US5093288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thallium germanate, tellurite, and antimonite glasses
Assignee: Corning Inc
•
Filing: 1990-11-28
•
Granted: 1992-03-03
•
Expires: 2010-11-28
Abstract
Abstract This invention relates to thallium germanate, tellurite, and antimonite glasses possessing high optical nonlinearity, as well as good visible and infrared transmission, making them suitable materials for the fabrication of active optical devices.
Inventors
- 👤 Bruce G. Aitken
- 👤 Douglas W. Hall
- 👤 Mark A. Newhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:44
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/3555; C; C03; C03C; C03C13/00; C03C13/04; C03C13/045; C03C13/046; C03C13/048; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/12; C03C3/122; C03C3/253
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A glass exhibiting high optical nonlinearity along with high transmission in the visible and infrared portions of the radiation spectrum selected from the groups consisting essentially, expressed in terms of cation percent on the oxide basis, of: 15-60% TlO 0 .5, 10-45% BiO 1 .5, 5-40% GeO 2 , and 0.5-10% GaO 1 .5, wherein TlO 0 .5 +BiO 1 .5 ≧60% and GaO 1 .5 +GeO 2 ≧15%, the sum of TlO 0 .5 +BiO 1 .5 +GeO 2 +GaO 1 .5 constituting at least 85% of the total composition.
Claim 2
Dependent Claim
91 words
A glass exhibiting high optical nonlinearity along with high transmission in the visible and infrared portions of the radiation spectrum selected from the groups consisting essentially, expressed in terms of cation percent on the oxide basis, of: 15-60% TlO 0 .5, 10-45% BiO 1 .5, 5-40% GeO 2 , and 0.5-10% GaO 1 .5, wherein TlO 0 .5 +BiO 1 .5 ≧60% and GaO 1 .5 +GeO 2 ≧15%, the sum of TlO 0 .5 +BiO 1 .5 +GeO 2 +GaO 1 .5 constituting at least 85% of the total composition.
Claim 3
Dependent Claim
40 words
A glass according to claim 1 which also contains up to 15 cation percent total of at least one member of the group in the indicated proportion of up to 10% SiO 2 and up to 5% TeO 2 .
Claim 4
Dependent Claim
48 words
A glass according to claim 1 consisting essentially of: 38-60% TlO 0 .5, 10-45% BiO 1 .5, 5-30% GeO 2 , and 5-10% GaO 1 .5, the sum of TlO 0 .5 +BiO 1 .5 +GeO 2 +GaO 1 .5 constituting at least 90% of the total composition.
Claim 5
Dependent Claim
38 words
The glass according to claim 3, which also contains up to 10% total of at least one member of the group in the indicated proportion of up to 10% SiO 2 and up to 5% TeO 2 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |