Optical waveguides – Miscellaneous
Reexamination Certificate
2008-05-06
2008-05-06
Nguyen, Dung (Michael) T. (Department: 2828)
Optical waveguides
Miscellaneous
C385S039000, C385S121000, C359S534000, C359S838000
Reexamination Certificate
active
11495871
ABSTRACT:
The present invention provides a device and method to efficiently turn light from an optical fiber around a corner while avoiding the frustrated-TIR loss that would occur if the fiber were bent. The invention uses non-imaging optics which efficiently deal with beam divergence half-angles less than 90°. By recognizing that most light from a fiber optic source will have a divergence half-angle of less than 90 degrees, a practical solution is achieved using non-imaging optics.
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Nellcor Puritan Bennett Inc.
Nguyen Dung (Michael) T.
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