Patent ID: 8110514
Filing Date: 2012-02-07
Classification: C03C

Abstract:
1. An optical glass that is an oxide glass and that comprises, by cationic %, 0 to 30% of Si 10 to 55% of B less than 5% of total of Li less than 5% of total of Mg 0 to 8% of Ba 0.1 to 15% of Zn 22 to 50% of La 0 to 20% of Gd 0 to 15% of Y 0 to 10% of Yb 0 to 20% of Zr 0.1 to 22% of Ti 0 to 20% of Nb 0 to 8% of Ta 0 to 5% of W 0 to 8% Ge 0 to 10% of Bi 0 to 10% of Al the cationic ratio of the content of Si