How does it work?
The Screen Innovations Mirage Screen, with optics by DNP, features a patented high-contrast filter that covers 60% of the screen surface. This filter allows the projected image to be reflected by the screen and effectively absorbs incidental light from other angles from such sources as windows and room lighting. As a result, the screen is virtually unaffected by ambient light.

Screen Innovations Mirage Screen Product Highlights:
· Optical Front Projection
· Projection in Brightly-lit Rooms
· 10x higher contrast than standard front projection screens
· 2x brighter images
· Compatible with all LCD, DLP, and LCOS projectors
· Screen sizes available in 1" diagonal increments:
4:3 60"-100"
16:9 60"-120"

http://www.projectorcentral.com/news_story_824.htm

Questo schermo di prossima uscita sembra poter rendere "gradevole" l'uso del proiettore anche col 90% di luce.

Qualcuno ha mai visto guadagni simili con uno schermo, e la qualita' ne risente?

Saluti