Patent ID: 7327896
Filing Date: 2008-02-05
Classification: G01J,G01N

Abstract:
1. Testing apparatus for testing a spectral imaging system, comprising: a wavelength generator for providing radiation over a broad spectrum in a predetermined pattern representing a target; an electronically controlled selective filter arrangement positioned relative to said wavelength generator to pass only certain wavelengths of radiation to said spectral imaging system along a transmission path; said electronically controlled selective filter arrangement including a control to remove or add a predetermined portion of one or more selected wavelengths from, or to, said transmission path; an emissions simulator operable to generate radiation over a broad spectrum in a predetermined chosen pattern representing emissions from said target; said emissions simulator being positioned to project its radiation of said chosen pattern, to said electronically controlled selective filter arrangement; said control being operable to select a predetermined one or more wavelengths from said emissions simulator for transmission along said transmission path.