Techniques and assemblies for light ray steering are described. A method includes receiving solar rays onto a surface of an electro-optic prism. The electro-optic prism includes a first electrode positioned on a first substrate, a second electrode positioned on a second substrate, and an electro-optic material positioned between the first and second electrodes. The first electrode includes multiple substantially parallel linear electrodes. The method further includes applying multiple voltages to some or all of the substantially parallel linear electrodes to generate a refractive index gradient across the electro-optic prism. The method further includes controlling the refractive index gradient so that the solar rays exit the electro-optic prism in a direction substantially normal to a light focusing element, and utilizing the light focusing element to focus the solar rays on a solar energy collector.