Optical sheet and a light transmission screen using the same

Details Optical sheet and a light transmission screen using the same Optical sheet and a light transmission screen using the same

1996-03-14

1998-03-03

Malley, Daniel P.

Optical: systems and elements

Projection screen

Unitary sheet comprising plural refracting areas

359455, 359460, G03B 2160

Patent

active

057241821

ABSTRACT:
The present invention provides a bright light transmission screen and light diffusion panel. Am amtireflective film is disposed on the surface of a lenticular lens sheet substrate included in a light transmission screen. The antireflective film is made from a high polymer compound of a low refractory index and has a thickness that is different from .lambda./(4n). The antireflective film may also be disposed on a Fresnel lens sheet substrate or a light diffusion panel substrate.

REFERENCES:
patent: 4165153 (1979-08-01), Land
patent: 4721361 (1988-01-01), Van De Ven
patent: 5400114 (1995-03-01), Yoshida et al.
patent: 5485308 (1996-01-01), Hirata et al.
European Search Report dated Jul. 19, 1996.

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