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Posted by Tim Sherman (Member # 569) on 03-27-2013, 10:55 AM:

Might be a stupid question, but I am making my own ports and have the new optical glass on hand. My question is which way is the coating side of the glass supposed to face? Tward the projector or the screen? My guess would be tward the projector but I wanted to find out from everyone first so i can be sure.

Posted by Steve Guttag (Member # 268) on 03-27-2013, 03:54 PM:

If the glass is any good, it should be coated on BOTH sides!

But, if it is only coated on one side, the coated side goes towards the light source.