US4075120A
Expired / Lapsed
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Laser phosphate glass compositions
Assignee: Darby Bank and Trust Co
•
Filing: 1975-05-14
•
Granted: 1978-02-21
•
Expires: 1995-05-14
Abstract
Abstract Laser phosphate glass compositions are provided by combining constituent elements at defined amounts to form compositions which provide a balance of properties to the glass, especially high gain and low n 2 .
Inventors
- 👤 John D. Myers
- 👤 Charles S. Vollers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:46
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/0071; C03C3/00; C03C3/12; C03C3/16; C03C3/17
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
177 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5
35 to 65
R.sub.2 O.sub.3
0.01 to 15
RO 5 to 30
R.sub.2 O 5 to 40
Nd.sub.2 O.sub.3
0.01 to 7
______________________________________ wherein R 2 O 3 is selected from the group consisting of Al 2 O 3 , La 2 O 3 , Y 2 O 3 , Tm 2 O 3 , B 2 O 3 , Er 2 O 3 and mixtures thereof, wherein RO is selected from the alkaline earth oxide group consisting of BaO, BeO, MgO, SrO, CaO and mixtures thereof, wherein R 2 O is selected from the alkali metal oxide group consisting of Li 2 O, K 2 O, Na 2 O, Rb 2 O, and mixtures thereof and wherein a solarization inhibiting oxide is present in an amount sufficient to prevent discoloration, and wherein said solarization inhibiting oxide is selected from the group consisting of TiO 2 , Sb 2 O 3 , CeO 2 , SiO 2 and mixtures thereof.
Claim 2
Dependent Claim
177 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5
35 to 65
R.sub.2 O.sub.3
0.01 to 15
RO 5 to 30
R.sub.2 O 5 to 40
Nd.sub.2 O.sub.3
0.01 to 7
______________________________________ wherein R 2 O 3 is selected from the group consisting of Al 2 O 3 , La 2 O 3 , Y 2 O 3 , Tm 2 O 3 , B 2 O 3 , Er 2 O 3 and mixtures thereof, wherein RO is selected from the alkaline earth oxide group consisting of BaO, BeO, MgO, SrO, CaO and mixtures thereof, wherein R 2 O is selected from the alkali metal oxide group consisting of Li 2 O, K 2 O, Na 2 O, Rb 2 O, and mixtures thereof and wherein a solarization inhibiting oxide is present in an amount sufficient to prevent discoloration, and wherein said solarization inhibiting oxide is selected from the group consisting of TiO 2 , Sb 2 O 3 , CeO 2 , SiO 2 and mixtures thereof.
Claim 3
Dependent Claim
46 words
The laser glass as defined in claim 1, wherein the following ingredients are in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 40 - 55
R.sub.2 O.sub.3 0.1 - 10
RO 7 - 25
R.sub.2 O 20 - 35
Nd.sub.2 O.sub.3 0.1 - 3.0
______________________________________
Claim 4
Dependent Claim
17 words
The laser glass as defined in claim 1, wherein said solarization inhibiting oxide is SiO 2 .
Claim 5
Dependent Claim
25 words
The laser glass as defined in claim 1, wherein the glass is in the form of rods and wherein said rods possess good optical qualities.
Claim 6
Dependent Claim
25 words
The laser glass as defined in claim 1, wherein the glass is in the form of disks and wherein said disks possess good optical qualities.
Claim 7
Dependent Claim
25 words
The laser glass as defined in claim 1, wherein the glass is in the form of plates and wherein said plates possess good optical qualities.
Claim 8
Dependent Claim
25 words
The laser glass as defined in claim 1, wherein the glass is in the form of fibers and wherein said fibers possess good optical qualities.
Claim 9
Dependent Claim
30 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 55.0
Li.sub.2 O 30.0
CaO 10.0
Al.sub.2 O.sub.3 4.3
Nd.sub.2 O.sub.3 0.7
______________________________________
Claim 10
Dependent Claim
30 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 55.0
Li.sub.2 O 30.0
CaO 10.0
Al.sub.2 O.sub.3 4.3
Nd.sub.2 O.sub.3 0.7
______________________________________
Claim 11
Dependent Claim
30 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 50.0
K.sub.2 O 30.0
BaO 15.0
Al.sub.2 O.sub.3 4.3
Nd.sub.2 O.sub.3 0.7
______________________________________
Claim 12
Dependent Claim
30 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 50.0
K.sub.2 O 30.0
BaO 15.0
Al.sub.2 O.sub.3 4.3
Nd.sub.2 O.sub.3 0.7
______________________________________
Claim 13
Dependent Claim
30 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 50.0
K.sub.2 O 31.5
MgO 15.0
Al.sub.2 O.sub.3 3.0
Nd.sub.2 O.sub.3 0.5
______________________________________
Claim 14
Dependent Claim
30 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 50.0
K.sub.2 O 31.5
MgO 15.0
Al.sub.2 O.sub.3 3.0
Nd.sub.2 O.sub.3 0.5
______________________________________
Claim 15
Dependent Claim
31 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 49.3
Li.sub.2 O 33.5
CaO 10.9
Al .sub.2 O.sub.3
5.0
Nd.sub.2 O.sub.3 1.3
______________________________________
Claim 16
Dependent Claim
31 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 49.3
Li.sub.2 O 33.5
CaO 10.9
Al .sub.2 O.sub.3
5.0
Nd.sub.2 O.sub.3 1.3
______________________________________
Claim 17
Dependent Claim
32 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 50.0
Li.sub.2 O 30.0
CaO 10.0
Al.sub.2 O.sub.3 4.3
Nd.sub.2 O.sub.3 0.7
SiO.sub.2 5.0
______________________________________
Claim 18
Dependent Claim
32 words
A laser glass comprising the following ingredients in mole percentages: ______________________________________
Ingredient Mole Percent
______________________________________
P.sub.2 O.sub.5 50.0
Li.sub.2 O 30.0
CaO 10.0
Al.sub.2 O.sub.3 4.3
Nd.sub.2 O.sub.3 0.7
SiO.sub.2 5.0
______________________________________
References Cited (Backward Citations)
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Cited
US3471409A
Cited
US3549554A
Cited
US3677960A
Cited
US3846142A
Cited
US3979322A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |