High etendue imaging fourier transform spectrometer

Details High etendue imaging fourier transform spectrometer High etendue imaging fourier transform spectrometer

1996-07-19

1998-07-07

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

G01B 902

Patent

active

057777365

ABSTRACT:
A high etendue imaging Fourier transform spectrometer which utilizes a two beam interferometer is provided. The high etendue imaging Fourier transform spectrometer is adapted to create an image of an entire target area with the resolution and throughput comparable to that of a Michelson interferometer based spectrometer yet does not require moving parts. The disclosed imaging spectrometer is comprised of various image forming optical elements; an two beam interferometer, which provides two interfering images at the image plane, resulting in the spectral autocorrelation modulation of the scene image; a CCD array camera to detect this interference modulated image; a scanning mechanism to translate the image scene through the autocorrelation modulated image plane thereby allowing a sequence of the modulated scene images to be recorded; a control system for operatively controlling the image forming optical elements, the scanning mechanism and CCD array camera; and an image data analyzer adapted for recording and processing the intensity modulation signal including the step of Fourier transforming the intensity modulation signal for each of individual scene area of the target which yields the spectrum associated with each scene area.

REFERENCES:
patent: 4509857 (1985-04-01), Vermande
patent: 4523846 (1985-06-01), Breckinridge et al.
patent: 4957371 (1990-09-01), Pellicori et al.
patent: 5059027 (1991-10-01), Roesler et al.
patent: 5131747 (1992-07-01), Cerutti-Maori et al.
patent: 5223910 (1993-06-01), Simeoni et al.
patent: 5416325 (1995-05-01), Bountempo et al.
Demro, et al., "Design of a Multispectral, Wedge Filter, Remote-Sensing Instrument Incorporating a Multi-Port, Thinned, CCD Area Array", SPIE Aerosense '95 Imaging Spectrometry Session, pp. 1-7 (Apr. 1995).
Mailhes, et al., "Spectral Image Compression", SPIE Advanced Optical Instrumentation for Remote Sensing of the Earth's Surface from Space, vol. 1129, pp. 85-90 (1989).
Vermande,"High-Spectral Resolution Remote-Sensing Instruments Developed and Under Development at CNES", Proceedings of the 3rd International Colloquium on Spectral Signatures of Objects in Remote Sensing, Les Arcs, France, 16-20 Dec., pp. 227-232, (1985) (ESA SP 247).
Vermande, et al., "Interferometric Spectro-Imager System (ISIS)", SPIE Optical System for Space Applications, vol. 810, pp. 117-124 (1987).

Affiliated with

Also associated with

Rating

High etendue imaging fourier transform spectrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High etendue imaging fourier transform spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High etendue imaging fourier transform spectrometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1211925