OPTICAL GLASS SHOWING RESISTANCE TO GAMMA-IRRADIATION EFFECT Russian patent published in 1994 - IPC

Abstract RU 2011643 C1

FIELD: glasses. SUBSTANCE: optical glass has, wt. -% : silicon oxide (SiO₂) 20-25; boron oxide (B₂O₃) 15-18; lanthanum oxide (La₂O₃) 12-16; barium oxide (BaO) 40-45; cerium oxide (CrO₂) 0.3-0.5; antimony oxide (Sb₂O₃) 0.3-0.5; tin chloride (SnCl₂) 0.5-0.7. Ratio SnCl₂/Sb₂O₃ = 1.4-1.66. Transparency at λ = 450 nm is 77-79% , at l = 550 nm is 94-96% . EFFECT: enhanced quality of glass. 1 dwg, 1 tbl

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RU 2 011 643 C1

Authors

Molev V.I.

Zhukovets Zh.G.

Pechneva O.P.

Dates

1994-04-30—Published

1991-06-03—Filed