US3594083A
Expired / Lapsed
US
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Spectrometer
Assignee: Smiths Detection Toronto Ltd
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Filing: 1969-07-07
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Granted: 1971-07-20
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Expires: 1989-07-07
Abstract
Abstract A scanning spectrometer having means for scanning entrance slit images across an exit slit. A predetermined spectrum is recorded photographically or magnetically, and means synchronized with the scanning means is provided for obtaining correlation signals from the recorded spectrum. The correlation signals are precisely synchronized with the scanning means, and are used for correlation with the light passing through the exit slit.
Inventors
- 👤 Anthony Rene Barringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:28
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/457; G01J2003/2866
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
51 words
A spectrometer as claimed in claim 1 wherein said scanning means comprises a rotatable optical element positioned in the path of the light passing through the spectrometer so that rotation of the optical element causes the positions of said slit images to be varied, and means for rotating said optical element.
Claim 2
Dependent Claim
62 words
A spectrometer as claimed in claim 2 wherein said spectrum characterizing means includes a transparent device rigidly coupled to said optical element, said device having a pattern of opaque lines with transparent spaces between the lines, said pattern being representative of said characteristic spectra and means for deriving said correlation signals from said pattern of lines as said optical element is rotated.
Claim 3
Dependent Claim
53 words
A spectrometer as claimed in claim 2 wherein said spectrum characterizing means further includes a lamp positioned on one side of said device and a photodetector positioned on the other side of said device so that the light shining upon the device from the lamp is modulated as said optical element is rotated.
Claim 4
Dependent Claim
22 words
A spectrometer as claimed in claim 4 wherein said correlating means includes an electronic gate which is controlled by said correlation signals.
Claim 5
Dependent Claim
30 words
A spectrometer as claimed in claim 5 wherein said indicating means includes an integrator for integrating the output of said gate and means for indicating the output of said integrator.
Claim 6
Dependent Claim
59 words
A spectrometer as claimed in claim 2 wherein said spectrum characterizing means includes a strip of magnetic tape having correlation signals recorded thereon, said strip being secured to a support which is coupled to said optical element, and a magnetic play back head positioned next to said strip for receiving the correlation signals as said optical element is rotated.
Claim 7
Dependent Claim
22 words
A spectrometer as claimed in claim 7 wherein said correlating means includes an electronic gate which is controlled by said correlation signals.
Claim 8
Dependent Claim
30 words
A spectrometer as claimed in claim 8 wherein said indicating means includes an integrator for integrating the output of said gate and means for indicating the output of said integrator.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |