US4885465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrum display device for x-ray microanalyzer or the like
Assignee: Jeol Ltd
•
Filing: 1988-07-05
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Granted: 1989-12-05
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Expires: 2008-07-05
Abstract
Abstract A display for an x-ray microanalyzer including a wavelength-dispersive x-ray spectrometer and an energy-dispersive x-ray spectrometer for producing two kinds of spectra from the same region on a specimen. A circuit enables markers to be superimposed on the spectra to indicates some wavelengths and energies of the characteristic x-ray emanating from a chemical element selected by the operator. The markers faciliatate precisely confirming the existence of the element in the region, based on the two kinds of spectra.
Inventors
- 👤 Yoshitaka Nagatsuka
- 👤 Masaki Saito
- 👤 Yoshitaka Kawabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:09
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/30; G01N; G01N23/00; G01N23/22; G01N23/225; G01N23/2251; G01N23/2252; G01R31/00; G01R31/28; G01R31/302; G01R31/305
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
118 words
A apectrum display device for use with an electron beam device which irradiates the surface of a specimen with an electron beam to produce x-rays from the specimen and includes a wavelength-dispersive x-ray spectrometer, and an energy-dispersive x-ray spectrometer, said display device comprising: a display means having a viewing screen on which spectra obtained from the same region on the specimen by the two x-ray spectrometers are simultaneourly displayed; an input device for permitting one to designate a desired chemical element; and said spectrum display device including means which superimposes markers on the spectra displayed on the display means, the markers indicating the energies and wavelength of characteristic x-rays emanating from the element designated by the designation means.
Claim 2
Dependent Claim
118 words
A apectrum display device for use with an electron beam device which irradiates the surface of a specimen with an electron beam to produce x-rays from the specimen and includes a wavelength-dispersive x-ray spectrometer, and an energy-dispersive x-ray spectrometer, said display device comprising: a display means having a viewing screen on which spectra obtained from the same region on the specimen by the two x-ray spectrometers are simultaneourly displayed; an input device for permitting one to designate a desired chemical element; and said spectrum display device including means which superimposes markers on the spectra displayed on the display means, the markers indicating the energies and wavelength of characteristic x-rays emanating from the element designated by the designation means.
Claim 3
Dependent Claim
34 words
The spectrum display device of claim 1, wherein the markers are displayed in different colors or patterns according to the kinds of spectral lines, of the characteristic x-ray which are indicated by the markers.
Claim 4
Dependent Claim
133 words
A spectrum display device for use with an electron beam device which irradiates the surface of a specimen with an electron beam to produce x-rays from the specimen and includes a wavelength-dispersive x-ray spectrometer, and an energy-dispersive x-ray spectrometer, said display device comprising: a display means having a viewing screen on which spectra obtained from the same region on the specimen by the two x-ray spectrometers are displayed; an input device for permitting one to designate a desired chemical element; said spectrum display device including a means for displaying the name of the designated element on the display means; and a means which superimposes markers on the spectra displayed on the display means, the markers indicating the energies and wavelength of the characteristic x-rays emanating from the element designated by the designating means.
Claim 5
Dependent Claim
133 words
A spectrum display device for use with an electron beam device which irradiates the surface of a specimen with an electron beam to produce x-rays from the specimen and includes a wavelength-dispersive x-ray spectrometer, and an energy-dispersive x-ray spectrometer, said display device comprising: a display means having a viewing screen on which spectra obtained from the same region on the specimen by the two x-ray spectrometers are displayed; an input device for permitting one to designate a desired chemical element; said spectrum display device including a means for displaying the name of the designated element on the display means; and a means which superimposes markers on the spectra displayed on the display means, the markers indicating the energies and wavelength of the characteristic x-rays emanating from the element designated by the designating means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |