Patent ID: 6036317
Filing Date: 2000-03-14
Classification: G01J,H04N

Abstract:
A method of spectral or colorimetric characterisation of a self-illuminating imaging system in which the imaging system produces a color field which is matched visually with a reference color field, comprising:a) using a reference color field constructed as a transparent color filter film and having known spectral or colorimetric reference values;b) producing a reference color area on the imaging system;c) covering at least a part of the reference color area with the transparent color filter film;d) producing a color field on the imaging system in the vicinity of the area covered by the transparent color filter film;e) visually matching the color field until the color impression of the color field corresponds to the color impression of the color signal generated by the transparent color filter film; andf) comparing the resulting spectral or colorimetric values of the matched color field with the spectral or colorimetric reference values of the reference color field for spectral or colorimetric characterisation of the imaging system.