US3928229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent glass-ceramic laserable articles containing neodymium
Assignee: Schott AG
•
Filing: 1973-05-08
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Granted: 1975-12-23
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Expires: 1993-05-08
Abstract
Abstract Glass ceramics capable of luminescence or induced emission. An activator, e.g. neodymium, is used to impart said properties. The glasses can be used in lasers and masers.
Inventors
- 👤 Norbert Neuroth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:36
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17; C; C03; C03C; C03C10/00; C03C10/0018; C03C10/0027; C03C4/00; C03C4/0071; C03C4/12; C09; C09K; C09K11/00; C09K11/08; H01S3/05; H01S3/08; H01S3/08072
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
37 words
A LASERABLE ARTICLE CONSISTING OF TRANSPARENT GLASS CERAMIC AS HOST MATERIAL CONTAINING ACTIVATING IONS RENDERING THE ARTICLE CAPABLE OF INDUCED EMISSION, THE ACTIVATING IONS BEING NEODYMIUM IONS IN AMOUNT OF 0.1-10 WT. 5 CALCULATED ON THE OXIDE.
Claim 2
Dependent Claim
37 words
A LASERABLE ARTICLE CONSISTING OF TRANSPARENT GLASS CERAMIC AS HOST MATERIAL CONTAINING ACTIVATING IONS RENDERING THE ARTICLE CAPABLE OF INDUCED EMISSION, THE ACTIVATING IONS BEING NEODYMIUM IONS IN AMOUNT OF 0.1-10 WT. 5 CALCULATED ON THE OXIDE.
Claim 3
Dependent Claim
13 words
Article according to claim 1, containing 1-8 wt% neodymium calculated on the oxide.
Claim 4
Dependent Claim
13 words
Article according to claim 1, containing 1-5 wt% neodymium calculated on the oxide.
Claim 5
Dependent Claim
34 words
A laserable article consisting essentially of transparent Li2O-Al2O3-SiO2 glass ceramic as host material containing neodymium ions rendering the article capable of induced emission, the amount of neodymium being 0.1-10 wt.% calculated on the oxide.
Claim 6
Dependent Claim
34 words
A laserable article consisting essentially of transparent Li2O-Al2O3-SiO2 glass ceramic as host material containing neodymium ions rendering the article capable of induced emission, the amount of neodymium being 0.1-10 wt.% calculated on the oxide.
Claim 7
Dependent Claim
31 words
A laserable article consisting essentially of transparent glass ceramic as host material containing neodymium ions rendering the article capable of induced emission, the composition of the glass in weight % being:
Claim 8
Dependent Claim
31 words
A laserable article consisting essentially of transparent glass ceramic as host material containing neodymium ions rendering the article capable of induced emission, the composition of the glass in weight % being:
Claim 9
Dependent Claim
6 words
Article according to claim 5, having:
Claim 10
Dependent Claim
16 words
Article according to claim 5, the thermal expansion at 20*-30*C, X 107/*C, being 0.2 - 5.
Claim 11
Dependent Claim
13 words
Article according to claim 5, consisting essentially of the following composition in wt.%
Claim 12
Dependent Claim
6 words
Article according to claim 8, having:
Claim 13
Dependent Claim
17 words
Article according to claim 8, the thermal expansion coefficient at 20-30*C, X 107/*C, being 0.2 - 5.
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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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |