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Title: Full-frame, programmable hyperspectral imager

Abstract

A programmable, many-band spectral imager based on addressable spatial light modulators (ASLMs), such as micro-mirror-, micro-shutter- or liquid-crystal arrays, is described. Capable of collecting at once, without scanning, a complete two-dimensional spatial image with ASLM spectral processing applied simultaneously to the entire image, the invention employs optical assemblies wherein light from all image points is forced to impinge at the same angle onto the dispersing element, eliminating interplay between spatial position and wavelength. This is achieved, as examples, using telecentric optics to image light at the required constant angle, or with micro-optical array structures, such as micro-lens- or capillary arrays, that aim the light on a pixel-by-pixel basis. Light of a given wavelength then emerges from the disperser at the same angle for all image points, is collected at a unique location for simultaneous manipulation by the ASLM, then recombined with other wavelengths to form a final spectrally-processed image.

Inventors:
;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1372642
Patent Number(s):
9,716,846
Application Number:
14/348,001
Assignee:
LOS ALAMOS NATIONAL SECURITY, LLC LANL
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Sep 28
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Love, Steven P., and Graff, David L. Full-frame, programmable hyperspectral imager. United States: N. p., 2017. Web.
Love, Steven P., & Graff, David L. Full-frame, programmable hyperspectral imager. United States.
Love, Steven P., and Graff, David L. Tue . "Full-frame, programmable hyperspectral imager". United States. doi:. https://www.osti.gov/servlets/purl/1372642.
@article{osti_1372642,
title = {Full-frame, programmable hyperspectral imager},
author = {Love, Steven P. and Graff, David L.},
abstractNote = {A programmable, many-band spectral imager based on addressable spatial light modulators (ASLMs), such as micro-mirror-, micro-shutter- or liquid-crystal arrays, is described. Capable of collecting at once, without scanning, a complete two-dimensional spatial image with ASLM spectral processing applied simultaneously to the entire image, the invention employs optical assemblies wherein light from all image points is forced to impinge at the same angle onto the dispersing element, eliminating interplay between spatial position and wavelength. This is achieved, as examples, using telecentric optics to image light at the required constant angle, or with micro-optical array structures, such as micro-lens- or capillary arrays, that aim the light on a pixel-by-pixel basis. Light of a given wavelength then emerges from the disperser at the same angle for all image points, is collected at a unique location for simultaneous manipulation by the ASLM, then recombined with other wavelengths to form a final spectrally-processed image.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 25 00:00:00 EDT 2017},
month = {Tue Jul 25 00:00:00 EDT 2017}
}

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Works referenced in this record:

Single-Shot Spectral Imager
patent-application, December 2010


Tunable Electro-Optic Filter Stack
patent-application, December 2014