Brightness enhancement article having trapezoidal prism surface

Illumination – Edge lighted panel – Light guide

Reexamination Certificate

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C362S558000, C385S129000, C359S834000, C349S064000

Reexamination Certificate

active

06997595

ABSTRACT:
A brightness enhancement article for improving luminance from a light source includes a light-collecting prism surface forms a series of longitudinal trapezoidal prism elements in which each has a face plane disposed toward the light source and first and second legs extending back from the face plane, forming first and second base anglesβ with the face plane wherein both first and second base anglesβ satisfy: 90 degrees<base angle β<120 degrees.

REFERENCES:
patent: 3129895 (1964-04-01), Franck
patent: 4368504 (1983-01-01), Sato et al.
patent: 5396350 (1995-03-01), Beeson et al.
patent: 5839823 (1998-11-01), Hou et al.
patent: 5917664 (1999-06-01), O'Neill et al.
patent: 5944405 (1999-08-01), Takeuchi et al.
patent: 6049649 (2000-04-01), Arai
patent: 6494588 (2002-12-01), Okada
patent: 6502947 (2003-01-01), Matsumoto et al.
patent: 6570710 (2003-05-01), Nilsen et al.
patent: 6669350 (2003-12-01), Yamashita et al.
patent: 6693690 (2004-02-01), Umemoto et al.
patent: 6700716 (2004-03-01), Sejkora
patent: 0 588 504 (1994-03-01), None
patent: 0 785 458 (1997-07-01), None

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