Spatially corrected full-cubed hyperspectral imager

Details Spatially corrected full-cubed hyperspectral imager Spatially corrected full-cubed hyperspectral imager

2007-07-10

2007-07-10

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By shade or color

With color transmitting filter

Reexamination Certificate

active

10984561

ABSTRACT:
A hyperspectral imager that achieves accurate spectral and spatial resolution by using a micro-lens array as a series of field lenses, with each lens distributing a point in the image scene received through an objective lens across an area of a detector array forming a hyperspectral detector super-pixel. Each sub-pixel within a super-pixel has a bandpass or other type filter to pass a different band of the image spectrum. The micro-lens spatially corrects the focused image point to project the same image scene point onto all sub-pixels within a super-pixel. A color separator can be used to split the image into sub-bands, with each sub-band image projected onto a different spatially corrected detector array. A shaped limiting aperture can be used to isolate the image scene point within each super-pixels and minimize energy coupling to adjacent super-pixels.

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