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US 4,380,588 AGranted
Glass for infrared ray-transmitting optical fibers and optical fibers formed from said glass
AssigneeNippon Telegraph & Telephone Public Corporation
InventorsSeiko Mitachi, Shuichi Shibata, Terutoshi Kanamori, Toyotaka Manabe, Mitsuho Yasu
Life of this patent
Estimating the term…
Abstract
An infrared ray-transmitting glass composition for optical fibers consisting essentially of 28 mol % to 38 mol % of BaF.sub.2, 2 mol % to 7 mol % of GdF.sub.3 and 58 mol % to 69 mol % of ZrF.sub.4, and optical fibers comprising said glass composition.
Claims8
An infrared ray-transmitting glass composition for optical fibers consisting essentially of 28 mol% to 38 mol% of BaF.sub.2, 2 mol% to 7 mol% of GdF.sub.3 and 58 mol% to 69 mol% of ZrF.sub.4.
Dependencies are inferred from the claim text.