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US 6,549,280 B2Granted
Spectrometer with double off-axis schmidt telescope
AssigneeGalileo Avionica S.p.A.
InventorsPaolinetti Riccardo, Pieri Silvano, Romoli Andrea
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Abstract
The spectrometer comprises, in combination: a slit (1) for the entry of a light beam; a collimator; a dispersion system (9); focusing means and a detector (13). The collimator comprises at least a first concave spherical mirror (3) and at least a first Schmidt plate (5) in an off-axis arrangement.
Claims22
A spectrometer comprising, in combination:
- a slit for the entry of a light beam;
- a collimator including at least a first concave spherical mirror and at least a first Schmidt plate;
- a dispersion system;
- focusing means including a second concave spherical mirror and at least a second Schmidt plate for focusing a dispersed beam;
- a detector receiving a beam from said focusing means.
2 more elements
A spectrometer comprising, in combination:
- a slit for entry of a light beam, said silt being formed in a flat mirror;
- a curved mirror which reflects the beam entering from said silt toward said flat mirror, said curved mirror correcting silt curvature;
- a collimator including at least a first concave spherical mirror receiving the beam from said flat mirror and at least a first Schmidt plate;
- a dispersion system;
- focusing means;
- and
- a detector.
4 more elements
A spectrometer comprising, in combination:
- a slit for the entry of a light beam, said silt being curved with a radius of curvature equal to a radius of curvature of an image originating from an observation telescope, which compensates curvature of the spectrometer,
- a collimator;
- a dispersion system;
- focusing means;
- a detector;
- characterized in that said collimator comprises at least a first concave spherical mirror and at least a first Schmidt plate.
3 more elements
A spectrometer comprising:
- a slit for passing a light beam;
- a collimator receiving the light beam from said slit, said collimator including a first concave spherical mirror and a first Schmidt plate;
- a dispersion system receiving the light beam from the collimator;
- focusing means receiving the light beam from the dispersion system, said focusing means including a second concave spherical mirror and a second Schmidt plate for focusing the light beam;
- a detector receiving the light beam from said focusing means.
2 more elements
A spectrometer comprising:
- a slit for passing a light beam;
- a collimator receiving the light beam from said slit, said collimator including a concave spherical mirror and a Schmidt plate;
- a dispersion system receiving the light beam from said collimator;
- focusing means receiving the light beam from said dispersion system;
- a detector receiving the light beam from said focusing means;
- a plurality of optical fibers arranged in a system to adapt a curvature of an image entering from said silt and originating from an observation telescope.
3 more elements
Dependencies are inferred from the claim text.