Spectrometers with retro-reflective surfaces and related instruments
AssigneePerkinElmer Health Sciences, Inc.
InventorsMahsa Farsad, David Aikens
Life of this patent
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Abstract
Certain aspects, configurations, embodiments, and examples of a spectrometer with a compact design are described. In some implementations, the spectrometers according to the present disclosure may be used for optical emission spectroscopy (OES). The spectrometer architecture and imager described herein allows a single detector, compact, and high-throughput spectrometer. One or more aspects include an Echelle grating in a spectrometer that reuses optical surfaces to separate wavelengths of light. For example, in one or more aspects, a reflective triplet telescope acts as both a collimator and imager. By reusing optical components, the relative size of the spectrometer may be reduced.
Claims19
A spectrometer comprising:
- an aperture configured to permit passage of light;
- a dispersive element;
- an Echelle grating;
- at least one reflecting surface;
- and
- a detector,
- wherein the at least one reflecting surface is optically coupled to aperture and is optically coupled to the Echelle grating through the dispersive element,
- wherein light received by the aperture is directed to the at least one reflecting surface,
- wherein the light directed from the aperture to the at least one reflecting surface is reflected by the at least one reflecting surface to the Echelle grating,
- wherein light provided by the Echelle grating is directed from the Echelle grating to the at least one reflecting surface, and
- wherein the light directed from the Echelle grating to the at least one reflecting surface is reflected by the at least one reflecting surface to the detector.
A spectrometer comprising:
- an aperture configured to permit passage of light;
- a dispersive element;
- an Echelle grating;
- a mirror system;
- a mirror;
- a telescope system;
- and
- a detector,
- wherein the aperture is optically coupled to the mirror system, the mirror system is optically coupled to the Echelle grating, and is optically coupled to the mirror,
- wherein light received by the aperture is directed to the mirror system,
- wherein the light directed from the aperture to the mirror system is reflected by the mirror system to the Echelle grating,
- wherein light provided by the Echelle grating is directed from the Echelle grating to the mirror system, and
- wherein the light directed from the Echelle grating to the mirror system is reflected by the mirror system to the detector.
Dependencies are inferred from the claim text.