Two-layered optical plate including skewed micro-depression...

Details Two-layered optical plate including skewed micro-depression... Two-layered optical plate including skewed micro-depression...

2007-10-22

2010-06-22

Lee, Jong-Suk (James) (Department: 2885)

Illumination

Light modifier

Refractor

C362S330000, C362S339000, C362S558000, C362S620000

Reexamination Certificate

active

07740383

ABSTRACT:
An exemplary optical plate includes a transparent layer and a light diffusion layer. The transparent layer includes a light input interface, a light output surface opposite to the light input interface, and a plurality of micro-depressions formed on the light output surface. The micro-depressions are arranged along a plurality of imaginary, separate, circular arcs. Each micro-depression has at least three side surfaces connected to each other, and a transverse width of each side surface increases along a direction away from the light diffusion layer. The light diffusion layer is integrally formed in immediate contact with the light input interface of the transparent layer, and free of air or gas pockets trapped in an interface therebetween. The light diffusion layer includes a transparent matrix resin and a plurality of diffusion particles dispersed in the transparent matrix resin.

REFERENCES:
patent: 6700707 (2004-03-01), Kashima et al.
patent: 6752505 (2004-06-01), Parker et al.
patent: 2006/0256582 (2006-11-01), Chuang
patent: 2007/0229958 (2007-10-01), Mai
patent: 2008/0117515 (2008-05-01), Hsu et al.
patent: 2008/0117516 (2008-05-01), Hsu et al.
patent: 8-001714 (1996-01-01), None
patent: 2004348000 (2004-12-01), None
English Abstract of Japanese Publication JP 2004348000 A.

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