Im a newbie and every post mentions gain. I can't quite figure out what is meant by the term. Its not in the glossary and searching on "gain" isn't too useful. Can anyone help me out. Im going to start building a parkland screen soon.
Gain is a term describing how much light is reflected back to the viewing position relative to that which a standard white screen would reflect( 1.0 gain). A better, but seldom used , term would be directionality. The screen doesn't make more light but gain screens concentrate more toward the center at the expense of the off axis viewing. E.g. 1.5 gain will give 50% more reflected light at the center viewing position, 1.8 80% more etc.
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