Optical branching and coupling device using an aspherical lens

Details Optical branching and coupling device using an aspherical lens Optical branching and coupling device using an aspherical lens

1995-03-07

1997-09-23

Ullah, Akm E.

Optical waveguides

With optical coupler

Input/output coupler

G02B 632

Patent

active

056713053

ABSTRACT:
Disclosed is an optical branching and coupling device of high quality which is prevented from malfunction, corrosion and deterioration due to condensation on optical components incorporated therein by virtue of perfect sealing. The optical branching and coupling device including a housing provided with an aperture, optical instruments, associated with the housing, for branching, coupling, transmitting and receiving optical information input to the device, and an aspherical lens inserted into the aperture and fixed thereto by hermetic sealing with a glass material, the aspherical lens being adapted to connect at an end face thereof with at least one optical fiber.

REFERENCES:
patent: 4326771 (1982-04-01), Henry et al.
patent: 4423922 (1984-01-01), Porter
patent: 4564260 (1986-01-01), Dirmeyer et al.
patent: 4753508 (1988-06-01), Meuleman
patent: 5050953 (1991-09-01), Anderson et al.
patent: 5255333 (1993-10-01), Althaus et al.

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