Light guide screen louver device

Details Light guide screen louver device Light guide screen louver device

2005-11-01

2008-07-08

Font, Frank G (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S031000, C385S039000, C385S901000, C362S279000, C362S290000, C362S325000, C362S330000, C362S342000, C362S354000, C362S615000, C362S616000, C362S619000, C362S622000, C362S627000, C349S062000, C349S063000, C349S066000

Reexamination Certificate

active

07397984

ABSTRACT:
In a particular embodiment, the louver device includes a transparent layer of material having a first surface and, parallel thereto, a second surface. A plurality of shaped louver members are disposed within the transparent layer of material. The shaped louver members are aligned to receive light entering the first surface at a first angle relative to the first surface and direct the light out the second surface at a plurality of angles relative to the second surface.

REFERENCES:
patent: 3043910 (1962-07-01), Hicks, Jr.
patent: 4929048 (1990-05-01), Cuypers
patent: 5293305 (1994-03-01), Koster
patent: 5917565 (1999-06-01), Suzuki
patent: 6219483 (2001-04-01), Sugawara et al.
patent: 6550937 (2003-04-01), Glass
patent: 6571043 (2003-05-01), Lowry et al.
patent: 2006/0034099 (2006-02-01), Yang et al.
patent: 2006/0176554 (2006-08-01), Kuo et al.
patent: 2006/0176556 (2006-08-01), Kuo et al.

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