200 Projector Screen
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 Epson Projector EMP REMOTE S3 S4 61 85 732 765c 1810 MANY MORE See Our List  US $25.00
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 Epson V12H004M03 ELPLM03 Middle Throw Projector Lens US $34.99
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 NEC NP06FL Short Throw Projector Lens Projector Lense US $1,770.33
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 Epson Middle Throw Projection Lens For PowerLite 7800P 7850P or 7900 Projector US $34.99
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 USED Epson V12H004M03 ELPLM03 Middle Throw Projector Lens 7900P 7850P 7800P US $29.99
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 Buhl Navitar 52 87 Lens for Proxima Sanyo Eiki Christie LCD XP Projectors US $599.00
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 InFocus SP LAMP 021 200 Watts Replacement Lamp for ScreenPlay 4805 Projector US $161.99
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 PANASONIC ET DLE450 Power Zoom Lens For PT 6000 Series Projectors US $1,795.00
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 Peerless PC932C Universal Ceiling Mount US $90.25
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 NEC NP215CASE Projector Case US $62.34
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 PANASONIC ET DLE250 POWER ZOOM LENS FOR PT D6000 AND PT D5700 PROJECTORS US $1,395.00
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 NEC SCP200 Suspended Ceiling Mounting Plate for Projector US $37.21
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Sony demonstrates 3D on 200 inch projector screen at IT SHOW 2010 SUNTEC CITY
Math Problem involving Illumination?
The intensity of illumination, I, on a movie screen varies inversely s the square of its distance from the projector. If the distance between the projector and the screen is changed from 200 ft. to 100 ft., by what factor is the intensity of the illumination changed?
If you get twice as close, the illumination increases by a factor of 4.
