公开(公告)号：US10294144B2

公开(公告)日：2019-05-21

申请号：US15979793

申请日：2018-05-15

Applicant: AGC Inc.

Inventor： Tatsuo Nagashima ,  Hiroyasu Miyazawa ,  Kenji Kitaoka

IPC: C03C3/32 ,  C03C4/10 ,  G02B1/00 ,  G01J5/08

Abstract: There is provided an optical glass having high infrared transmittance and being useful as an on-vehicle infrared sensor and the like. An optical glass including, in expression of atomic %: Ge+Ga; 6% to 30%; S+Se+Te; 50% to 85%; and Ti; 0.001% to 0.5%, wherein a wavelength (λT10%) at a long-wavelength side end in which infrared transmittance in a glass plate of the optical glass converted to a thickness of 1 mm becomes 10% is 12 μm or more.