Hello everyone,
I'm considering buying an LCD projector.
I'd like to decide which light output is OK for my application, watching
movies in my living room.
Say there is 4 meters between the projector and the projection screen,
knowing a lamp total luminous flux in Lumens, is there an equation that
would give me Luminance? Assuming a perfectly reflecting screen?
I remember that movies are viewed in commercial theaters at around 45
cd/m2.
I'd like to find out what luminance to expect from lamps between 1000 to
2000 Lumens.
I don't want to overbuy but I don't want to underbuy either.
Prices are coming down though.
Thank's in advance for your kind help,
Roger Breton
