Projection screen for two- and three-dimensional projections

Details Projection screen for two- and three-dimensional projections Projection screen for two- and three-dimensional projections

G - Physics

03

B

88/90

G03B 21/62 (2006.01)

Patent

CA 1257492

ABSTRACT OF THE DISCLOSURE The present invention provides projection screens for two-or three-dimensional front and back projections in the form of panes or sheets of plastics, when required with delustering lamina and is characterized in that a plastics having notice- ably directed transmission, a transmission degree of approxi- mately 1 to 98%, a scattering power of less than 0.3 and a luminous density coefficient of .epsilon.2 = 5° of and exceeding 0.5 is used.

481159

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