Optical waveguide with a colored layer and method for...

Details Optical waveguide with a colored layer and method for... Optical waveguide with a colored layer and method for...

2008-03-27

2009-11-17

Peng, Charlie (Department: 2883)

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

C385S129000

Reexamination Certificate

active

07620285

ABSTRACT:
The present invention provides an optical waveguide including: a cladding; at least one core embedded in the cladding; and a colored layer that is provided at a portion substantially overlapping with the core when viewed from a direction substantially perpendicular to the principal surfaces of the optical waveguide, and that is not in contact with the core.

REFERENCES:
patent: 5082347 (1992-01-01), Akasaka et al.
patent: 6549685 (2003-04-01), Marks et al.
patent: 7373066 (2008-05-01), Ishikawa et al.
patent: 2004/0218851 (2004-11-01), Izumitani et al.
patent: 08-286064 (1996-11-01), None

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