Coupled waveguides for light extraction

Details Coupled waveguides for light extraction Coupled waveguides for light extraction

2005-02-22

2008-10-07

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S504000, C313S505000, C313S483000, C313S498000, C428S690000, C428S917000

Reexamination Certificate

active

07432649

ABSTRACT:
A light source includes a first waveguide. The first waveguide includes a light emitting material having a first index of refraction and at least one layer is disposed over the light emitting material. The at least one layer has a second index of refraction and the first index of refraction is greater than the second index of refraction. The light source also includes a second waveguide, which is coupled to the first waveguide. The light emitting device also includes a light extraction structure.

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