Rear projection screens shall be Da-Lite's
Black Stripe as furnished by Da-Lite Screen
Company, Inc., Polacoat Division, Blue Ash,
Ohio. Screen shall be double element with four
active lens surfaces. The rear element to be a
horizontal lenticular lens on the back with a
Fresnel lens on the front side. The back of the
front element is to be a lenticular lens array
with a pitch of 1.04mm - 1.2mm. The front
surface shall be a black stripe system covering
37% of the screen surface for ambient light
absorption. On axis gain shall be 4.0 +
0.5 and part thickness shall be a nominal
1/4". The horizontal 1/2 gain angle to be
41° + 4° and the vertical 1/2 gain
angle to be 12° +1.5°.
Da-Lite's
![](specs/pics/dnp.gif)
rear projection screens are designed for a long,
useful life. Properly installed and cared for,
they will produce high quality images for many
years. Listed below are recommended methods to
clean and handle each of Da-Lite's
![](specs/pics/dnp.gif)
screen surfaces.