FIELD: physics.
SUBSTANCE: foldable projection screen relates to portable projection screens and includes a solid-state composite plane coated with a light-reflecting film, mounted on a support. The screen is formed from four equiareal pivotally connected upper plates A, B and lower plates C, D, which can be folded with each other: A with B and C with D with front faces of the plates opposite each other, and then A with C with rear sides of the plates, for which there is no pivot between one pair of plates B and D.
EFFECT: compactness and easier transportation of the screen and the projector in a single case.
3 cl, 2 dwg
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