Method for forming a curved projection screen

Details Method for forming a curved projection screen Method for forming a curved projection screen

1990-11-19

1992-03-24

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

264 27, 264502, 264544, B29C 5110

Patent

active

050986163

ABSTRACT:
A sheet of material for forming the screen is mounted on a cylindrical forming drum and is blow formed, by hot air under pressure, to provide a projection screen. The resulting screen is curved along the width thereof and curved along the length thereof, and is formed from a single, continuous, sheet of material so that the screen is a stand-alone screen.

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patent: 4473355 (1984-09-01), Pongratz
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