B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 33/00 (2006.01) B41F 33/02 (2006.01)
Patent
CA 2056171
A METHOD AND DEVICE FOR REGULATING THE WATER-INK EQUILIBRIUM ON AN OFFSET PLATE OF AN OFFSET MACHINE ABSTRACT OF THE DISCLOSURE A method for controlling the water-ink equilibrium in an offset machine including an offset plate (2) fixed on a cylinder (1) comprises the steps of: illumi- nating under normal incidence, with a coherent light source (30), a predetermined area (35) of the offset plate (2) in motion, the density of which is known; collecting in the focal plane of a convergent lens (32) a portion of the light reemitted around an axis perpen- dicular to the plane of the illuminated area (35); and measuring the light intensity in at least one area of the focal plane.
Association de Gestion de L'ecole Francaise de Papeterie Et de L
Balducci Laurent
Goudreau Gage Dubuc
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