WAVENUMBER LINEAR GRATING SPECTROMETER

WAVENUMBER LINEAR GRATING SPECTROMETER

Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received electromagnetic radiation; a dispersive assembly including first and second diffractive gratings, wherein t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Bower, Bradley, A, Buckland, Eric, L, Saxer, Christopher, Hart, Robert H, Huening, Pete
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
COLORIMETRY
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
RADIATION PYROMETRY
SURGERY
TESTING
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Beschreibung
Zusammenfassung:Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received electromagnetic radiation; a dispersive assembly including first and second diffractive gratings, wherein the first diffraction grating is configured in a first dispersive stage to receive the collimated electromagnetic radiation and wherein the dispersive assembly includes at least two dispersive stages configured to disperse the collimated input; and an imaging lens assembly configured to image the electromagnetic radiation dispersed by the at least two dispersive stages onto a linear detection array such that the variation in frequency spacing along the linear detection array is no greater than about 10%.