On the left, the intensity of the light affecting the array of glial cells, at the entrance to the light funnel. Green light strikes at an angle of 6 degrees to the right. On the right, after progressing along the cells up to the cells of the benches, some light leaked into the benches on the right and into the nests in the rest of the area, but most of it is still concentrated in the original cells. The color scale represents the intensity of the light.