Glass for optical fibers
AssigneeNippon Telegraph & Telephone Public Corporation
InventorsSeiko Mitachi, Shuichi Shibata, Terutoshi Kanamori, Toyotaka Manabe, Mitsuho Yasu
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Abstract
Glass for optical fibers is made of material of a binary system containing a fluoride selected from BaF.sub.2, SrF.sub.2 CaF.sub.2 and PbF.sub.2 and another fluoride selected from AlF.sub.3 and ZrF.sub.4.
Claims8
Glass for optical fibers made of material of binary system consisting essentially of more than 20 mol % and less than 80 mol % of a fluoride selected from a first group of BaF.sub.2, SrF.sub.2, CaF.sub.2 and PbF.sub.2 and more than 20 mol % and less than 80 mol % of another fluoride selected from a second group of AlF.sub.3 and ZrF.sub.4.
Dependencies are inferred from the claim text.