| 摘要 |
<p>Disclosed is an optical glass which has an optical constant at which the Abbe number (?d) and the partial dispersion ratio (?g, F) satisfy the relation of ?g, F = -0.0058 × ?d + 0.7539 when ?d = 25, and the relation of ?g, F = -0.0020 × ?d + 0.6589 when ?d > 25. The optical glass contains, in mol% based on oxides, more than 0% but 50% or less of a B2O3 component and 15-70% of a TeO2 component, at a B2O3/TeO2 ratio of more than 0 but less than 2.0.</p> |
