Thin and flexible light guide element

Details Thin and flexible light guide element Thin and flexible light guide element

2011-01-04

2011-01-04

O Shea, Sandra L (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S612000, C362S615000, C362S619000, C362S620000, C349S065000

Reexamination Certificate

active

07862223

ABSTRACT:
The subject invention provides a thin and flexible light guide element, which comprises a first optical layer composed of a flexible transparent material; a second optical layer formed on the lower side of the first optical layer and having a light-adjusting structure to change the light path; and a third optical layer formed on the upper side of the first optical layer and having a convex-concave structure to homogenize the light emitted from the first optical layer, wherein the first and second optical layers have different refractive indices.

REFERENCES:
patent: 6247826 (2001-06-01), Funamoto et al.
patent: 2004/0130912 (2004-07-01), Miyashita

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