The phenomenon previously described, takes place in two phases, however, the Induction Chromatique brings it about simultaneously. In other words, it stabilizes and makes visible a phenomenon that can only be captured momentarily and in very special circumstances. The color that appears is and is not — it has a virtual existence — however, it is as real as the pigments used. This is demonstrated by inductive yellow, which is obtained by [superimposing] black, blue, and white; inductive orange, produced with blue, yellow, and black; or the induction of red, by means of green, white, and black.

Based on these experiences with the phenomenon of retinal persistence, Cruz-Diez, also developed, Douche d’Induction Chromatique in 1965 and Induction à Double Fréquence in 1986.

1965

Douche d’Induction Chromatique (Paris 1965)
Consists of interior spaces that are closed off with narrow, transparent monochrome sheets, hanging from a circular structure, that allow us to observe the reality around us. Once inside the showers, the monochromatic environment saturates the retina. Due to the gaps between the sheets, a subtractive and natural vision is established, causing the viewer to perceive the complementary color.

1986

Induction à Double Fréquence (Paris 1986)
Generated by superimposing a lineal frequency of the “chromatic event modules” (1,2,3), and another frequency composed by a black line and a gap (1-2).