US2006270544A1PendingUtilityA1
Optical colored glass, its use, and an optical long-pass cutoff filter
Est. expiryAug 22, 2021(expired)· nominal 20-yr term from priority
C03C 3/115C03C 4/02
52
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Claims
Abstract
The invention concerns an optical colored glass with a composition (in percent by weight based on oxide) of SiO 2 30-75; K 2 O 5-35; B 2 O 3 >4-17; ZnO 5-37; F 0.01-10; CdO 0.1-1, S+Se+Te 0.1-1.5 as well as the use of this glass as a long-pass cutoff filter.
Claims
exact text as granted — not AI-modified1 . An optical colored glass composition comprising: (in percent by weight based on oxide)
SiO 2
30-75
K 2 O
5-35
B 2 O 3
>4-17
ZnO
5-37
F
0.01-10
CdO
0.1-1
S + Se + Te
0.1-1.5;
and
said composition being substantially free of TiO 2 and Al 2 O 3 .
2 . The optical colored glass composition of claim 1 comprising: (in percent by weight based on oxide)
SiO 2
30-75
K 2 O
5-35
B 2 O 3
>4-17
ZnO
5-30
F
0.01-10
CdO
0.1-1
S + Se + Te
0.1-1.5;
and
said composition being substantially free of TiO 2 and Al 2 O 3 .
3 . The optical colored glass composition of claim 1 comprising: (in percent by weight based on oxide)
SiO 2
40-65
K 2 O
15-29
B 2 O 3
5-16
ZnO
9-30
F
0.01-10
CdO
0.1-1
S + Se + Te
0.1-1.1;
and
said composition being substantially free of TiO 2 and Al 2 O 3 .
4 . The optical colored glass composition of claim 1 , further comprising common refining substances in common amounts.
5 . The optical colored glass composition of claim 1 further comprising: (in percent by weight based on oxide)
Na2O
0-20
MgO
0-20
GaO
0-20
with GaO + MgO
0-20
Al 2 O 3
0-10
6 . The optical colored glass composition of claim 1 further comprising: (in percent by weight based on oxide)
SrO
0-<10
BaO
0-<10
La 2 O 3
0-5
Nb 2 O 5
0-5
Ta 2 O 5
0-5
CeO 2
0-5
ZrO 2
0-5
P 2O 5
0-10.
7 . The optical colored glass composition of claim 1 further comprising:
F
1-10
MgO + CaO + SrO + BaO
0-<3
and
8 . The optical colored glass composition of claim 5 further comprising:
MgO + CaO + SrO + BaO
>3; and
and F
0.01-<1.
9 . The optical colored glass composition of claim 1 , comprising an absorption edge (=edge wavelength λ c ) between 390 nm and 850 nm.
10 . An optical long-pass cutoff filter comprising the optical colored glass of claim 1 .
11 . An optical long-pass cutoff filter consisting of the optical colored glass of claim 1 .
12 . The optical colored glass composition of claim 2 comprising: (in percent by weight based on oxide)
SiO 2
40-65
K 2 O
15-29
B 2 O 3
5-16
ZnO
9-30
F
0.01-10
CdO
0.1-1
S + Se + Te
0.1-1;
and
said composition being substantially free of TiO 2 and Al 2 O 3 .
13 . The optical colored glass composition of claim 2 further comprising: (in percent by weight based on oxide)
Na2O
0-20
MgO
0-20
CaO
0-20
with GaO + MgO
0-20.
Al 2 O 3
0-10
14 . The optical colored glass composition of claim 3 further comprising: (in percent by weight based on oxide)
Na2O
0-20
MgO
0-20
GaO
0-20
with GaO + MgO
0-20.
Al 2 O 3
0-10
15 . The optical colored glass composition of claim 2 further comprising: (in percent by weight based on oxide)
SrO
0-<10
BaO
0-<10
La 2 O 3
0-5
Nb 2 O 5
0-5
Ta 2 O 5
0-5
CeO 2
0-5
ZrO 2
0-5
P 2 O 5
0-10.
16 . The optical colored glass composition of claim 3 further comprising: (in percent by weight based on oxide)
SrO
0-<10
BaO
0-<10
La 2 O 3
0-5
Nb 2 O 5
0-5
Ta 2 O 5
0-5
CeO 2
0-5
ZrO 2
0-5
P 2 O 5
0-10.
17 . The optical colored glass in accordance with composition of claim 5 further comprising: (in percent by weight based on oxide)
SrO
0-<10
BaO
0-<10
La 2 O 3
0-5
Nb 2 O 5
0-5
Ta 2 O 5
0-5
CeO 2
0-5
ZrO 2
0-5
P 2 O 5
0-10.
18 . The optical colored glass composition of claim 6 further comprising:
MgO + CaO + SrO + BaO
>3 and
and F
0.01-<1.
19 . The optical colored glass composition of claim 2 , further comprising an absorption edge (=edge wavelength λ c ) between 390 nm and 850 nm.
20 . The optical colored glass composition of claim 3 , further comprising an absorption edge (=edge wavelength λ c ) between 390 nm and 850 nm.
21 . An optical colored glass composition comprising: (in percent by weight based on oxide)
SiO 2
30-75
K 2 O
5-35
B 2 O 3
>4-17
ZnO
5-37
F
>2
CdO
0.1-1
S + Se + Te
0.1-1.5.
22 . The optical colored glass composition of claim 21 , comprising: (in percent by weight based on oxide)
SiO2
30-75
K20
5-35
B203
>4-17
ZnO
5-37
F
>6.73
CdO
0.1-1
S+ Se + Te
0.1-1.5.Join the waitlist — get patent alerts
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