Projection screen

Details Projection screen Projection screen

1994-06-14

1995-12-19

Wintercorn, Richard A.

Optical: systems and elements

Projection screen

Unitary sheet comprising plural refracting areas

359453, 359460, G03B 2160

Patent

active

054773806

ABSTRACT:
A projection screen comprises a horizontal refracting linear Fresnel lens sheet, a vertical refracting linear Fresnel lens sheet and a light diffusing lenticular lens sheet, which are arranged from the beam-projection side starting with the horizontal refracting linear Fresnel lens sheet followed by the vertical refracting linear Fresnel lens sheet and ending with the light diffusing lenticular lens sheet.

REFERENCES:
patent: 4576850 (1986-03-01), Martens
patent: 4961642 (1990-10-01), Ogino
patent: 5206761 (1993-04-01), Ogino

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