Projection screen with reduced speckle

Details Projection screen with reduced speckle Projection screen with reduced speckle

2004-06-25

2008-03-11

Mahoney, Christopher (Department: 2862)

Optical: systems and elements

Projection screen

Embedded particles

C359S460000

Reexamination Certificate

active

07342719

ABSTRACT:
The projection screen assembly minimizes speckle while preserving high ambient viewability. The screen assembly, having a light-source side and a viewing side, includes a screen layer, a polarizing contrast filter, and a speckle contrast reducing layer. The screen layer disperses light passing through the screen assembly from the light-source side. The polarizing contrast filter is disposed on the viewing side of the screen layer and reduces ambient glare. The speckle contrast reducing layer is disposed on the light-source side of the screen layer and reduces speckle formed in projected images on the viewing side of the screen assembly.

REFERENCES:
patent: 5880887 (1999-03-01), Goto
patent: 6172814 (2001-01-01), Watanabe et al.
patent: 6278546 (2001-08-01), Dubin et al.
patent: 6344263 (2002-02-01), Moshrefzadeh et al.
patent: 6466368 (2002-10-01), Piepel et al.
patent: 6535333 (2003-03-01), Piepel et al.
patent: 6567215 (2003-05-01), Ballen et al.
patent: 6846089 (2005-01-01), Stevenson et al.
patent: 6867928 (2005-03-01), Wolfe
patent: 6934080 (2005-08-01), Saccomanno et al.
patent: 2003/0163367 (2003-08-01), Piepel et al.

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