Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2008-07-22
2008-07-22
Pak, Sung (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S088000, C257S098000
Reexamination Certificate
active
10726244
ABSTRACT:
An illumination system has individual light emitting diodes (LEDs) that are optically coupled via reflective couplers to respective optical fibers. The respective optical fibers may then be bundled. The shape of the reflective coupler may be selected to increase the coupling efficiency between the LED and its optical fiber. The reflective coupler may be formed as an aperture through a sheet, having a first shape at the input side and a second shape, different form the first shape, at the second side. The reflective coupler may be formed as an aperture through a body, where at least a first portion of the interior surface of the aperture conforms to a two-dimensional (2-D) surface and at least a second portion of the interior surface conforms to a three-dimensional (3-D) surface.
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3M Innovative Properties Company
Pak Sung
Pralle Jay R.
Stahl Mike
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