Optical coupling element and optical coupling unit

Details Optical coupling element and optical coupling unit Optical coupling element and optical coupling unit

2008-03-20

2009-02-10

Kim, Ellen (Department: 2874)

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

C385S092000, C385S093000

Reexamination Certificate

active

07488118

ABSTRACT:
An optical coupling element disposed between an optical fiber and an optical element that face each other and optically coupling these two facing components includes a substantially cylindrical optical coupling portion whose opposite end surfaces respectively face the optical fiber and the optical element; and a projection projecting radially from a periphery of the optical coupling portion and being located closer towards one of the opposite end surfaces with respect to a center position therebetween. A diameter of the optical coupling portion at a position corresponding to a first end surface of the projection is substantially equal to a diameter of the optical coupling portion at a position corresponding to a second end surface of the projection. The periphery of the optical coupling portion includes periphery surfaces tapered from the positions corresponding to the first and second end surfaces of the projection respectively towards the opposite end surfaces.

REFERENCES:
patent: 5526455 (1996-06-01), Akita et al.
patent: 5675683 (1997-10-01), Takahashi et al.
patent: 6779929 (2004-08-01), Savage, Jr.
patent: 7-134225 (1995-05-01), None

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