OPTICAL GLASS AND OPTICAL ELEMENT, CERTIFIED LINE, OPTICAL SYSTEM, STANDARD LINE FOR CAMERA AND OPTICAL PREPARATION

摘要

An optical glass contains: a P₂O₅component of 30 to 60 mass% (exclusive of 30); an Al₂O₃component of 2 to 10 mass% (exclusive of 2); a TiO₂component of 10 to 36 mass% (exclusive of 36); an Nb₂O₅component of 0 to 5 mass%; a Ta₂O₅component of 0 to 15 mass%; a Bi₂O₃component of 0 to 5 mass% (exclusive of 5); and an Sb₂O₃component of 0 to 1 mass%.