Light transmission screen and its manufacturing method

Details Light transmission screen and its manufacturing method Light transmission screen and its manufacturing method

1995-02-17

1998-09-29

Malley, Daniel P.

Optical: systems and elements

Projection screen

With lens

359443, 359452, 359456, 359459, G03B 2156

Patent

active

058153136

ABSTRACT:
The present invention makes it possible to improve color shift, shading and view angles, to prevent external light absorption and reflection, to enhance external light contrast, to eliminate reflection of external images that appear on a light transmission screen's face plate, and to provide distinct pictures free of the adverse effects of dust. The light transmission screen disclosed by the present invention comprises a Fresnel lens sheet, a transparent lenticular lens sheet arranged on the Fresnel lens sheet's radiant light side and a front diffusion panel formed of a thin diffusion layer and a transparent layer and arranged on the lenticular lens sheet's light radiant side.

REFERENCES:
patent: 4083626 (1978-04-01), Miyahara et al.
patent: 5066099 (1991-11-01), Yoshida et al.
patent: 5146342 (1992-09-01), Yokoo et al.
patent: 5434706 (1995-07-01), Mitani et al.
patent: 5485308 (1996-01-01), Hirata et al.
patent: 5587816 (1996-12-01), Gunjima et al.

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