Optics: measuring and testing – By shade or color – Trichromatic examination
Patent
1984-09-13
1986-11-25
Evans, F. L.
Optics: measuring and testing
By shade or color
Trichromatic examination
356407, 356425, G01J 350
Patent
active
046245715
ABSTRACT:
Apparatus for detecting the coloring of moving tiles for the purpose of dividing their flow into a plurality of flows as a function of the quality of their color. The apparatus detects the color of successive portions of the moving tile and breaks down the detected light spectrum into the three primary colors according to the trichromatic theory. The intensity of each primary color is converted into an electric function by a bank of photoelectric sensors, and this function is processed and compared in a microprocessor with coded signals corresponding to the ideal or optimum coloring that the detected tile should present. The microprocessor emits the signals for automating the division of the flow of scanned tiles into a plurality of flows differing in the quality of the coloring of said tiles.
REFERENCES:
patent: 3867039 (1975-02-01), Nelson
patent: 4088227 (1978-05-01), Lockett
patent: 4278538 (1981-07-01), Lawrence et al.
patent: 4281933 (1981-08-01), Houston et al.
patent: 4476982 (1984-10-01), Paddock et al.
Lewis et al, American Dyestuff Reporter, Oct. 9, 1967, pp. 37-40.
Mantovani Gianni
Pasqui Daniele
Salda Luciano
Evans F. L.
M.S. Sistemi Automatici S.r.l.
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