公开(公告)号：US20240116798A1

公开(公告)日：2024-04-11

申请号：US18538353

申请日：2023-12-13

Applicant: NIKON CORPORATION

Inventor： Shuhei TAKASU ,  Kohei YOSHIMOTO

IPC: C03C3/068 ,  G02B1/02

CPC classification number: C03C3/068 ,  G02B1/02 ,  C03C2201/10 ,  C03C2201/3417 ,  C03C2201/42

Abstract: An optical glass comprising: by cation %, more than 0% and up to 40% of a content rate of La3+; 15% to 65% of a content rate of Ti4+; and more than 0% and up to 20% of a content rate of Zr4+; wherein a refractive index (nd) with respect to a d-line is from 2.00 to 2.35.