Front projection screen

Details Front projection screen Front projection screen

1976-10-01

1978-01-17

Griffin, Donald A.

G03B 2160

Patent

active

040689220

ABSTRACT:
A cellulose acetate butyrate lacquer film containing minute beads of the clear lacquer is backed by a reflective surface, to form a high resolution front projection screen of selective gain. The gain of the screen depends upon the thickness of the lacquer film and the reflectivity of the backing member.

REFERENCES:
patent: 1926732 (1933-09-01), North
patent: 1942841 (1934-01-01), Shimizu
patent: 2323754 (1943-07-01), Oliver
patent: 2508058 (1950-05-01), Bradley
patent: 3507548 (1970-04-01), Hoffmann et al.
patent: 3614199 (1971-10-01), Altman
patent: 3653740 (1972-04-01), Ogura et al.

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