Directional diffuser

Details Directional diffuser Directional diffuser

2007-07-26

2008-12-02

Amari, Alessandro (Department: 2872)

Optical: systems and elements

Diffusing of incident light

C359S900000

Reexamination Certificate

active

07460303

ABSTRACT:
A diffuser is disclosed which transmits or reflects incident light into a specific range of angles. In a preferred embodiment, this light is uniformly scattered throughout a cone of angles. The diffuser consists of two parts. The first part diffracts or reflects light into a specific offset angle. The second part, in the preferred embodiment, uniformly scatters the light through a range of angles, which is centered on the offset angle. The diffusers have utility in applications such as screens for wrist watches, computers, calculators, and cell phones.

REFERENCES:
patent: 3718078 (1973-02-01), Plummer
patent: 3834786 (1974-09-01), Carlsen
patent: 4298249 (1981-11-01), Gloor et al.
patent: 4402571 (1983-09-01), Cowan et al.
patent: 4888260 (1989-12-01), Cowan
patent: 5004673 (1991-04-01), Vlannes
patent: 5600462 (1997-02-01), Suzuki et al.
patent: 5631754 (1997-05-01), Jannson et al.
patent: 5771328 (1998-06-01), Wortman et al.
patent: 6024455 (2000-02-01), O'Neill et al.
patent: 6076933 (2000-06-01), DiLoreto et al.
patent: 6081376 (2000-06-01), Hansen et al.
patent: 6285503 (2001-09-01), Chao et al.
patent: 6331915 (2001-12-01), Myers
patent: 6348995 (2002-02-01), Hansen et al.
patent: 6400509 (2002-06-01), Sappey et al.
patent: 6410213 (2002-06-01), Raguin et al.
patent: 6509982 (2003-01-01), Steiner
patent: 6608722 (2003-08-01), Cowan et al.
patent: 6940665 (2005-09-01), Cowan et al.
patent: 7221512 (2007-05-01), Steenblik et al.
patent: 2002/0090578 (2002-07-01), Schaefera et al.
patent: 0 332 790 (1994-11-01), None
patent: WO 95/04303 (1995-02-01), None
patent: WO 01/04697 (2001-01-01), None
patent: WO 2005/115119 (2005-12-01), None
Communication from the European Patent Office for EP 01 957 588.5, mailed Oct. 11, 2007.
International Search Report for PCT/US01/41559, mailed Jan. 22, 2003.

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