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2. Gain (projection screens) - Wikipedia

   en.wikipedia.org/wiki/Gain_(projection_screens)

   Screens with a higher brightness than this standard are rated with a gain higher than 1.0, while screens with lower brightness are rated from 0.0 to 1.0. Since a projection screen is designed to scatter the impinging light back to the viewers, the scattering can be highly diffuse or highly concentrated.

3. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   Ambient light originating from other sources may reach the eye immediately after having reflected from the screen surface, giving no advantage over a white high-gain screen in terms of contrast ratio. The potential improvement from a grey screen may thus be best realized in a darkened room, where the only light is that of the projector.

4. Black Widow (paint mix) - Wikipedia

   en.wikipedia.org/wiki/Black_Widow_(paint_mix)

   Black Widow (also known as a Black Widow Ultra in Europe) is a non-commercial open source project to design a paint mix for the base of a DIY projection screen.Anonymous DIYers responsible for popularizing Black Widow in the DIY community include Mechman Alternators (US), Wbassett (US) and Custard10 (EU). [1]

5. This is Amazon's best LED projector to buy for movie night - AOL

   www.aol.com/news/top-rated-led-projector-on...

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6. Viewing angle - Wikipedia

   en.wikipedia.org/wiki/Viewing_angle

   For example, some projection screens reflect more light perpendicular to the screen and less light to the sides, making the screen appear much darker (and sometimes colors distorted) if the viewer is not in front of the screen. Many manufacturers of projection screens thus define the viewing angle as the angle at which the luminance of the ...

7. The best portable projector I've ever used is down to a ... - AOL

   www.aol.com/lifestyle/best-portable-projector...

   This mini projector stands less than two inches high, but delivers crisp 1080p video and comes with Android 10.0 built in. (Photo: Xgimi) Although 1080p resolution is a far cry from 4K, a native ...