公开(公告)号：US20210171387A1

公开(公告)日：2021-06-10

申请号：US17181509

申请日：2021-02-22

Applicant: AGC Inc.

Inventor： Akira SHIBATA ,  Shinichi AMMA

IPC: C03C3/068

Abstract: Provided is an optical glass having a high refractive index and high light transmittance. The optical glass contains, in terms of mol % based on oxides, SiO2: 9.0% to 11.0%, B2O3: 22.0% to 24.0%, La2O3: 18.0% to 20.0%, and TiO2: 30.0% to 31.0%.

公开(公告)号：US20230250011A1

公开(公告)日：2023-08-10

申请号：US18120931

申请日：2023-03-13

Applicant: AGC Inc.

Inventor： Akira SHIBATA ,  Kenji KITAOKA

IPC: C03C3/21 ,  C03C3/12

CPC classification number: C03C3/21 ,  C03C3/122

Abstract: To provide glass having a high refractive index and a high transmittance. Glass (10) contains at least one component selected from the group consisting of TeO2, TiO2, WO3, Nb2O5, and Bi2O3, where Bi2O3 > 11.2% is satisfied, in mole percentage on an oxide basis, in which 3.78 ≤ Nb2O5/ (TeO2 + TiO2 + WO3 + Nb2O5 + Bi2O3) × 100 ≤ 19.2 is satisfied, and a total content of Fe, Cr, and Ni is smaller than 4 ppm by mass.

公开(公告)号：US20230048986A1

公开(公告)日：2023-02-16

申请号：US17972043

申请日：2022-10-24

Applicant: AGC Inc.

Inventor： Akira SHIBATA ,  Shinichi AMMA

IPC: C03C4/08 ,  C03C3/068

Abstract: Glass has a refractive index of 1.55 or more, and has, in an x-ray absorption fine structure (XAFS) analysis of platinum, a peak intensity ratio expressed by Amax/Aave of 1.13 or more, where Amax denotes a maximum value of a white line within an energy range of 13,270 eV to 13,290 eV, and Aave denotes an average absorption in an energy range of 13,290 eV to 13,390 eV.

公开(公告)号：US20210061703A1

公开(公告)日：2021-03-04

申请号：US17006199

申请日：2020-08-28

Applicant: AGC Inc.

Inventor： Akira SHIBATA ,  Shinichi AMMA

IPC: C03C3/068

Abstract: Provided is an optical glass having a high refractive index and high light transmittance. The optical glass contains, in terms of mol % based on oxides, SiO2: 9.0% to 11.0%, B2O3: 22.0% to 24.0%, La2O3: 18.0% to 20.0%, and TiO2: 30.0% to 31.0%.