Patent ID: 7535566
Filing Date: 2009-05-19
Classification: G01J,G01N,G02B

Abstract:
1. An electromagnetic beam chromatic shifting and directing means for use in reflectively directing a spectroscopic beam of electromagnetic radiation while simultaneously de-emphasizing intensity in one range of wavelengths and emphasizing wavelength intensity outside said range, said electromagnetic beam chromatic shifting and directing means comprising at least: a substrate made of a first material, and a layer of a second material on a surface thereof; such that in use a spectroscopic beam of electromagnetic radiation, which is characterized by a first intensity vs. wavelength spectrum, is caused to impinge, at an oblique angle of incidence, on the layer of said second material of said electromagnetic beam chromatic shifting and directing means so that it reflects with a second intensity vs. wavelength spectrum that is altered from that of said first intensity vs. wavelength spectrum.