On-chip spectral filtering using CCD array for imaging and...

Details On-chip spectral filtering using CCD array for imaging and... On-chip spectral filtering using CCD array for imaging and...

2007-10-09

2007-10-09

Nguyen, Tu T (Department: 2886)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

Reexamination Certificate

active

11554178

ABSTRACT:
A spectral filtering apparatus and method is presented, which enables the functions of hyperspectral imaging to be performed with increased speed, simplicity, and performance that are required for commercial products. The apparatus includes a photosensitive array having a plurality of photosensitive elements such that different subsections of photosensitive elements of the array receive light of a different wavelength range of a characteristic spectrum of a target, and output electronics combines signals of at least two photosensitive elements in a subsection of the array and outputs the combined signal as a measure of the optical energy within a bandwidth of interest of the characteristic spectrum.

REFERENCES:
patent: 6636752 (2003-10-01), Madarasz et al.
patent: 7130041 (2006-10-01), Bouzid et al.
patent: 2002/0154315 (2002-10-01), Myrick
patent: 2003/0082516 (2003-05-01), Straus

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