Patent · US Active

Curved back-projection screen

US9513541B2 · kind B2 · utility

2Cited by

14References

15Claims

0Family size

Assignee

BARCO N.V. · BE

Inventors

Koenraad Vermeirsch · Bellegem, BE
Stefaan Ducasteele · Zonnebeke, BE
Geert Matthys · Kuurne, BE
Patrick Candry · Harelbeke, BE

Key dates

Filing date	Oct 28, 2010
Grant date	Dec 6, 2016
Priority date	—
Expiry date	Oct 28, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG03B37/04
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A curved back-projection screen having an angle of curvature greater than 180° is described such as a wrap-around cylindrical or dome screen. The screen includes a first layer and a second synthetic resin diffusing layer on the first layer, the second synthetic resin diffusing layer containing a light absorbing material and light diffusing particles embedded in a resin material, with the second synthetic resin diffusing layer having a value of the product of the absorption coefficient and thickness of between 0.1 and 2. The second synthetic resin diffusing layer can be applied by spraying.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.