Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate
2008-12-23
2010-11-30
Peng, Charlie (Department: 2883)
Optical waveguides
Planar optical waveguide
Thin film optical waveguide
C385S129000
Reexamination Certificate
active
07844157
ABSTRACT:
An optical waveguide for a luminescent device capable of efficiently leading light beams propagating through a core outwardly to cause light emission, and a manufacturing method thereof. The optical waveguide for a luminescent device includes an under cladding layer2, a core3formed in a predetermined portion of a surface of the under cladding layer2, and an over cladding layer4formed on the surface of the under cladding layer2so as to cover the core3. The over cladding layer4includes holes41formed in a predetermined portion thereof and extending to the core3. The holes41are filled with a coating material5having a refractive index not less than that of the above-mentioned core3.
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Nitto Denko Corporation
Peng Charlie
Westerman Hattori Daniels & Adrian LLP
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