PROCEDE D'ECLAIRAGE PERMETTANT D'OBTENIR DES OMBRES COLOREES

a. Procédé d'éclairage permettant d'obtenir des ombres colorées. b. On dispose des lampes de couleur dans trois groupes et on éclaire un objet de façon à obtenir certains rapports de brillance des lampes. c. Application dans les installations d'éclairage intérieures et extérieures. Beautifully and balancedly colored shadows can be imparted by arranging color lamps in three R, G and B groups, illuminating an object to obtain colored shadows of the object to give the ratios of illuminances by the color light lamps; in a range surrounded by the following ratios of j-k-l-m-n-e-f-j in the triangular coordinate of FIG. 2 wherein IR designates an illuminance by only the lamp in the R group; IG designates an illuminance by only the lamp in the G group and IB designates an illuminance by only the lamp in the B group. }Symbol iR iG iB }j 0.78 0.2 0.02 }k 0.65 0.2 0.15 }l 0.65 0.05 0.3 }m 0.55 0.05 0.4 }n 0.2 0.4 0.4 }e 0.05 0.8 0.15 }f 0.18 0.8 0.02 }