公开(公告)号：US20230192528A1

公开(公告)日：2023-06-22

申请号：US18086157

申请日：2022-12-21

Applicant: Schott AG

Inventor： Simone Monika Ritter ,  Sebastian Leukel ,  Benedikt Ziebarth ,  Stefanie Hansen

IPC: C03C3/068 ,  C03C13/04 ,  G02B1/02

CPC classification number: C03C3/068 ,  C03C13/045 ,  G02B1/02

Abstract: An optical glass has a refractive index nd of more than 2.10 and includes at least TiO2, NbO2.5, LaO1.5, SiO2, and B2O3. The glass has the following features: a cation parameter K of 1.8 0 mol % and the proportion of SiO2>0 mol %; and a temperature Tmax≤1330° C.

公开(公告)号：US20230192527A1

公开(公告)日：2023-06-22

申请号：US18086026

申请日：2022-12-21

Applicant: Schott AG

Inventor： Jens Ulrich Thomas ,  Frank-Thomas Lentes ,  Simone Monika Ritter ,  Benedikt Ziebarth

IPC: C03C3/068 ,  C03C4/00

CPC classification number: C03C3/068 ,  C03C4/0092 ,  C03C2204/00

Abstract: A glass article has a refractive index nG≥1.95 and an R-number in a range of from 0.900 to 1.050. The R-number is calculated according to the following formula:




R
=


(


n
G

-
1

)

⁢


(



ln
[




λ
G
2

-

λ
min
2




λ
G
2

-

λ
max
2



·


λ
max
2


λ
min
2



]


42
⁢


ln
[




λ
B
2

-

λ
min
2




λ
B
2

-

λ
max
2



·



λ
R
2

-

λ
max
2




λ
R
2

-

λ
min
2




]



+

1
2.8


)

.






λR=656 nm, λG=587 nm and λB=486 nm, λmin=33 nm, and nG is a refractive index of the glass article at a wavelength of 587 nm.