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' Нашел про материалы:
' http://www.shopcousinsvideo.com/drapscreenma.html
'
' Fiberglass Matt White The standard to which all other screen surfaces are compared. Matt white vinyl reflective surface laminated to tear-resistant woven fiberglass. A matt white surface diffuses projected light in all directions, so the image can be seen from any angle. Provides accurate color rendition as well as superior clarity. Recommended for use with all high light output projection devices. Requires control of ambient light in the audience area. Washable, flame and mildew resistant. Peak gain 1.0
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' Glass Beaded Brighter on-axis viewing than matt white surfaces, excellent color rendition, with some loss of clarity. Somewhat narrower viewing cone than matt surfaces. Not for use with ceiling mounted projectors. Flame and mildew resistant; cannot be cleaned. Peak gain 2.5
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' А насколько резко падает коэффициент при отклонении от перпендикуляра?
' 30 градусов отклонения и он будет сильно меньше 1.0?
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а в чем разница у экранов Draper?(+) -- bda -- 31.01.03@13:31 (Чит.: 205)