Patent ID: 7080912
Filing Date: 2006-07-25
Classification: G01J,G02B

Abstract:
1. An imaging spectrometer, comprising: an all-reflective objective module that receives an image input and produces an objective module output at an exit slit, wherein the objective module is selected from the group consisting of a three-mirror anastigmat having an integral corrector mirror therein, and an all-reflective, relayed optical system comprising a set of five powered mirrors whose powers sum to substantially zero; an imaging detector which receives a first portion of the objective module output; an all-reflective collimating-and-imaging module that receives a second portion of the objective module output as an objective-end input and produces a collimating-end output, wherein the collimating-and-imaging module comprises a reflective triplet, and wherein a mirror of the collimating-and-imaging module includes an intentionally introduced distortion to correct for spectral smile; and a dispersive element that receives the collimating-end output and produces a dispersive-end input into the collimating-and-imaging module that is reflected through the collimating-and-imaging module to produce a spectral-image-end output.