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US 11,692,873 B2Granted
Compact spectrometers and instruments including them
AssigneePerkinElmer Health Sciences, Inc.
InventorsMahsa Farsad, David Aikens
Life of this patent
Estimating the term…
Abstract
A spectrometer with a Schmidt reflector is described. The spectrometer may include a Schmidt corrector and a dispersive element as separate components. Alternatively, the Schmidt corrector and dispersive element may be combined into a single optical component. The spectrometer may further include a field-flattener lens.
Claims20
An optical spectrometer comprising:
- an off-axis telescope comprising a reflective corrector;
- an Echelle grating configured to receive light from a light source before the off-axis telescope receives any of the light from the light source;
- and
- a detector optically coupled to the off-axis telescope and configured to receive, via a light path between the off-axis telescope and the detector, light reflected by the off-axis telescope, wherein light incident on the detector comprises a plurality of wavelengths that are spatially separated by the Echelle grating.
1 more element
A single-pass optical spectrometer comprising:
- an Echelle grating;
- an off-axis Schmidt telescope comprising a reflective Schmidt corrector configured to reflect light along an unobstructed light path;
- and
- a detector optically coupled to the off-axis Schmidt telescope and configured to receive, via the unobstructed light path, the light reflected by the reflective Schmidt corrector, wherein light incident on the detector comprises a plurality of wavelengths that are spatially separated by the Echelle grating.
1 more element
Dependencies are inferred from the claim text.