Screen and projection system for reducing effects of ambient...

Details Screen and projection system for reducing effects of ambient... Screen and projection system for reducing effects of ambient...

2010-08-24

2011-12-20

Laballe, Clayton E (Department: 2862)

Optical: systems and elements

Projection screen

C359S449000, C353S084000

Reexamination Certificate

active

08081379

ABSTRACT:
A screen includes: a base material; and a pigmented layer provided on one surface of the base material, the pigmented layer including a first pigment that absorbs a visible light component contained in room light, and a second pigment that absorbs ultraviolet light, wherein the second pigment absorbs the ultraviolet light contained in sunlight, and varies the color imparted by a remaining visible light component unabsorbed by the first pigment absorbing the visible light component of the sunlight, the color being varied in such a manner as to reduce the absolute value of a color difference on a chromaticity diagram between a white point and a point indicative of the color imparted by the remaining component.

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