Collimator and optical filter device using the same

Details Collimator and optical filter device using the same Collimator and optical filter device using the same

2008-03-04

2008-03-04

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S027000, C385S031000, C385S032000, C385S039000

Reexamination Certificate

active

07340131

ABSTRACT:
It is a collimator adapted to convert divergent light beams outputted from an optical fiber bundle to parallel light beams through a collimator lens. A large diameter optical fiber is disposed between an optical fiber bundle, which is a bundle of a large number of multimode optical fibers and serves as one optical transmission path, and a collimator lens. A cross-section of the core of the large diameter optical fiber is larger than a range in which the cores of the optical fibers of the optical fiber bundle are present. Also, a group of divergent light beams outputted from the optical fibers of the optical fiber bundle is converted by the large diameter optical fiber to one light beam.

REFERENCES:
patent: 2004/0120717 (2004-06-01), Clark et al.
patent: 2005/0094952 (2005-05-01), Gonthier et al.
patent: A-62-75606 (1987-04-01), None
patent: A-11-326210 (1999-11-01), None

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