US3869405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass exhibiting fluorescence at 1.06 micrometers
Assignee: American Optical Corp
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Filing: 1973-01-11
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Granted: 1975-03-04
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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 Nd2(SO4)3. The host glass being either 90 mol percent ZnCl2 and 10 mol percent Na2SO4 or 60 mol percent ZnSO4 and 40 mol percent Rb2SO4.
Inventors
- 👤 Robert R Shaw
- 👤 Elias Snitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:41
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17; C; C03; C03C; C03C3/00; C03C3/32; C03C4/00; C03C4/0071
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
A SULFATE GLASS WHICH EXHIBITS FLUORESCENCE AT A WAVELENGTH OF 1.06 UM CONSISTING ESSENTIALLY OF 98 WEIGHT PERCENT OF A HOST GLASS WHICH CONSISTS ESSENTIALLY OF 90 MOL PERCENT OF THE GLASS FORMER ZNCL2 AND 10 MOL PERCENT OF THE GLASS MODIFIER NA2SO4 AND 2 WEIGHT PERCENT OF ND2(SO4)3.
Claim 2
Dependent Claim
49 words
A SULFATE GLASS WHICH EXHIBITS FLUORESCENCE AT A WAVELENGTH OF 1.06 UM CONSISTING ESSENTIALLY OF 98 WEIGHT PERCENT OF A HOST GLASS WHICH CONSISTS ESSENTIALLY OF 90 MOL PERCENT OF THE GLASS FORMER ZNCL2 AND 10 MOL PERCENT OF THE GLASS MODIFIER NA2SO4 AND 2 WEIGHT PERCENT OF ND2(SO4)3.
Claim 3
Dependent Claim
49 words
A sulfate glass which exhibits fluorescence at a wavelength of 1.06 Mu m consisting essentially of 98 weight percent of a host glass which consists essentially of 60 mol percent of the glass former ZnSO4 and 40 mol percent of the glass modifier Rb2SO4 and 2 weight percent Nd2(SO4)3.
Claim 4
Dependent Claim
49 words
A sulfate glass which exhibits fluorescence at a wavelength of 1.06 Mu m consisting essentially of 98 weight percent of a host glass which consists essentially of 60 mol percent of the glass former ZnSO4 and 40 mol percent of the glass modifier Rb2SO4 and 2 weight percent Nd2(SO4)3.
References Cited (Backward Citations)
US3717583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |