公开(公告)号：US20230348316A1

公开(公告)日：2023-11-02

申请号：US18213534

申请日：2023-06-23

Applicant: NIKON CORPORATION

Inventor： Tetsuya KOIDE

IPC: C03C3/17 ,  C03C3/19 ,  C03C3/21 ,  G02B1/00

CPC classification number: C03C3/17 ,  C03C3/19 ,  C03C3/21 ,  G02B1/00 ,  G03B17/14

Abstract: An optical glass contains: a P2O5 component of 30 to 60 mass % (exclusive of 30); an Al2O3 component of 2 to 10 mass % (exclusive of 2); a TiO2 component of 10 to 36 mass % (exclusive of 36); an Nb2O5 component of 0 to 5 mass %; a Ta2O5 component of 0 to 15 mass %; a Bi2O3 component of 0 to 5 mass % (exclusive of 5); and an Sb2O3 component of 0 to 1 mass %; and a BaO component of 1 to 20 mass %.

公开(公告)号：US20230331623A1

公开(公告)日：2023-10-19

申请号：US18196274

申请日：2023-05-11

Applicant: NIKON CORPORATION

Inventor： Tetsuya KOIDE

IPC: C03C3/17 ,  G02B21/02 ,  G02B13/00 ,  C03C3/19 ,  C03C3/21

CPC classification number: C03C3/17 ,  C03C3/19 ,  C03C3/21 ,  G02B13/006 ,  G02B21/02

Abstract: An optical glass comprising: by mass%, 20% or more and 55% or less of a content rate of P2O5; 10% or more and 40% or less of a content rate of TiO2; 0% or more and 30% or less of a content rate of Nb2O5; 0% or more and 2% or less of a content rate of Al2O3; 0% or more and 10% or less of a content rate of B2O3; 3% or more and 30% or less of a content rate of BaO; 0% or more and 30% or less of a content rate of Bi2O3; 0% or more and 20% or less of a content rate of Ta2O5; and 0% or more and 25% or less of a content rate of WO3, wherein a ratio of a total content rate of Li2O, Na2O and K2O (ΣA2O; where, A = Li, Na and K) to a content rate of TiO2 (ΣA2O/TiO2) is 0.10 or more and 0.65 or less, and a ratio of a content rate of TiO2 to a total content rate of P2O5, B2O3, and Al2O3 (TiO2/(P2O5 + B2O3 + Al2O3) ) is 0.25 or more and 0.85 or less.

公开(公告)号：US20250013028A1

公开(公告)日：2025-01-09

申请号：US18895958

申请日：2024-09-25

Applicant: NIKON CORPORATION

Inventor： Tetsuya KOIDE

IPC: G02B21/04 ,  C03C3/155 ,  G02B7/14 ,  G02B13/00

Abstract: An optical glass contains, by mol %, 40 to 85% of a content rate of TeO2, 10 to 40% of a content rate of ZnO, at least one of B2O3 and Bi2O3, and at least one of La2O3 and WO3.

公开(公告)号：US20230278914A1

公开(公告)日：2023-09-07

申请号：US18196280

申请日：2023-05-11

Applicant: NIKON CORPORATION

Inventor： Tetsuya KOIDE

IPC: C03C3/21 ,  C03C3/062

CPC classification number: C03C3/21 ,  C03C3/062 ,  G02B21/02

Abstract: An optical glass comprising: by mass %, 20% or more and 50% or less of a content rate of P2O5; 12.66% or more and 35% or less of a content rate of TiO2; 0% or more and 20% or less of a content rate of Nb2O5; and 5% or more and 30% or less of a content rate of Bi2O3, wherein a ratio of a content rate of TiO2 to a content rate of P2O5 (TiO2/P2O5) is 0.30 or more and 0.75 or less.

公开(公告)号：US20200255326A1

公开(公告)日：2020-08-13

申请号：US16859365

申请日：2020-04-27

Applicant: NIKON CORPORATION

Inventor： Tetsuya KOIDE

IPC: C03C3/17 ,  C03C3/19 ,  C03C3/21 ,  G02B1/00

Abstract: An optical glass contains: a P2O5 component of 30 to 60 mass % (exclusive of 30); an Al2O3 component of 2 to 10 mass % (exclusive of 2); a TiO2 component of 10 to 36 mass % (exclusive of 36); an Nb2O5 component of 0 to 5 mass %; a Ta2O5 component of 0 to 15 mass %; a Bi2O3 component of 0 to 5 mass % (exclusive of 5); and an Sb2O3 component of 0 to 1 mass %; and a BaO component of 1 to 20 mass %.

公开(公告)号：US20150065330A1

公开(公告)日：2015-03-05

申请号：US14520583

申请日：2014-10-22

Applicant: NIKON CORPORATION

Inventor： Tetsuya KOIDE ,  Hiroshi YAMAMOTO

IPC: C03C3/066 ,  C03C3/064 ,  G02B1/00

CPC classification number: C03C3/066 ,  C03C3/064 ,  G02B1/00 ,  G02B27/0062

Abstract: An optical glass includes, in weight percent: 15% to 36% of SiO2; 13% to 31% of B2O3; 4% to 27% of Al2O3; 0% to 19% of Ta2O5; 0% to 10% of ZrO2; and 0% to 10% of Nb2O5; wherein Ta2O5+Nb2O5+ZrO2≧7.1%; and has optical constants including a refractive index nd between 1.54 and less than 1.61 and an Abbe number vd in the range of 50 to 57; and wherein ΔPgy that denotes the anomalous dispersion is −0.004 or less.

Abstract translation: 光学玻璃包括重量百分比：15％至36％的SiO 2; 13％〜31％的B2O3; 4％〜27％的Al2O3; 0％〜19％的Ta2O5; 0％〜10％的ZrO2; 和0〜10％的Nb2O5; 其中Ta2O5 + Nb2O5 +ZrO2≥7.1％; 并且具有包括折射率nd在1.54和小于1.61之间的光学常数，并且阿贝数vd在50至57的范围内; 并且其中表示异常色散的＆Dgr; Pgy为-0.004或更小。