US4254335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrograph-monochromator of grazing incidence type
Assignee: CISE Centro Informazioni Studi e Esperienze SpA
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Filing: 1978-09-29
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Granted: 1981-03-03
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Expires: 1998-09-29
Abstract
Abstract This invention relates to a spectrograph-monochromator of grazing incidence type which is particularly but not exclusively designed for examining soft x-ray and ultraviolet radiation. the spectrograph-monochromator according to the invention comprises an inlet slit, a reflecting diffraction grating and a detector comprising a photographic plate for spectrographic recording or, alternatively, an outlet slit for selecting a single monochromatic component, the improvement being that the inlet slit is disposed in a fixed position relative to a base plate, provided with an openable cover and said grating and said detector are disposed longitudinally displaceable on a curved guide, which represents a portion of a Rouland circle and is rotatable about an axis coinciding with that of said inlet slit.
Inventors
- 👤 Giuseppe Tondello
- 👤 Andrea M. Malvezzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:10
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12; G01J3/18; G01J3/1833
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
A spectrograph-monochromator of grazing incidence type, particularly for soft X-ray and ultraviolet radiation, comprising a base plate and an openable upper cover which define a closed space having vacuum forming means associated thereto, a stationary inlet slit housed in said closed space, a curved guide formed as a portion of a Rowland circle and connected to said base plate through a pivot coaxial with said inlet slit, and a reflecting diffraction grating and a detector which are slidingly mounted on said curved guide and are independently displaceable along the same.
Claim 2
Dependent Claim
90 words
A spectrograph-monochromator of grazing incidence type, particularly for soft X-ray and ultraviolet radiation, comprising a base plate and an openable upper cover which define a closed space having vacuum forming means associated thereto, a stationary inlet slit housed in said closed space, a curved guide formed as a portion of a Rowland circle and connected to said base plate through a pivot coaxial with said inlet slit, and a reflecting diffraction grating and a detector which are slidingly mounted on said curved guide and are independently displaceable along the same.
Claim 3
Dependent Claim
13 words
A spectrograph-monochromator as claimed in claim 1, wherein said inlet slit is adjustable.
Claim 4
Dependent Claim
17 words
A spectrograph-monochromator as claimed in claim 1, wherein said detector comprises a photographic plate for spectrographic recording.
Claim 5
Dependent Claim
20 words
A spectrograph-monochromator as claimed in claim 1, wherein said detector comprises an outlet slit for selecting a single monochromatic component.
Claim 6
Dependent Claim
13 words
A spectrograph-monochromator as claimed in claim 4, wherein said outlet slit is adjustable.
Claim 7
Dependent Claim
67 words
A spectrograph-monochromator as claimed in claim 1, wherein said outlet slit is provided with a wall element rotatably supported by a carriage which is displaceable along said guide, said wall element being slidably traversed by a rod freely pivoted on a support frame for the grating, in such a manner that the plane of the outlet slit is always perpendicular to the direction of the diffracted radiation.
Claim 8
Dependent Claim
53 words
A spectrograph-monochromator as claimed in claim 6, comprising means, controllable from the outside, for making precise predetermined displacements of said carriage supporting the outlet slit, said means comprising a belt stretched along said guide and a pulley supported rotatably by said carriage and driven by an electric stepping motor supported by said carriage.
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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |