US5037200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser-operated detector
Assignee: Tosoh Corp
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Filing: 1990-07-03
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Granted: 1991-08-06
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Expires: 2010-07-03
Abstract
Abstract In a laser-operated detecting device, the light source of a laser beam applied to a specimen under test is a tunable laser whose wavelength can be continuously tuned in a certain range. The detecting device is realized as a high speed liquid chromatography fluorescence detector, a high speed liquid chromatography Raman detector, a laser Raman spectroscopic measuring device, a coherent anti-Stokes Raman measuring device, or a microscopic Raman measuring device.
Inventors
- 👤 Nobuhiro Kodama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; G; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/17; G01N2021/1738; G01N21/65; G01N2021/653; G01N21/64; G01N30/00; G01N30/02; G01N30/62; G01N30/74
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
38 words
In a detector device, a tunable laser source emitting a light beam whose wavelength matches a responsive wavelength band of a specimen under test, said tunable laser source comprising: a titanium-doped sapphire laser having continuously variable wavelength capability.
Claim 2
Dependent Claim
38 words
In a detector device, a tunable laser source emitting a light beam whose wavelength matches a responsive wavelength band of a specimen under test, said tunable laser source comprising: a titanium-doped sapphire laser having continuously variable wavelength capability.
Claim 3
Dependent Claim
29 words
A detecting device as claimed in claim 1, in which the amount of doped titanium in sapphire is in a range of 0.01 atomic % to 0.5 atomic %.
Claim 4
Dependent Claim
26 words
A detecting device as claimed in claim 1, in which said tunable solid laser is made up of a titanium-doped sapphire and a non-linear optical material.
Claim 5
Dependent Claim
29 words
A detecting device as claimed in claim 3, in which the amount of doped titanium in sapphire is in a range of 0.01 atomic %, to 0.5 atomic %.
Claim 6
Dependent Claim
28 words
A detecting device as claimed in claim 3, in which said non-linear optical material is selected from the group comsisting of a β-barium borate, lithium niobate and methanitroaniline.
Claim 7
Dependent Claim
23 words
A detecting device as claimed in claim 1 or 3, in which said detecting device is a high speed liquid chromatography fluorescence detector.
Claim 8
Dependent Claim
24 words
A detecting device as claimed in claim 1 or 3, in which said detecting device is a high speed liquid chromatography Raman spectra detector.
Claim 9
Dependent Claim
23 words
A detecting device as claimed in claim 1 or 3, in which said detecting device is a laser Raman spectro scopic measuring device.
Claim 10
Dependent Claim
22 words
A detecting device as claimed in claim 1 or 3, in which said detecting device is a coherent anti-Stokes Raman measuring device.
Claim 11
Dependent Claim
21 words
A detecting device as claimed in claim 1 or 3, in which said detecting device is a microscopic Raman measuring device.
References Cited (Backward Citations)
EP0238142A2
Cited
US4836953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-05 | 1995-02-04 | 1995-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-05 | 1999-02-04 | 1999-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-05 | 2003-02-04 | 2003-08-06 | $7700.00 | Window Closed / Lapsed |