the green ray
Collection of the City of Paris
2 sheets of colored glass are placed in inclined Plan on a white wall. A yellow glass and blue glass.
The glass projects a yellow colored light on the white wall. The blue glass projects a blue light.
The intensity of the projections depends on the ambient light.
It appears a halo of green light. This color does not exist.
Just look behind the glass plates to realize it. The green halo is not there.
What the viewer sees is neither in the glass nor in the white wall.
It exists only in the eye of the viewer.
The green ray is immaterial and totally impossible to do by hand.
Dimensions of each glass plate: 210cm x 1.2cm 210cmx