Lumenlab > Can It Work For A Small Throw Distance Projector?

Dr.F

Oct 5 2006, 06:20 AM

Like the title say, can this type of lense work for a DIY projector? I know it will give a very short throw distance (like 2-3 feet) with a 5" lcd (lets say like a psone screen

) and a 85-90" screen, so its a little to close to the screen. So could it be used for a rear projection tv? (i thike it initially come from one) If so, what kind of mats/fabrics should i use for the screen??

Here is the ebay link of the lens: http://cgi.ebay.ca/Projection-TV-lenses-se...1QQcmdZViewItem

tameone

Oct 5 2006, 01:51 PM

QUOTE (Dr.F @ Oct 5 2006, 02:20 AM)

Like the title say, can this type of lense work for a DIY projector? I know it will give a very short throw distance (like 2-3 feet) with a 5" lcd (lets say like a psone screen

) and a 85-90" screen, so its a little to close to the screen. So could it be used for a rear projection tv? (i thike it initially come from one) If so, what kind of mats/fabrics should i use for the screen??

Here is the ebay link of the lens: http://cgi.ebay.ca/Projection-TV-lenses-se...1QQcmdZViewItem

80" screen from 2.7' using an unsplit setup. finding a ~55-60mm field fresnel will be the real problem

tgreenwood

Oct 6 2006, 05:55 AM

QUOTE (Dr.F @ Oct 5 2006, 01:20 AM)

Like the title say, can this type of lense work for a DIY projector? I know it will give a very short throw distance (like 2-3 feet) with a 5" lcd (lets say like a psone screen

) and a 85-90" screen, so its a little to close to the screen. So could it be used for a rear projection tv? (i thike it initially come from one) If so, what kind of mats/fabrics should i use for the screen??

Here is the ebay link of the lens: http://cgi.ebay.ca/Projection-TV-lenses-se...1QQcmdZViewItem

Tv projection lenses are made to have the CRT (or in your case the LCD) right up against the rear of the lens. It would certainly make your box shorter.

Tgreenwood