Patent
1989-10-02
1990-10-23
Wintercorn, Richard A.
G03B 2160
Patent
active
049646958
ABSTRACT:
A front projection screen has lenticules separated by grooves. A black plastic structure having protruding black ribs is aligned with the lenticules so that the ribs protrude into the grooves with clearance on both sides. For a front projection screen the base from which the ribs protrude is shaped to conform to the shape of the tips of the lenticules and is light absorbent. Preferably, the structure is a molded plastic manufactured by the same tooling and replication techniques which produce the lenticular array.
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Fox John C.
North American Philips Corporation
Wintercorn Richard A.
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