Light guiding diffuser

Details Light guiding diffuser Light guiding diffuser

2011-07-05

2011-07-05

Husar, Stephen F (Department: 2875)

Illumination

Light source and modifier

Including translucent or transparent modifier

C362S311060, C362S311080, C362S311100, C362S326000, C362S335000

Reexamination Certificate

active

07972039

ABSTRACT:
A light guiding diffuser used for assembling with a light emitting diode module to form an illuminating light source. The light guiding diffuser includes an elliptical ring-shaped base portion and a convex portion extended from a surface of the base portion and formed a space with the base portion for accommodating the light emitting diode module. The convex portion has a cross section which has a minimum thickness in a center thereof and the thickness of the cross section continuous increases from the center toward the base portion.

REFERENCES:
patent: 7422347 (2008-09-01), Miyairi et al.
patent: 7649697 (2010-01-01), Yoon et al.
patent: 7780313 (2010-08-01), Lam et al.

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