Patent ID: 7929134
Filing Date: 2011-04-19
Classification: G01B,G01J

Abstract:
1. A spectrometer, comprising: an electromagnetic radiation (EMR) receiving element to receive EMR from a source; a set of collimating optics to collimate the EMR received from the receiving element to produce a collimated EMR; a first dispersive optical element for dispersing the collimated EMR, the first dispersive optical element being positioned to receive the collimated EMR from the receiving element via the collimating optics; a second dispersive optical element spaced apart from the first dispersive optical element to produce further dispersed EMR, where the first dispersive optical element and the second dispersive optical element cooperate to disperse received EMR into a plurality of even frequency spaced EMR spectra; and a set of focusing optics for focusing the dispersed EMR received from the second dispersive optical element; and a detector positioned to receive the EMR after passing though an optical path that includes the receiving element, the set of collimating optics, the first dispersive optical element, the second dispersive optical element, and the set of focusing optics.