Devices and method for spectral measurements
AssigneePlain Sight Systems, Inc.
InventorsFrank Geshwind, Ronald R. Coifman, Andreas Coppi, Richard A. Deverse, William G. Fateley
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Abstract
A spectral measurement device comprising an entrance aperture for receiving an electromagnetic energy and a mask located at the entrance aperture in the form of a two-dimensional encodement pattern. An optical element conditions the electromagnetic energy received from the mask for presentation to the spectral dispersion element and the and a spectral dispersion element disperses the electromagnetic energy in one or more dimensions. Additionally, the optical element conditions the dispersed electromagnetic energy onto an array of detector elements.
Claims18
A spectral measurement device comprising:
- a mask aperture in the form of a two-dimensional encodement pattern disposed to receive an input of an electromagnetic energy, wherein said input of said electromagnetic energy is a diffuse input and non-imaging;
- a spectral dispersion element for dispersing said electromagnetic energy in one or more dimensions to provide a dispersed electromagnetic energy;
- an array of detector elements;
- and
- an optical element for conditioning said electromagnetic energy received from said mask aperture for presentation to said spectral dispersion element and conditioning said dispersed electromagnetic energy onto said array of detector elements.
A spectral measurement device comprising:
- a mask aperture in the form of a two-dimensional encodement pattern disposed to receive an input of an electromagnetic energy, wherein said input of said electromagnetic energy is a diffuse input and nonimaging;
- a concave grating for conditioning and dispersing said electromagnetic energy in one or more dimensions to provide a dispersed electromagnetic energy;
- and
- an array of detector elements for receiving said dispersed electromagnetic energy from said concave grating.
A method for spectral measurement, comprising the steps of:
- receiving an input of an electromagnetic energy through a mask aperture in the form of a two-dimensional encodement pattern, wherein said input of said electromagnetic energy is a diffuse input and non-imaging;
- dispersing said electromagnetic energy in one or more dimensions to provide a dispersed electromagnetic energy;
- conditioning said electromagnetic energy received from said mask aperture for presentation to a spectral dispersion element and conditioning said dispersed electromagnetic energy onto an array of detector elements.
Dependencies are inferred from the claim text.