Patent ID: 7583419
Filing Date: 2009-09-01
Classification: G01J,H04N

Abstract:
1. A method for creating a digital master of a graphical image in a hyperspectral form, the method comprising the steps of: dividing a light beam from an illumination source into a plurality of component beams each representing one of a plurality of hyperspectral bandpasses, wherein the plurality of hyperspectral bandpasses define a spectrum characterized by wavelengths ranging continuously between 360 and 830 nanometers, and wherein the component beam for each hyperspectral bandpass is characterized by a substantially unique and non-overlapping selection of continuous wavelengths from the spectrum; successively illuminating one or more portions of the graphical image with each of the plurality of component beams; measuring a light intensity with a sensor for each of the one or more illuminated portions of the graphical image with respect to each of the plurality of component beams; transforming each measured light intensity into a relative light intensity based on minimum and maximum light intensities measured by the sensor; and saving the relative light intensities in a buffer or data file as a hyperspectral trace representing a spectral power distribution.