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US 5,295,213 AGranted
Optical connector with ion exchange hardening
AssigneesNEC Corporation, Nippon Electric Glass Co., Ltd.
InventorsTetsuji Ueda, Kazuhiko Kurata, Nobuo Funabiki, Masayo Hada
Life of this patent
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Abstract
A ferrule for an optical connector is of glass which is strengthened by ion-exchange.
Claims5
An optical connector, comprising:
- a glass ferrule having a center bore into which an optical fiber is inserted to be fixed;
- wherein said glass ferrule is constructed of a glass material containing alkali metal and has been subjected to a low temperature type ion-exchange treatment at a temperature of approximately 400.degree. C. to increase its mechanical strength.
An optical connector comprising:
- a glass ferrule having a center bore into which an optical fiber is inserted to be fixed;
- and
- wherein said glass ferrule is strengthened in mechanical strength by ion-exchange, said glass ferrule being constructed of borosilicate glass and is shaped by processes of heating and drawing a glass preform, cutting a drawn glass preform, and dipping a cut ferrule into fused salt prepared by heating and maintaining powders of potassium nitrate at a temperature of approximately 400.degree. C.
Dependencies are inferred from the claim text.