Highly refractive glass
A glass includes the following components in % by weight: 2-10 wt-% SiO2, 2-10 wt-% B2O3, 40-55 wt-% La2O3, 4-11 wt-% Gd2O3, 6-14 wt-% Nb2O5, 8-18.5 wt-% TiO2, and 5-11 wt-% ZrO2. The glass has a refractive index nd of at least 2.02, a sum of the portions of La2O3, Nb2O5, TiO2 and ZrO2 is at least 7...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
16.04.2024
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Subjects | |
Online Access | Get full text |
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Summary: | A glass includes the following components in % by weight: 2-10 wt-% SiO2, 2-10 wt-% B2O3, 40-55 wt-% La2O3, 4-11 wt-% Gd2O3, 6-14 wt-% Nb2O5, 8-18.5 wt-% TiO2, and 5-11 wt-% ZrO2. The glass has a refractive index nd of at least 2.02, a sum of the portions of La2O3, Nb2O5, TiO2 and ZrO2 is at least 76.5% by weight, and a weight ratio of a sum of the portions of La2O3, Nb2O5 and ZrO2 to the portion of TiO2 is at least 3.85:1. |
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Bibliography: | Application Number: US202117389865 |