Light collimating and diffusing film and system for making...

Optical: systems and elements – Diffusing of incident light

Reexamination Certificate

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C359S641000, C359S900000

Reexamination Certificate

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11429842

ABSTRACT:
A light collimating and diffusing film and a method for making the film are provided. The film includes a plastic layer having a first side and a second side opposite the first side and at least a first peripheral edge. The first side has a first textured surface, wherein between 7 to 20 percent of slope angles on the first textured surface proximate a first axis has a value between zero and five degrees. The first axis is substantially parallel to the first peripheral edge. The plastic layer collimates light propagating therethrough.

REFERENCES:
patent: 5944405 (1999-08-01), Takeuchi
patent: 6285001 (2001-09-01), Fleming
patent: 6297908 (2001-10-01), Suga
patent: 6452653 (2002-09-01), Yamanaka et al.
patent: 6476890 (2002-11-01), Funahata
patent: 6583936 (2003-06-01), Kaminsky
patent: 6636363 (2003-10-01), Kaminsky
patent: 6721102 (2004-04-01), Bourdelais
patent: 2002/0018161 (2002-02-01), Yamanaka
patent: 2002/0027627 (2002-03-01), Yamada
patent: 2002/0033915 (2002-03-01), Masaki
patent: 2002/0191134 (2002-12-01), Funahata
patent: 2003/0025852 (2003-02-01), Ishitake
patent: 2003/0030372 (2003-02-01), Masaki
patent: 2003/0169499 (2003-09-01), Bourdelais
patent: 2003/0169512 (2003-09-01), Bourdelais
patent: 2003/0169513 (2003-09-01), Kaminsky
patent: 2003/0170442 (2003-09-01), Kaminsky
patent: 2003/0223533 (2003-12-01), Hsieh
patent: 2004/0068167 (2004-04-01), Hsieh
patent: 2004/0080725 (2004-04-01), Kaminsky
patent: 2004/0120136 (2004-06-01), Olczak
patent: WO/03/032074 (2003-04-01), None
patent: WO 03032074 (2003-04-01), None
PCT Search Report, PCT/US2005/025699 Mailing date Oct. 28, 2005.

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