1980-09-18
1984-02-07
Lee, John D.
G02B 726
Patent
active
RE0315150
ABSTRACT:
The retainer sleeve of a three piece ferrule suitable for very small diameter optical fibers has an outside diameter threaded portion at the closed end so that, after the ferrule and optical fiber have been assembled, an outer sleeve, having a correspondingly threaded inside diameter, can be used to adjust the optical fiber end to be positioned flush with the end face of the ferrule during assembly. The design of the outside threaded sleeve for retaining the connector of two fibers to be connected is improved by inserting a shim sleeve of molded, pliable material having a "D"-shaped inside diameter to apply force to the outside diameter of the ferrules when inserted therein for reliable, concentric snug-fit.
REFERENCES:
patent: Re26994 (1970-12-01), Fuller
patent: 3936145 (1976-02-01), McCartney
patent: 3946467 (1976-03-01), Lukas
patent: 3982815 (1976-09-01), Nakayama
patent: 4193665 (1980-03-01), Arnold
R. L. Thiel, R. E. Love, R. L. Smith, "In-Line Connectors for Multi-Mode Optical Waveguide Bundles," Applied Optics, vol. 13, No. 2, Feb. 1974, pp. 240-242.
Hewlett--Packard Company
Lee John D.
Wong Edward Y.
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