Patent ID: 9232130
Filing Date: 2016-01-05
CPC Classification: G01J,G01N,G02B

Claim Text:
1. An imaging system for imaging a translucent object, the imaging system comprising: a slit configured to allow incident electromagnetic radiation to enter the imaging system; a dispersive element configured to receive and spectrally disperse the incident electromagnetic radiation into its spectral components to provide spectrally dispersed electromagnetic radiation, the dispersive element having a zero order mode of diffraction; a focusing optic configured to focus the spectrally dispersed electromagnetic radiation onto an image plane, and further configured to focus non-dispersed electromagnetic radiation corresponding to the zero order mode of the dispersive element onto the image plane, the non-dispersed electromagnetic radiation including a main beam; and at least one imaging detector positioned at the image plane and configured to produce a spectral image from the spectrally dispersed electromagnetic radiation and a zero-mode image from the non-dispersed electromagnetic radiation, the zero-mode image including an indication of a translucence of the translucent object, the at least one imaging detector including an array of pixels configured to receive the non-dispersed electromagnetic radiation, a first plurality of pixels of the array of pixels configured to receive at least a portion of the non-dispersed electromagnetic radiation excluding the main beam, the first plurality of pixels further configured to measure intensity of the portion of the non-dispersed electromagnetic radiation, the intensity being representative of the translucence of the translucent object.