Patent ID: 8441641
Filing Date: 2013-05-14
Classification: G01J

Abstract:
1. A method for producing color spectral data of an article, said method comprising the steps of: a) measuring individual specimen reflection intensity data S b) obtaining individual characterized spectral power distribution data SPDC c) generating individual raw spectral power distribution data SPDR d) generating individual normalized spectral power distribution data SPDN e) obtaining an individual white normalization factor W f) repeating the steps of a) through e) for k light units of said first set of one or more light emitting units; and g) producing a high resolution spectrum H wherein: k is the number of the light emitting units measured; n is an index of the light emitting units and is in a range of from 1 to k; λ is a wavelength of lights in a range of from 380 nm to 760 nm.