MULTIPLE NUMERICAL APERTURE FIBER OPTICS ARRAY
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United States of America Patent
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Issued Date -
Nov 22, 2007
app pub date -
May 17, 2006
filing date -
May 17, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A multiple numerical aperture (MNA) fiber optics array is provided, which contains multiple fibers having two or more different numerical apertures arranged and fused together. Each fiber has a transparent core wrapped inside a cladding having a higher refractive index than that of the core. Therefore, by projecting light beams into the fibers of different numerical apertures from one end, the light beams emitted out of the other end of the fibers have different ranges of coverage. The MNA fiber optics array can be used in its rod form, or after the rod is sliced cross-sectionally. For the latter, the sliced MNA fiber optics array is further fabricated into plano-convex, concave lenses by grinding and polishing, or meniscus lenses by molding.
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