US3736524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser media containing fluorinated alchols
Assignee: Eastman Kodak Co
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Filing: 1971-06-01
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Granted: 1973-05-29
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Expires: 1991-06-01
Abstract
Abstract Certain fluorinated alcohols are useful as solvents for fluorescing dyes in the formation of lasing media.
Inventors
- 👤 K Drexhage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:21
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/20; H01S3/213
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
A dye laser as described in claim 1 wherein said solvent contains from about 90 to about 70 percent by volume of water.
Claim 2
Dependent Claim
30 words
A dye laser as described in claim 1 wherein said dye is present in a concentration from about 10 7 moles per liter to about 10 1 moles per liter.
Claim 3
Dependent Claim
31 words
A dye laser as described in claim 1 wherein said dye is selected from the group consisting of a xanthene dye, a coumarin dye, a pyrylium dye and a cyanine dye.
Claim 4
Dependent Claim
28 words
A dye laser as described in claim 1 wherein said fluorinated alcohol is selected from the group consisting of a fluorinated aliphatic alcohol and a fluorinated aryl alcohol.
Claim 5
Dependent Claim
32 words
A dye laser as described in claim 1 wherein said alcohol is selected from the group consisting of trifluoroethanol, trifluoroethanediol, tetrafluoropropanol, hexafluoroisopropanol, hexafluoroisopropanediol, hexafluorobutanol, hexafluoroisobutanol, hexafluoropentanol, trifluorophenol, trifluoromethylphenol, trifluororesorcinol, trifluorophenylcarbinol, and trifluoromethylphenylcarbinol.
Claim 6
Dependent Claim
70 words
A dye laser having a reservoir means containing a laser dye solution and operably coupled therewith a pumping energy source for exciting and causing an inversion of energy state of laser dye solution to produce stimulated emission thereof, said laser dye solution comprising a lasing concentration of a fluorescing dye in a solvent system comprising from about 10 to about 30 percent by volume of a fluorinated lower aliphatic alcohol.
Claim 7
Dependent Claim
23 words
A dye laser as described in claim 7 wherein the alcohol is selected from the group consisting of trifluoroethanol, tetrafluoropropanol, hexafluoroisopropanol and hexafluoroisopropanediol.
Claim 8
Dependent Claim
66 words
In a method of producing coherent dye laser emission by optically pumpinG a dye solution to cause an inversion of energy states of said solution to produce stimulated emission thereof, said solution containing between about 10 1 to about 10 7 moles of a fluorescing dye per liter of solvent, the improvement which comprises using a solvent for said fluorescing dye which comprises a fluorinated alcohol.
References Cited (Backward Citations)
US3521187A
Cited
US3600600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |