Micro-aspheric collimator lens

Micro-aspheric collimator lens

Apparatus for coupling light from one optical fiber into another includes a pair of molded plano-convex lenses. Each lens has an aspheric surface and a flat surface. The aspheric surfaces have a conic constant between -0.6 and -0.3, where the conic constant is chosen so as to give optimal coupling e...

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Hauptverfasser: BOWEN JOHN P, BIETRY JOSEPH R, LUDINGTON PAUL D
Format: Patent
Sprache:eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator BOWEN JOHN P
BIETRY JOSEPH R
LUDINGTON PAUL D
description Apparatus for coupling light from one optical fiber into another includes a pair of molded plano-convex lenses. Each lens has an aspheric surface and a flat surface. The aspheric surfaces have a conic constant between -0.6 and -0.3, where the conic constant is chosen so as to give optimal coupling efficiency from a collimated beam input on the aspheric surface into an optical fiber located near the flat surface. The pair of lenses are separated by a distance approximately equal to the sum of the focal lengths of the lenses. Light from an optical fiber placed near the focal plane of one of the pair of lenses is focused into an optical fiber placed near the focal plane of the other of the pair of lenses.
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OPTICS
PHYSICS
title Micro-aspheric collimator lens
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