US3880663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoroborate glass exhibiting fluorescence at 1.06 micrometers
Assignee: American Optical Corp
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Filing: 1973-01-11
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Granted: 1975-04-29
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Expires: 1993-01-11
Abstract
Abstract A novel glass exhibits fluorescence from trivalent neodymium ions at a wavelength of approximately 1.06 micrometers. The glass consists essentially of about 98 weight percent of a host glass and about 2 weight percent of a compound which contributes trivalent neodymium ions to the glass. The host glass is a fluoroborate and consists essentially of 10 to 60 mol percent of B2O3 and 40 to 90 mol percent of a fluoride glass modifier selected from the group consisting of BaF2, LaF3, AlF3, PbF2, and combinations thereof. The neodymium compound is selected from the group consisting of Nd2O3and NdF3.
Inventors
- 👤 Robert R Shaw
- 👤 Elias Snitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:09
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/0071; C03C3/00; C03C3/12; C03C3/23; C03C4/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
55 words
A FLOROBORATE GLASS WHICH EXHIBITS FLUORESCENCE AT A WAVELENGTH OF 1.06 MICROMETERS CONSISTING ESSENTIALLY OF ABOUT 98 WEIGHT PERCENT OF A HOST GLASS CONSISTING ESSENTIALLY OF 10 TO 50 MOL PERCENT OF B2O3, 25 TO 45 MOL PERCENT OF ALF2 AND 25 TO 45 MOL PERCENT OF PBF2 AND APPROXIMATELY 2 WEIGHT PERCENT OF NDF3.
Claim 2
Dependent Claim
55 words
A FLOROBORATE GLASS WHICH EXHIBITS FLUORESCENCE AT A WAVELENGTH OF 1.06 MICROMETERS CONSISTING ESSENTIALLY OF ABOUT 98 WEIGHT PERCENT OF A HOST GLASS CONSISTING ESSENTIALLY OF 10 TO 50 MOL PERCENT OF B2O3, 25 TO 45 MOL PERCENT OF ALF2 AND 25 TO 45 MOL PERCENT OF PBF2 AND APPROXIMATELY 2 WEIGHT PERCENT OF NDF3.
Claim 3
Dependent Claim
21 words
A fluoroborate glass according to claim 1, wherein the host glass has essentially the following composition as given in mol percent
Claim 4
Dependent Claim
21 words
A fluoroborate glass according to claim 1, wherein the host glass has essentially the following composition as given in mol percent
Claim 5
Dependent Claim
21 words
A fluoroborate glass according to claim 1, wherein the host glass has essentially the following composition as given in mol percent
Claim 6
Dependent Claim
21 words
A fluoroborate glass according to claim 1, wherein the host glass has essentially the following composition as given in mol percent
Claim 7
Dependent Claim
21 words
A fluoroborate glass according to claim 1, wherein the host glass has essentially the following composition as given in mol percent
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |