Title:
BACK FACE PROJECTION SCREEN
Document Type and Number:
Japanese Patent JP2015031702
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a projection screen having: color clarity of a transmission projection image in bright environment; a projection screen excellent in the effect of hot spot concealment; and noncombustibility complying with Building Standards Law.SOLUTION: A back face projection screen is a translucent laminate having light diffusion layers on both surfaces of a resin-impregnated cover glass cloth as a base material. The light diffusion layers contain 1-20 mass% of spherical particles whose sizes are 2.5-20 μm. A light irregular reflection layer having silicon oxide particles and/or pearl pigment particles is provided on at least one outermost surface of the translucent laminate.
Inventors:
SUDA KANAKO
Application Number:
JP2013158553A
Publication Date:
February 16, 2015
Filing Date:
July 31, 2013
Export Citation:
Assignee:
HIRAOKA & CO LTD
International Classes:
G03B21/62; H04N5/74
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Foreign References:
| WO2005003856A1 | 2005-01-13 | |||
| US20070091073A1 | 2007-04-26 | |||
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